84 lines
3.1 KiB
C++
84 lines
3.1 KiB
C++
// Formatting library for C++ - tests of formatters for standard library types
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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 "fmt/std.h"
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#include "fmt/ranges.h"
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#include <string>
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#include <vector>
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#include "gtest/gtest.h"
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TEST(std_test, path) {
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// Test ambiguity problem described in #2954. We need to exclude compilers
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// where the ambiguity problem cannot be solved for now.
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#if defined(__cpp_lib_filesystem) && \
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(!FMT_MSC_VERSION || FMT_MSC_VERSION >= 1920)
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EXPECT_EQ(fmt::format("{:8}", std::filesystem::path("foo")), "\"foo\" ");
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EXPECT_EQ(fmt::format("{}", std::filesystem::path("foo\"bar.txt")),
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"\"foo\\\"bar.txt\"");
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# ifdef _WIN32
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// File.txt in Russian.
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const wchar_t unicode_path[] = {0x424, 0x430, 0x439, 0x43b, 0x2e,
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0x74, 0x78, 0x74, 0};
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const char unicode_u8path[] = {'"', char(0xd0), char(0xa4), char(0xd0),
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char(0xb0), char(0xd0), char(0xb9), char(0xd0),
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char(0xbb), '.', 't', 'x',
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't', '"', '\0'};
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EXPECT_EQ(fmt::format("{}", std::filesystem::path(unicode_path)),
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unicode_u8path);
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# endif
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#endif
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}
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TEST(ranges_std_test, format_vector_path) {
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// Test ambiguity problem described in #2954. We need to exclude compilers
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// where the ambiguity problem cannot be solved for now.
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#if defined(__cpp_lib_filesystem) && \
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(!FMT_MSC_VERSION || FMT_MSC_VERSION >= 1920)
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auto p = std::filesystem::path("foo/bar.txt");
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auto c = std::vector<std::string>{"abc", "def"};
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EXPECT_EQ(fmt::format("path={}, range={}", p, c),
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"path=\"foo/bar.txt\", range=[\"abc\", \"def\"]");
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#endif
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}
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TEST(std_test, thread_id) {
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EXPECT_FALSE(fmt::format("{}", std::this_thread::get_id()).empty());
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}
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TEST(std_test, variant) {
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#ifdef __cpp_lib_variant
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EXPECT_EQ(fmt::format("{}", std::monostate{}), "monostate");
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using V0 = std::variant<int, float, std::string, char>;
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V0 v0(42);
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V0 v1(1.5f);
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V0 v2("hello");
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V0 v3('i');
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EXPECT_EQ(fmt::format("{}", v0), "variant(42)");
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EXPECT_EQ(fmt::format("{}", v1), "variant(1.5)");
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EXPECT_EQ(fmt::format("{}", v2), "variant(\"hello\")");
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EXPECT_EQ(fmt::format("{}", v3), "variant('i')");
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struct unformattable {};
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EXPECT_FALSE((fmt::is_formattable<unformattable>::value));
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EXPECT_FALSE((fmt::is_formattable<std::variant<unformattable>>::value));
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EXPECT_FALSE((fmt::is_formattable<std::variant<unformattable, int>>::value));
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EXPECT_FALSE((fmt::is_formattable<std::variant<int, unformattable>>::value));
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EXPECT_FALSE(
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(fmt::is_formattable<std::variant<unformattable, unformattable>>::value));
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EXPECT_TRUE((fmt::is_formattable<std::variant<int, float>>::value));
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using V1 = std::variant<std::monostate, std::string, std::string>;
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V1 v4{};
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V1 v5{std::in_place_index<1>, "yes, this is variant"};
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EXPECT_EQ(fmt::format("{}", v4), "variant(monostate)");
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EXPECT_EQ(fmt::format("{}", v5), "variant(\"yes, this is variant\")");
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#endif
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}
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