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// Formatting library for C++ - tests of formatters for standard library types
//
// Copyright (c) 2012 - present, Victor Zverovich
// All rights reserved.
//
// For the license information refer to format.h.
#include "fmt/std.h"
#include "fmt/ranges.h"
#include <string>
#include <vector>
#include "gtest/gtest.h"
TEST(std_test, path) {
#ifdef __cpp_lib_filesystem
EXPECT_EQ(fmt::format("{:8}", std::filesystem::path("foo")), "\"foo\" ");
EXPECT_EQ(fmt::format("{}", std::filesystem::path("foo\"bar.txt")),
"\"foo\\\"bar.txt\"");
# ifdef _WIN32
// File.txt in Russian.
const wchar_t unicode_path[] = {0x424, 0x430, 0x439, 0x43b, 0x2e,
0x74, 0x78, 0x74, 0};
const char unicode_u8path[] = {'"', char(0xd0), char(0xa4), char(0xd0),
char(0xb0), char(0xd0), char(0xb9), char(0xd0),
char(0xbb), '.', 't', 'x',
't', '"', '\0'};
EXPECT_EQ(fmt::format("{}", std::filesystem::path(unicode_path)),
unicode_u8path);
# endif
#endif
}
TEST(ranges_std_test, format_vector_path) {
// Test ambiguity problem described in #2954.
#ifdef __cpp_lib_filesystem
auto p = std::filesystem::path("foo/bar.txt");
auto c = std::vector<std::string>{"abc", "def"};
EXPECT_EQ(fmt::format("path={}, range={}", p, c),
"path=\"foo/bar.txt\", range=[\"abc\", \"def\"]");
#endif
}
TEST(std_test, thread_id) {
EXPECT_FALSE(fmt::format("{}", std::this_thread::get_id()).empty());
}
TEST(std_test, variant) {
#ifdef __cpp_lib_variant
EXPECT_EQ(fmt::format("{}", std::monostate{}), "monostate");
using V0 = std::variant<int, float, std::string, char>;
V0 v0(42);
V0 v1(1.5f);
V0 v2("hello");
V0 v3('i');
EXPECT_EQ(fmt::format("{}", v0), "variant(42)");
EXPECT_EQ(fmt::format("{}", v1), "variant(1.5)");
EXPECT_EQ(fmt::format("{}", v2), "variant(\"hello\")");
EXPECT_EQ(fmt::format("{}", v3), "variant('i')");
struct unformattable {};
EXPECT_FALSE((fmt::is_formattable<unformattable>::value));
EXPECT_FALSE((fmt::is_formattable<std::variant<unformattable>>::value));
EXPECT_FALSE((fmt::is_formattable<std::variant<unformattable, int>>::value));
EXPECT_FALSE((fmt::is_formattable<std::variant<int, unformattable>>::value));
EXPECT_FALSE(
(fmt::is_formattable<std::variant<unformattable, unformattable>>::value));
EXPECT_TRUE((fmt::is_formattable<std::variant<int, float>>::value));
using V1 = std::variant<std::monostate, std::string, std::string>;
V1 v4{};
V1 v5{std::in_place_index<1>, "yes, this is variant"};
EXPECT_EQ(fmt::format("{}", v4), "variant(monostate)");
EXPECT_EQ(fmt::format("{}", v5), "variant(\"yes, this is variant\")");
#endif
}
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