152 lines
4.5 KiB
C++
152 lines
4.5 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 <deque>
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#include <list>
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#include <memory>
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#include <string>
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// Check if fmt/compile.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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#include "fmt/compile.h"
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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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#undef min
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#undef max
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using testing::Return;
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using testing::StrictMock;
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// compiletime_prepared_parts_type_provider is useful only with relaxed
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// constexpr.
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#if FMT_USE_CONSTEXPR
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template <unsigned EXPECTED_PARTS_COUNT, typename Format>
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void check_prepared_parts_type(Format format) {
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typedef fmt::detail::compiled_format_base<decltype(format)> provider;
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typedef fmt::detail::format_part<char>
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expected_parts_type[EXPECTED_PARTS_COUNT];
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static_assert(std::is_same<typename provider::parts_container,
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expected_parts_type>::value,
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"CompileTimePreparedPartsTypeProvider test failed");
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}
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TEST(CompileTest, CompileTimePreparedPartsTypeProvider) {
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check_prepared_parts_type<1u>(FMT_STRING("text"));
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check_prepared_parts_type<1u>(FMT_STRING("{}"));
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check_prepared_parts_type<2u>(FMT_STRING("text{}"));
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check_prepared_parts_type<2u>(FMT_STRING("{}text"));
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check_prepared_parts_type<3u>(FMT_STRING("text{}text"));
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check_prepared_parts_type<3u>(FMT_STRING("{:{}.{}} {:{}}"));
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check_prepared_parts_type<3u>(FMT_STRING("{{{}}}")); // '{', 'argument', '}'
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check_prepared_parts_type<2u>(FMT_STRING("text{{")); // 'text', '{'
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check_prepared_parts_type<3u>(FMT_STRING("text{{ ")); // 'text', '{', ' '
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check_prepared_parts_type<2u>(FMT_STRING("}}text")); // '}', text
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check_prepared_parts_type<2u>(FMT_STRING("text}}text")); // 'text}', 'text'
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check_prepared_parts_type<4u>(
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FMT_STRING("text{{}}text")); // 'text', '{', '}', 'text'
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}
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#endif
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TEST(CompileTest, PassStringLiteralFormat) {
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const auto prepared = fmt::compile<int>("test {}");
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EXPECT_EQ("test 42", fmt::format(prepared, 42));
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const auto wprepared = fmt::compile<int>(L"test {}");
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EXPECT_EQ(L"test 42", fmt::format(wprepared, 42));
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}
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#if FMT_USE_CONSTEXPR
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TEST(CompileTest, PassCompileString) {
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const auto prepared = fmt::compile<int>(FMT_STRING("test {}"));
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EXPECT_EQ("test 42", fmt::format(prepared, 42));
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const auto wprepared = fmt::compile<int>(FMT_STRING(L"test {}"));
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EXPECT_EQ(L"test 42", fmt::format(wprepared, 42));
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}
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#endif
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TEST(CompileTest, FormatToArrayOfChars) {
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char buffer[32] = {0};
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const auto prepared = fmt::compile<int>("4{}");
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fmt::format_to(fmt::detail::make_checked(buffer, 32), prepared, 2);
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EXPECT_EQ(std::string("42"), buffer);
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wchar_t wbuffer[32] = {0};
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const auto wprepared = fmt::compile<int>(L"4{}");
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fmt::format_to(fmt::detail::make_checked(wbuffer, 32), wprepared, 2);
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EXPECT_EQ(std::wstring(L"42"), wbuffer);
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}
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TEST(CompileTest, FormatToIterator) {
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std::string s(2, ' ');
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const auto prepared = fmt::compile<int>("4{}");
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fmt::format_to(s.begin(), prepared, 2);
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EXPECT_EQ("42", s);
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std::wstring ws(2, L' ');
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const auto wprepared = fmt::compile<int>(L"4{}");
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fmt::format_to(ws.begin(), wprepared, 2);
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EXPECT_EQ(L"42", ws);
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}
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TEST(CompileTest, FormatToN) {
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char buf[5];
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auto f = fmt::compile<int>("{:10}");
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auto result = fmt::format_to_n(buf, 5, f, 42);
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EXPECT_EQ(result.size, 10);
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EXPECT_EQ(result.out, buf + 5);
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EXPECT_EQ(fmt::string_view(buf, 5), " ");
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}
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TEST(CompileTest, FormattedSize) {
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auto f = fmt::compile<int>("{:10}");
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EXPECT_EQ(fmt::formatted_size(f, 42), 10);
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}
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TEST(CompileTest, MultipleTypes) {
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auto f = fmt::compile<int, int>("{} {}");
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EXPECT_EQ(fmt::format(f, 42, 42), "42 42");
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}
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struct formattable {};
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FMT_BEGIN_NAMESPACE
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template <> struct formatter<formattable> : formatter<const char*> {
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auto format(formattable, format_context& ctx) -> decltype(ctx.out()) {
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return formatter<const char*>::format("foo", ctx);
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}
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};
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FMT_END_NAMESPACE
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TEST(CompileTest, FormatUserDefinedType) {
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auto f = fmt::compile<formattable>("{}");
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EXPECT_EQ(fmt::format(f, formattable()), "foo");
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}
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TEST(CompileTest, EmptyFormatString) {
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auto f = fmt::compile<>("");
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EXPECT_EQ(fmt::format(f), "");
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}
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#ifdef __cpp_if_constexpr
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TEST(CompileTest, Basic) {
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EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42));
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EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), "foo"));
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}
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#endif
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