2613 lines
98 KiB
C++
2613 lines
98 KiB
C++
// Formatting library for C++ - formatting library tests
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//
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// Copyright (c) 2012 - present, Victor Zverovich
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// All rights reserved.
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//
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// For the license information refer to format.h.
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#include <stdint.h>
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#include <cctype>
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#include <cfloat>
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#include <climits>
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#include <cmath>
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#include <cstring>
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#include <iterator>
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#include <list>
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#include <memory>
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#include <string>
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#include <type_traits>
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// Check if fmt/format.h compiles with windows.h included before it.
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#ifdef _WIN32
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# include <windows.h>
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#endif
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// Check if fmt/format.h compiles with the X11 index macro defined.
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#define index(x, y) no nice things
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#include "fmt/format.h"
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#undef index
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#include "gmock.h"
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#include "gtest-extra.h"
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#include "mock-allocator.h"
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#include "util.h"
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#undef ERROR
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using fmt::basic_memory_buffer;
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using fmt::format;
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using fmt::format_error;
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using fmt::memory_buffer;
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using fmt::string_view;
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using fmt::wmemory_buffer;
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using fmt::wstring_view;
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using fmt::detail::max_value;
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using testing::Contains;
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using testing::Return;
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using testing::StrictMock;
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namespace {
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#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 408
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template <typename Char, typename T> bool check_enabled_formatter() {
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static_assert(std::is_default_constructible<fmt::formatter<T, Char>>::value,
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"");
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return true;
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}
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template <typename Char, typename... T> void check_enabled_formatters() {
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auto dummy = {check_enabled_formatter<Char, T>()...};
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(void)dummy;
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}
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TEST(FormatterTest, TestFormattersEnabled) {
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check_enabled_formatters<char, bool, char, signed char, unsigned char, short,
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unsigned short, int, unsigned, long, unsigned long,
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long long, unsigned long long, float, double,
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long double, void*, const void*, char*, const char*,
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std::string, std::nullptr_t>();
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check_enabled_formatters<wchar_t, bool, wchar_t, signed char, unsigned char,
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short, unsigned short, int, unsigned, long,
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unsigned long, long long, unsigned long long, float,
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double, long double, void*, const void*, wchar_t*,
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const wchar_t*, std::wstring, std::nullptr_t>();
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}
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#endif
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// Format value using the standard library.
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template <typename Char, typename T>
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void std_format(const T& value, std::basic_string<Char>& result) {
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std::basic_ostringstream<Char> os;
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os << value;
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result = os.str();
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}
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#ifdef __MINGW32__
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// Workaround a bug in formatting long double in MinGW.
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void std_format(long double value, std::string& result) {
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char buffer[100];
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safe_sprintf(buffer, "%Lg", value);
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result = buffer;
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}
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void std_format(long double value, std::wstring& result) {
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wchar_t buffer[100];
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swprintf(buffer, L"%Lg", value);
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result = buffer;
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}
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#endif
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} // namespace
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struct uint32_pair {
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uint32_t u[2];
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};
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TEST(UtilTest, BitCast) {
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auto s = fmt::detail::bit_cast<uint32_pair>(uint64_t{42});
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EXPECT_EQ(fmt::detail::bit_cast<uint64_t>(s), 42ull);
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s = fmt::detail::bit_cast<uint32_pair>(~uint64_t{0});
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EXPECT_EQ(fmt::detail::bit_cast<uint64_t>(s), ~0ull);
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}
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TEST(UtilTest, Increment) {
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char s[10] = "123";
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increment(s);
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EXPECT_STREQ("124", s);
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s[2] = '8';
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increment(s);
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EXPECT_STREQ("129", s);
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increment(s);
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EXPECT_STREQ("130", s);
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s[1] = s[2] = '9';
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increment(s);
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EXPECT_STREQ("200", s);
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}
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TEST(UtilTest, ParseNonnegativeInt) {
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if (max_value<int>() != static_cast<int>(static_cast<unsigned>(1) << 31)) {
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fmt::print("Skipping parse_nonnegative_int test\n");
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return;
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}
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fmt::string_view s = "10000000000";
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auto begin = s.begin(), end = s.end();
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EXPECT_THROW_MSG(
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parse_nonnegative_int(begin, end, fmt::detail::error_handler()),
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fmt::format_error, "number is too big");
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s = "2147483649";
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begin = s.begin();
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end = s.end();
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EXPECT_THROW_MSG(
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parse_nonnegative_int(begin, end, fmt::detail::error_handler()),
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fmt::format_error, "number is too big");
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}
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TEST(IteratorTest, CountingIterator) {
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fmt::detail::counting_iterator it;
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auto prev = it++;
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EXPECT_EQ(prev.count(), 0);
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EXPECT_EQ(it.count(), 1);
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EXPECT_EQ((it + 41).count(), 42);
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}
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TEST(IteratorTest, IsOutputIterator) {
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EXPECT_TRUE((fmt::detail::is_output_iterator<char*, char>::value));
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EXPECT_FALSE((fmt::detail::is_output_iterator<const char*, char>::value));
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EXPECT_FALSE((fmt::detail::is_output_iterator<std::string, char>::value));
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EXPECT_TRUE(
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(fmt::detail::is_output_iterator<std::back_insert_iterator<std::string>,
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char>::value));
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EXPECT_TRUE(
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(fmt::detail::is_output_iterator<std::string::iterator, char>::value));
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EXPECT_FALSE((fmt::detail::is_output_iterator<std::string::const_iterator,
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char>::value));
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EXPECT_FALSE((fmt::detail::is_output_iterator<std::list<char>, char>::value));
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EXPECT_TRUE((
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fmt::detail::is_output_iterator<std::list<char>::iterator, char>::value));
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EXPECT_FALSE((fmt::detail::is_output_iterator<std::list<char>::const_iterator,
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char>::value));
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EXPECT_FALSE((fmt::detail::is_output_iterator<uint32_pair, char>::value));
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}
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TEST(MemoryBufferTest, Ctor) {
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basic_memory_buffer<char, 123> buffer;
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EXPECT_EQ(static_cast<size_t>(0), buffer.size());
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EXPECT_EQ(123u, buffer.capacity());
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}
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static void check_forwarding(mock_allocator<int>& alloc,
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allocator_ref<mock_allocator<int>>& ref) {
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int mem;
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// Check if value_type is properly defined.
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allocator_ref<mock_allocator<int>>::value_type* ptr = &mem;
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// Check forwarding.
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EXPECT_CALL(alloc, allocate(42)).WillOnce(testing::Return(ptr));
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ref.allocate(42);
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EXPECT_CALL(alloc, deallocate(ptr, 42));
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ref.deallocate(ptr, 42);
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}
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TEST(AllocatorTest, allocator_ref) {
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StrictMock<mock_allocator<int>> alloc;
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typedef allocator_ref<mock_allocator<int>> test_allocator_ref;
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test_allocator_ref ref(&alloc);
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// Check if allocator_ref forwards to the underlying allocator.
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check_forwarding(alloc, ref);
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test_allocator_ref ref2(ref);
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check_forwarding(alloc, ref2);
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test_allocator_ref ref3;
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EXPECT_EQ(nullptr, ref3.get());
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ref3 = ref;
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check_forwarding(alloc, ref3);
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}
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typedef allocator_ref<std::allocator<char>> std_allocator;
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static void check_move_buffer(
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const char* str, basic_memory_buffer<char, 5, std_allocator>& buffer) {
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std::allocator<char>* alloc = buffer.get_allocator().get();
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basic_memory_buffer<char, 5, std_allocator> buffer2(std::move(buffer));
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// Move shouldn't destroy the inline content of the first buffer.
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EXPECT_EQ(str, std::string(&buffer[0], buffer.size()));
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EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size()));
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EXPECT_EQ(5u, buffer2.capacity());
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// Move should transfer allocator.
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EXPECT_EQ(nullptr, buffer.get_allocator().get());
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EXPECT_EQ(alloc, buffer2.get_allocator().get());
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}
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TEST(BufferAppenderTest, BufferAppenderDefaultConstruct) {
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// back_insert_iterator is not default-constructible before C++20, so
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// buffer_appender can only be default-constructible when back_insert_iterator
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// is.
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static_assert(
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std::is_default_constructible<
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std::back_insert_iterator<fmt::detail::buffer<char>>>::value ==
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std::is_default_constructible<
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fmt::detail::buffer_appender<char>>::value,
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"");
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}
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#ifdef __cpp_lib_ranges
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TEST(BufferAppenderTest, BufferAppenderOutputIterator) {
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static_assert(std::output_iterator<fmt::detail::buffer_appender<char>, char>);
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}
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#endif
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TEST(MemoryBufferTest, MoveCtorInlineBuffer) {
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std::allocator<char> alloc;
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basic_memory_buffer<char, 5, std_allocator> buffer((std_allocator(&alloc)));
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const char test[] = "test";
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buffer.append(string_view(test, 4));
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check_move_buffer("test", buffer);
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// Adding one more character fills the inline buffer, but doesn't cause
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// dynamic allocation.
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buffer.push_back('a');
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check_move_buffer("testa", buffer);
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}
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TEST(MemoryBufferTest, MoveCtorDynamicBuffer) {
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std::allocator<char> alloc;
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basic_memory_buffer<char, 4, std_allocator> buffer((std_allocator(&alloc)));
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const char test[] = "test";
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buffer.append(test, test + 4);
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const char* inline_buffer_ptr = &buffer[0];
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// Adding one more character causes the content to move from the inline to
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// a dynamically allocated buffer.
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buffer.push_back('a');
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basic_memory_buffer<char, 4, std_allocator> buffer2(std::move(buffer));
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// Move should rip the guts of the first buffer.
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EXPECT_EQ(inline_buffer_ptr, &buffer[0]);
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EXPECT_EQ("testa", std::string(&buffer2[0], buffer2.size()));
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EXPECT_GT(buffer2.capacity(), 4u);
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}
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static void check_move_assign_buffer(const char* str,
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basic_memory_buffer<char, 5>& buffer) {
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basic_memory_buffer<char, 5> buffer2;
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buffer2 = std::move(buffer);
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// Move shouldn't destroy the inline content of the first buffer.
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EXPECT_EQ(str, std::string(&buffer[0], buffer.size()));
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EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size()));
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EXPECT_EQ(5u, buffer2.capacity());
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}
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TEST(MemoryBufferTest, MoveAssignment) {
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basic_memory_buffer<char, 5> buffer;
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const char test[] = "test";
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buffer.append(test, test + 4);
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check_move_assign_buffer("test", buffer);
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// Adding one more character fills the inline buffer, but doesn't cause
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// dynamic allocation.
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buffer.push_back('a');
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check_move_assign_buffer("testa", buffer);
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const char* inline_buffer_ptr = &buffer[0];
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// Adding one more character causes the content to move from the inline to
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// a dynamically allocated buffer.
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buffer.push_back('b');
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basic_memory_buffer<char, 5> buffer2;
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buffer2 = std::move(buffer);
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// Move should rip the guts of the first buffer.
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EXPECT_EQ(inline_buffer_ptr, &buffer[0]);
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EXPECT_EQ("testab", std::string(&buffer2[0], buffer2.size()));
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EXPECT_GT(buffer2.capacity(), 5u);
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}
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TEST(MemoryBufferTest, Grow) {
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typedef allocator_ref<mock_allocator<int>> Allocator;
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mock_allocator<int> alloc;
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basic_memory_buffer<int, 10, Allocator> buffer((Allocator(&alloc)));
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buffer.resize(7);
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using fmt::detail::to_unsigned;
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for (int i = 0; i < 7; ++i) buffer[to_unsigned(i)] = i * i;
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EXPECT_EQ(10u, buffer.capacity());
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int mem[20];
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mem[7] = 0xdead;
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EXPECT_CALL(alloc, allocate(20)).WillOnce(Return(mem));
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buffer.try_reserve(20);
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EXPECT_EQ(20u, buffer.capacity());
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// Check if size elements have been copied
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for (int i = 0; i < 7; ++i) EXPECT_EQ(i * i, buffer[to_unsigned(i)]);
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// and no more than that.
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EXPECT_EQ(0xdead, buffer[7]);
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EXPECT_CALL(alloc, deallocate(mem, 20));
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}
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TEST(MemoryBufferTest, Allocator) {
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typedef allocator_ref<mock_allocator<char>> TestAllocator;
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basic_memory_buffer<char, 10, TestAllocator> buffer;
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EXPECT_EQ(nullptr, buffer.get_allocator().get());
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StrictMock<mock_allocator<char>> alloc;
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char mem;
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{
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basic_memory_buffer<char, 10, TestAllocator> buffer2(
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(TestAllocator(&alloc)));
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EXPECT_EQ(&alloc, buffer2.get_allocator().get());
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size_t size = 2 * fmt::inline_buffer_size;
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EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem));
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buffer2.reserve(size);
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EXPECT_CALL(alloc, deallocate(&mem, size));
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}
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}
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TEST(MemoryBufferTest, ExceptionInDeallocate) {
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typedef allocator_ref<mock_allocator<char>> TestAllocator;
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StrictMock<mock_allocator<char>> alloc;
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basic_memory_buffer<char, 10, TestAllocator> buffer((TestAllocator(&alloc)));
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size_t size = 2 * fmt::inline_buffer_size;
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std::vector<char> mem(size);
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{
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EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem[0]));
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buffer.resize(size);
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std::fill(&buffer[0], &buffer[0] + size, 'x');
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}
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std::vector<char> mem2(2 * size);
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{
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EXPECT_CALL(alloc, allocate(2 * size)).WillOnce(Return(&mem2[0]));
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std::exception e;
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EXPECT_CALL(alloc, deallocate(&mem[0], size)).WillOnce(testing::Throw(e));
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EXPECT_THROW(buffer.reserve(2 * size), std::exception);
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EXPECT_EQ(&mem2[0], &buffer[0]);
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// Check that the data has been copied.
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for (size_t i = 0; i < size; ++i) EXPECT_EQ('x', buffer[i]);
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}
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EXPECT_CALL(alloc, deallocate(&mem2[0], 2 * size));
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}
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template <typename Allocator, size_t MaxSize>
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class allocator_max_size : public Allocator {
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public:
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using typename Allocator::value_type;
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size_t max_size() const FMT_NOEXCEPT { return MaxSize; }
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value_type* allocate(size_t n) {
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if (n > max_size()) {
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throw std::length_error("size > max_size");
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}
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return std::allocator_traits<Allocator>::allocate(
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*static_cast<Allocator*>(this), n);
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}
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void deallocate(value_type* p, size_t n) {
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std::allocator_traits<Allocator>::deallocate(*static_cast<Allocator*>(this),
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p, n);
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}
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};
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TEST(MemoryBufferTest, AllocatorMaxSize) {
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// 160 = 128 + 32
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using TestAllocator = allocator_max_size<std::allocator<char>, 160>;
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basic_memory_buffer<char, 10, TestAllocator> buffer;
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buffer.resize(128);
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bool throws_on_resize = false;
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try {
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// new_capacity = 128 + 128/2 = 192 > 160
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buffer.resize(160);
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} catch (const std::exception&) {
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throws_on_resize = true;
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}
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EXPECT_FALSE(throws_on_resize);
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}
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TEST(MemoryBufferTest, AllocatorMaxSizeOverflow) {
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using TestAllocator = allocator_max_size<std::allocator<char>, 160>;
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basic_memory_buffer<char, 10, TestAllocator> buffer;
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bool throws_on_resize = false;
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try {
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buffer.resize(161);
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} catch (const std::exception&) {
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throws_on_resize = true;
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}
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EXPECT_TRUE(throws_on_resize);
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}
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TEST(UtilTest, UTF8ToUTF16) {
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fmt::detail::utf8_to_utf16 u("лошадка");
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EXPECT_EQ(L"\x043B\x043E\x0448\x0430\x0434\x043A\x0430", u.str());
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EXPECT_EQ(7, u.size());
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// U+10437 { DESERET SMALL LETTER YEE }
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EXPECT_EQ(L"\xD801\xDC37", fmt::detail::utf8_to_utf16("𐐷").str());
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EXPECT_THROW_MSG(fmt::detail::utf8_to_utf16("\xc3\x28"), std::runtime_error,
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"invalid utf8");
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EXPECT_THROW_MSG(fmt::detail::utf8_to_utf16(fmt::string_view("л", 1)),
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std::runtime_error, "invalid utf8");
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EXPECT_EQ(L"123456", fmt::detail::utf8_to_utf16("123456").str());
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}
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TEST(UtilTest, UTF8ToUTF16EmptyString) {
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std::string s = "";
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fmt::detail::utf8_to_utf16 u(s.c_str());
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EXPECT_EQ(L"", u.str());
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EXPECT_EQ(s.size(), u.size());
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}
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TEST(UtilTest, FormatSystemError) {
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fmt::memory_buffer message;
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fmt::format_system_error(message, EDOM, "test");
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EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)),
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to_string(message));
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message = fmt::memory_buffer();
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// Check if std::allocator throws on allocating max size_t / 2 chars.
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size_t max_size = max_value<size_t>() / 2;
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bool throws_on_alloc = false;
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try {
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std::allocator<char> alloc;
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alloc.deallocate(alloc.allocate(max_size), max_size);
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} catch (const std::bad_alloc&) {
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throws_on_alloc = true;
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}
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if (!throws_on_alloc) {
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fmt::print("warning: std::allocator allocates {} chars", max_size);
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return;
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}
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fmt::format_system_error(message, EDOM, fmt::string_view(nullptr, max_size));
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EXPECT_EQ(fmt::format("error {}", EDOM), to_string(message));
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}
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TEST(UtilTest, SystemError) {
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fmt::system_error test_error(EDOM, "test");
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EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)), test_error.what());
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EXPECT_EQ(EDOM, test_error.error_code());
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fmt::system_error error(0, "");
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try {
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throw fmt::system_error(EDOM, "test {}", "error");
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} catch (const fmt::system_error& e) {
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error = e;
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}
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fmt::memory_buffer message;
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fmt::format_system_error(message, EDOM, "test error");
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EXPECT_EQ(to_string(message), error.what());
|
|
EXPECT_EQ(EDOM, error.error_code());
|
|
}
|
|
|
|
TEST(UtilTest, ReportSystemError) {
|
|
fmt::memory_buffer out;
|
|
fmt::format_system_error(out, EDOM, "test error");
|
|
out.push_back('\n');
|
|
EXPECT_WRITE(stderr, fmt::report_system_error(EDOM, "test error"),
|
|
to_string(out));
|
|
}
|
|
|
|
TEST(StringViewTest, Ctor) {
|
|
EXPECT_STREQ("abc", string_view("abc").data());
|
|
EXPECT_EQ(3u, string_view("abc").size());
|
|
|
|
EXPECT_STREQ("defg", string_view(std::string("defg")).data());
|
|
EXPECT_EQ(4u, string_view(std::string("defg")).size());
|
|
}
|
|
|
|
TEST(FormatToTest, FormatWithoutArgs) {
|
|
std::string s;
|
|
fmt::format_to(std::back_inserter(s), "test");
|
|
EXPECT_EQ("test", s);
|
|
}
|
|
|
|
TEST(FormatToTest, Format) {
|
|
std::string s;
|
|
fmt::format_to(std::back_inserter(s), "part{0}", 1);
|
|
EXPECT_EQ("part1", s);
|
|
fmt::format_to(std::back_inserter(s), "part{0}", 2);
|
|
EXPECT_EQ("part1part2", s);
|
|
}
|
|
|
|
TEST(FormatToTest, WideString) {
|
|
std::vector<wchar_t> buf;
|
|
fmt::format_to(std::back_inserter(buf), L"{}{}", 42, L'\0');
|
|
EXPECT_STREQ(buf.data(), L"42");
|
|
}
|
|
|
|
TEST(FormatToTest, FormatToMemoryBuffer) {
|
|
fmt::basic_memory_buffer<char, 100> buffer;
|
|
fmt::format_to(buffer, "{}", "foo");
|
|
EXPECT_EQ("foo", to_string(buffer));
|
|
fmt::wmemory_buffer wbuffer;
|
|
fmt::format_to(wbuffer, L"{}", L"foo");
|
|
EXPECT_EQ(L"foo", to_string(wbuffer));
|
|
}
|
|
|
|
TEST(FormatterTest, Escape) {
|
|
EXPECT_EQ("{", format("{{"));
|
|
EXPECT_EQ("before {", format("before {{"));
|
|
EXPECT_EQ("{ after", format("{{ after"));
|
|
EXPECT_EQ("before { after", format("before {{ after"));
|
|
|
|
EXPECT_EQ("}", format("}}"));
|
|
EXPECT_EQ("before }", format("before }}"));
|
|
EXPECT_EQ("} after", format("}} after"));
|
|
EXPECT_EQ("before } after", format("before }} after"));
|
|
|
|
EXPECT_EQ("{}", format("{{}}"));
|
|
EXPECT_EQ("{42}", format("{{{0}}}", 42));
|
|
}
|
|
|
|
TEST(FormatterTest, UnmatchedBraces) {
|
|
EXPECT_THROW_MSG(format(+"{"), format_error, "invalid format string");
|
|
EXPECT_THROW_MSG(format(+"}"), format_error,
|
|
"unmatched '}' in format string");
|
|
EXPECT_THROW_MSG(format(+"{0{}"), format_error, "invalid format string");
|
|
}
|
|
|
|
TEST(FormatterTest, NoArgs) { EXPECT_EQ("test", format("test")); }
|
|
|
|
TEST(FormatterTest, ArgsInDifferentPositions) {
|
|
EXPECT_EQ("42", format("{0}", 42));
|
|
EXPECT_EQ("before 42", format("before {0}", 42));
|
|
EXPECT_EQ("42 after", format("{0} after", 42));
|
|
EXPECT_EQ("before 42 after", format("before {0} after", 42));
|
|
EXPECT_EQ("answer = 42", format("{0} = {1}", "answer", 42));
|
|
EXPECT_EQ("42 is the answer", format("{1} is the {0}", "answer", 42));
|
|
EXPECT_EQ("abracadabra", format("{0}{1}{0}", "abra", "cad"));
|
|
}
|
|
|
|
TEST(FormatterTest, ArgErrors) {
|
|
EXPECT_THROW_MSG(format(+"{"), format_error, "invalid format string");
|
|
EXPECT_THROW_MSG(format(+"{?}"), format_error, "invalid format string");
|
|
EXPECT_THROW_MSG(format(+"{0"), format_error, "invalid format string");
|
|
EXPECT_THROW_MSG(format(+"{0}"), format_error, "argument not found");
|
|
EXPECT_THROW_MSG(format(+"{00}", 42), format_error, "invalid format string");
|
|
|
|
char format_str[BUFFER_SIZE];
|
|
safe_sprintf(format_str, "{%u", INT_MAX);
|
|
EXPECT_THROW_MSG(format(+format_str), format_error, "invalid format string");
|
|
safe_sprintf(format_str, "{%u}", INT_MAX);
|
|
EXPECT_THROW_MSG(format(+format_str), format_error, "argument not found");
|
|
|
|
safe_sprintf(format_str, "{%u", INT_MAX + 1u);
|
|
EXPECT_THROW_MSG(format(+format_str), format_error, "number is too big");
|
|
safe_sprintf(format_str, "{%u}", INT_MAX + 1u);
|
|
EXPECT_THROW_MSG(format(+format_str), format_error, "number is too big");
|
|
}
|
|
|
|
template <int N> struct TestFormat {
|
|
template <typename... Args>
|
|
static std::string format(fmt::string_view format_str, const Args&... args) {
|
|
return TestFormat<N - 1>::format(format_str, N - 1, args...);
|
|
}
|
|
};
|
|
|
|
template <> struct TestFormat<0> {
|
|
template <typename... Args>
|
|
static std::string format(fmt::string_view format_str, const Args&... args) {
|
|
return fmt::format(format_str, args...);
|
|
}
|
|
};
|
|
|
|
TEST(FormatterTest, ManyArgs) {
|
|
EXPECT_EQ("19", TestFormat<20>::format("{19}"));
|
|
EXPECT_THROW_MSG(TestFormat<20>::format("{20}"), format_error,
|
|
"argument not found");
|
|
EXPECT_THROW_MSG(TestFormat<21>::format("{21}"), format_error,
|
|
"argument not found");
|
|
enum { max_packed_args = fmt::detail::max_packed_args };
|
|
std::string format_str = fmt::format("{{{}}}", max_packed_args + 1);
|
|
EXPECT_THROW_MSG(TestFormat<max_packed_args>::format(format_str),
|
|
format_error, "argument not found");
|
|
}
|
|
|
|
TEST(FormatterTest, NamedArg) {
|
|
EXPECT_EQ("1/a/A", format("{_1}/{a_}/{A_}", fmt::arg("a_", 'a'),
|
|
fmt::arg("A_", "A"), fmt::arg("_1", 1)));
|
|
EXPECT_EQ(" -42", format("{0:{width}}", -42, fmt::arg("width", 4)));
|
|
EXPECT_EQ("st", format("{0:.{precision}}", "str", fmt::arg("precision", 2)));
|
|
EXPECT_EQ("1 2", format("{} {two}", 1, fmt::arg("two", 2)));
|
|
EXPECT_EQ("42", format("{c}", fmt::arg("a", 0), fmt::arg("b", 0),
|
|
fmt::arg("c", 42), fmt::arg("d", 0), fmt::arg("e", 0),
|
|
fmt::arg("f", 0), fmt::arg("g", 0), fmt::arg("h", 0),
|
|
fmt::arg("i", 0), fmt::arg("j", 0), fmt::arg("k", 0),
|
|
fmt::arg("l", 0), fmt::arg("m", 0), fmt::arg("n", 0),
|
|
fmt::arg("o", 0), fmt::arg("p", 0)));
|
|
EXPECT_THROW_MSG(format(+"{a}"), format_error, "argument not found");
|
|
EXPECT_THROW_MSG(format(+"{a}", 42), format_error, "argument not found");
|
|
}
|
|
|
|
TEST(FormatterTest, AutoArgIndex) {
|
|
EXPECT_EQ("abc", format("{}{}{}", 'a', 'b', 'c'));
|
|
EXPECT_THROW_MSG(format(+"{0}{}", 'a', 'b'), format_error,
|
|
"cannot switch from manual to automatic argument indexing");
|
|
EXPECT_THROW_MSG(format(+"{}{0}", 'a', 'b'), format_error,
|
|
"cannot switch from automatic to manual argument indexing");
|
|
EXPECT_EQ("1.2", format("{:.{}}", 1.2345, 2));
|
|
EXPECT_THROW_MSG(format(+"{0}:.{}", 1.2345, 2), format_error,
|
|
"cannot switch from manual to automatic argument indexing");
|
|
EXPECT_THROW_MSG(format(+"{:.{0}}", 1.2345, 2), format_error,
|
|
"cannot switch from automatic to manual argument indexing");
|
|
EXPECT_THROW_MSG(format(+"{}"), format_error, "argument not found");
|
|
}
|
|
|
|
TEST(FormatterTest, EmptySpecs) { EXPECT_EQ("42", format("{0:}", 42)); }
|
|
|
|
TEST(FormatterTest, LeftAlign) {
|
|
EXPECT_EQ("42 ", format("{0:<4}", 42));
|
|
EXPECT_EQ("42 ", format("{0:<4o}", 042));
|
|
EXPECT_EQ("42 ", format("{0:<4x}", 0x42));
|
|
EXPECT_EQ("-42 ", format("{0:<5}", -42));
|
|
EXPECT_EQ("42 ", format("{0:<5}", 42u));
|
|
EXPECT_EQ("-42 ", format("{0:<5}", -42l));
|
|
EXPECT_EQ("42 ", format("{0:<5}", 42ul));
|
|
EXPECT_EQ("-42 ", format("{0:<5}", -42ll));
|
|
EXPECT_EQ("42 ", format("{0:<5}", 42ull));
|
|
EXPECT_EQ("-42 ", format("{0:<5}", -42.0));
|
|
EXPECT_EQ("-42 ", format("{0:<5}", -42.0l));
|
|
EXPECT_EQ("c ", format("{0:<5}", 'c'));
|
|
EXPECT_EQ("abc ", format("{0:<5}", "abc"));
|
|
EXPECT_EQ("0xface ", format("{0:<8}", reinterpret_cast<void*>(0xface)));
|
|
}
|
|
|
|
TEST(FormatterTest, RightAlign) {
|
|
EXPECT_EQ(" 42", format("{0:>4}", 42));
|
|
EXPECT_EQ(" 42", format("{0:>4o}", 042));
|
|
EXPECT_EQ(" 42", format("{0:>4x}", 0x42));
|
|
EXPECT_EQ(" -42", format("{0:>5}", -42));
|
|
EXPECT_EQ(" 42", format("{0:>5}", 42u));
|
|
EXPECT_EQ(" -42", format("{0:>5}", -42l));
|
|
EXPECT_EQ(" 42", format("{0:>5}", 42ul));
|
|
EXPECT_EQ(" -42", format("{0:>5}", -42ll));
|
|
EXPECT_EQ(" 42", format("{0:>5}", 42ull));
|
|
EXPECT_EQ(" -42", format("{0:>5}", -42.0));
|
|
EXPECT_EQ(" -42", format("{0:>5}", -42.0l));
|
|
EXPECT_EQ(" c", format("{0:>5}", 'c'));
|
|
EXPECT_EQ(" abc", format("{0:>5}", "abc"));
|
|
EXPECT_EQ(" 0xface", format("{0:>8}", reinterpret_cast<void*>(0xface)));
|
|
}
|
|
|
|
#if FMT_DEPRECATED_NUMERIC_ALIGN
|
|
TEST(FormatterTest, NumericAlign) { EXPECT_EQ("0042", format("{0:=4}", 42)); }
|
|
#endif
|
|
|
|
TEST(FormatterTest, CenterAlign) {
|
|
EXPECT_EQ(" 42 ", format("{0:^5}", 42));
|
|
EXPECT_EQ(" 42 ", format("{0:^5o}", 042));
|
|
EXPECT_EQ(" 42 ", format("{0:^5x}", 0x42));
|
|
EXPECT_EQ(" -42 ", format("{0:^5}", -42));
|
|
EXPECT_EQ(" 42 ", format("{0:^5}", 42u));
|
|
EXPECT_EQ(" -42 ", format("{0:^5}", -42l));
|
|
EXPECT_EQ(" 42 ", format("{0:^5}", 42ul));
|
|
EXPECT_EQ(" -42 ", format("{0:^5}", -42ll));
|
|
EXPECT_EQ(" 42 ", format("{0:^5}", 42ull));
|
|
EXPECT_EQ(" -42 ", format("{0:^5}", -42.0));
|
|
EXPECT_EQ(" -42 ", format("{0:^5}", -42.0l));
|
|
EXPECT_EQ(" c ", format("{0:^5}", 'c'));
|
|
EXPECT_EQ(" abc ", format("{0:^6}", "abc"));
|
|
EXPECT_EQ(" 0xface ", format("{0:^8}", reinterpret_cast<void*>(0xface)));
|
|
}
|
|
|
|
TEST(FormatterTest, Fill) {
|
|
EXPECT_THROW_MSG(format(+"{0:{<5}", 'c'), format_error,
|
|
"invalid fill character '{'");
|
|
EXPECT_THROW_MSG(format(+"{0:{<5}}", 'c'), format_error,
|
|
"invalid fill character '{'");
|
|
EXPECT_EQ("**42", format("{0:*>4}", 42));
|
|
EXPECT_EQ("**-42", format("{0:*>5}", -42));
|
|
EXPECT_EQ("***42", format("{0:*>5}", 42u));
|
|
EXPECT_EQ("**-42", format("{0:*>5}", -42l));
|
|
EXPECT_EQ("***42", format("{0:*>5}", 42ul));
|
|
EXPECT_EQ("**-42", format("{0:*>5}", -42ll));
|
|
EXPECT_EQ("***42", format("{0:*>5}", 42ull));
|
|
EXPECT_EQ("**-42", format("{0:*>5}", -42.0));
|
|
EXPECT_EQ("**-42", format("{0:*>5}", -42.0l));
|
|
EXPECT_EQ("c****", format("{0:*<5}", 'c'));
|
|
EXPECT_EQ("abc**", format("{0:*<5}", "abc"));
|
|
EXPECT_EQ("**0xface", format("{0:*>8}", reinterpret_cast<void*>(0xface)));
|
|
EXPECT_EQ("foo=", format("{:}=", "foo"));
|
|
EXPECT_EQ(std::string("\0\0\0*", 4), format(string_view("{:\0>4}", 6), '*'));
|
|
EXPECT_EQ("жж42", format("{0:ж>4}", 42));
|
|
EXPECT_THROW_MSG(format(+"{:\x80\x80\x80\x80\x80>}", 0), format_error,
|
|
"missing '}' in format string");
|
|
}
|
|
|
|
TEST(FormatterTest, PlusSign) {
|
|
EXPECT_EQ("+42", format("{0:+}", 42));
|
|
EXPECT_EQ("-42", format("{0:+}", -42));
|
|
EXPECT_EQ("+42", format("{0:+}", 42));
|
|
EXPECT_THROW_MSG(format(+"{0:+}", 42u), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ("+42", format("{0:+}", 42l));
|
|
EXPECT_THROW_MSG(format(+"{0:+}", 42ul), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ("+42", format("{0:+}", 42ll));
|
|
EXPECT_THROW_MSG(format(+"{0:+}", 42ull), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ("+42", format("{0:+}", 42.0));
|
|
EXPECT_EQ("+42", format("{0:+}", 42.0l));
|
|
EXPECT_THROW_MSG(format(+"{0:+", 'c'), format_error,
|
|
"missing '}' in format string");
|
|
EXPECT_THROW_MSG(format(+"{0:+}", 'c'), format_error,
|
|
"invalid format specifier for char");
|
|
EXPECT_THROW_MSG(format(+"{0:+}", "abc"), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{0:+}", reinterpret_cast<void*>(0x42)),
|
|
format_error, "format specifier requires numeric argument");
|
|
}
|
|
|
|
TEST(FormatterTest, MinusSign) {
|
|
EXPECT_EQ("42", format("{0:-}", 42));
|
|
EXPECT_EQ("-42", format("{0:-}", -42));
|
|
EXPECT_EQ("42", format("{0:-}", 42));
|
|
EXPECT_THROW_MSG(format(+"{0:-}", 42u), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ("42", format("{0:-}", 42l));
|
|
EXPECT_THROW_MSG(format(+"{0:-}", 42ul), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ("42", format("{0:-}", 42ll));
|
|
EXPECT_THROW_MSG(format(+"{0:-}", 42ull), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ("42", format("{0:-}", 42.0));
|
|
EXPECT_EQ("42", format("{0:-}", 42.0l));
|
|
EXPECT_THROW_MSG(format(+"{0:-", 'c'), format_error,
|
|
"missing '}' in format string");
|
|
EXPECT_THROW_MSG(format(+"{0:-}", 'c'), format_error,
|
|
"invalid format specifier for char");
|
|
EXPECT_THROW_MSG(format(+"{0:-}", "abc"), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{0:-}", reinterpret_cast<void*>(0x42)),
|
|
format_error, "format specifier requires numeric argument");
|
|
}
|
|
|
|
TEST(FormatterTest, SpaceSign) {
|
|
EXPECT_EQ(" 42", format("{0: }", 42));
|
|
EXPECT_EQ("-42", format("{0: }", -42));
|
|
EXPECT_EQ(" 42", format("{0: }", 42));
|
|
EXPECT_THROW_MSG(format(+"{0: }", 42u), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ(" 42", format("{0: }", 42l));
|
|
EXPECT_THROW_MSG(format(+"{0: }", 42ul), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ(" 42", format("{0: }", 42ll));
|
|
EXPECT_THROW_MSG(format(+"{0: }", 42ull), format_error,
|
|
"format specifier requires signed argument");
|
|
EXPECT_EQ(" 42", format("{0: }", 42.0));
|
|
EXPECT_EQ(" 42", format("{0: }", 42.0l));
|
|
EXPECT_THROW_MSG(format(+"{0: ", 'c'), format_error,
|
|
"missing '}' in format string");
|
|
EXPECT_THROW_MSG(format(+"{0: }", 'c'), format_error,
|
|
"invalid format specifier for char");
|
|
EXPECT_THROW_MSG(format(+"{0: }", "abc"), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{0: }", reinterpret_cast<void*>(0x42)),
|
|
format_error, "format specifier requires numeric argument");
|
|
}
|
|
|
|
TEST(FormatterTest, SignNotTruncated) {
|
|
wchar_t format_str[] = {L'{', L':',
|
|
'+' | (1 << fmt::detail::num_bits<char>()), L'}', 0};
|
|
EXPECT_THROW(format(format_str, 42), format_error);
|
|
}
|
|
|
|
TEST(FormatterTest, HashFlag) {
|
|
EXPECT_EQ("42", format("{0:#}", 42));
|
|
EXPECT_EQ("-42", format("{0:#}", -42));
|
|
EXPECT_EQ("0b101010", format("{0:#b}", 42));
|
|
EXPECT_EQ("0B101010", format("{0:#B}", 42));
|
|
EXPECT_EQ("-0b101010", format("{0:#b}", -42));
|
|
EXPECT_EQ("0x42", format("{0:#x}", 0x42));
|
|
EXPECT_EQ("0X42", format("{0:#X}", 0x42));
|
|
EXPECT_EQ("-0x42", format("{0:#x}", -0x42));
|
|
EXPECT_EQ("0", format("{0:#o}", 0));
|
|
EXPECT_EQ("042", format("{0:#o}", 042));
|
|
EXPECT_EQ("-042", format("{0:#o}", -042));
|
|
EXPECT_EQ("42", format("{0:#}", 42u));
|
|
EXPECT_EQ("0x42", format("{0:#x}", 0x42u));
|
|
EXPECT_EQ("042", format("{0:#o}", 042u));
|
|
|
|
EXPECT_EQ("-42", format("{0:#}", -42l));
|
|
EXPECT_EQ("0x42", format("{0:#x}", 0x42l));
|
|
EXPECT_EQ("-0x42", format("{0:#x}", -0x42l));
|
|
EXPECT_EQ("042", format("{0:#o}", 042l));
|
|
EXPECT_EQ("-042", format("{0:#o}", -042l));
|
|
EXPECT_EQ("42", format("{0:#}", 42ul));
|
|
EXPECT_EQ("0x42", format("{0:#x}", 0x42ul));
|
|
EXPECT_EQ("042", format("{0:#o}", 042ul));
|
|
|
|
EXPECT_EQ("-42", format("{0:#}", -42ll));
|
|
EXPECT_EQ("0x42", format("{0:#x}", 0x42ll));
|
|
EXPECT_EQ("-0x42", format("{0:#x}", -0x42ll));
|
|
EXPECT_EQ("042", format("{0:#o}", 042ll));
|
|
EXPECT_EQ("-042", format("{0:#o}", -042ll));
|
|
EXPECT_EQ("42", format("{0:#}", 42ull));
|
|
EXPECT_EQ("0x42", format("{0:#x}", 0x42ull));
|
|
EXPECT_EQ("042", format("{0:#o}", 042ull));
|
|
|
|
EXPECT_EQ("-42.0", format("{0:#}", -42.0));
|
|
EXPECT_EQ("-42.0", format("{0:#}", -42.0l));
|
|
EXPECT_EQ("4.e+01", format("{:#.0e}", 42.0));
|
|
EXPECT_EQ("0.", format("{:#.0f}", 0.01));
|
|
EXPECT_EQ("0.50", format("{:#.2g}", 0.5));
|
|
EXPECT_EQ("0.", format("{:#.0f}", 0.5));
|
|
EXPECT_THROW_MSG(format(+"{0:#", 'c'), format_error,
|
|
"missing '}' in format string");
|
|
EXPECT_THROW_MSG(format(+"{0:#}", 'c'), format_error,
|
|
"invalid format specifier for char");
|
|
EXPECT_THROW_MSG(format(+"{0:#}", "abc"), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{0:#}", reinterpret_cast<void*>(0x42)),
|
|
format_error, "format specifier requires numeric argument");
|
|
}
|
|
|
|
TEST(FormatterTest, ZeroFlag) {
|
|
EXPECT_EQ("42", format("{0:0}", 42));
|
|
EXPECT_EQ("-0042", format("{0:05}", -42));
|
|
EXPECT_EQ("00042", format("{0:05}", 42u));
|
|
EXPECT_EQ("-0042", format("{0:05}", -42l));
|
|
EXPECT_EQ("00042", format("{0:05}", 42ul));
|
|
EXPECT_EQ("-0042", format("{0:05}", -42ll));
|
|
EXPECT_EQ("00042", format("{0:05}", 42ull));
|
|
EXPECT_EQ("-000042", format("{0:07}", -42.0));
|
|
EXPECT_EQ("-000042", format("{0:07}", -42.0l));
|
|
EXPECT_THROW_MSG(format(+"{0:0", 'c'), format_error,
|
|
"missing '}' in format string");
|
|
EXPECT_THROW_MSG(format(+"{0:05}", 'c'), format_error,
|
|
"invalid format specifier for char");
|
|
EXPECT_THROW_MSG(format(+"{0:05}", "abc"), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{0:05}", reinterpret_cast<void*>(0x42)),
|
|
format_error, "format specifier requires numeric argument");
|
|
}
|
|
|
|
TEST(FormatterTest, Width) {
|
|
char format_str[BUFFER_SIZE];
|
|
safe_sprintf(format_str, "{0:%u", UINT_MAX);
|
|
increment(format_str + 3);
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
size_t size = std::strlen(format_str);
|
|
format_str[size] = '}';
|
|
format_str[size + 1] = 0;
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
|
|
safe_sprintf(format_str, "{0:%u", INT_MAX + 1u);
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
safe_sprintf(format_str, "{0:%u}", INT_MAX + 1u);
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
EXPECT_EQ(" -42", format("{0:4}", -42));
|
|
EXPECT_EQ(" 42", format("{0:5}", 42u));
|
|
EXPECT_EQ(" -42", format("{0:6}", -42l));
|
|
EXPECT_EQ(" 42", format("{0:7}", 42ul));
|
|
EXPECT_EQ(" -42", format("{0:6}", -42ll));
|
|
EXPECT_EQ(" 42", format("{0:7}", 42ull));
|
|
EXPECT_EQ(" -1.23", format("{0:8}", -1.23));
|
|
EXPECT_EQ(" -1.23", format("{0:9}", -1.23l));
|
|
EXPECT_EQ(" 0xcafe", format("{0:10}", reinterpret_cast<void*>(0xcafe)));
|
|
EXPECT_EQ("x ", format("{0:11}", 'x'));
|
|
EXPECT_EQ("str ", format("{0:12}", "str"));
|
|
EXPECT_EQ(format("{:*^6}", "🤡"), "**🤡**");
|
|
EXPECT_EQ(format("{:*^8}", "你好"), "**你好**");
|
|
EXPECT_EQ(format("{:#6}", 42.0), " 42.0");
|
|
EXPECT_EQ(format("{:6c}", static_cast<int>('x')), "x ");
|
|
EXPECT_EQ(format("{:>06.0f}", 0.00884311), "000000");
|
|
}
|
|
|
|
template <typename T> inline T const_check(T value) { return value; }
|
|
|
|
TEST(FormatterTest, RuntimeWidth) {
|
|
char format_str[BUFFER_SIZE];
|
|
safe_sprintf(format_str, "{0:{%u", UINT_MAX);
|
|
increment(format_str + 4);
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
size_t size = std::strlen(format_str);
|
|
format_str[size] = '}';
|
|
format_str[size + 1] = 0;
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
format_str[size + 1] = '}';
|
|
format_str[size + 2] = 0;
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:{", 0), format_error, "invalid format string");
|
|
EXPECT_THROW_MSG(format(+"{0:{}", 0), format_error,
|
|
"cannot switch from manual to automatic argument indexing");
|
|
EXPECT_THROW_MSG(format(+"{0:{?}}", 0), format_error,
|
|
"invalid format string");
|
|
EXPECT_THROW_MSG(format(+"{0:{1}}", 0), format_error, "argument not found");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:{0:}}", 0), format_error,
|
|
"invalid format string");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:{1}}", 0, -1), format_error, "negative width");
|
|
EXPECT_THROW_MSG(format(+"{0:{1}}", 0, (INT_MAX + 1u)), format_error,
|
|
"number is too big");
|
|
EXPECT_THROW_MSG(format(+"{0:{1}}", 0, -1l), format_error, "negative width");
|
|
if (const_check(sizeof(long) > sizeof(int))) {
|
|
long value = INT_MAX;
|
|
EXPECT_THROW_MSG(format(+"{0:{1}}", 0, (value + 1)), format_error,
|
|
"number is too big");
|
|
}
|
|
EXPECT_THROW_MSG(format(+"{0:{1}}", 0, (INT_MAX + 1ul)), format_error,
|
|
"number is too big");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:{1}}", 0, '0'), format_error,
|
|
"width is not integer");
|
|
EXPECT_THROW_MSG(format(+"{0:{1}}", 0, 0.0), format_error,
|
|
"width is not integer");
|
|
|
|
EXPECT_EQ(" -42", format("{0:{1}}", -42, 4));
|
|
EXPECT_EQ(" 42", format("{0:{1}}", 42u, 5));
|
|
EXPECT_EQ(" -42", format("{0:{1}}", -42l, 6));
|
|
EXPECT_EQ(" 42", format("{0:{1}}", 42ul, 7));
|
|
EXPECT_EQ(" -42", format("{0:{1}}", -42ll, 6));
|
|
EXPECT_EQ(" 42", format("{0:{1}}", 42ull, 7));
|
|
EXPECT_EQ(" -1.23", format("{0:{1}}", -1.23, 8));
|
|
EXPECT_EQ(" -1.23", format("{0:{1}}", -1.23l, 9));
|
|
EXPECT_EQ(" 0xcafe",
|
|
format("{0:{1}}", reinterpret_cast<void*>(0xcafe), 10));
|
|
EXPECT_EQ("x ", format("{0:{1}}", 'x', 11));
|
|
EXPECT_EQ("str ", format("{0:{1}}", "str", 12));
|
|
}
|
|
|
|
TEST(FormatterTest, Precision) {
|
|
char format_str[BUFFER_SIZE];
|
|
safe_sprintf(format_str, "{0:.%u", UINT_MAX);
|
|
increment(format_str + 4);
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
size_t size = std::strlen(format_str);
|
|
format_str[size] = '}';
|
|
format_str[size + 1] = 0;
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
|
|
safe_sprintf(format_str, "{0:.%u", INT_MAX + 1u);
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
safe_sprintf(format_str, "{0:.%u}", INT_MAX + 1u);
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.", 0), format_error,
|
|
"missing precision specifier");
|
|
EXPECT_THROW_MSG(format(+"{0:.}", 0), format_error,
|
|
"missing precision specifier");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.2", 0), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2}", 42), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2f}", 42), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2}", 42u), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2f}", 42u), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2}", 42l), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2f}", 42l), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2}", 42ul), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2f}", 42ul), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2}", 42ll), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2f}", 42ll), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2}", 42ull), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2f}", 42ull), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:3.0}", 'x'), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_EQ("1.2", format("{0:.2}", 1.2345));
|
|
EXPECT_EQ("1.2", format("{0:.2}", 1.2345l));
|
|
EXPECT_EQ("1.2e+56", format("{:.2}", 1.234e56));
|
|
EXPECT_EQ("1.1", format("{0:.3}", 1.1));
|
|
EXPECT_EQ("1e+00", format("{:.0e}", 1.0L));
|
|
EXPECT_EQ(" 0.0e+00", format("{:9.1e}", 0.0));
|
|
EXPECT_EQ(
|
|
"4.9406564584124654417656879286822137236505980261432476442558568250067550"
|
|
"727020875186529983636163599237979656469544571773092665671035593979639877"
|
|
"479601078187812630071319031140452784581716784898210368871863605699873072"
|
|
"305000638740915356498438731247339727316961514003171538539807412623856559"
|
|
"117102665855668676818703956031062493194527159149245532930545654440112748"
|
|
"012970999954193198940908041656332452475714786901472678015935523861155013"
|
|
"480352649347201937902681071074917033322268447533357208324319361e-324",
|
|
format("{:.494}", 4.9406564584124654E-324));
|
|
|
|
std::string outputs[] = {
|
|
"-0X1.41FE3FFE71C9E000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000P+127",
|
|
"-0XA.0FF1FFF38E4F0000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000000000000000000000000"
|
|
"000000000000000000000000000000000000000000000000000P+124"};
|
|
EXPECT_THAT(outputs, Contains(format("{:.838A}", -2.14001164E+38)));
|
|
|
|
EXPECT_EQ("123.", format("{:#.0f}", 123.0));
|
|
EXPECT_EQ("1.23", format("{:.02f}", 1.234));
|
|
EXPECT_EQ("0.001", format("{:.1g}", 0.001));
|
|
EXPECT_EQ("1019666400", format("{}", 1019666432.0f));
|
|
EXPECT_EQ("1e+01", format("{:.0e}", 9.5));
|
|
EXPECT_EQ("1.0e-34", fmt::format("{:.1e}", 1e-34));
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.2}", reinterpret_cast<void*>(0xcafe)),
|
|
format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.2f}", reinterpret_cast<void*>(0xcafe)),
|
|
format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{:.{}e}", 42.0, fmt::detail::max_value<int>()),
|
|
format_error, "number is too big");
|
|
|
|
EXPECT_EQ("st", format("{0:.2}", "str"));
|
|
}
|
|
|
|
TEST(FormatterTest, RuntimePrecision) {
|
|
char format_str[BUFFER_SIZE];
|
|
safe_sprintf(format_str, "{0:.{%u", UINT_MAX);
|
|
increment(format_str + 5);
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
size_t size = std::strlen(format_str);
|
|
format_str[size] = '}';
|
|
format_str[size + 1] = 0;
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
format_str[size + 1] = '}';
|
|
format_str[size + 2] = 0;
|
|
EXPECT_THROW_MSG(format(+format_str, 0), format_error, "number is too big");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.{", 0), format_error, "invalid format string");
|
|
EXPECT_THROW_MSG(format(+"{0:.{}", 0), format_error,
|
|
"cannot switch from manual to automatic argument indexing");
|
|
EXPECT_THROW_MSG(format(+"{0:.{?}}", 0), format_error,
|
|
"invalid format string");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}", 0, 0), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 0), format_error, "argument not found");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.{0:}}", 0), format_error,
|
|
"invalid format string");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 0, -1), format_error,
|
|
"negative precision");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 0, (INT_MAX + 1u)), format_error,
|
|
"number is too big");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 0, -1l), format_error,
|
|
"negative precision");
|
|
if (const_check(sizeof(long) > sizeof(int))) {
|
|
long value = INT_MAX;
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 0, (value + 1)), format_error,
|
|
"number is too big");
|
|
}
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 0, (INT_MAX + 1ul)), format_error,
|
|
"number is too big");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 0, '0'), format_error,
|
|
"precision is not integer");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 0, 0.0), format_error,
|
|
"precision is not integer");
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 42, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}f}", 42, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 42u, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}f}", 42u, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 42l, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}f}", 42l, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 42ul, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}f}", 42ul, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 42ll, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}f}", 42ll, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", 42ull, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}f}", 42ull, 2), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:3.{1}}", 'x', 0), format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_EQ("1.2", format("{0:.{1}}", 1.2345, 2));
|
|
EXPECT_EQ("1.2", format("{1:.{0}}", 2, 1.2345l));
|
|
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}}", reinterpret_cast<void*>(0xcafe), 2),
|
|
format_error,
|
|
"precision not allowed for this argument type");
|
|
EXPECT_THROW_MSG(format(+"{0:.{1}f}", reinterpret_cast<void*>(0xcafe), 2),
|
|
format_error,
|
|
"precision not allowed for this argument type");
|
|
|
|
EXPECT_EQ("st", format("{0:.{1}}", "str", 2));
|
|
}
|
|
|
|
template <typename T>
|
|
void check_unknown_types(const T& value, const char* types, const char*) {
|
|
char format_str[BUFFER_SIZE];
|
|
const char* special = ".0123456789L}";
|
|
for (int i = CHAR_MIN; i <= CHAR_MAX; ++i) {
|
|
char c = static_cast<char>(i);
|
|
if (std::strchr(types, c) || std::strchr(special, c) || !c) continue;
|
|
safe_sprintf(format_str, "{0:10%c}", c);
|
|
const char* message = "invalid type specifier";
|
|
EXPECT_THROW_MSG(format(+format_str, value), format_error, message)
|
|
<< format_str << " " << message;
|
|
}
|
|
}
|
|
|
|
TEST(BoolTest, FormatBool) {
|
|
EXPECT_EQ("true", format("{}", true));
|
|
EXPECT_EQ("false", format("{}", false));
|
|
EXPECT_EQ("1", format("{:d}", true));
|
|
EXPECT_EQ("true ", format("{:5}", true));
|
|
EXPECT_EQ(L"true", format(L"{}", true));
|
|
EXPECT_EQ("true", format("{:s}", true));
|
|
EXPECT_EQ("false", format("{:s}", false));
|
|
EXPECT_EQ("false ", format("{:6s}", false));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatShort) {
|
|
short s = 42;
|
|
EXPECT_EQ("42", format("{0:d}", s));
|
|
unsigned short us = 42;
|
|
EXPECT_EQ("42", format("{0:d}", us));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatInt) {
|
|
EXPECT_THROW_MSG(format(+"{0:v", 42), format_error,
|
|
"missing '}' in format string");
|
|
check_unknown_types(42, "bBdoxXnLc", "integer");
|
|
EXPECT_EQ("x", format("{:c}", static_cast<int>('x')));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatBin) {
|
|
EXPECT_EQ("0", format("{0:b}", 0));
|
|
EXPECT_EQ("101010", format("{0:b}", 42));
|
|
EXPECT_EQ("101010", format("{0:b}", 42u));
|
|
EXPECT_EQ("-101010", format("{0:b}", -42));
|
|
EXPECT_EQ("11000000111001", format("{0:b}", 12345));
|
|
EXPECT_EQ("10010001101000101011001111000", format("{0:b}", 0x12345678));
|
|
EXPECT_EQ("10010000101010111100110111101111", format("{0:b}", 0x90ABCDEF));
|
|
EXPECT_EQ("11111111111111111111111111111111",
|
|
format("{0:b}", max_value<uint32_t>()));
|
|
}
|
|
|
|
#if FMT_USE_INT128
|
|
constexpr auto int128_max = static_cast<__int128_t>(
|
|
(static_cast<__uint128_t>(1) << ((__SIZEOF_INT128__ * CHAR_BIT) - 1)) - 1);
|
|
constexpr auto int128_min = -int128_max - 1;
|
|
|
|
constexpr auto uint128_max = ~static_cast<__uint128_t>(0);
|
|
#endif
|
|
|
|
TEST(FormatterTest, FormatDec) {
|
|
EXPECT_EQ("0", format("{0}", 0));
|
|
EXPECT_EQ("42", format("{0}", 42));
|
|
EXPECT_EQ("42", format("{0:d}", 42));
|
|
EXPECT_EQ("42", format("{0}", 42u));
|
|
EXPECT_EQ("-42", format("{0}", -42));
|
|
EXPECT_EQ("12345", format("{0}", 12345));
|
|
EXPECT_EQ("67890", format("{0}", 67890));
|
|
#if FMT_USE_INT128
|
|
EXPECT_EQ("0", format("{0}", static_cast<__int128_t>(0)));
|
|
EXPECT_EQ("0", format("{0}", static_cast<__uint128_t>(0)));
|
|
EXPECT_EQ("9223372036854775808",
|
|
format("{0}", static_cast<__int128_t>(INT64_MAX) + 1));
|
|
EXPECT_EQ("-9223372036854775809",
|
|
format("{0}", static_cast<__int128_t>(INT64_MIN) - 1));
|
|
EXPECT_EQ("18446744073709551616",
|
|
format("{0}", static_cast<__int128_t>(UINT64_MAX) + 1));
|
|
EXPECT_EQ("170141183460469231731687303715884105727",
|
|
format("{0}", int128_max));
|
|
EXPECT_EQ("-170141183460469231731687303715884105728",
|
|
format("{0}", int128_min));
|
|
EXPECT_EQ("340282366920938463463374607431768211455",
|
|
format("{0}", uint128_max));
|
|
#endif
|
|
|
|
char buffer[BUFFER_SIZE];
|
|
safe_sprintf(buffer, "%d", INT_MIN);
|
|
EXPECT_EQ(buffer, format("{0}", INT_MIN));
|
|
safe_sprintf(buffer, "%d", INT_MAX);
|
|
EXPECT_EQ(buffer, format("{0}", INT_MAX));
|
|
safe_sprintf(buffer, "%u", UINT_MAX);
|
|
EXPECT_EQ(buffer, format("{0}", UINT_MAX));
|
|
safe_sprintf(buffer, "%ld", 0 - static_cast<unsigned long>(LONG_MIN));
|
|
EXPECT_EQ(buffer, format("{0}", LONG_MIN));
|
|
safe_sprintf(buffer, "%ld", LONG_MAX);
|
|
EXPECT_EQ(buffer, format("{0}", LONG_MAX));
|
|
safe_sprintf(buffer, "%lu", ULONG_MAX);
|
|
EXPECT_EQ(buffer, format("{0}", ULONG_MAX));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatHex) {
|
|
EXPECT_EQ("0", format("{0:x}", 0));
|
|
EXPECT_EQ("42", format("{0:x}", 0x42));
|
|
EXPECT_EQ("42", format("{0:x}", 0x42u));
|
|
EXPECT_EQ("-42", format("{0:x}", -0x42));
|
|
EXPECT_EQ("12345678", format("{0:x}", 0x12345678));
|
|
EXPECT_EQ("90abcdef", format("{0:x}", 0x90abcdef));
|
|
EXPECT_EQ("12345678", format("{0:X}", 0x12345678));
|
|
EXPECT_EQ("90ABCDEF", format("{0:X}", 0x90ABCDEF));
|
|
#if FMT_USE_INT128
|
|
EXPECT_EQ("0", format("{0:x}", static_cast<__int128_t>(0)));
|
|
EXPECT_EQ("0", format("{0:x}", static_cast<__uint128_t>(0)));
|
|
EXPECT_EQ("8000000000000000",
|
|
format("{0:x}", static_cast<__int128_t>(INT64_MAX) + 1));
|
|
EXPECT_EQ("-8000000000000001",
|
|
format("{0:x}", static_cast<__int128_t>(INT64_MIN) - 1));
|
|
EXPECT_EQ("10000000000000000",
|
|
format("{0:x}", static_cast<__int128_t>(UINT64_MAX) + 1));
|
|
EXPECT_EQ("7fffffffffffffffffffffffffffffff", format("{0:x}", int128_max));
|
|
EXPECT_EQ("-80000000000000000000000000000000", format("{0:x}", int128_min));
|
|
EXPECT_EQ("ffffffffffffffffffffffffffffffff", format("{0:x}", uint128_max));
|
|
#endif
|
|
|
|
char buffer[BUFFER_SIZE];
|
|
safe_sprintf(buffer, "-%x", 0 - static_cast<unsigned>(INT_MIN));
|
|
EXPECT_EQ(buffer, format("{0:x}", INT_MIN));
|
|
safe_sprintf(buffer, "%x", INT_MAX);
|
|
EXPECT_EQ(buffer, format("{0:x}", INT_MAX));
|
|
safe_sprintf(buffer, "%x", UINT_MAX);
|
|
EXPECT_EQ(buffer, format("{0:x}", UINT_MAX));
|
|
safe_sprintf(buffer, "-%lx", 0 - static_cast<unsigned long>(LONG_MIN));
|
|
EXPECT_EQ(buffer, format("{0:x}", LONG_MIN));
|
|
safe_sprintf(buffer, "%lx", LONG_MAX);
|
|
EXPECT_EQ(buffer, format("{0:x}", LONG_MAX));
|
|
safe_sprintf(buffer, "%lx", ULONG_MAX);
|
|
EXPECT_EQ(buffer, format("{0:x}", ULONG_MAX));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatOct) {
|
|
EXPECT_EQ("0", format("{0:o}", 0));
|
|
EXPECT_EQ("42", format("{0:o}", 042));
|
|
EXPECT_EQ("42", format("{0:o}", 042u));
|
|
EXPECT_EQ("-42", format("{0:o}", -042));
|
|
EXPECT_EQ("12345670", format("{0:o}", 012345670));
|
|
#if FMT_USE_INT128
|
|
EXPECT_EQ("0", format("{0:o}", static_cast<__int128_t>(0)));
|
|
EXPECT_EQ("0", format("{0:o}", static_cast<__uint128_t>(0)));
|
|
EXPECT_EQ("1000000000000000000000",
|
|
format("{0:o}", static_cast<__int128_t>(INT64_MAX) + 1));
|
|
EXPECT_EQ("-1000000000000000000001",
|
|
format("{0:o}", static_cast<__int128_t>(INT64_MIN) - 1));
|
|
EXPECT_EQ("2000000000000000000000",
|
|
format("{0:o}", static_cast<__int128_t>(UINT64_MAX) + 1));
|
|
EXPECT_EQ("1777777777777777777777777777777777777777777",
|
|
format("{0:o}", int128_max));
|
|
EXPECT_EQ("-2000000000000000000000000000000000000000000",
|
|
format("{0:o}", int128_min));
|
|
EXPECT_EQ("3777777777777777777777777777777777777777777",
|
|
format("{0:o}", uint128_max));
|
|
#endif
|
|
|
|
char buffer[BUFFER_SIZE];
|
|
safe_sprintf(buffer, "-%o", 0 - static_cast<unsigned>(INT_MIN));
|
|
EXPECT_EQ(buffer, format("{0:o}", INT_MIN));
|
|
safe_sprintf(buffer, "%o", INT_MAX);
|
|
EXPECT_EQ(buffer, format("{0:o}", INT_MAX));
|
|
safe_sprintf(buffer, "%o", UINT_MAX);
|
|
EXPECT_EQ(buffer, format("{0:o}", UINT_MAX));
|
|
safe_sprintf(buffer, "-%lo", 0 - static_cast<unsigned long>(LONG_MIN));
|
|
EXPECT_EQ(buffer, format("{0:o}", LONG_MIN));
|
|
safe_sprintf(buffer, "%lo", LONG_MAX);
|
|
EXPECT_EQ(buffer, format("{0:o}", LONG_MAX));
|
|
safe_sprintf(buffer, "%lo", ULONG_MAX);
|
|
EXPECT_EQ(buffer, format("{0:o}", ULONG_MAX));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatIntLocale) {
|
|
EXPECT_EQ("1234", format("{:L}", 1234));
|
|
}
|
|
|
|
struct ConvertibleToLongLong {
|
|
operator long long() const { return 1LL << 32; }
|
|
};
|
|
|
|
TEST(FormatterTest, FormatConvertibleToLongLong) {
|
|
EXPECT_EQ("100000000", format("{:x}", ConvertibleToLongLong()));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatFloat) {
|
|
EXPECT_EQ("0", format("{}", 0.0f));
|
|
EXPECT_EQ("392.500000", format("{0:f}", 392.5f));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatDouble) {
|
|
EXPECT_EQ("0", format("{}", 0.0));
|
|
check_unknown_types(1.2, "eEfFgGaAnL%", "double");
|
|
EXPECT_EQ("0", format("{:}", 0.0));
|
|
EXPECT_EQ("0.000000", format("{:f}", 0.0));
|
|
EXPECT_EQ("0", format("{:g}", 0.0));
|
|
EXPECT_EQ("392.65", format("{:}", 392.65));
|
|
EXPECT_EQ("392.65", format("{:g}", 392.65));
|
|
EXPECT_EQ("392.65", format("{:G}", 392.65));
|
|
EXPECT_EQ("4.9014e+06", format("{:g}", 4.9014e6));
|
|
EXPECT_EQ("392.650000", format("{:f}", 392.65));
|
|
EXPECT_EQ("392.650000", format("{:F}", 392.65));
|
|
EXPECT_EQ("42", format("{:L}", 42.0));
|
|
char buffer[BUFFER_SIZE];
|
|
safe_sprintf(buffer, "%e", 392.65);
|
|
EXPECT_EQ(buffer, format("{0:e}", 392.65));
|
|
safe_sprintf(buffer, "%E", 392.65);
|
|
EXPECT_EQ(buffer, format("{0:E}", 392.65));
|
|
EXPECT_EQ("+0000392.6", format("{0:+010.4g}", 392.65));
|
|
safe_sprintf(buffer, "%a", -42.0);
|
|
EXPECT_EQ(buffer, format("{:a}", -42.0));
|
|
safe_sprintf(buffer, "%A", -42.0);
|
|
EXPECT_EQ(buffer, format("{:A}", -42.0));
|
|
EXPECT_EQ("9223372036854775808.000000",
|
|
format("{:f}", 9223372036854775807.0));
|
|
}
|
|
|
|
TEST(FormatterTest, PrecisionRounding) {
|
|
EXPECT_EQ("0", format("{:.0f}", 0.0));
|
|
EXPECT_EQ("0", format("{:.0f}", 0.01));
|
|
EXPECT_EQ("0", format("{:.0f}", 0.1));
|
|
EXPECT_EQ("0.000", format("{:.3f}", 0.00049));
|
|
EXPECT_EQ("0.001", format("{:.3f}", 0.0005));
|
|
EXPECT_EQ("0.001", format("{:.3f}", 0.00149));
|
|
EXPECT_EQ("0.002", format("{:.3f}", 0.0015));
|
|
EXPECT_EQ("1.000", format("{:.3f}", 0.9999));
|
|
EXPECT_EQ("0.00123", format("{:.3}", 0.00123));
|
|
EXPECT_EQ("0.1", format("{:.16g}", 0.1));
|
|
EXPECT_EQ("1", fmt::format("{:.0}", 1.0));
|
|
EXPECT_EQ("225.51575035152063720",
|
|
fmt::format("{:.17f}", 225.51575035152064));
|
|
EXPECT_EQ("-761519619559038.2", fmt::format("{:.1f}", -761519619559038.2));
|
|
EXPECT_EQ("1.9156918820264798e-56",
|
|
fmt::format("{}", 1.9156918820264798e-56));
|
|
EXPECT_EQ("0.0000", fmt::format("{:.4f}", 7.2809479766055470e-15));
|
|
|
|
// Trigger a rounding error in Grisu by a specially chosen number.
|
|
EXPECT_EQ("3788512123356.985352", format("{:f}", 3788512123356.985352));
|
|
}
|
|
|
|
TEST(FormatterTest, PrettifyFloat) {
|
|
EXPECT_EQ("0.0001", fmt::format("{}", 1e-4));
|
|
EXPECT_EQ("1e-05", fmt::format("{}", 1e-5));
|
|
EXPECT_EQ("1000000000000000", fmt::format("{}", 1e15));
|
|
EXPECT_EQ("1e+16", fmt::format("{}", 1e16));
|
|
EXPECT_EQ("9.999e-05", fmt::format("{}", 9.999e-5));
|
|
EXPECT_EQ("10000000000", fmt::format("{}", 1e10));
|
|
EXPECT_EQ("100000000000", fmt::format("{}", 1e11));
|
|
EXPECT_EQ("12340000000", fmt::format("{}", 1234e7));
|
|
EXPECT_EQ("12.34", fmt::format("{}", 1234e-2));
|
|
EXPECT_EQ("0.001234", fmt::format("{}", 1234e-6));
|
|
EXPECT_EQ("0.1", fmt::format("{}", 0.1f));
|
|
EXPECT_EQ("0.10000000149011612", fmt::format("{}", double(0.1f)));
|
|
EXPECT_EQ("1.3563156e-19", fmt::format("{}", 1.35631564e-19f));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatNaN) {
|
|
double nan = std::numeric_limits<double>::quiet_NaN();
|
|
EXPECT_EQ("nan", format("{}", nan));
|
|
EXPECT_EQ("+nan", format("{:+}", nan));
|
|
if (std::signbit(-nan))
|
|
EXPECT_EQ("-nan", format("{}", -nan));
|
|
else
|
|
fmt::print("Warning: compiler doesn't handle negative NaN correctly");
|
|
EXPECT_EQ(" nan", format("{: }", nan));
|
|
EXPECT_EQ("NAN", format("{:F}", nan));
|
|
EXPECT_EQ("nan ", format("{:<7}", nan));
|
|
EXPECT_EQ(" nan ", format("{:^7}", nan));
|
|
EXPECT_EQ(" nan", format("{:>7}", nan));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatInfinity) {
|
|
double inf = std::numeric_limits<double>::infinity();
|
|
EXPECT_EQ("inf", format("{}", inf));
|
|
EXPECT_EQ("+inf", format("{:+}", inf));
|
|
EXPECT_EQ("-inf", format("{}", -inf));
|
|
EXPECT_EQ(" inf", format("{: }", inf));
|
|
EXPECT_EQ("INF", format("{:F}", inf));
|
|
EXPECT_EQ("inf ", format("{:<7}", inf));
|
|
EXPECT_EQ(" inf ", format("{:^7}", inf));
|
|
EXPECT_EQ(" inf", format("{:>7}", inf));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatLongDouble) {
|
|
EXPECT_EQ("0", format("{0:}", 0.0l));
|
|
EXPECT_EQ("0.000000", format("{0:f}", 0.0l));
|
|
EXPECT_EQ("392.65", format("{0:}", 392.65l));
|
|
EXPECT_EQ("392.65", format("{0:g}", 392.65l));
|
|
EXPECT_EQ("392.65", format("{0:G}", 392.65l));
|
|
EXPECT_EQ("392.650000", format("{0:f}", 392.65l));
|
|
EXPECT_EQ("392.650000", format("{0:F}", 392.65l));
|
|
char buffer[BUFFER_SIZE];
|
|
safe_sprintf(buffer, "%Le", 392.65l);
|
|
EXPECT_EQ(buffer, format("{0:e}", 392.65l));
|
|
EXPECT_EQ("+0000392.6", format("{0:+010.4g}", 392.64l));
|
|
safe_sprintf(buffer, "%La", 3.31l);
|
|
EXPECT_EQ(buffer, format("{:a}", 3.31l));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatChar) {
|
|
const char types[] = "cbBdoxX";
|
|
check_unknown_types('a', types, "char");
|
|
EXPECT_EQ("a", format("{0}", 'a'));
|
|
EXPECT_EQ("z", format("{0:c}", 'z'));
|
|
EXPECT_EQ(L"a", format(L"{0}", 'a'));
|
|
int n = 'x';
|
|
for (const char* type = types + 1; *type; ++type) {
|
|
std::string format_str = fmt::format("{{:{}}}", *type);
|
|
EXPECT_EQ(fmt::format(format_str, n), fmt::format(format_str, 'x'))
|
|
<< format_str;
|
|
}
|
|
EXPECT_EQ(fmt::format("{:02X}", n), fmt::format("{:02X}", 'x'));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatVolatileChar) {
|
|
volatile char c = 'x';
|
|
EXPECT_EQ("x", format("{}", c));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatUnsignedChar) {
|
|
EXPECT_EQ("42", format("{}", static_cast<unsigned char>(42)));
|
|
EXPECT_EQ("42", format("{}", static_cast<uint8_t>(42)));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatWChar) {
|
|
EXPECT_EQ(L"a", format(L"{0}", L'a'));
|
|
// This shouldn't compile:
|
|
// format("{}", L'a');
|
|
}
|
|
|
|
TEST(FormatterTest, FormatCString) {
|
|
check_unknown_types("test", "sp", "string");
|
|
EXPECT_EQ("test", format("{0}", "test"));
|
|
EXPECT_EQ("test", format("{0:s}", "test"));
|
|
char nonconst[] = "nonconst";
|
|
EXPECT_EQ("nonconst", format("{0}", nonconst));
|
|
EXPECT_THROW_MSG(format(+"{0}", static_cast<const char*>(nullptr)),
|
|
format_error, "string pointer is null");
|
|
}
|
|
|
|
TEST(FormatterTest, FormatSCharString) {
|
|
signed char str[] = "test";
|
|
EXPECT_EQ("test", format("{0:s}", str));
|
|
const signed char* const_str = str;
|
|
EXPECT_EQ("test", format("{0:s}", const_str));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatUCharString) {
|
|
unsigned char str[] = "test";
|
|
EXPECT_EQ("test", format("{0:s}", str));
|
|
const unsigned char* const_str = str;
|
|
EXPECT_EQ("test", format("{0:s}", const_str));
|
|
unsigned char* ptr = str;
|
|
EXPECT_EQ("test", format("{0:s}", ptr));
|
|
}
|
|
|
|
void function_pointer_test(int, double, std::string) {}
|
|
|
|
TEST(FormatterTest, FormatPointer) {
|
|
check_unknown_types(reinterpret_cast<void*>(0x1234), "p", "pointer");
|
|
EXPECT_EQ("0x0", format("{0}", static_cast<void*>(nullptr)));
|
|
EXPECT_EQ("0x1234", format("{0}", reinterpret_cast<void*>(0x1234)));
|
|
EXPECT_EQ("0x1234", format("{0:p}", reinterpret_cast<void*>(0x1234)));
|
|
EXPECT_EQ("0x" + std::string(sizeof(void*) * CHAR_BIT / 4, 'f'),
|
|
format("{0}", reinterpret_cast<void*>(~uintptr_t())));
|
|
EXPECT_EQ("0x1234", format("{}", fmt::ptr(reinterpret_cast<int*>(0x1234))));
|
|
std::unique_ptr<int> up(new int(1));
|
|
EXPECT_EQ(format("{}", fmt::ptr(up.get())), format("{}", fmt::ptr(up)));
|
|
std::shared_ptr<int> sp(new int(1));
|
|
EXPECT_EQ(format("{}", fmt::ptr(sp.get())), format("{}", fmt::ptr(sp)));
|
|
EXPECT_EQ(
|
|
format("{}", fmt::detail::bit_cast<const void*>(&function_pointer_test)),
|
|
format("{}", fmt::ptr(function_pointer_test)));
|
|
EXPECT_EQ("0x0", format("{}", nullptr));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatString) {
|
|
EXPECT_EQ("test", format("{0}", std::string("test")));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatStringView) {
|
|
EXPECT_EQ("test", format("{}", string_view("test")));
|
|
EXPECT_EQ("", format("{}", string_view()));
|
|
}
|
|
|
|
#ifdef FMT_USE_STRING_VIEW
|
|
struct string_viewable {};
|
|
|
|
FMT_BEGIN_NAMESPACE
|
|
template <> struct formatter<string_viewable> : formatter<std::string_view> {
|
|
auto format(string_viewable, format_context& ctx) -> decltype(ctx.out()) {
|
|
return formatter<std::string_view>::format("foo", ctx);
|
|
}
|
|
};
|
|
FMT_END_NAMESPACE
|
|
|
|
TEST(FormatterTest, FormatStdStringView) {
|
|
EXPECT_EQ("test", format("{}", std::string_view("test")));
|
|
EXPECT_EQ("foo", format("{}", string_viewable()));
|
|
}
|
|
|
|
struct explicitly_convertible_to_std_string_view {
|
|
explicit operator std::string_view() const { return "foo"; }
|
|
};
|
|
|
|
namespace fmt {
|
|
template <>
|
|
struct formatter<explicitly_convertible_to_std_string_view>
|
|
: formatter<std::string_view> {
|
|
auto format(const explicitly_convertible_to_std_string_view& v,
|
|
format_context& ctx) -> decltype(ctx.out()) {
|
|
return format_to(ctx.out(), "'{}'", std::string_view(v));
|
|
}
|
|
};
|
|
} // namespace fmt
|
|
|
|
TEST(FormatterTest, FormatExplicitlyConvertibleToStdStringView) {
|
|
EXPECT_EQ("'foo'",
|
|
fmt::format("{}", explicitly_convertible_to_std_string_view()));
|
|
}
|
|
#endif
|
|
|
|
// std::is_constructible is broken in MSVC until version 2015.
|
|
#if !FMT_MSC_VER || FMT_MSC_VER >= 1900
|
|
struct explicitly_convertible_to_wstring_view {
|
|
explicit operator fmt::wstring_view() const { return L"foo"; }
|
|
};
|
|
|
|
TEST(FormatTest, FormatExplicitlyConvertibleToWStringView) {
|
|
EXPECT_EQ(L"foo",
|
|
fmt::format(L"{}", explicitly_convertible_to_wstring_view()));
|
|
}
|
|
#endif
|
|
|
|
namespace fake_qt {
|
|
class QString {
|
|
public:
|
|
QString(const wchar_t* s) : s_(std::make_shared<std::wstring>(s)) {}
|
|
const wchar_t* utf16() const FMT_NOEXCEPT { return s_->data(); }
|
|
int size() const FMT_NOEXCEPT { return static_cast<int>(s_->size()); }
|
|
|
|
private:
|
|
std::shared_ptr<std::wstring> s_;
|
|
};
|
|
|
|
fmt::basic_string_view<wchar_t> to_string_view(const QString& s) FMT_NOEXCEPT {
|
|
return {s.utf16(), static_cast<size_t>(s.size())};
|
|
}
|
|
} // namespace fake_qt
|
|
|
|
TEST(FormatTest, FormatForeignStrings) {
|
|
using fake_qt::QString;
|
|
EXPECT_EQ(fmt::format(QString(L"{}"), 42), L"42");
|
|
EXPECT_EQ(fmt::format(QString(L"{}"), QString(L"42")), L"42");
|
|
}
|
|
|
|
FMT_BEGIN_NAMESPACE
|
|
template <> struct formatter<Date> {
|
|
template <typename ParseContext>
|
|
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
|
|
auto it = ctx.begin();
|
|
if (it != ctx.end() && *it == 'd') ++it;
|
|
return it;
|
|
}
|
|
|
|
auto format(const Date& d, format_context& ctx) -> decltype(ctx.out()) {
|
|
format_to(ctx.out(), "{}-{}-{}", d.year(), d.month(), d.day());
|
|
return ctx.out();
|
|
}
|
|
};
|
|
FMT_END_NAMESPACE
|
|
|
|
TEST(FormatterTest, FormatCustom) {
|
|
Date date(2012, 12, 9);
|
|
EXPECT_THROW_MSG(fmt::format(+"{:s}", date), format_error,
|
|
"unknown format specifier");
|
|
}
|
|
|
|
class Answer {};
|
|
|
|
FMT_BEGIN_NAMESPACE
|
|
template <> struct formatter<Answer> : formatter<int> {
|
|
template <typename FormatContext>
|
|
auto format(Answer, FormatContext& ctx) -> decltype(ctx.out()) {
|
|
return formatter<int>::format(42, ctx);
|
|
}
|
|
};
|
|
FMT_END_NAMESPACE
|
|
|
|
TEST(FormatterTest, CustomFormat) {
|
|
EXPECT_EQ("42", format("{0}", Answer()));
|
|
EXPECT_EQ("0042", format("{:04}", Answer()));
|
|
}
|
|
|
|
TEST(FormatterTest, CustomFormatTo) {
|
|
char buf[10] = {};
|
|
auto end =
|
|
&*fmt::format_to(fmt::detail::make_checked(buf, 10), "{}", Answer());
|
|
EXPECT_EQ(end, buf + 2);
|
|
EXPECT_STREQ(buf, "42");
|
|
}
|
|
|
|
TEST(FormatterTest, WideFormatString) {
|
|
EXPECT_EQ(L"42", format(L"{}", 42));
|
|
EXPECT_EQ(L"4.2", format(L"{}", 4.2));
|
|
EXPECT_EQ(L"abc", format(L"{}", L"abc"));
|
|
EXPECT_EQ(L"z", format(L"{}", L'z'));
|
|
EXPECT_THROW(fmt::format(L"{:*\x343E}", 42), fmt::format_error);
|
|
}
|
|
|
|
TEST(FormatterTest, FormatStringFromSpeedTest) {
|
|
EXPECT_EQ("1.2340000000:0042:+3.13:str:0x3e8:X:%",
|
|
format("{0:0.10f}:{1:04}:{2:+g}:{3}:{4}:{5}:%", 1.234, 42, 3.13,
|
|
"str", reinterpret_cast<void*>(1000), 'X'));
|
|
}
|
|
|
|
TEST(FormatterTest, FormatExamples) {
|
|
std::string message = format("The answer is {}", 42);
|
|
EXPECT_EQ("The answer is 42", message);
|
|
|
|
EXPECT_EQ("42", format("{}", 42));
|
|
EXPECT_EQ("42", format(std::string("{}"), 42));
|
|
|
|
memory_buffer out;
|
|
format_to(out, "The answer is {}.", 42);
|
|
EXPECT_EQ("The answer is 42.", to_string(out));
|
|
|
|
const char* filename = "nonexistent";
|
|
FILE* ftest = safe_fopen(filename, "r");
|
|
if (ftest) fclose(ftest);
|
|
int error_code = errno;
|
|
EXPECT_TRUE(ftest == nullptr);
|
|
EXPECT_SYSTEM_ERROR(
|
|
{
|
|
FILE* f = safe_fopen(filename, "r");
|
|
if (!f)
|
|
throw fmt::system_error(errno, "Cannot open file '{}'", filename);
|
|
fclose(f);
|
|
},
|
|
error_code, "Cannot open file 'nonexistent'");
|
|
}
|
|
|
|
TEST(FormatterTest, Examples) {
|
|
EXPECT_EQ("First, thou shalt count to three",
|
|
format("First, thou shalt count to {0}", "three"));
|
|
EXPECT_EQ("Bring me a shrubbery", format("Bring me a {}", "shrubbery"));
|
|
EXPECT_EQ("From 1 to 3", format("From {} to {}", 1, 3));
|
|
|
|
char buffer[BUFFER_SIZE];
|
|
safe_sprintf(buffer, "%03.2f", -1.2);
|
|
EXPECT_EQ(buffer, format("{:03.2f}", -1.2));
|
|
|
|
EXPECT_EQ("a, b, c", format("{0}, {1}, {2}", 'a', 'b', 'c'));
|
|
EXPECT_EQ("a, b, c", format("{}, {}, {}", 'a', 'b', 'c'));
|
|
EXPECT_EQ("c, b, a", format("{2}, {1}, {0}", 'a', 'b', 'c'));
|
|
EXPECT_EQ("abracadabra", format("{0}{1}{0}", "abra", "cad"));
|
|
|
|
EXPECT_EQ("left aligned ", format("{:<30}", "left aligned"));
|
|
EXPECT_EQ(" right aligned",
|
|
format("{:>30}", "right aligned"));
|
|
EXPECT_EQ(" centered ", format("{:^30}", "centered"));
|
|
EXPECT_EQ("***********centered***********", format("{:*^30}", "centered"));
|
|
|
|
EXPECT_EQ("+3.140000; -3.140000", format("{:+f}; {:+f}", 3.14, -3.14));
|
|
EXPECT_EQ(" 3.140000; -3.140000", format("{: f}; {: f}", 3.14, -3.14));
|
|
EXPECT_EQ("3.140000; -3.140000", format("{:-f}; {:-f}", 3.14, -3.14));
|
|
|
|
EXPECT_EQ("int: 42; hex: 2a; oct: 52",
|
|
format("int: {0:d}; hex: {0:x}; oct: {0:o}", 42));
|
|
EXPECT_EQ("int: 42; hex: 0x2a; oct: 052",
|
|
format("int: {0:d}; hex: {0:#x}; oct: {0:#o}", 42));
|
|
|
|
EXPECT_EQ("The answer is 42", format("The answer is {}", 42));
|
|
EXPECT_THROW_MSG(format(+"The answer is {:d}", "forty-two"), format_error,
|
|
"invalid type specifier");
|
|
|
|
EXPECT_EQ(L"Cyrillic letter \x42e", format(L"Cyrillic letter {}", L'\x42e'));
|
|
|
|
EXPECT_WRITE(
|
|
stdout, fmt::print("{}", std::numeric_limits<double>::infinity()), "inf");
|
|
}
|
|
|
|
TEST(FormatIntTest, Data) {
|
|
fmt::format_int format_int(42);
|
|
EXPECT_EQ("42", std::string(format_int.data(), format_int.size()));
|
|
}
|
|
|
|
TEST(FormatIntTest, FormatInt) {
|
|
EXPECT_EQ("42", fmt::format_int(42).str());
|
|
EXPECT_EQ(2u, fmt::format_int(42).size());
|
|
EXPECT_EQ("-42", fmt::format_int(-42).str());
|
|
EXPECT_EQ(3u, fmt::format_int(-42).size());
|
|
EXPECT_EQ("42", fmt::format_int(42ul).str());
|
|
EXPECT_EQ("-42", fmt::format_int(-42l).str());
|
|
EXPECT_EQ("42", fmt::format_int(42ull).str());
|
|
EXPECT_EQ("-42", fmt::format_int(-42ll).str());
|
|
std::ostringstream os;
|
|
os << max_value<int64_t>();
|
|
EXPECT_EQ(os.str(), fmt::format_int(max_value<int64_t>()).str());
|
|
}
|
|
|
|
TEST(FormatTest, Print) {
|
|
#if FMT_USE_FCNTL
|
|
EXPECT_WRITE(stdout, fmt::print("Don't {}!", "panic"), "Don't panic!");
|
|
EXPECT_WRITE(stderr, fmt::print(stderr, "Don't {}!", "panic"),
|
|
"Don't panic!");
|
|
#endif
|
|
// Check that the wide print overload compiles.
|
|
if (fmt::detail::const_check(false)) fmt::print(L"test");
|
|
}
|
|
|
|
TEST(FormatTest, Variadic) {
|
|
EXPECT_EQ("abc1", format("{}c{}", "ab", 1));
|
|
EXPECT_EQ(L"abc1", format(L"{}c{}", L"ab", 1));
|
|
}
|
|
|
|
TEST(FormatTest, Dynamic) {
|
|
typedef fmt::format_context ctx;
|
|
std::vector<fmt::basic_format_arg<ctx>> args;
|
|
args.emplace_back(fmt::detail::make_arg<ctx>(42));
|
|
args.emplace_back(fmt::detail::make_arg<ctx>("abc1"));
|
|
args.emplace_back(fmt::detail::make_arg<ctx>(1.5f));
|
|
|
|
std::string result = fmt::vformat(
|
|
"{} and {} and {}",
|
|
fmt::basic_format_args<ctx>(args.data(), static_cast<int>(args.size())));
|
|
|
|
EXPECT_EQ("42 and abc1 and 1.5", result);
|
|
}
|
|
|
|
TEST(FormatTest, Bytes) {
|
|
auto s = fmt::format("{:10}", fmt::bytes("ёжик"));
|
|
EXPECT_EQ("ёжик ", s);
|
|
EXPECT_EQ(10, s.size());
|
|
}
|
|
|
|
TEST(FormatTest, JoinArg) {
|
|
using fmt::join;
|
|
int v1[3] = {1, 2, 3};
|
|
std::vector<float> v2;
|
|
v2.push_back(1.2f);
|
|
v2.push_back(3.4f);
|
|
void* v3[2] = {&v1[0], &v1[1]};
|
|
|
|
EXPECT_EQ("(1, 2, 3)", format("({})", join(v1, v1 + 3, ", ")));
|
|
EXPECT_EQ("(1)", format("({})", join(v1, v1 + 1, ", ")));
|
|
EXPECT_EQ("()", format("({})", join(v1, v1, ", ")));
|
|
EXPECT_EQ("(001, 002, 003)", format("({:03})", join(v1, v1 + 3, ", ")));
|
|
EXPECT_EQ("(+01.20, +03.40)",
|
|
format("({:+06.2f})", join(v2.begin(), v2.end(), ", ")));
|
|
|
|
EXPECT_EQ(L"(1, 2, 3)", format(L"({})", join(v1, v1 + 3, L", ")));
|
|
EXPECT_EQ("1, 2, 3", format("{0:{1}}", join(v1, v1 + 3, ", "), 1));
|
|
|
|
EXPECT_EQ(format("{}, {}", v3[0], v3[1]),
|
|
format("{}", join(v3, v3 + 2, ", ")));
|
|
|
|
#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 405
|
|
EXPECT_EQ("(1, 2, 3)", format("({})", join(v1, ", ")));
|
|
EXPECT_EQ("(+01.20, +03.40)", format("({:+06.2f})", join(v2, ", ")));
|
|
#endif
|
|
}
|
|
|
|
#ifdef __cpp_lib_byte
|
|
TEST(FormatTest, JoinBytes) {
|
|
std::vector<std::byte> v = {std::byte(1), std::byte(2), std::byte(3)};
|
|
EXPECT_EQ("1, 2, 3", fmt::format("{}", fmt::join(v, ", ")));
|
|
}
|
|
#endif
|
|
|
|
template <typename T> std::string str(const T& value) {
|
|
return fmt::format("{}", value);
|
|
}
|
|
|
|
TEST(StrTest, Convert) {
|
|
EXPECT_EQ("42", str(42));
|
|
std::string s = str(Date(2012, 12, 9));
|
|
EXPECT_EQ("2012-12-9", s);
|
|
}
|
|
|
|
std::string vformat_message(int id, const char* format, fmt::format_args args) {
|
|
fmt::memory_buffer buffer;
|
|
format_to(buffer, "[{}] ", id);
|
|
vformat_to(buffer, format, args);
|
|
return to_string(buffer);
|
|
}
|
|
|
|
template <typename... Args>
|
|
std::string format_message(int id, const char* format, const Args&... args) {
|
|
auto va = fmt::make_format_args(args...);
|
|
return vformat_message(id, format, va);
|
|
}
|
|
|
|
TEST(FormatTest, FormatMessageExample) {
|
|
EXPECT_EQ("[42] something happened",
|
|
format_message(42, "{} happened", "something"));
|
|
}
|
|
|
|
template <typename... Args>
|
|
void print_error(const char* file, int line, const char* format,
|
|
const Args&... args) {
|
|
fmt::print("{}: {}: ", file, line);
|
|
fmt::print(format, args...);
|
|
}
|
|
|
|
TEST(FormatTest, UnpackedArgs) {
|
|
EXPECT_EQ("0123456789abcdefg",
|
|
fmt::format("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 0, 1, 2, 3, 4, 5,
|
|
6, 7, 8, 9, 'a', 'b', 'c', 'd', 'e', 'f', 'g'));
|
|
}
|
|
|
|
struct string_like {};
|
|
fmt::string_view to_string_view(string_like) { return "foo"; }
|
|
|
|
constexpr char with_null[3] = {'{', '}', '\0'};
|
|
constexpr char no_null[2] = {'{', '}'};
|
|
static FMT_CONSTEXPR_DECL const char static_with_null[3] = {'{', '}', '\0'};
|
|
static FMT_CONSTEXPR_DECL const wchar_t static_with_null_wide[3] = {'{', '}',
|
|
'\0'};
|
|
static FMT_CONSTEXPR_DECL const char static_no_null[2] = {'{', '}'};
|
|
static FMT_CONSTEXPR_DECL const wchar_t static_no_null_wide[2] = {'{', '}'};
|
|
|
|
TEST(FormatTest, CompileTimeString) {
|
|
EXPECT_EQ("foo", fmt::format(FMT_STRING("foo")));
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), 42));
|
|
EXPECT_EQ(L"42", fmt::format(FMT_STRING(L"{}"), 42));
|
|
EXPECT_EQ("foo", fmt::format(FMT_STRING("{}"), string_like()));
|
|
|
|
(void)static_with_null;
|
|
(void)static_with_null_wide;
|
|
(void)static_no_null;
|
|
(void)static_no_null_wide;
|
|
#if !defined(_MSC_VER)
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING(static_with_null), 42));
|
|
EXPECT_EQ(L"42", fmt::format(FMT_STRING(static_with_null_wide), 42));
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING(static_no_null), 42));
|
|
EXPECT_EQ(L"42", fmt::format(FMT_STRING(static_no_null_wide), 42));
|
|
#endif
|
|
|
|
(void)with_null;
|
|
(void)no_null;
|
|
#if __cplusplus >= 201703L
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING(with_null), 42));
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING(no_null), 42));
|
|
#endif
|
|
#if defined(FMT_USE_STRING_VIEW) && __cplusplus >= 201703L
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING(std::string_view("{}")), 42));
|
|
EXPECT_EQ(L"42", fmt::format(FMT_STRING(std::wstring_view(L"{}")), 42));
|
|
#endif
|
|
}
|
|
|
|
TEST(FormatTest, CustomFormatCompileTimeString) {
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), Answer()));
|
|
Answer answer;
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), answer));
|
|
char buf[10] = {};
|
|
fmt::format_to(buf, FMT_STRING("{}"), answer);
|
|
const Answer const_answer = Answer();
|
|
EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), const_answer));
|
|
}
|
|
|
|
#if FMT_USE_USER_DEFINED_LITERALS
|
|
// Passing user-defined literals directly to EXPECT_EQ causes problems
|
|
// with macro argument stringification (#) on some versions of GCC.
|
|
// Workaround: Assing the UDL result to a variable before the macro.
|
|
|
|
using namespace fmt::literals;
|
|
|
|
TEST(LiteralsTest, Format) {
|
|
auto udl_format = "{}c{}"_format("ab", 1);
|
|
EXPECT_EQ(format("{}c{}", "ab", 1), udl_format);
|
|
auto udl_format_w = L"{}c{}"_format(L"ab", 1);
|
|
EXPECT_EQ(format(L"{}c{}", L"ab", 1), udl_format_w);
|
|
}
|
|
|
|
TEST(LiteralsTest, NamedArg) {
|
|
auto udl_a = format("{first}{second}{first}{third}", "first"_a = "abra",
|
|
"second"_a = "cad", "third"_a = 99);
|
|
EXPECT_EQ(format("{first}{second}{first}{third}", fmt::arg("first", "abra"),
|
|
fmt::arg("second", "cad"), fmt::arg("third", 99)),
|
|
udl_a);
|
|
auto udl_a_w = format(L"{first}{second}{first}{third}", L"first"_a = L"abra",
|
|
L"second"_a = L"cad", L"third"_a = 99);
|
|
EXPECT_EQ(
|
|
format(L"{first}{second}{first}{third}", fmt::arg(L"first", L"abra"),
|
|
fmt::arg(L"second", L"cad"), fmt::arg(L"third", 99)),
|
|
udl_a_w);
|
|
}
|
|
|
|
TEST(FormatTest, UdlTemplate) {
|
|
EXPECT_EQ("foo", "foo"_format());
|
|
EXPECT_EQ(" 42", "{0:10}"_format(42));
|
|
}
|
|
|
|
TEST(FormatTest, UdlPassUserDefinedObjectAsLvalue) {
|
|
Date date(2015, 10, 21);
|
|
EXPECT_EQ("2015-10-21", "{}"_format(date));
|
|
}
|
|
#endif // FMT_USE_USER_DEFINED_LITERALS
|
|
|
|
enum TestEnum { A };
|
|
|
|
TEST(FormatTest, Enum) { EXPECT_EQ("0", fmt::format("{}", A)); }
|
|
|
|
TEST(FormatTest, FormatterNotSpecialized) {
|
|
static_assert(
|
|
!fmt::has_formatter<fmt::formatter<TestEnum>, fmt::format_context>::value,
|
|
"");
|
|
}
|
|
|
|
#if FMT_HAS_FEATURE(cxx_strong_enums)
|
|
enum big_enum : unsigned long long { big_enum_value = 5000000000ULL };
|
|
|
|
TEST(FormatTest, StrongEnum) {
|
|
EXPECT_EQ("5000000000", fmt::format("{}", big_enum_value));
|
|
}
|
|
#endif
|
|
|
|
TEST(FormatTest, NonNullTerminatedFormatString) {
|
|
EXPECT_EQ("42", format(string_view("{}foo", 2), 42));
|
|
}
|
|
|
|
struct variant {
|
|
enum { INT, STRING } type;
|
|
explicit variant(int) : type(INT) {}
|
|
explicit variant(const char*) : type(STRING) {}
|
|
};
|
|
|
|
FMT_BEGIN_NAMESPACE
|
|
template <> struct formatter<variant> : dynamic_formatter<> {
|
|
auto format(variant value, format_context& ctx) -> decltype(ctx.out()) {
|
|
if (value.type == variant::INT) return dynamic_formatter<>::format(42, ctx);
|
|
return dynamic_formatter<>::format("foo", ctx);
|
|
}
|
|
};
|
|
FMT_END_NAMESPACE
|
|
|
|
TEST(FormatTest, DynamicFormatter) {
|
|
auto num = variant(42);
|
|
auto str = variant("foo");
|
|
EXPECT_EQ("42", format("{:d}", num));
|
|
EXPECT_EQ("foo", format("{:s}", str));
|
|
EXPECT_EQ(" 42 foo ", format("{:{}} {:{}}", num, 3, str, 4));
|
|
EXPECT_THROW_MSG(format(+"{0:{}}", num), format_error,
|
|
"cannot switch from manual to automatic argument indexing");
|
|
EXPECT_THROW_MSG(format(+"{:{0}}", num), format_error,
|
|
"cannot switch from automatic to manual argument indexing");
|
|
#if FMT_DEPRECATED_NUMERIC_ALIGN
|
|
EXPECT_THROW_MSG(format(+"{:=}", str), format_error,
|
|
"format specifier requires numeric argument");
|
|
#endif
|
|
EXPECT_THROW_MSG(format(+"{:+}", str), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{:-}", str), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{: }", str), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{:#}", str), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{:0}", str), format_error,
|
|
"format specifier requires numeric argument");
|
|
EXPECT_THROW_MSG(format(+"{:.2}", num), format_error,
|
|
"precision not allowed for this argument type");
|
|
}
|
|
|
|
namespace adl_test {
|
|
namespace fmt {
|
|
namespace detail {
|
|
struct foo {};
|
|
template <typename, typename OutputIt> void write(OutputIt, foo) = delete;
|
|
} // namespace detail
|
|
} // namespace fmt
|
|
} // namespace adl_test
|
|
|
|
FMT_BEGIN_NAMESPACE
|
|
template <>
|
|
struct formatter<adl_test::fmt::detail::foo> : formatter<std::string> {
|
|
template <typename FormatContext>
|
|
auto format(adl_test::fmt::detail::foo, FormatContext& ctx)
|
|
-> decltype(ctx.out()) {
|
|
return formatter<std::string>::format("foo", ctx);
|
|
}
|
|
};
|
|
FMT_END_NAMESPACE
|
|
|
|
TEST(FormatTest, ToString) {
|
|
EXPECT_EQ("42", fmt::to_string(42));
|
|
EXPECT_EQ("0x1234", fmt::to_string(reinterpret_cast<void*>(0x1234)));
|
|
EXPECT_EQ("foo", fmt::to_string(adl_test::fmt::detail::foo()));
|
|
|
|
enum test_enum : unsigned char { test_value };
|
|
EXPECT_EQ("0", fmt::to_string(test_value));
|
|
}
|
|
|
|
TEST(FormatTest, ToWString) { EXPECT_EQ(L"42", fmt::to_wstring(42)); }
|
|
|
|
TEST(FormatTest, OutputIterators) {
|
|
std::list<char> out;
|
|
fmt::format_to(std::back_inserter(out), "{}", 42);
|
|
EXPECT_EQ("42", std::string(out.begin(), out.end()));
|
|
std::stringstream s;
|
|
fmt::format_to(std::ostream_iterator<char>(s), "{}", 42);
|
|
EXPECT_EQ("42", s.str());
|
|
}
|
|
|
|
TEST(FormatTest, FormattedSize) {
|
|
EXPECT_EQ(2u, fmt::formatted_size("{}", 42));
|
|
}
|
|
|
|
TEST(FormatTest, FormatTo) {
|
|
std::vector<char> v;
|
|
fmt::format_to(std::back_inserter(v), "{}", "foo");
|
|
EXPECT_EQ(string_view(v.data(), v.size()), "foo");
|
|
}
|
|
|
|
struct nongrowing_container {
|
|
using value_type = char;
|
|
void push_back(char) { throw std::runtime_error("can't take it any more"); }
|
|
};
|
|
|
|
TEST(FormatTest, FormatToPropagatesExceptions) {
|
|
auto c = nongrowing_container();
|
|
EXPECT_THROW(fmt::format_to(std::back_inserter(c), "{}", 42),
|
|
std::runtime_error);
|
|
}
|
|
|
|
TEST(FormatTest, FormatToN) {
|
|
char buffer[4];
|
|
buffer[3] = 'x';
|
|
auto result = fmt::format_to_n(buffer, 3, "{}", 12345);
|
|
EXPECT_EQ(5u, result.size);
|
|
EXPECT_EQ(buffer + 3, result.out);
|
|
EXPECT_EQ("123x", fmt::string_view(buffer, 4));
|
|
|
|
result = fmt::format_to_n(buffer, 3, "{:s}", "foobar");
|
|
EXPECT_EQ(6u, result.size);
|
|
EXPECT_EQ(buffer + 3, result.out);
|
|
EXPECT_EQ("foox", fmt::string_view(buffer, 4));
|
|
|
|
buffer[0] = 'x';
|
|
buffer[1] = 'x';
|
|
buffer[2] = 'x';
|
|
result = fmt::format_to_n(buffer, 3, "{}", 'A');
|
|
EXPECT_EQ(1u, result.size);
|
|
EXPECT_EQ(buffer + 1, result.out);
|
|
EXPECT_EQ("Axxx", fmt::string_view(buffer, 4));
|
|
|
|
result = fmt::format_to_n(buffer, 3, "{}{} ", 'B', 'C');
|
|
EXPECT_EQ(3u, result.size);
|
|
EXPECT_EQ(buffer + 3, result.out);
|
|
EXPECT_EQ("BC x", fmt::string_view(buffer, 4));
|
|
|
|
result = fmt::format_to_n(buffer, 4, "{}", "ABCDE");
|
|
EXPECT_EQ(5u, result.size);
|
|
EXPECT_EQ("ABCD", fmt::string_view(buffer, 4));
|
|
|
|
buffer[3] = 'x';
|
|
result = fmt::format_to_n(buffer, 3, "{}", std::string(1000, '*'));
|
|
EXPECT_EQ(1000u, result.size);
|
|
EXPECT_EQ("***x", fmt::string_view(buffer, 4));
|
|
}
|
|
|
|
TEST(FormatTest, WideFormatToN) {
|
|
wchar_t buffer[4];
|
|
buffer[3] = L'x';
|
|
auto result = fmt::format_to_n(buffer, 3, L"{}", 12345);
|
|
EXPECT_EQ(5u, result.size);
|
|
EXPECT_EQ(buffer + 3, result.out);
|
|
EXPECT_EQ(L"123x", fmt::wstring_view(buffer, 4));
|
|
buffer[0] = L'x';
|
|
buffer[1] = L'x';
|
|
buffer[2] = L'x';
|
|
result = fmt::format_to_n(buffer, 3, L"{}", L'A');
|
|
EXPECT_EQ(1u, result.size);
|
|
EXPECT_EQ(buffer + 1, result.out);
|
|
EXPECT_EQ(L"Axxx", fmt::wstring_view(buffer, 4));
|
|
result = fmt::format_to_n(buffer, 3, L"{}{} ", L'B', L'C');
|
|
EXPECT_EQ(3u, result.size);
|
|
EXPECT_EQ(buffer + 3, result.out);
|
|
EXPECT_EQ(L"BC x", fmt::wstring_view(buffer, 4));
|
|
}
|
|
|
|
struct test_output_iterator {
|
|
char* data;
|
|
|
|
using iterator_category = std::output_iterator_tag;
|
|
using value_type = void;
|
|
using difference_type = void;
|
|
using pointer = void;
|
|
using reference = void;
|
|
|
|
test_output_iterator& operator++() {
|
|
++data;
|
|
return *this;
|
|
}
|
|
test_output_iterator operator++(int) {
|
|
auto tmp = *this;
|
|
++data;
|
|
return tmp;
|
|
}
|
|
char& operator*() { return *data; }
|
|
};
|
|
|
|
TEST(FormatTest, FormatToNOutputIterator) {
|
|
char buf[10] = {};
|
|
fmt::format_to_n(test_output_iterator{buf}, 10, "{}", 42);
|
|
EXPECT_STREQ(buf, "42");
|
|
}
|
|
|
|
#if FMT_USE_CONSTEXPR
|
|
struct test_arg_id_handler {
|
|
enum result { NONE, EMPTY, INDEX, NAME, ERROR };
|
|
result res = NONE;
|
|
int index = 0;
|
|
string_view name;
|
|
|
|
FMT_CONSTEXPR void operator()() { res = EMPTY; }
|
|
|
|
FMT_CONSTEXPR void operator()(int i) {
|
|
res = INDEX;
|
|
index = i;
|
|
}
|
|
|
|
FMT_CONSTEXPR void operator()(string_view n) {
|
|
res = NAME;
|
|
name = n;
|
|
}
|
|
|
|
FMT_CONSTEXPR void on_error(const char*) { res = ERROR; }
|
|
};
|
|
|
|
template <size_t N>
|
|
FMT_CONSTEXPR test_arg_id_handler parse_arg_id(const char (&s)[N]) {
|
|
test_arg_id_handler h;
|
|
fmt::detail::parse_arg_id(s, s + N, h);
|
|
return h;
|
|
}
|
|
|
|
TEST(FormatTest, ConstexprParseArgID) {
|
|
static_assert(parse_arg_id(":").res == test_arg_id_handler::EMPTY, "");
|
|
static_assert(parse_arg_id("}").res == test_arg_id_handler::EMPTY, "");
|
|
static_assert(parse_arg_id("42:").res == test_arg_id_handler::INDEX, "");
|
|
static_assert(parse_arg_id("42:").index == 42, "");
|
|
static_assert(parse_arg_id("foo:").res == test_arg_id_handler::NAME, "");
|
|
static_assert(parse_arg_id("foo:").name.size() == 3, "");
|
|
static_assert(parse_arg_id("!").res == test_arg_id_handler::ERROR, "");
|
|
}
|
|
|
|
struct test_format_specs_handler {
|
|
enum Result { NONE, PLUS, MINUS, SPACE, HASH, ZERO, LOC, ERROR };
|
|
Result res = NONE;
|
|
|
|
fmt::align_t alignment = fmt::align::none;
|
|
char fill = 0;
|
|
int width = 0;
|
|
fmt::detail::arg_ref<char> width_ref;
|
|
int precision = 0;
|
|
fmt::detail::arg_ref<char> precision_ref;
|
|
char type = 0;
|
|
|
|
// Workaround for MSVC2017 bug that results in "expression did not evaluate
|
|
// to a constant" with compiler-generated copy ctor.
|
|
FMT_CONSTEXPR test_format_specs_handler() {}
|
|
FMT_CONSTEXPR test_format_specs_handler(
|
|
const test_format_specs_handler& other)
|
|
: res(other.res),
|
|
alignment(other.alignment),
|
|
fill(other.fill),
|
|
width(other.width),
|
|
width_ref(other.width_ref),
|
|
precision(other.precision),
|
|
precision_ref(other.precision_ref),
|
|
type(other.type) {}
|
|
|
|
FMT_CONSTEXPR void on_align(fmt::align_t a) { alignment = a; }
|
|
FMT_CONSTEXPR void on_fill(fmt::string_view f) { fill = f[0]; }
|
|
FMT_CONSTEXPR void on_plus() { res = PLUS; }
|
|
FMT_CONSTEXPR void on_minus() { res = MINUS; }
|
|
FMT_CONSTEXPR void on_space() { res = SPACE; }
|
|
FMT_CONSTEXPR void on_hash() { res = HASH; }
|
|
FMT_CONSTEXPR void on_zero() { res = ZERO; }
|
|
FMT_CONSTEXPR void on_localized() { res = LOC; }
|
|
|
|
FMT_CONSTEXPR void on_width(int w) { width = w; }
|
|
FMT_CONSTEXPR void on_dynamic_width(fmt::detail::auto_id) {}
|
|
FMT_CONSTEXPR void on_dynamic_width(int index) { width_ref = index; }
|
|
FMT_CONSTEXPR void on_dynamic_width(string_view) {}
|
|
|
|
FMT_CONSTEXPR void on_precision(int p) { precision = p; }
|
|
FMT_CONSTEXPR void on_dynamic_precision(fmt::detail::auto_id) {}
|
|
FMT_CONSTEXPR void on_dynamic_precision(int index) { precision_ref = index; }
|
|
FMT_CONSTEXPR void on_dynamic_precision(string_view) {}
|
|
|
|
FMT_CONSTEXPR void end_precision() {}
|
|
FMT_CONSTEXPR void on_type(char t) { type = t; }
|
|
FMT_CONSTEXPR void on_error(const char*) { res = ERROR; }
|
|
};
|
|
|
|
template <size_t N>
|
|
FMT_CONSTEXPR test_format_specs_handler parse_test_specs(const char (&s)[N]) {
|
|
test_format_specs_handler h;
|
|
fmt::detail::parse_format_specs(s, s + N, h);
|
|
return h;
|
|
}
|
|
|
|
TEST(FormatTest, ConstexprParseFormatSpecs) {
|
|
typedef test_format_specs_handler handler;
|
|
static_assert(parse_test_specs("<").alignment == fmt::align::left, "");
|
|
static_assert(parse_test_specs("*^").fill == '*', "");
|
|
static_assert(parse_test_specs("+").res == handler::PLUS, "");
|
|
static_assert(parse_test_specs("-").res == handler::MINUS, "");
|
|
static_assert(parse_test_specs(" ").res == handler::SPACE, "");
|
|
static_assert(parse_test_specs("#").res == handler::HASH, "");
|
|
static_assert(parse_test_specs("0").res == handler::ZERO, "");
|
|
static_assert(parse_test_specs("L").res == handler::LOC, "");
|
|
static_assert(parse_test_specs("42").width == 42, "");
|
|
static_assert(parse_test_specs("{42}").width_ref.val.index == 42, "");
|
|
static_assert(parse_test_specs(".42").precision == 42, "");
|
|
static_assert(parse_test_specs(".{42}").precision_ref.val.index == 42, "");
|
|
static_assert(parse_test_specs("d").type == 'd', "");
|
|
static_assert(parse_test_specs("{<").res == handler::ERROR, "");
|
|
}
|
|
|
|
struct test_parse_context {
|
|
typedef char char_type;
|
|
|
|
FMT_CONSTEXPR int next_arg_id() { return 11; }
|
|
template <typename Id> FMT_CONSTEXPR void check_arg_id(Id) {}
|
|
|
|
FMT_CONSTEXPR const char* begin() { return nullptr; }
|
|
FMT_CONSTEXPR const char* end() { return nullptr; }
|
|
|
|
void on_error(const char*) {}
|
|
};
|
|
|
|
struct test_context {
|
|
using char_type = char;
|
|
using format_arg = fmt::basic_format_arg<test_context>;
|
|
using parse_context_type = fmt::format_parse_context;
|
|
|
|
template <typename T> struct formatter_type {
|
|
typedef fmt::formatter<T, char_type> type;
|
|
};
|
|
|
|
template <typename Id>
|
|
FMT_CONSTEXPR fmt::basic_format_arg<test_context> arg(Id id) {
|
|
return fmt::detail::make_arg<test_context>(id);
|
|
}
|
|
|
|
void on_error(const char*) {}
|
|
|
|
FMT_CONSTEXPR test_context error_handler() { return *this; }
|
|
};
|
|
|
|
template <size_t N>
|
|
FMT_CONSTEXPR fmt::format_specs parse_specs(const char (&s)[N]) {
|
|
auto specs = fmt::format_specs();
|
|
auto parse_ctx = test_parse_context();
|
|
auto ctx = test_context();
|
|
fmt::detail::specs_handler<test_parse_context, test_context> h(
|
|
specs, parse_ctx, ctx);
|
|
parse_format_specs(s, s + N, h);
|
|
return specs;
|
|
}
|
|
|
|
TEST(FormatTest, ConstexprSpecsHandler) {
|
|
static_assert(parse_specs("<").align == fmt::align::left, "");
|
|
static_assert(parse_specs("*^").fill[0] == '*', "");
|
|
static_assert(parse_specs("+").sign == fmt::sign::plus, "");
|
|
static_assert(parse_specs("-").sign == fmt::sign::minus, "");
|
|
static_assert(parse_specs(" ").sign == fmt::sign::space, "");
|
|
static_assert(parse_specs("#").alt, "");
|
|
static_assert(parse_specs("0").align == fmt::align::numeric, "");
|
|
static_assert(parse_specs("42").width == 42, "");
|
|
static_assert(parse_specs("{}").width == 11, "");
|
|
static_assert(parse_specs("{22}").width == 22, "");
|
|
static_assert(parse_specs(".42").precision == 42, "");
|
|
static_assert(parse_specs(".{}").precision == 11, "");
|
|
static_assert(parse_specs(".{22}").precision == 22, "");
|
|
static_assert(parse_specs("d").type == 'd', "");
|
|
}
|
|
|
|
template <size_t N>
|
|
FMT_CONSTEXPR fmt::detail::dynamic_format_specs<char> parse_dynamic_specs(
|
|
const char (&s)[N]) {
|
|
fmt::detail::dynamic_format_specs<char> specs;
|
|
test_parse_context ctx{};
|
|
fmt::detail::dynamic_specs_handler<test_parse_context> h(specs, ctx);
|
|
parse_format_specs(s, s + N, h);
|
|
return specs;
|
|
}
|
|
|
|
TEST(FormatTest, ConstexprDynamicSpecsHandler) {
|
|
static_assert(parse_dynamic_specs("<").align == fmt::align::left, "");
|
|
static_assert(parse_dynamic_specs("*^").fill[0] == '*', "");
|
|
static_assert(parse_dynamic_specs("+").sign == fmt::sign::plus, "");
|
|
static_assert(parse_dynamic_specs("-").sign == fmt::sign::minus, "");
|
|
static_assert(parse_dynamic_specs(" ").sign == fmt::sign::space, "");
|
|
static_assert(parse_dynamic_specs("#").alt, "");
|
|
static_assert(parse_dynamic_specs("0").align == fmt::align::numeric, "");
|
|
static_assert(parse_dynamic_specs("42").width == 42, "");
|
|
static_assert(parse_dynamic_specs("{}").width_ref.val.index == 11, "");
|
|
static_assert(parse_dynamic_specs("{42}").width_ref.val.index == 42, "");
|
|
static_assert(parse_dynamic_specs(".42").precision == 42, "");
|
|
static_assert(parse_dynamic_specs(".{}").precision_ref.val.index == 11, "");
|
|
static_assert(parse_dynamic_specs(".{42}").precision_ref.val.index == 42, "");
|
|
static_assert(parse_dynamic_specs("d").type == 'd', "");
|
|
}
|
|
|
|
template <size_t N>
|
|
FMT_CONSTEXPR test_format_specs_handler check_specs(const char (&s)[N]) {
|
|
fmt::detail::specs_checker<test_format_specs_handler> checker(
|
|
test_format_specs_handler(), fmt::detail::type::double_type);
|
|
parse_format_specs(s, s + N, checker);
|
|
return checker;
|
|
}
|
|
|
|
TEST(FormatTest, ConstexprSpecsChecker) {
|
|
typedef test_format_specs_handler handler;
|
|
static_assert(check_specs("<").alignment == fmt::align::left, "");
|
|
static_assert(check_specs("*^").fill == '*', "");
|
|
static_assert(check_specs("+").res == handler::PLUS, "");
|
|
static_assert(check_specs("-").res == handler::MINUS, "");
|
|
static_assert(check_specs(" ").res == handler::SPACE, "");
|
|
static_assert(check_specs("#").res == handler::HASH, "");
|
|
static_assert(check_specs("0").res == handler::ZERO, "");
|
|
static_assert(check_specs("42").width == 42, "");
|
|
static_assert(check_specs("{42}").width_ref.val.index == 42, "");
|
|
static_assert(check_specs(".42").precision == 42, "");
|
|
static_assert(check_specs(".{42}").precision_ref.val.index == 42, "");
|
|
static_assert(check_specs("d").type == 'd', "");
|
|
static_assert(check_specs("{<").res == handler::ERROR, "");
|
|
}
|
|
|
|
struct test_format_string_handler {
|
|
FMT_CONSTEXPR void on_text(const char*, const char*) {}
|
|
|
|
FMT_CONSTEXPR int on_arg_id() { return 0; }
|
|
|
|
template <typename T> FMT_CONSTEXPR int on_arg_id(T) { return 0; }
|
|
|
|
FMT_CONSTEXPR void on_replacement_field(int, const char*) {}
|
|
|
|
FMT_CONSTEXPR const char* on_format_specs(int, const char* begin,
|
|
const char*) {
|
|
return begin;
|
|
}
|
|
|
|
FMT_CONSTEXPR void on_error(const char*) { error = true; }
|
|
|
|
bool error = false;
|
|
};
|
|
|
|
template <size_t N> FMT_CONSTEXPR bool parse_string(const char (&s)[N]) {
|
|
test_format_string_handler h;
|
|
fmt::detail::parse_format_string<true>(fmt::string_view(s, N - 1), h);
|
|
return !h.error;
|
|
}
|
|
|
|
TEST(FormatTest, ConstexprParseFormatString) {
|
|
static_assert(parse_string("foo"), "");
|
|
static_assert(!parse_string("}"), "");
|
|
static_assert(parse_string("{}"), "");
|
|
static_assert(parse_string("{42}"), "");
|
|
static_assert(parse_string("{foo}"), "");
|
|
static_assert(parse_string("{:}"), "");
|
|
}
|
|
|
|
struct test_error_handler {
|
|
const char*& error;
|
|
|
|
FMT_CONSTEXPR test_error_handler(const char*& err) : error(err) {}
|
|
|
|
FMT_CONSTEXPR test_error_handler(const test_error_handler& other)
|
|
: error(other.error) {}
|
|
|
|
FMT_CONSTEXPR void on_error(const char* message) {
|
|
if (!error) error = message;
|
|
}
|
|
};
|
|
|
|
FMT_CONSTEXPR size_t len(const char* s) {
|
|
size_t len = 0;
|
|
while (*s++) ++len;
|
|
return len;
|
|
}
|
|
|
|
FMT_CONSTEXPR bool equal(const char* s1, const char* s2) {
|
|
if (!s1 || !s2) return s1 == s2;
|
|
while (*s1 && *s1 == *s2) {
|
|
++s1;
|
|
++s2;
|
|
}
|
|
return *s1 == *s2;
|
|
}
|
|
|
|
template <typename... Args>
|
|
FMT_CONSTEXPR bool test_error(const char* fmt, const char* expected_error) {
|
|
const char* actual_error = nullptr;
|
|
string_view s(fmt, len(fmt));
|
|
fmt::detail::format_string_checker<char, test_error_handler, Args...> checker(
|
|
s, test_error_handler(actual_error));
|
|
fmt::detail::parse_format_string<true>(s, checker);
|
|
return equal(actual_error, expected_error);
|
|
}
|
|
|
|
# define EXPECT_ERROR_NOARGS(fmt, error) \
|
|
static_assert(test_error(fmt, error), "")
|
|
# define EXPECT_ERROR(fmt, error, ...) \
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static_assert(test_error<__VA_ARGS__>(fmt, error), "")
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TEST(FormatTest, FormatStringErrors) {
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EXPECT_ERROR_NOARGS("foo", nullptr);
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EXPECT_ERROR_NOARGS("}", "unmatched '}' in format string");
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EXPECT_ERROR("{0:s", "unknown format specifier", Date);
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# if !FMT_MSC_VER || FMT_MSC_VER >= 1916
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// This causes an detail compiler error in MSVC2017.
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EXPECT_ERROR("{:{<}", "invalid fill character '{'", int);
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EXPECT_ERROR("{:10000000000}", "number is too big", int);
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EXPECT_ERROR("{:.10000000000}", "number is too big", int);
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EXPECT_ERROR_NOARGS("{:x}", "argument not found");
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# if FMT_DEPRECATED_NUMERIC_ALIGN
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EXPECT_ERROR("{0:=5", "unknown format specifier", int);
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EXPECT_ERROR("{:=}", "format specifier requires numeric argument",
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const char*);
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# endif
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EXPECT_ERROR("{:+}", "format specifier requires numeric argument",
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const char*);
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EXPECT_ERROR("{:-}", "format specifier requires numeric argument",
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const char*);
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EXPECT_ERROR("{:#}", "format specifier requires numeric argument",
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const char*);
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EXPECT_ERROR("{: }", "format specifier requires numeric argument",
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const char*);
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EXPECT_ERROR("{:0}", "format specifier requires numeric argument",
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const char*);
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EXPECT_ERROR("{:+}", "format specifier requires signed argument", unsigned);
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EXPECT_ERROR("{:-}", "format specifier requires signed argument", unsigned);
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EXPECT_ERROR("{: }", "format specifier requires signed argument", unsigned);
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EXPECT_ERROR("{:{}}", "argument not found", int);
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EXPECT_ERROR("{:.{}}", "argument not found", double);
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EXPECT_ERROR("{:.2}", "precision not allowed for this argument type", int);
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EXPECT_ERROR("{:s}", "invalid type specifier", int);
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EXPECT_ERROR("{:s}", "invalid type specifier", char);
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EXPECT_ERROR("{:+}", "invalid format specifier for char", char);
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EXPECT_ERROR("{:s}", "invalid type specifier", double);
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EXPECT_ERROR("{:d}", "invalid type specifier", const char*);
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EXPECT_ERROR("{:d}", "invalid type specifier", std::string);
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EXPECT_ERROR("{:s}", "invalid type specifier", void*);
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# else
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fmt::print("warning: constexpr is broken in this version of MSVC\n");
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# endif
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EXPECT_ERROR("{foo", "compile-time checks don't support named arguments",
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int);
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EXPECT_ERROR_NOARGS("{10000000000}", "number is too big");
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EXPECT_ERROR_NOARGS("{0x}", "invalid format string");
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EXPECT_ERROR_NOARGS("{-}", "invalid format string");
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EXPECT_ERROR("{:{0x}}", "invalid format string", int);
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EXPECT_ERROR("{:{-}}", "invalid format string", int);
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EXPECT_ERROR("{:.{0x}}", "invalid format string", int);
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EXPECT_ERROR("{:.{-}}", "invalid format string", int);
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EXPECT_ERROR("{:.x}", "missing precision specifier", int);
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EXPECT_ERROR_NOARGS("{}", "argument not found");
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EXPECT_ERROR("{1}", "argument not found", int);
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EXPECT_ERROR("{1}{}",
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"cannot switch from manual to automatic argument indexing", int,
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int);
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EXPECT_ERROR("{}{1}",
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"cannot switch from automatic to manual argument indexing", int,
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int);
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}
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TEST(FormatTest, VFormatTo) {
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typedef fmt::format_context context;
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fmt::basic_format_arg<context> arg = fmt::detail::make_arg<context>(42);
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fmt::basic_format_args<context> args(&arg, 1);
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std::string s;
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fmt::vformat_to(std::back_inserter(s), "{}", args);
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EXPECT_EQ("42", s);
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s.clear();
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fmt::vformat_to(std::back_inserter(s), FMT_STRING("{}"), args);
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EXPECT_EQ("42", s);
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typedef fmt::wformat_context wcontext;
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fmt::basic_format_arg<wcontext> warg = fmt::detail::make_arg<wcontext>(42);
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fmt::basic_format_args<wcontext> wargs(&warg, 1);
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std::wstring w;
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fmt::vformat_to(std::back_inserter(w), L"{}", wargs);
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EXPECT_EQ(L"42", w);
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w.clear();
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fmt::vformat_to(std::back_inserter(w), FMT_STRING(L"{}"), wargs);
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EXPECT_EQ(L"42", w);
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}
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template <typename T> static std::string FmtToString(const T& t) {
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return fmt::format(FMT_STRING("{}"), t);
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}
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TEST(FormatTest, FmtStringInTemplate) {
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EXPECT_EQ(FmtToString(1), "1");
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EXPECT_EQ(FmtToString(0), "0");
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}
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#endif // FMT_USE_CONSTEXPR
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TEST(FormatTest, CharTraitsIsNotAmbiguous) {
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// Test that we don't inject detail names into the std namespace.
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using namespace std;
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char_traits<char>::char_type c;
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(void)c;
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#if __cplusplus >= 201103L
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std::string s;
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auto lval = begin(s);
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(void)lval;
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#endif
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}
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#if __cplusplus > 201103L
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struct custom_char {
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int value;
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custom_char() = default;
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template <typename T>
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constexpr custom_char(T val) : value(static_cast<int>(val)) {}
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operator int() const { return value; }
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};
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int to_ascii(custom_char c) { return c; }
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FMT_BEGIN_NAMESPACE
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template <> struct is_char<custom_char> : std::true_type {};
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FMT_END_NAMESPACE
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TEST(FormatTest, FormatCustomChar) {
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const custom_char format[] = {'{', '}', 0};
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auto result = fmt::format(format, custom_char('x'));
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EXPECT_EQ(result.size(), 1);
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EXPECT_EQ(result[0], custom_char('x'));
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}
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#endif
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|
|
// Convert a char8_t string to std::string. Otherwise GTest will insist on
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// inserting `char8_t` NTBS into a `char` stream which is disabled by P1423.
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template <typename S> std::string from_u8str(const S& str) {
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return std::string(str.begin(), str.end());
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}
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TEST(FormatTest, FormatUTF8Precision) {
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using str_type = std::basic_string<fmt::detail::char8_type>;
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str_type format(reinterpret_cast<const fmt::detail::char8_type*>(u8"{:.4}"));
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str_type str(reinterpret_cast<const fmt::detail::char8_type*>(
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u8"caf\u00e9s")); // cafés
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auto result = fmt::format(format, str);
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EXPECT_EQ(fmt::detail::compute_width(result), 4);
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EXPECT_EQ(result.size(), 5);
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EXPECT_EQ(from_u8str(result), from_u8str(str.substr(0, 5)));
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}
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|
|
struct check_back_appender {};
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|
|
FMT_BEGIN_NAMESPACE
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template <> struct formatter<check_back_appender> {
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|
template <typename ParseContext>
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|
auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
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return ctx.begin();
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|
}
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|
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template <typename Context>
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|
auto format(check_back_appender, Context& ctx) -> decltype(ctx.out()) {
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auto out = ctx.out();
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static_assert(std::is_same<decltype(++out), decltype(out)&>::value,
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|
"needs to satisfy weakly_incrementable");
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|
*out = 'y';
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return ++out;
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}
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|
};
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|
FMT_END_NAMESPACE
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|
|
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TEST(FormatTest, BackInsertSlicing) {
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|
EXPECT_EQ(fmt::format("{}", check_back_appender{}), "y");
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|
}
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