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Clean core-test and fix linkage errors on older gcc

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This commit is contained in:
Victor Zverovich 2018-09-19 08:55:45 -07:00
parent d43665056d
commit 3f4984fb36
8 changed files with 636 additions and 607 deletions
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48
include/fmt/core.h
View File

@ -755,6 +755,54 @@ class basic_format_arg {
bool is_arithmetic() const { return internal::is_arithmetic(type_); }
};
struct monostate {};
/**
\rst
Visits an argument dispatching to the appropriate visit method based on
the argument type. For example, if the argument type is ``double`` then
``vis(value)`` will be called with the value of type ``double``.
\endrst
*/
template <typename Visitor, typename Context>
FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type
visit(Visitor &&vis, const basic_format_arg<Context> &arg) {
typedef typename Context::char_type char_type;
switch (arg.type_) {
case internal::none_type:
break;
case internal::named_arg_type:
FMT_ASSERT(false, "invalid argument type");
break;
case internal::int_type:
return vis(arg.value_.int_value);
case internal::uint_type:
return vis(arg.value_.uint_value);
case internal::long_long_type:
return vis(arg.value_.long_long_value);
case internal::ulong_long_type:
return vis(arg.value_.ulong_long_value);
case internal::bool_type:
return vis(arg.value_.int_value != 0);
case internal::char_type:
return vis(static_cast<char_type>(arg.value_.int_value));
case internal::double_type:
return vis(arg.value_.double_value);
case internal::long_double_type:
return vis(arg.value_.long_double_value);
case internal::cstring_type:
return vis(arg.value_.string.value);
case internal::string_type:
return vis(basic_string_view<char_type>(
arg.value_.string.value, arg.value_.string.size));
case internal::pointer_type:
return vis(arg.value_.pointer);
case internal::custom_type:
return vis(typename basic_format_arg<Context>::handle(arg.value_.custom));
}
return vis(monostate());
}
// Parsing context consisting of a format string range being parsed and an
// argument counter for automatic indexing.
template <typename Char, typename ErrorHandler = internal::error_handler>

48
include/fmt/format.h
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@ -1154,54 +1154,6 @@ template <typename T = void>
struct null {};
} // namespace internal
struct monostate {};
/**
\rst
Visits an argument dispatching to the appropriate visit method based on
the argument type. For example, if the argument type is ``double`` then
``vis(value)`` will be called with the value of type ``double``.
\endrst
*/
template <typename Visitor, typename Context>
FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type
visit(Visitor &&vis, const basic_format_arg<Context> &arg) {
typedef typename Context::char_type char_type;
switch (arg.type_) {
case internal::none_type:
break;
case internal::named_arg_type:
FMT_ASSERT(false, "invalid argument type");
break;
case internal::int_type:
return vis(arg.value_.int_value);
case internal::uint_type:
return vis(arg.value_.uint_value);
case internal::long_long_type:
return vis(arg.value_.long_long_value);
case internal::ulong_long_type:
return vis(arg.value_.ulong_long_value);
case internal::bool_type:
return vis(arg.value_.int_value != 0);
case internal::char_type:
return vis(static_cast<char_type>(arg.value_.int_value));
case internal::double_type:
return vis(arg.value_.double_value);
case internal::long_double_type:
return vis(arg.value_.long_double_value);
case internal::cstring_type:
return vis(arg.value_.string.value);
case internal::string_type:
return vis(basic_string_view<char_type>(
arg.value_.string.value, arg.value_.string.size));
case internal::pointer_type:
return vis(arg.value_.pointer);
case internal::custom_type:
return vis(typename basic_format_arg<Context>::handle(arg.value_.custom));
}
return vis(monostate());
}
enum alignment {
ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC
};

27
src/format.cc
View File

@ -14,33 +14,40 @@ template struct internal::basic_data<void>;
template FMT_API char internal::thousands_sep(locale_provider *lp);
template void internal::basic_buffer<char>::append(const char *, const char *);
template void basic_fixed_buffer<char>::grow(std::size_t);
template void internal::arg_map<format_context>::init(
const basic_format_args<format_context> &args);
template FMT_API int internal::char_traits<char>::format_float(
char *buffer, std::size_t size, const char *format, int precision,
double value);
char *, std::size_t, const char *, int, double);
template FMT_API int internal::char_traits<char>::format_float(
char *buffer, std::size_t size, const char *format, int precision,
long double value);
char *, std::size_t, const char *, int, long double);
template FMT_API std::string internal::vformat<char>(
string_view, basic_format_args<format_context>);
// Explicit instantiations for wchar_t.
template FMT_API wchar_t internal::thousands_sep(locale_provider *lp);
template FMT_API wchar_t internal::thousands_sep(locale_provider *);
template void internal::basic_buffer<wchar_t>::append(
const wchar_t *, const wchar_t *);
template void basic_fixed_buffer<wchar_t>::grow(std::size_t);
template void internal::arg_map<wformat_context>::init(
const basic_format_args<wformat_context> &args);
const basic_format_args<wformat_context> &);
template FMT_API int internal::char_traits<wchar_t>::format_float(
wchar_t *buffer, std::size_t size, const wchar_t *format,
int precision, double value);
wchar_t *, std::size_t, const wchar_t *, int, double);
template FMT_API int internal::char_traits<wchar_t>::format_float(
wchar_t *buffer, std::size_t size, const wchar_t *format,
int precision, long double value);
wchar_t *, std::size_t, const wchar_t *, int, long double);
template FMT_API std::wstring internal::vformat<wchar_t>(
wstring_view, basic_format_args<wformat_context>);
FMT_END_NAMESPACE

4
test/CMakeLists.txt
View File

@ -85,9 +85,9 @@ function(add_fmt_test name)
endfunction()
add_fmt_test(assert-test)
add_fmt_test(core-test mock-allocator.h)
add_fmt_test(core-test)
add_fmt_test(gtest-extra-test)
add_fmt_test(format-test)
add_fmt_test(format-test mock-allocator.h)
add_fmt_test(format-impl-test)
add_fmt_test(ostream-test)
add_fmt_test(printf-test)

623
test/core-test.cc
View File

@ -1,28 +1,24 @@
// Formatting library for C++ - utility tests
// Formatting library for C++ - core tests
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#include "test-assert.h"
#include <cfloat>
#include <algorithm>
#include <climits>
#include <cstring>
#include <functional>
#include <iterator>
#include <limits>
#include <string>
#include <type_traits>
#if FMT_USE_TYPE_TRAITS
# include <type_traits>
#endif
#include "test-assert.h"
#include "gmock.h"
#include "gtest-extra.h"
#include "mock-allocator.h"
#include "util.h"
// Check if format.h compiles with windows.h included.
// Check if fmt/core.h compiles with windows.h included before it.
#ifdef _WIN32
# include <windows.h>
#endif
@ -34,17 +30,15 @@
using fmt::basic_format_arg;
using fmt::internal::basic_buffer;
using fmt::basic_memory_buffer;
using fmt::string_view;
using fmt::internal::value;
using fmt::string_view;
using testing::_;
using testing::Return;
using testing::StrictMock;
namespace {
struct Test {};
struct test_struct {};
template <typename Context, typename T>
basic_format_arg<Context> make_arg(const T &value) {
@ -54,7 +48,7 @@ basic_format_arg<Context> make_arg(const T &value) {
FMT_BEGIN_NAMESPACE
template <typename Char>
struct formatter<Test, Char> {
struct formatter<test_struct, Char> {
template <typename ParseContext>
auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
return ctx.begin();
@ -62,7 +56,7 @@ struct formatter<Test, Char> {
typedef std::back_insert_iterator<basic_buffer<Char>> iterator;
auto format(Test, basic_format_context<iterator, char> &ctx)
auto format(test_struct, basic_format_context<iterator, char> &ctx)
-> decltype(ctx.out()) {
const Char *test = "test";
return std::copy_n(test, std::strlen(test), ctx.out());
@ -70,52 +64,30 @@ struct formatter<Test, Char> {
};
FMT_END_NAMESPACE
static void CheckForwarding(
MockAllocator<int> &alloc, AllocatorRef<MockAllocator<int>> &ref) {
int mem;
// Check if value_type is properly defined.
AllocatorRef< MockAllocator<int> >::value_type *ptr = &mem;
// Check forwarding.
EXPECT_CALL(alloc, allocate(42)).WillOnce(Return(ptr));
ref.allocate(42);
EXPECT_CALL(alloc, deallocate(ptr, 42));
ref.deallocate(ptr, 42);
}
TEST(AllocatorTest, AllocatorRef) {
StrictMock< MockAllocator<int> > alloc;
typedef AllocatorRef< MockAllocator<int> > TestAllocatorRef;
TestAllocatorRef ref(&alloc);
// Check if AllocatorRef forwards to the underlying allocator.
CheckForwarding(alloc, ref);
TestAllocatorRef ref2(ref);
CheckForwarding(alloc, ref2);
TestAllocatorRef ref3;
EXPECT_EQ(nullptr, ref3.get());
ref3 = ref;
CheckForwarding(alloc, ref3);
}
#if FMT_USE_TYPE_TRAITS
TEST(BufferTest, Noncopyable) {
EXPECT_FALSE(std::is_copy_constructible<basic_buffer<char> >::value);
#if !FMT_MSC_VER
// std::is_copy_assignable is broken in MSVC2013.
EXPECT_FALSE(std::is_copy_assignable<basic_buffer<char> >::value);
#endif
}
TEST(BufferTest, Nonmoveable) {
EXPECT_FALSE(std::is_move_constructible<basic_buffer<char> >::value);
#if !FMT_MSC_VER
// std::is_move_assignable is broken in MSVC2013.
EXPECT_FALSE(std::is_move_assignable<basic_buffer<char> >::value);
}
#endif
}
// A test buffer with a dummy grow method.
template <typename T>
struct TestBuffer : basic_buffer<T> {
struct test_buffer : basic_buffer<T> {
void grow(std::size_t capacity) { this->set(nullptr, capacity); }
};
template <typename T>
struct MockBuffer : basic_buffer<T> {
struct mock_buffer : basic_buffer<T> {
MOCK_METHOD1(do_grow, void (std::size_t capacity));
void grow(std::size_t capacity) {
@ -123,21 +95,21 @@ struct MockBuffer : basic_buffer<T> {
do_grow(capacity);
}
MockBuffer() {}
MockBuffer(T *data) { this->set(data, 0); }
MockBuffer(T *data, std::size_t capacity) { this->set(data, capacity); }
mock_buffer() {}
mock_buffer(T *data) { this->set(data, 0); }
mock_buffer(T *data, std::size_t capacity) { this->set(data, capacity); }
};
TEST(BufferTest, Ctor) {
{
MockBuffer<int> buffer;
mock_buffer<int> buffer;
EXPECT_EQ(nullptr, &buffer[0]);
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(static_cast<size_t>(0), buffer.capacity());
}
{
int dummy;
MockBuffer<int> buffer(&dummy);
mock_buffer<int> buffer(&dummy);
EXPECT_EQ(&dummy, &buffer[0]);
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(static_cast<size_t>(0), buffer.capacity());
@ -145,21 +117,21 @@ TEST(BufferTest, Ctor) {
{
int dummy;
std::size_t capacity = std::numeric_limits<std::size_t>::max();
MockBuffer<int> buffer(&dummy, capacity);
mock_buffer<int> buffer(&dummy, capacity);
EXPECT_EQ(&dummy, &buffer[0]);
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(capacity, buffer.capacity());
}
}
struct DyingBuffer : TestBuffer<int> {
struct dying_buffer : test_buffer<int> {
MOCK_METHOD0(die, void());
~DyingBuffer() { die(); }
~dying_buffer() { die(); }
};
TEST(BufferTest, VirtualDtor) {
typedef StrictMock<DyingBuffer> StictMockBuffer;
StictMockBuffer *mock_buffer = new StictMockBuffer();
typedef StrictMock<dying_buffer> stict_mock_buffer;
stict_mock_buffer *mock_buffer = new stict_mock_buffer();
EXPECT_CALL(*mock_buffer, die());
basic_buffer<int> *buffer = mock_buffer;
delete buffer;
@ -167,7 +139,7 @@ TEST(BufferTest, VirtualDtor) {
TEST(BufferTest, Access) {
char data[10];
MockBuffer<char> buffer(data, sizeof(data));
mock_buffer<char> buffer(data, sizeof(data));
buffer[0] = 11;
EXPECT_EQ(11, buffer[0]);
buffer[3] = 42;
@ -178,7 +150,7 @@ TEST(BufferTest, Access) {
TEST(BufferTest, Resize) {
char data[123];
MockBuffer<char> buffer(data, sizeof(data));
mock_buffer<char> buffer(data, sizeof(data));
buffer[10] = 42;
EXPECT_EQ(42, buffer[10]);
buffer.resize(20);
@ -197,7 +169,7 @@ TEST(BufferTest, Resize) {
}
TEST(BufferTest, Clear) {
TestBuffer<char> buffer;
test_buffer<char> buffer;
buffer.resize(20);
buffer.resize(0);
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
@ -206,7 +178,7 @@ TEST(BufferTest, Clear) {
TEST(BufferTest, Append) {
char data[15];
MockBuffer<char> buffer(data, 10);
mock_buffer<char> buffer(data, 10);
const char *test = "test";
buffer.append(test, test + 5);
EXPECT_STREQ(test, &buffer[0]);
@ -221,202 +193,14 @@ TEST(BufferTest, Append) {
TEST(BufferTest, AppendAllocatesEnoughStorage) {
char data[19];
MockBuffer<char> buffer(data, 10);
mock_buffer<char> buffer(data, 10);
const char *test = "abcdefgh";
buffer.resize(10);
EXPECT_CALL(buffer, do_grow(19));
buffer.append(test, test + 9);
}
TEST(MemoryBufferTest, Ctor) {
basic_memory_buffer<char, 123> buffer;
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(123u, buffer.capacity());
}
typedef AllocatorRef< std::allocator<char> > TestAllocator;
static void check_move_buffer(const char *str,
basic_memory_buffer<char, 5, TestAllocator> &buffer) {
std::allocator<char> *alloc = buffer.get_allocator().get();
basic_memory_buffer<char, 5, TestAllocator> buffer2(std::move(buffer));
// Move shouldn't destroy the inline content of the first buffer.
EXPECT_EQ(str, std::string(&buffer[0], buffer.size()));
EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size()));
EXPECT_EQ(5u, buffer2.capacity());
// Move should transfer allocator.
EXPECT_EQ(nullptr, buffer.get_allocator().get());
EXPECT_EQ(alloc, buffer2.get_allocator().get());
}
TEST(MemoryBufferTest, MoveCtor) {
std::allocator<char> alloc;
basic_memory_buffer<char, 5, TestAllocator> buffer((TestAllocator(&alloc)));
const char test[] = "test";
buffer.append(test, test + 4);
check_move_buffer("test", buffer);
// Adding one more character fills the inline buffer, but doesn't cause
// dynamic allocation.
buffer.push_back('a');
check_move_buffer("testa", buffer);
const char *inline_buffer_ptr = &buffer[0];
// Adding one more character causes the content to move from the inline to
// a dynamically allocated buffer.
buffer.push_back('b');
basic_memory_buffer<char, 5, TestAllocator> buffer2(std::move(buffer));
// Move should rip the guts of the first buffer.
EXPECT_EQ(inline_buffer_ptr, &buffer[0]);
EXPECT_EQ("testab", std::string(&buffer2[0], buffer2.size()));
EXPECT_GT(buffer2.capacity(), 5u);
}
static void check_move_assign_buffer(
const char *str, basic_memory_buffer<char, 5> &buffer) {
basic_memory_buffer<char, 5> buffer2;
buffer2 = std::move(buffer);
// Move shouldn't destroy the inline content of the first buffer.
EXPECT_EQ(str, std::string(&buffer[0], buffer.size()));
EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size()));
EXPECT_EQ(5u, buffer2.capacity());
}
TEST(MemoryBufferTest, MoveAssignment) {
basic_memory_buffer<char, 5> buffer;
const char test[] = "test";
buffer.append(test, test + 4);
check_move_assign_buffer("test", buffer);
// Adding one more character fills the inline buffer, but doesn't cause
// dynamic allocation.
buffer.push_back('a');
check_move_assign_buffer("testa", buffer);
const char *inline_buffer_ptr = &buffer[0];
// Adding one more character causes the content to move from the inline to
// a dynamically allocated buffer.
buffer.push_back('b');
basic_memory_buffer<char, 5> buffer2;
buffer2 = std::move(buffer);
// Move should rip the guts of the first buffer.
EXPECT_EQ(inline_buffer_ptr, &buffer[0]);
EXPECT_EQ("testab", std::string(&buffer2[0], buffer2.size()));
EXPECT_GT(buffer2.capacity(), 5u);
}
TEST(MemoryBufferTest, Grow) {
typedef AllocatorRef< MockAllocator<int> > Allocator;
typedef basic_memory_buffer<int, 10, Allocator> Base;
MockAllocator<int> alloc;
struct TestMemoryBuffer : Base {
TestMemoryBuffer(Allocator alloc) : Base(alloc) {}
void grow(std::size_t size) { Base::grow(size); }
} buffer((Allocator(&alloc)));
buffer.resize(7);
using fmt::internal::to_unsigned;
for (int i = 0; i < 7; ++i)
buffer[to_unsigned(i)] = i * i;
EXPECT_EQ(10u, buffer.capacity());
int mem[20];
mem[7] = 0xdead;
EXPECT_CALL(alloc, allocate(20)).WillOnce(Return(mem));
buffer.grow(20);
EXPECT_EQ(20u, buffer.capacity());
// Check if size elements have been copied
for (int i = 0; i < 7; ++i)
EXPECT_EQ(i * i, buffer[to_unsigned(i)]);
// and no more than that.
EXPECT_EQ(0xdead, buffer[7]);
EXPECT_CALL(alloc, deallocate(mem, 20));
}
TEST(MemoryBufferTest, Allocator) {
typedef AllocatorRef< MockAllocator<char> > TestAllocator;
basic_memory_buffer<char, 10, TestAllocator> buffer;
EXPECT_EQ(nullptr, buffer.get_allocator().get());
StrictMock< MockAllocator<char> > alloc;
char mem;
{
basic_memory_buffer<char, 10, TestAllocator> buffer2((TestAllocator(&alloc)));
EXPECT_EQ(&alloc, buffer2.get_allocator().get());
std::size_t size = 2 * fmt::inline_buffer_size;
EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem));
buffer2.reserve(size);
EXPECT_CALL(alloc, deallocate(&mem, size));
}
}
TEST(MemoryBufferTest, ExceptionInDeallocate) {
typedef AllocatorRef< MockAllocator<char> > TestAllocator;
StrictMock< MockAllocator<char> > alloc;
basic_memory_buffer<char, 10, TestAllocator> buffer((TestAllocator(&alloc)));
std::size_t size = 2 * fmt::inline_buffer_size;
std::vector<char> mem(size);
{
EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem[0]));
buffer.resize(size);
std::fill(&buffer[0], &buffer[0] + size, 'x');
}
std::vector<char> mem2(2 * size);
{
EXPECT_CALL(alloc, allocate(2 * size)).WillOnce(Return(&mem2[0]));
std::exception e;
EXPECT_CALL(alloc, deallocate(&mem[0], size)).WillOnce(testing::Throw(e));
EXPECT_THROW(buffer.reserve(2 * size), std::exception);
EXPECT_EQ(&mem2[0], &buffer[0]);
// Check that the data has been copied.
for (std::size_t i = 0; i < size; ++i)
EXPECT_EQ('x', buffer[i]);
}
EXPECT_CALL(alloc, deallocate(&mem2[0], 2 * size));
}
TEST(FixedBufferTest, Ctor) {
char array[10] = "garbage";
fmt::basic_fixed_buffer<char> buffer(array, sizeof(array));
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(10u, buffer.capacity());
EXPECT_EQ(array, buffer.data());
}
TEST(FixedBufferTest, CompileTimeSizeCtor) {
char array[10] = "garbage";
fmt::basic_fixed_buffer<char> buffer(array);
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(10u, buffer.capacity());
EXPECT_EQ(array, buffer.data());
}
TEST(FixedBufferTest, BufferOverflow) {
char array[10];
fmt::basic_fixed_buffer<char> buffer(array);
buffer.resize(10);
EXPECT_THROW_MSG(buffer.resize(11), std::runtime_error, "buffer overflow");
}
struct uint32_pair {
uint32_t u[2];
};
TEST(UtilTest, BitCast) {
auto s = fmt::internal::bit_cast<uint32_pair>(uint64_t{42});
EXPECT_EQ(fmt::internal::bit_cast<uint64_t>(s), 42ull);
s = fmt::internal::bit_cast<uint32_pair>(uint64_t(~0ull));
EXPECT_EQ(fmt::internal::bit_cast<uint64_t>(s), ~0ull);
}
TEST(UtilTest, Increment) {
char s[10] = "123";
increment(s);
EXPECT_STREQ("124", s);
s[2] = '8';
increment(s);
EXPECT_STREQ("129", s);
increment(s);
EXPECT_STREQ("130", s);
s[1] = s[2] = '9';
increment(s);
EXPECT_STREQ("200", s);
}
TEST(UtilTest, FormatArgs) {
TEST(ArgTest, FormatArgs) {
fmt::format_args args;
EXPECT_FALSE(args.get(1));
}
@ -445,8 +229,8 @@ struct custom_context {
void advance_to(const char *) {}
};
TEST(UtilTest, MakeValueWithCustomFormatter) {
::Test t;
TEST(ArgTest, MakeValueWithCustomContext) {
test_struct t;
fmt::internal::value<custom_context> arg =
fmt::internal::make_value<custom_context>(t);
custom_context ctx = {false};
@ -456,7 +240,6 @@ TEST(UtilTest, MakeValueWithCustomFormatter) {
FMT_BEGIN_NAMESPACE
namespace internal {
template <typename Char>
bool operator==(custom_value<Char> lhs, custom_value<Char> rhs) {
return lhs.value == rhs.value;
@ -466,32 +249,35 @@ FMT_END_NAMESPACE
// Use a unique result type to make sure that there are no undesirable
// conversions.
struct Result {};
struct test_result {};
template <typename T>
struct MockVisitor: fmt::internal::function<Result> {
MockVisitor() {
ON_CALL(*this, visit(_)).WillByDefault(Return(Result()));
struct mock_visitor {
template <typename U>
struct result { typedef test_result type; };
mock_visitor() {
ON_CALL(*this, visit(_)).WillByDefault(testing::Return(test_result()));
}
MOCK_METHOD1_T(visit, Result (T value));
MOCK_METHOD1_T(visit, test_result (T value));
MOCK_METHOD0_T(unexpected, void ());
Result operator()(T value) { return visit(value); }
test_result operator()(T value) { return visit(value); }
template <typename U>
Result operator()(U) {
test_result operator()(U) {
unexpected();
return Result();
return test_result();
}
};
template <typename T>
struct VisitType { typedef T Type; };
struct visit_type { typedef T Type; };
#define VISIT_TYPE(Type_, VisitType_) \
#define VISIT_TYPE(Type_, visit_type_) \
template <> \
struct VisitType<Type_> { typedef VisitType_ Type; }
struct visit_type<Type_> { typedef visit_type_ Type; }
VISIT_TYPE(signed char, int);
VISIT_TYPE(unsigned char, unsigned);
@ -509,7 +295,7 @@ VISIT_TYPE(unsigned long, unsigned long long);
VISIT_TYPE(float, double);
#define CHECK_ARG_(Char, expected, value) { \
testing::StrictMock<MockVisitor<decltype(expected)>> visitor; \
testing::StrictMock<mock_visitor<decltype(expected)>> visitor; \
EXPECT_CALL(visitor, visit(expected)); \
typedef std::back_insert_iterator<basic_buffer<Char>> iterator; \
fmt::visit(visitor, \
@ -518,7 +304,7 @@ VISIT_TYPE(float, double);
#define CHECK_ARG(value, typename_) { \
typedef decltype(value) value_type; \
typename_ VisitType<value_type>::Type expected = value; \
typename_ visit_type<value_type>::Type expected = value; \
CHECK_ARG_(char, expected, value) \
CHECK_ARG_(wchar_t, expected, value) \
}
@ -549,13 +335,13 @@ TYPED_TEST(NumericArgTest, MakeAndVisit) {
CHECK_ARG(std::numeric_limits<TypeParam>::max(), typename);
}
TEST(UtilTest, CharArg) {
TEST(ArgTest, CharArg) {
CHECK_ARG_(char, 'a', 'a');
CHECK_ARG_(wchar_t, L'a', 'a');
CHECK_ARG_(wchar_t, L'a', L'a');
}
TEST(UtilTest, StringArg) {
TEST(ArgTest, StringArg) {
char str_data[] = "test";
char *str = str_data;
const char *cstr = str;
@ -565,7 +351,7 @@ TEST(UtilTest, StringArg) {
CHECK_ARG_(char, sref, std::string(str));
}
TEST(UtilTest, WStringArg) {
TEST(ArgTest, WStringArg) {
wchar_t str_data[] = L"test";
wchar_t *str = str_data;
const wchar_t *cstr = str;
@ -577,7 +363,7 @@ TEST(UtilTest, WStringArg) {
CHECK_ARG_(wchar_t, sref, fmt::wstring_view(str));
}
TEST(UtilTest, PointerArg) {
TEST(ArgTest, PointerArg) {
void *p = nullptr;
const void *cp = nullptr;
CHECK_ARG_(char, cp, p);
@ -586,56 +372,48 @@ TEST(UtilTest, PointerArg) {
}
struct check_custom {
Result operator()(fmt::basic_format_arg<fmt::format_context>::handle h) const {
fmt::memory_buffer buffer;
test_result operator()(
fmt::basic_format_arg<fmt::format_context>::handle h) const {
struct test_buffer : fmt::internal::basic_buffer<char> {
char data[10];
test_buffer() : basic_buffer(data, 0, 10) {}
void grow(std::size_t) {}
} buffer;
fmt::internal::basic_buffer<char> &base = buffer;
fmt::format_context ctx(std::back_inserter(base), "", fmt::format_args());
h.format(ctx);
EXPECT_EQ("test", std::string(buffer.data(), buffer.size()));
return Result();
EXPECT_EQ("test", std::string(buffer.data, buffer.size()));
return test_result();
}
};
TEST(UtilTest, CustomArg) {
::Test test;
typedef MockVisitor<fmt::basic_format_arg<fmt::format_context>::handle>
TEST(ArgTest, CustomArg) {
test_struct test;
typedef mock_visitor<fmt::basic_format_arg<fmt::format_context>::handle>
visitor;
testing::StrictMock<visitor> v;
EXPECT_CALL(v, visit(_)).WillOnce(testing::Invoke(check_custom()));
fmt::visit(v, make_arg<fmt::format_context>(test));
}
TEST(ArgVisitorTest, VisitInvalidArg) {
typedef MockVisitor<fmt::monostate> Visitor;
TEST(ArgTest, VisitInvalidArg) {
typedef mock_visitor<fmt::monostate> Visitor;
testing::StrictMock<Visitor> visitor;
EXPECT_CALL(visitor, visit(_));
fmt::basic_format_arg<fmt::format_context> arg;
visit(visitor, arg);
}
// Tests fmt::internal::count_digits for integer type Int.
template <typename Int>
void test_count_digits() {
for (Int i = 0; i < 10; ++i)
EXPECT_EQ(1u, fmt::internal::count_digits(i));
for (Int i = 1, n = 1,
end = std::numeric_limits<Int>::max() / 10; n <= end; ++i) {
n *= 10;
EXPECT_EQ(i, fmt::internal::count_digits(n - 1));
EXPECT_EQ(i + 1, fmt::internal::count_digits(n));
}
}
TEST(UtilTest, StringRef) {
TEST(StringViewTest, Length) {
// Test that StringRef::size() returns string length, not buffer size.
char str[100] = "some string";
EXPECT_EQ(std::strlen(str), string_view(str).size());
EXPECT_LT(std::strlen(str), sizeof(str));
}
// Check StringRef's comparison operator.
// Check string_view's comparison operator.
template <template <typename> class Op>
void CheckOp() {
void check_op() {
const char *inputs[] = {"foo", "fop", "fo"};
std::size_t num_inputs = sizeof(inputs) / sizeof(*inputs);
for (std::size_t i = 0; i < num_inputs; ++i) {
@ -646,249 +424,38 @@ void CheckOp() {
}
}
TEST(UtilTest, StringRefCompare) {
EXPECT_EQ(0, string_view("foo").compare(string_view("foo")));
TEST(StringViewTest, Compare) {
EXPECT_EQ(string_view("foo").compare(string_view("foo")), 0);
EXPECT_GT(string_view("fop").compare(string_view("foo")), 0);
EXPECT_LT(string_view("foo").compare(string_view("fop")), 0);
EXPECT_GT(string_view("foo").compare(string_view("fo")), 0);
EXPECT_LT(string_view("fo").compare(string_view("foo")), 0);
CheckOp<std::equal_to>();
CheckOp<std::not_equal_to>();
CheckOp<std::less>();
CheckOp<std::less_equal>();
CheckOp<std::greater>();
CheckOp<std::greater_equal>();
check_op<std::equal_to>();
check_op<std::not_equal_to>();
check_op<std::less>();
check_op<std::less_equal>();
check_op<std::greater>();
check_op<std::greater_equal>();
}
TEST(UtilTest, CountDigits) {
test_count_digits<uint32_t>();
test_count_digits<uint64_t>();
}
enum basic_enum {};
#ifdef _WIN32
TEST(UtilTest, UTF16ToUTF8) {
std::string s = "ёжик";
fmt::internal::utf16_to_utf8 u(L"\x0451\x0436\x0438\x043A");
EXPECT_EQ(s, u.str());
EXPECT_EQ(s.size(), u.size());
}
TEST(UtilTest, UTF16ToUTF8EmptyString) {
std::string s = "";
fmt::internal::utf16_to_utf8 u(L"");
EXPECT_EQ(s, u.str());
EXPECT_EQ(s.size(), u.size());
}
TEST(UtilTest, UTF8ToUTF16) {
std::string s = "лошадка";
fmt::internal::utf8_to_utf16 u(s.c_str());
EXPECT_EQ(L"\x043B\x043E\x0448\x0430\x0434\x043A\x0430", u.str());
EXPECT_EQ(7, u.size());
}
TEST(UtilTest, UTF8ToUTF16EmptyString) {
std::string s = "";
fmt::internal::utf8_to_utf16 u(s.c_str());
EXPECT_EQ(L"", u.str());
EXPECT_EQ(s.size(), u.size());
}
template <typename Converter, typename Char>
void check_utf_conversion_error(
const char *message,
fmt::basic_string_view<Char> str = fmt::basic_string_view<Char>(0, 1)) {
fmt::memory_buffer out;
fmt::internal::format_windows_error(out, ERROR_INVALID_PARAMETER, message);
fmt::system_error error(0, "");
try {
(Converter)(str);
} catch (const fmt::system_error &e) {
error = e;
}
EXPECT_EQ(ERROR_INVALID_PARAMETER, error.error_code());
EXPECT_EQ(fmt::to_string(out), error.what());
}
TEST(UtilTest, UTF16ToUTF8Error) {
check_utf_conversion_error<fmt::internal::utf16_to_utf8, wchar_t>(
"cannot convert string from UTF-16 to UTF-8");
}
TEST(UtilTest, UTF8ToUTF16Error) {
const char *message = "cannot convert string from UTF-8 to UTF-16";
check_utf_conversion_error<fmt::internal::utf8_to_utf16, char>(message);
check_utf_conversion_error<fmt::internal::utf8_to_utf16, char>(
message, fmt::string_view("foo", INT_MAX + 1u));
}
TEST(UtilTest, UTF16ToUTF8Convert) {
fmt::internal::utf16_to_utf8 u;
EXPECT_EQ(ERROR_INVALID_PARAMETER, u.convert(fmt::wstring_view(0, 1)));
EXPECT_EQ(ERROR_INVALID_PARAMETER,
u.convert(fmt::wstring_view(L"foo", INT_MAX + 1u)));
}
#endif // _WIN32
typedef void (*FormatErrorMessage)(
fmt::internal::buffer &out, int error_code, string_view message);
template <typename Error>
void check_throw_error(int error_code, FormatErrorMessage format) {
fmt::system_error error(0, "");
try {
throw Error(error_code, "test {}", "error");
} catch (const fmt::system_error &e) {
error = e;
}
fmt::memory_buffer message;
format(message, error_code, "test error");
EXPECT_EQ(to_string(message), error.what());
EXPECT_EQ(error_code, error.error_code());
}
TEST(UtilTest, FormatSystemError) {
fmt::memory_buffer message;
fmt::format_system_error(message, EDOM, "test");
EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)),
to_string(message));
message = fmt::memory_buffer();
// Check if std::allocator throws on allocating max size_t / 2 chars.
size_t max_size = std::numeric_limits<size_t>::max() / 2;
bool throws_on_alloc = false;
try {
std::allocator<char> alloc;
alloc.deallocate(alloc.allocate(max_size), max_size);
} catch (const std::bad_alloc&) {
throws_on_alloc = true;
}
if (!throws_on_alloc) {
fmt::print("warning: std::allocator allocates {} chars", max_size);
return;
}
fmt::format_system_error(message, EDOM, fmt::string_view(nullptr, max_size));
EXPECT_EQ(fmt::format("error {}", EDOM), to_string(message));
}
TEST(UtilTest, SystemError) {
fmt::system_error e(EDOM, "test");
EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)), e.what());
EXPECT_EQ(EDOM, e.error_code());
check_throw_error<fmt::system_error>(EDOM, fmt::format_system_error);
}
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));
}
#ifdef _WIN32
TEST(UtilTest, FormatWindowsError) {
LPWSTR message = 0;
FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0,
ERROR_FILE_EXISTS, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
reinterpret_cast<LPWSTR>(&message), 0, 0);
fmt::internal::utf16_to_utf8 utf8_message(message);
LocalFree(message);
fmt::memory_buffer actual_message;
fmt::internal::format_windows_error(
actual_message, ERROR_FILE_EXISTS, "test");
EXPECT_EQ(fmt::format("test: {}", utf8_message.str()),
fmt::to_string(actual_message));
actual_message.resize(0);
fmt::internal::format_windows_error(
actual_message, ERROR_FILE_EXISTS,
fmt::string_view(0, std::numeric_limits<size_t>::max()));
EXPECT_EQ(fmt::format("error {}", ERROR_FILE_EXISTS),
fmt::to_string(actual_message));
}
TEST(UtilTest, FormatLongWindowsError) {
LPWSTR message = 0;
// this error code is not available on all Windows platforms and
// Windows SDKs, so do not fail the test if the error string cannot
// be retrieved.
const int provisioning_not_allowed = 0x80284013L /*TBS_E_PROVISIONING_NOT_ALLOWED*/;
if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0,
static_cast<DWORD>(provisioning_not_allowed),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
reinterpret_cast<LPWSTR>(&message), 0, 0) == 0) {
return;
}
fmt::internal::utf16_to_utf8 utf8_message(message);
LocalFree(message);
fmt::memory_buffer actual_message;
fmt::internal::format_windows_error(
actual_message, provisioning_not_allowed, "test");
EXPECT_EQ(fmt::format("test: {}", utf8_message.str()),
fmt::to_string(actual_message));
}
TEST(UtilTest, WindowsError) {
check_throw_error<fmt::windows_error>(
ERROR_FILE_EXISTS, fmt::internal::format_windows_error);
}
TEST(UtilTest, ReportWindowsError) {
fmt::memory_buffer out;
fmt::internal::format_windows_error(out, ERROR_FILE_EXISTS, "test error");
out.push_back('\n');
EXPECT_WRITE(stderr,
fmt::report_windows_error(ERROR_FILE_EXISTS, "test error"),
fmt::to_string(out));
}
#endif // _WIN32
enum TestEnum2 {};
TEST(UtilTest, ConvertToInt) {
TEST(CoreTest, ConvertToInt) {
EXPECT_FALSE((fmt::convert_to_int<char, char>::value));
EXPECT_FALSE((fmt::convert_to_int<const char *, char>::value));
EXPECT_TRUE((fmt::convert_to_int<TestEnum2, char>::value));
EXPECT_TRUE((fmt::convert_to_int<basic_enum, char>::value));
}
#if FMT_USE_ENUM_BASE
enum TestEnum : char {TestValue};
TEST(UtilTest, IsEnumConvertibleToInt) {
EXPECT_TRUE((fmt::convert_to_int<TestEnum, char>::value));
enum enum_with_underlying_type : char {TestValue};
TEST(CoreTest, IsEnumConvertibleToInt) {
EXPECT_TRUE((fmt::convert_to_int<enum_with_underlying_type, char>::value));
}
TEST(CoreTest, Format) {
// This should work without including fmt/format.h.
#ifdef FMT_FORMAT_H_
# error fmt/format.h must not be included in the core test
#endif
TEST(UtilTest, ParseNonnegativeInt) {
if (std::numeric_limits<int>::max() !=
static_cast<int>(static_cast<unsigned>(1) << 31)) {
fmt::print("Skipping parse_nonnegative_int test\n");
return;
}
const char *s = "10000000000";
EXPECT_THROW_MSG(
parse_nonnegative_int(s, fmt::internal::error_handler()),
fmt::format_error, "number is too big");
s = "2147483649";
EXPECT_THROW_MSG(
parse_nonnegative_int(s, fmt::internal::error_handler()),
fmt::format_error, "number is too big");
}
TEST(IteratorTest, CountingIterator) {
fmt::internal::counting_iterator<char> it;
auto prev = it++;
EXPECT_EQ(prev.count(), 0);
EXPECT_EQ(it.count(), 1);
}
TEST(IteratorTest, TruncatingIterator) {
char *p = FMT_NULL;
fmt::internal::truncating_iterator<char*> it(p, 3);
auto prev = it++;
EXPECT_EQ(prev.base(), p);
EXPECT_EQ(it.base(), p + 1);
EXPECT_EQ(fmt::format("{}", 42), "42");
}

455
test/format-test.cc
View File

@ -14,17 +14,24 @@
#include <memory>
#include <stdint.h>
// Check if fmt/format.h compiles with windows.h included before it.
#ifdef _WIN32
# include <windows.h>
#endif
#include "fmt/format.h"
#include "gmock.h"
#include "gtest-extra.h"
#include "mock-allocator.h"
#include "util.h"
#undef ERROR
#undef min
#undef max
using std::size_t;
using fmt::basic_memory_buffer;
using fmt::basic_writer;
using fmt::format;
using fmt::format_error;
@ -32,6 +39,9 @@ using fmt::string_view;
using fmt::memory_buffer;
using fmt::wmemory_buffer;
using testing::Return;
using testing::StrictMock;
namespace {
// Format value using the standard library.
@ -101,6 +111,451 @@ struct WriteChecker {
EXPECT_PRED_FORMAT1(WriteChecker<wchar_t>(), value)
} // namespace
// Tests fmt::internal::count_digits for integer type Int.
template <typename Int>
void test_count_digits() {
for (Int i = 0; i < 10; ++i)
EXPECT_EQ(1u, fmt::internal::count_digits(i));
for (Int i = 1, n = 1,
end = std::numeric_limits<Int>::max() / 10; n <= end; ++i) {
n *= 10;
EXPECT_EQ(i, fmt::internal::count_digits(n - 1));
EXPECT_EQ(i + 1, fmt::internal::count_digits(n));
}
}
TEST(UtilTest, CountDigits) {
test_count_digits<uint32_t>();
test_count_digits<uint64_t>();
}
struct uint32_pair {
uint32_t u[2];
};
TEST(UtilTest, BitCast) {
auto s = fmt::internal::bit_cast<uint32_pair>(uint64_t{42});
EXPECT_EQ(fmt::internal::bit_cast<uint64_t>(s), 42ull);
s = fmt::internal::bit_cast<uint32_pair>(uint64_t(~0ull));
EXPECT_EQ(fmt::internal::bit_cast<uint64_t>(s), ~0ull);
}
TEST(UtilTest, Increment) {
char s[10] = "123";
increment(s);
EXPECT_STREQ("124", s);
s[2] = '8';
increment(s);
EXPECT_STREQ("129", s);
increment(s);
EXPECT_STREQ("130", s);
s[1] = s[2] = '9';
increment(s);
EXPECT_STREQ("200", s);
}
TEST(UtilTest, ParseNonnegativeInt) {
if (std::numeric_limits<int>::max() !=
static_cast<int>(static_cast<unsigned>(1) << 31)) {
fmt::print("Skipping parse_nonnegative_int test\n");
return;
}
const char *s = "10000000000";
EXPECT_THROW_MSG(
parse_nonnegative_int(s, fmt::internal::error_handler()),
fmt::format_error, "number is too big");
s = "2147483649";
EXPECT_THROW_MSG(
parse_nonnegative_int(s, fmt::internal::error_handler()),
fmt::format_error, "number is too big");
}
TEST(IteratorTest, CountingIterator) {
fmt::internal::counting_iterator<char> it;
auto prev = it++;
EXPECT_EQ(prev.count(), 0);
EXPECT_EQ(it.count(), 1);
}
TEST(IteratorTest, TruncatingIterator) {
char *p = FMT_NULL;
fmt::internal::truncating_iterator<char*> it(p, 3);
auto prev = it++;
EXPECT_EQ(prev.base(), p);
EXPECT_EQ(it.base(), p + 1);
}
TEST(MemoryBufferTest, Ctor) {
basic_memory_buffer<char, 123> buffer;
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(123u, buffer.capacity());
}
static void check_forwarding(
mock_allocator<int> &alloc, allocator_ref<mock_allocator<int>> &ref) {
int mem;
// Check if value_type is properly defined.
allocator_ref< mock_allocator<int> >::value_type *ptr = &mem;
// Check forwarding.
EXPECT_CALL(alloc, allocate(42)).WillOnce(testing::Return(ptr));
ref.allocate(42);
EXPECT_CALL(alloc, deallocate(ptr, 42));
ref.deallocate(ptr, 42);
}
TEST(AllocatorTest, allocator_ref) {
StrictMock< mock_allocator<int> > alloc;
typedef allocator_ref< mock_allocator<int> > test_allocator_ref;
test_allocator_ref ref(&alloc);
// Check if allocator_ref forwards to the underlying allocator.
check_forwarding(alloc, ref);
test_allocator_ref ref2(ref);
check_forwarding(alloc, ref2);
test_allocator_ref ref3;
EXPECT_EQ(nullptr, ref3.get());
ref3 = ref;
check_forwarding(alloc, ref3);
}
typedef allocator_ref< std::allocator<char> > TestAllocator;
static void check_move_buffer(const char *str,
basic_memory_buffer<char, 5, TestAllocator> &buffer) {
std::allocator<char> *alloc = buffer.get_allocator().get();
basic_memory_buffer<char, 5, TestAllocator> buffer2(std::move(buffer));
// Move shouldn't destroy the inline content of the first buffer.
EXPECT_EQ(str, std::string(&buffer[0], buffer.size()));
EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size()));
EXPECT_EQ(5u, buffer2.capacity());
// Move should transfer allocator.
EXPECT_EQ(nullptr, buffer.get_allocator().get());
EXPECT_EQ(alloc, buffer2.get_allocator().get());
}
TEST(MemoryBufferTest, MoveCtor) {
std::allocator<char> alloc;
basic_memory_buffer<char, 5, TestAllocator> buffer((TestAllocator(&alloc)));
const char test[] = "test";
buffer.append(test, test + 4);
check_move_buffer("test", buffer);
// Adding one more character fills the inline buffer, but doesn't cause
// dynamic allocation.
buffer.push_back('a');
check_move_buffer("testa", buffer);
const char *inline_buffer_ptr = &buffer[0];
// Adding one more character causes the content to move from the inline to
// a dynamically allocated buffer.
buffer.push_back('b');
basic_memory_buffer<char, 5, TestAllocator> buffer2(std::move(buffer));
// Move should rip the guts of the first buffer.
EXPECT_EQ(inline_buffer_ptr, &buffer[0]);
EXPECT_EQ("testab", std::string(&buffer2[0], buffer2.size()));
EXPECT_GT(buffer2.capacity(), 5u);
}
static void check_move_assign_buffer(
const char *str, basic_memory_buffer<char, 5> &buffer) {
basic_memory_buffer<char, 5> buffer2;
buffer2 = std::move(buffer);
// Move shouldn't destroy the inline content of the first buffer.
EXPECT_EQ(str, std::string(&buffer[0], buffer.size()));
EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size()));
EXPECT_EQ(5u, buffer2.capacity());
}
TEST(MemoryBufferTest, MoveAssignment) {
basic_memory_buffer<char, 5> buffer;
const char test[] = "test";
buffer.append(test, test + 4);
check_move_assign_buffer("test", buffer);
// Adding one more character fills the inline buffer, but doesn't cause
// dynamic allocation.
buffer.push_back('a');
check_move_assign_buffer("testa", buffer);
const char *inline_buffer_ptr = &buffer[0];
// Adding one more character causes the content to move from the inline to
// a dynamically allocated buffer.
buffer.push_back('b');
basic_memory_buffer<char, 5> buffer2;
buffer2 = std::move(buffer);
// Move should rip the guts of the first buffer.
EXPECT_EQ(inline_buffer_ptr, &buffer[0]);
EXPECT_EQ("testab", std::string(&buffer2[0], buffer2.size()));
EXPECT_GT(buffer2.capacity(), 5u);
}
TEST(MemoryBufferTest, Grow) {
typedef allocator_ref< mock_allocator<int> > Allocator;
typedef basic_memory_buffer<int, 10, Allocator> Base;
mock_allocator<int> alloc;
struct TestMemoryBuffer : Base {
TestMemoryBuffer(Allocator alloc) : Base(alloc) {}
void grow(std::size_t size) { Base::grow(size); }
} buffer((Allocator(&alloc)));
buffer.resize(7);
using fmt::internal::to_unsigned;
for (int i = 0; i < 7; ++i)
buffer[to_unsigned(i)] = i * i;
EXPECT_EQ(10u, buffer.capacity());
int mem[20];
mem[7] = 0xdead;
EXPECT_CALL(alloc, allocate(20)).WillOnce(Return(mem));
buffer.grow(20);
EXPECT_EQ(20u, buffer.capacity());
// Check if size elements have been copied
for (int i = 0; i < 7; ++i)
EXPECT_EQ(i * i, buffer[to_unsigned(i)]);
// and no more than that.
EXPECT_EQ(0xdead, buffer[7]);
EXPECT_CALL(alloc, deallocate(mem, 20));
}
TEST(MemoryBufferTest, Allocator) {
typedef allocator_ref< mock_allocator<char> > TestAllocator;
basic_memory_buffer<char, 10, TestAllocator> buffer;
EXPECT_EQ(nullptr, buffer.get_allocator().get());
StrictMock< mock_allocator<char> > alloc;
char mem;
{
basic_memory_buffer<char, 10, TestAllocator> buffer2((TestAllocator(&alloc)));
EXPECT_EQ(&alloc, buffer2.get_allocator().get());
std::size_t size = 2 * fmt::inline_buffer_size;
EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem));
buffer2.reserve(size);
EXPECT_CALL(alloc, deallocate(&mem, size));
}
}
TEST(MemoryBufferTest, ExceptionInDeallocate) {
typedef allocator_ref< mock_allocator<char> > TestAllocator;
StrictMock< mock_allocator<char> > alloc;
basic_memory_buffer<char, 10, TestAllocator> buffer((TestAllocator(&alloc)));
std::size_t size = 2 * fmt::inline_buffer_size;
std::vector<char> mem(size);
{
EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem[0]));
buffer.resize(size);
std::fill(&buffer[0], &buffer[0] + size, 'x');
}
std::vector<char> mem2(2 * size);
{
EXPECT_CALL(alloc, allocate(2 * size)).WillOnce(Return(&mem2[0]));
std::exception e;
EXPECT_CALL(alloc, deallocate(&mem[0], size)).WillOnce(testing::Throw(e));
EXPECT_THROW(buffer.reserve(2 * size), std::exception);
EXPECT_EQ(&mem2[0], &buffer[0]);
// Check that the data has been copied.
for (std::size_t i = 0; i < size; ++i)
EXPECT_EQ('x', buffer[i]);
}
EXPECT_CALL(alloc, deallocate(&mem2[0], 2 * size));
}
TEST(FixedBufferTest, Ctor) {
char array[10] = "garbage";
fmt::basic_fixed_buffer<char> buffer(array, sizeof(array));
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(10u, buffer.capacity());
EXPECT_EQ(array, buffer.data());
}
TEST(FixedBufferTest, CompileTimeSizeCtor) {
char array[10] = "garbage";
fmt::basic_fixed_buffer<char> buffer(array);
EXPECT_EQ(static_cast<size_t>(0), buffer.size());
EXPECT_EQ(10u, buffer.capacity());
EXPECT_EQ(array, buffer.data());
}
TEST(FixedBufferTest, BufferOverflow) {
char array[10];
fmt::basic_fixed_buffer<char> buffer(array);
buffer.resize(10);
EXPECT_THROW_MSG(buffer.resize(11), std::runtime_error, "buffer overflow");
}
#ifdef _WIN32
TEST(UtilTest, UTF16ToUTF8) {
std::string s = "ёжик";
fmt::internal::utf16_to_utf8 u(L"\x0451\x0436\x0438\x043A");
EXPECT_EQ(s, u.str());
EXPECT_EQ(s.size(), u.size());
}
TEST(UtilTest, UTF16ToUTF8EmptyString) {
std::string s = "";
fmt::internal::utf16_to_utf8 u(L"");
EXPECT_EQ(s, u.str());
EXPECT_EQ(s.size(), u.size());
}
TEST(UtilTest, UTF8ToUTF16) {
std::string s = "лошадка";
fmt::internal::utf8_to_utf16 u(s.c_str());
EXPECT_EQ(L"\x043B\x043E\x0448\x0430\x0434\x043A\x0430", u.str());
EXPECT_EQ(7, u.size());
}
TEST(UtilTest, UTF8ToUTF16EmptyString) {
std::string s = "";
fmt::internal::utf8_to_utf16 u(s.c_str());
EXPECT_EQ(L"", u.str());
EXPECT_EQ(s.size(), u.size());
}
template <typename Converter, typename Char>
void check_utf_conversion_error(
const char *message,
fmt::basic_string_view<Char> str = fmt::basic_string_view<Char>(0, 1)) {
fmt::memory_buffer out;
fmt::internal::format_windows_error(out, ERROR_INVALID_PARAMETER, message);
fmt::system_error error(0, "");
try {
(Converter)(str);
} catch (const fmt::system_error &e) {
error = e;
}
EXPECT_EQ(ERROR_INVALID_PARAMETER, error.error_code());
EXPECT_EQ(fmt::to_string(out), error.what());
}
TEST(UtilTest, UTF16ToUTF8Error) {
check_utf_conversion_error<fmt::internal::utf16_to_utf8, wchar_t>(
"cannot convert string from UTF-16 to UTF-8");
}
TEST(UtilTest, UTF8ToUTF16Error) {
const char *message = "cannot convert string from UTF-8 to UTF-16";
check_utf_conversion_error<fmt::internal::utf8_to_utf16, char>(message);
check_utf_conversion_error<fmt::internal::utf8_to_utf16, char>(
message, fmt::string_view("foo", INT_MAX + 1u));
}
TEST(UtilTest, UTF16ToUTF8Convert) {
fmt::internal::utf16_to_utf8 u;
EXPECT_EQ(ERROR_INVALID_PARAMETER, u.convert(fmt::wstring_view(0, 1)));
EXPECT_EQ(ERROR_INVALID_PARAMETER,
u.convert(fmt::wstring_view(L"foo", INT_MAX + 1u)));
}
#endif // _WIN32
typedef void (*FormatErrorMessage)(
fmt::internal::buffer &out, int error_code, string_view message);
template <typename Error>
void check_throw_error(int error_code, FormatErrorMessage format) {
fmt::system_error error(0, "");
try {
throw Error(error_code, "test {}", "error");
} catch (const fmt::system_error &e) {
error = e;
}
fmt::memory_buffer message;
format(message, error_code, "test error");
EXPECT_EQ(to_string(message), error.what());
EXPECT_EQ(error_code, error.error_code());
}
TEST(UtilTest, FormatSystemError) {
fmt::memory_buffer message;
fmt::format_system_error(message, EDOM, "test");
EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)),
to_string(message));
message = fmt::memory_buffer();
// Check if std::allocator throws on allocating max size_t / 2 chars.
size_t max_size = std::numeric_limits<size_t>::max() / 2;
bool throws_on_alloc = false;
try {
std::allocator<char> alloc;
alloc.deallocate(alloc.allocate(max_size), max_size);
} catch (const std::bad_alloc&) {
throws_on_alloc = true;
}
if (!throws_on_alloc) {
fmt::print("warning: std::allocator allocates {} chars", max_size);
return;
}
fmt::format_system_error(message, EDOM, fmt::string_view(nullptr, max_size));
EXPECT_EQ(fmt::format("error {}", EDOM), to_string(message));
}
TEST(UtilTest, SystemError) {
fmt::system_error e(EDOM, "test");
EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)), e.what());
EXPECT_EQ(EDOM, e.error_code());
check_throw_error<fmt::system_error>(EDOM, fmt::format_system_error);
}
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));
}
#ifdef _WIN32
TEST(UtilTest, FormatWindowsError) {
LPWSTR message = 0;
FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0,
ERROR_FILE_EXISTS, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
reinterpret_cast<LPWSTR>(&message), 0, 0);
fmt::internal::utf16_to_utf8 utf8_message(message);
LocalFree(message);
fmt::memory_buffer actual_message;
fmt::internal::format_windows_error(
actual_message, ERROR_FILE_EXISTS, "test");
EXPECT_EQ(fmt::format("test: {}", utf8_message.str()),
fmt::to_string(actual_message));
actual_message.resize(0);
fmt::internal::format_windows_error(
actual_message, ERROR_FILE_EXISTS,
fmt::string_view(0, std::numeric_limits<size_t>::max()));
EXPECT_EQ(fmt::format("error {}", ERROR_FILE_EXISTS),
fmt::to_string(actual_message));
}
TEST(UtilTest, FormatLongWindowsError) {
LPWSTR message = 0;
// this error code is not available on all Windows platforms and
// Windows SDKs, so do not fail the test if the error string cannot
// be retrieved.
const int provisioning_not_allowed = 0x80284013L /*TBS_E_PROVISIONING_NOT_ALLOWED*/;
if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0,
static_cast<DWORD>(provisioning_not_allowed),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
reinterpret_cast<LPWSTR>(&message), 0, 0) == 0) {
return;
}
fmt::internal::utf16_to_utf8 utf8_message(message);
LocalFree(message);
fmt::memory_buffer actual_message;
fmt::internal::format_windows_error(
actual_message, provisioning_not_allowed, "test");
EXPECT_EQ(fmt::format("test: {}", utf8_message.str()),
fmt::to_string(actual_message));
}
TEST(UtilTest, WindowsError) {
check_throw_error<fmt::windows_error>(
ERROR_FILE_EXISTS, fmt::internal::format_windows_error);
}
TEST(UtilTest, ReportWindowsError) {
fmt::memory_buffer out;
fmt::internal::format_windows_error(out, ERROR_FILE_EXISTS, "test error");
out.push_back('\n');
EXPECT_WRITE(stderr,
fmt::report_windows_error(ERROR_FILE_EXISTS, "test error"),
fmt::to_string(out));
}
#endif // _WIN32
TEST(StringViewTest, Ctor) {
EXPECT_STREQ("abc", string_view("abc").data());
EXPECT_EQ(3u, string_view("abc").size());

21
test/mock-allocator.h
View File

@ -9,23 +9,24 @@
#define FMT_MOCK_ALLOCATOR_H_
#include "gmock.h"
#include "fmt/format.h"
template <typename T>
class MockAllocator {
class mock_allocator {
public:
MockAllocator() {}
MockAllocator(const MockAllocator &) {}
mock_allocator() {}
mock_allocator(const mock_allocator &) {}
typedef T value_type;
MOCK_METHOD1_T(allocate, T* (std::size_t n));
MOCK_METHOD2_T(deallocate, void (T* p, std::size_t n));
};
template <typename Allocator>
class AllocatorRef {
class allocator_ref {
private:
Allocator *alloc_;
void move(AllocatorRef &other) {
void move(allocator_ref &other) {
alloc_ = other.alloc_;
other.alloc_ = nullptr;
}
@ -33,18 +34,18 @@ class AllocatorRef {
public:
typedef typename Allocator::value_type value_type;
explicit AllocatorRef(Allocator *alloc = nullptr) : alloc_(alloc) {}
explicit allocator_ref(Allocator *alloc = nullptr) : alloc_(alloc) {}
AllocatorRef(const AllocatorRef &other) : alloc_(other.alloc_) {}
AllocatorRef(AllocatorRef &&other) { move(other); }
allocator_ref(const allocator_ref &other) : alloc_(other.alloc_) {}
allocator_ref(allocator_ref &&other) { move(other); }
AllocatorRef& operator=(AllocatorRef &&other) {
allocator_ref& operator=(allocator_ref &&other) {
assert(this != &other);
move(other);
return *this;
}
AllocatorRef& operator=(const AllocatorRef &other) {
allocator_ref& operator=(const allocator_ref &other) {
alloc_ = other.alloc_;
return *this;
}

17
test/test-assert.h
View File

@ -5,23 +5,22 @@
//
// For the license information refer to format.h.
#ifndef FMT_TEST_ASSERT_H
#define FMT_TEST_ASSERT_H
#ifndef FMT_TEST_ASSERT_H_
#define FMT_TEST_ASSERT_H_
#include <stdexcept>
#include "gtest.h"
class AssertionFailure : public std::logic_error {
class assertion_failure : public std::logic_error {
public:
explicit AssertionFailure(const char *message) : std::logic_error(message) {}
explicit assertion_failure(const char *message) : std::logic_error(message) {}
};
#define FMT_ASSERT(condition, message) \
if (!(condition)) throw AssertionFailure(message);
#include "gtest-extra.h"
if (!(condition)) throw assertion_failure(message);
// Expects an assertion failure.
#define EXPECT_ASSERT(stmt, message) \
EXPECT_THROW_MSG(stmt, AssertionFailure, message)
FMT_TEST_THROW_(stmt, assertion_failure, message, GTEST_NONFATAL_FAILURE_)
#endif // FMT_TEST_ASSERT_H
#endif // FMT_TEST_ASSERT_H_