mirror of
https://github.com/fmtlib/fmt.git
synced 2025-10-30 21:51:43 +01:00
131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
// Formatting library for C++ - formatting library implementation tests
|
|
//
|
|
// Copyright (c) 2012 - present, Victor Zverovich
|
|
// All rights reserved.
|
|
//
|
|
// For the license information refer to format.h.
|
|
|
|
#define FMT_EXTENDED_COLORS
|
|
#define FMT_NOEXCEPT
|
|
#undef FMT_SHARED
|
|
#include "test-assert.h"
|
|
|
|
// Include format.cc instead of format.h to test implementation.
|
|
#include "../src/format.cc"
|
|
#include "fmt/printf.h"
|
|
|
|
#include <algorithm>
|
|
#include <cstring>
|
|
|
|
#include "gmock.h"
|
|
#include "gtest-extra.h"
|
|
#include "util.h"
|
|
|
|
#undef min
|
|
#undef max
|
|
|
|
template <typename T>
|
|
struct ValueExtractor: fmt::internal::function<T> {
|
|
T operator()(T value) {
|
|
return value;
|
|
}
|
|
|
|
template <typename U>
|
|
FMT_NORETURN T operator()(U) {
|
|
throw std::runtime_error(fmt::format("invalid type {}", typeid(U).name()));
|
|
}
|
|
};
|
|
|
|
TEST(FormatTest, ArgConverter) {
|
|
long long value = std::numeric_limits<long long>::max();
|
|
auto arg = fmt::internal::make_arg<fmt::format_context>(value);
|
|
visit(fmt::internal::arg_converter<long long, fmt::format_context>(arg, 'd'),
|
|
arg);
|
|
EXPECT_EQ(value, visit(ValueExtractor<long long>(), arg));
|
|
}
|
|
|
|
TEST(FormatTest, FormatNegativeNaN) {
|
|
double nan = std::numeric_limits<double>::quiet_NaN();
|
|
if (fmt::internal::fputil::isnegative(-nan))
|
|
EXPECT_EQ("-nan", fmt::format("{}", -nan));
|
|
else
|
|
fmt::print("Warning: compiler doesn't handle negative NaN correctly");
|
|
}
|
|
|
|
TEST(FormatTest, StrError) {
|
|
char *message = nullptr;
|
|
char buffer[BUFFER_SIZE];
|
|
EXPECT_ASSERT(fmt::safe_strerror(EDOM, message = nullptr, 0), "invalid buffer");
|
|
EXPECT_ASSERT(fmt::safe_strerror(EDOM, message = buffer, 0),
|
|
"invalid buffer");
|
|
buffer[0] = 'x';
|
|
#if defined(_GNU_SOURCE) && !defined(__COVERITY__)
|
|
// Use invalid error code to make sure that safe_strerror returns an error
|
|
// message in the buffer rather than a pointer to a static string.
|
|
int error_code = -1;
|
|
#else
|
|
int error_code = EDOM;
|
|
#endif
|
|
|
|
int result = fmt::safe_strerror(error_code, message = buffer, BUFFER_SIZE);
|
|
EXPECT_EQ(0, result);
|
|
std::size_t message_size = std::strlen(message);
|
|
EXPECT_GE(BUFFER_SIZE - 1u, message_size);
|
|
EXPECT_EQ(get_system_error(error_code), message);
|
|
|
|
// safe_strerror never uses buffer on MinGW.
|
|
#ifndef __MINGW32__
|
|
result = fmt::safe_strerror(error_code, message = buffer, message_size);
|
|
EXPECT_EQ(ERANGE, result);
|
|
result = fmt::safe_strerror(error_code, message = buffer, 1);
|
|
EXPECT_EQ(buffer, message); // Message should point to buffer.
|
|
EXPECT_EQ(ERANGE, result);
|
|
EXPECT_STREQ("", message);
|
|
#endif
|
|
}
|
|
|
|
TEST(FormatTest, FormatErrorCode) {
|
|
std::string msg = "error 42", sep = ": ";
|
|
{
|
|
fmt::memory_buffer buffer;
|
|
format_to(buffer, "garbage");
|
|
fmt::format_error_code(buffer, 42, "test");
|
|
EXPECT_EQ("test: " + msg, to_string(buffer));
|
|
}
|
|
{
|
|
fmt::memory_buffer buffer;
|
|
std::string prefix(
|
|
fmt::inline_buffer_size - msg.size() - sep.size() + 1, 'x');
|
|
fmt::format_error_code(buffer, 42, prefix);
|
|
EXPECT_EQ(msg, to_string(buffer));
|
|
}
|
|
int codes[] = {42, -1};
|
|
for (std::size_t i = 0, n = sizeof(codes) / sizeof(*codes); i < n; ++i) {
|
|
// Test maximum buffer size.
|
|
msg = fmt::format("error {}", codes[i]);
|
|
fmt::memory_buffer buffer;
|
|
std::string prefix(
|
|
fmt::inline_buffer_size - msg.size() - sep.size(), 'x');
|
|
fmt::format_error_code(buffer, codes[i], prefix);
|
|
EXPECT_EQ(prefix + sep + msg, to_string(buffer));
|
|
std::size_t size = fmt::inline_buffer_size;
|
|
EXPECT_EQ(size, buffer.size());
|
|
buffer.resize(0);
|
|
// Test with a message that doesn't fit into the buffer.
|
|
prefix += 'x';
|
|
fmt::format_error_code(buffer, codes[i], prefix);
|
|
EXPECT_EQ(msg, to_string(buffer));
|
|
}
|
|
}
|
|
|
|
TEST(FormatTest, CountCodePoints) {
|
|
EXPECT_EQ(4, fmt::internal::count_code_points(fmt::u8string_view("ёжик")));
|
|
}
|
|
|
|
TEST(ColorsTest, Colors) {
|
|
EXPECT_WRITE(stdout, fmt::print(fmt::rgb(255,20,30), "rgb(255,20,30)"),
|
|
"\x1b[38;2;255;020;030mrgb(255,20,30)\x1b[0m");
|
|
EXPECT_WRITE(stdout, fmt::print(fmt::color::blue, "blue"),
|
|
"\x1b[38;2;000;000;255mblue\x1b[0m");
|
|
}
|