diff options
author | dakovalkov <[email protected]> | 2023-02-17 12:41:41 +0300 |
---|---|---|
committer | dakovalkov <[email protected]> | 2023-02-17 12:41:41 +0300 |
commit | cd21459f6ea789b57cb76b39cb52553923024abd (patch) | |
tree | 332cedd2db0f9ce57952887c19c1ce97e775cd52 /contrib/libs/fmt/test/printf-test.cc | |
parent | 14530b5eb2df23bc3b0027fdd6d07e0035bafe2e (diff) |
Update fmtlib to 8.1.1 + spdlog to 1.11.0 + jinja2cpp to 1.2.1
Diffstat (limited to 'contrib/libs/fmt/test/printf-test.cc')
-rw-r--r-- | contrib/libs/fmt/test/printf-test.cc | 234 |
1 files changed, 97 insertions, 137 deletions
diff --git a/contrib/libs/fmt/test/printf-test.cc b/contrib/libs/fmt/test/printf-test.cc index ccd72dcd752..0bb9ccdaf68 100644 --- a/contrib/libs/fmt/test/printf-test.cc +++ b/contrib/libs/fmt/test/printf-test.cc @@ -11,7 +11,8 @@ #include <climits> #include <cstring> -#include "fmt/core.h" +#include "fmt/ostream.h" +#include "fmt/xchar.h" #include "gtest-extra.h" #include "util.h" @@ -19,7 +20,7 @@ using fmt::format; using fmt::format_error; using fmt::detail::max_value; -const unsigned BIG_NUM = INT_MAX + 1u; +const unsigned big_num = INT_MAX + 1u; // Makes format string argument positional. static std::string make_positional(fmt::string_view format) { @@ -28,7 +29,7 @@ static std::string make_positional(fmt::string_view format) { return s; } -static std::wstring make_positional(fmt::wstring_view format) { +static std::wstring make_positional(fmt::basic_string_view<wchar_t> format) { std::wstring s(format.data(), format.size()); s.replace(s.find(L'%'), 1, L"%1$"); return s; @@ -41,7 +42,8 @@ std::string test_sprintf(fmt::string_view format, const Args&... args) { return fmt::sprintf(format, args...); } template <typename... Args> -std::wstring test_sprintf(fmt::wstring_view format, const Args&... args) { +std::wstring test_sprintf(fmt::basic_string_view<wchar_t> format, + const Args&... args) { return fmt::sprintf(format, args...); } @@ -50,12 +52,12 @@ std::wstring test_sprintf(fmt::wstring_view format, const Args&... args) { << "format: " << format; \ EXPECT_EQ(expected_output, fmt::sprintf(make_positional(format), arg)) -TEST(PrintfTest, NoArgs) { +TEST(printf_test, no_args) { EXPECT_EQ("test", test_sprintf("test")); EXPECT_EQ(L"test", fmt::sprintf(L"test")); } -TEST(PrintfTest, Escape) { +TEST(printf_test, escape) { EXPECT_EQ("%", test_sprintf("%%")); EXPECT_EQ("before %", test_sprintf("before %%")); EXPECT_EQ("% after", test_sprintf("%% after")); @@ -68,7 +70,7 @@ TEST(PrintfTest, Escape) { EXPECT_EQ(L"%s", fmt::sprintf(L"%%s")); } -TEST(PrintfTest, PositionalArgs) { +TEST(printf_test, positional_args) { EXPECT_EQ("42", test_sprintf("%1$d", 42)); EXPECT_EQ("before 42", test_sprintf("before %1$d", 42)); EXPECT_EQ("42 after", test_sprintf("%1$d after", 42)); @@ -78,40 +80,40 @@ TEST(PrintfTest, PositionalArgs) { EXPECT_EQ("abracadabra", test_sprintf("%1$s%2$s%1$s", "abra", "cad")); } -TEST(PrintfTest, AutomaticArgIndexing) { +TEST(printf_test, automatic_arg_indexing) { EXPECT_EQ("abc", test_sprintf("%c%c%c", 'a', 'b', 'c')); } -TEST(PrintfTest, NumberIsTooBigInArgIndex) { - EXPECT_THROW_MSG(test_sprintf(format("%{}$", BIG_NUM)), format_error, - "number is too big"); - EXPECT_THROW_MSG(test_sprintf(format("%{}$d", BIG_NUM)), format_error, - "number is too big"); +TEST(printf_test, number_is_too_big_in_arg_index) { + EXPECT_THROW_MSG(test_sprintf(format("%{}$", big_num)), format_error, + "argument not found"); + EXPECT_THROW_MSG(test_sprintf(format("%{}$d", big_num)), format_error, + "argument not found"); } -TEST(PrintfTest, SwitchArgIndexing) { +TEST(printf_test, switch_arg_indexing) { EXPECT_THROW_MSG(test_sprintf("%1$d%", 1, 2), format_error, "cannot switch from manual to automatic argument indexing"); - EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", BIG_NUM), 1, 2), + EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", big_num), 1, 2), format_error, "number is too big"); EXPECT_THROW_MSG(test_sprintf("%1$d%d", 1, 2), format_error, "cannot switch from manual to automatic argument indexing"); EXPECT_THROW_MSG(test_sprintf("%d%1$", 1, 2), format_error, "cannot switch from automatic to manual argument indexing"); - EXPECT_THROW_MSG(test_sprintf(format("%d%{}$d", BIG_NUM), 1, 2), format_error, - "number is too big"); + EXPECT_THROW_MSG(test_sprintf(format("%d%{}$d", big_num), 1, 2), format_error, + "cannot switch from automatic to manual argument indexing"); EXPECT_THROW_MSG(test_sprintf("%d%1$d", 1, 2), format_error, "cannot switch from automatic to manual argument indexing"); // Indexing errors override width errors. - EXPECT_THROW_MSG(test_sprintf(format("%d%1${}d", BIG_NUM), 1, 2), + EXPECT_THROW_MSG(test_sprintf(format("%d%1${}d", big_num), 1, 2), format_error, "number is too big"); - EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", BIG_NUM), 1, 2), + EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", big_num), 1, 2), format_error, "number is too big"); } -TEST(PrintfTest, InvalidArgIndex) { +TEST(printf_test, invalid_arg_index) { EXPECT_THROW_MSG(test_sprintf("%0$d", 42), format_error, "argument not found"); EXPECT_THROW_MSG(test_sprintf("%2$d", 42), format_error, @@ -120,16 +122,16 @@ TEST(PrintfTest, InvalidArgIndex) { "argument not found"); EXPECT_THROW_MSG(test_sprintf("%2$", 42), format_error, "argument not found"); - EXPECT_THROW_MSG(test_sprintf(format("%{}$d", BIG_NUM), 42), format_error, - "number is too big"); + EXPECT_THROW_MSG(test_sprintf(format("%{}$d", big_num), 42), format_error, + "argument not found"); } -TEST(PrintfTest, DefaultAlignRight) { +TEST(printf_test, default_align_right) { EXPECT_PRINTF(" 42", "%5d", 42); EXPECT_PRINTF(" abc", "%5s", "abc"); } -TEST(PrintfTest, ZeroFlag) { +TEST(printf_test, zero_flag) { EXPECT_PRINTF("00042", "%05d", 42); EXPECT_PRINTF("-0042", "%05d", -42); @@ -146,7 +148,7 @@ TEST(PrintfTest, ZeroFlag) { EXPECT_PRINTF(" x", "%05c", 'x'); } -TEST(PrintfTest, PlusFlag) { +TEST(printf_test, plus_flag) { EXPECT_PRINTF("+42", "%+d", 42); EXPECT_PRINTF("-42", "%+d", -42); EXPECT_PRINTF("+0042", "%+05d", 42); @@ -168,7 +170,7 @@ TEST(PrintfTest, PlusFlag) { EXPECT_PRINTF("x", "% +c", 'x'); } -TEST(PrintfTest, MinusFlag) { +TEST(printf_test, minus_flag) { EXPECT_PRINTF("abc ", "%-5s", "abc"); EXPECT_PRINTF("abc ", "%0--5s", "abc"); @@ -188,7 +190,7 @@ TEST(PrintfTest, MinusFlag) { EXPECT_PRINTF(" 42", "%- d", 42); } -TEST(PrintfTest, SpaceFlag) { +TEST(printf_test, space_flag) { EXPECT_PRINTF(" 42", "% d", 42); EXPECT_PRINTF("-42", "% d", -42); EXPECT_PRINTF(" 0042", "% 05d", 42); @@ -198,7 +200,7 @@ TEST(PrintfTest, SpaceFlag) { EXPECT_PRINTF("x", "% c", 'x'); } -TEST(PrintfTest, HashFlag) { +TEST(printf_test, hash_flag) { EXPECT_PRINTF("042", "%#o", 042); EXPECT_PRINTF(fmt::format("0{:o}", static_cast<unsigned>(-042)), "%#o", -042); EXPECT_PRINTF("0", "%#o", 0); @@ -215,7 +217,7 @@ TEST(PrintfTest, HashFlag) { EXPECT_PRINTF("-42.000000", "%#f", -42.0); EXPECT_PRINTF("-42.000000", "%#F", -42.0); - char buffer[BUFFER_SIZE]; + char buffer[256]; safe_sprintf(buffer, "%#e", -42.0); EXPECT_PRINTF(buffer, "%#e", -42.0); safe_sprintf(buffer, "%#E", -42.0); @@ -233,30 +235,30 @@ TEST(PrintfTest, HashFlag) { EXPECT_PRINTF("x", "%#c", 'x'); } -TEST(PrintfTest, Width) { +TEST(printf_test, width) { EXPECT_PRINTF(" abc", "%5s", "abc"); // Width cannot be specified twice. EXPECT_THROW_MSG(test_sprintf("%5-5d", 42), format_error, "invalid type specifier"); - EXPECT_THROW_MSG(test_sprintf(format("%{}d", BIG_NUM), 42), format_error, + EXPECT_THROW_MSG(test_sprintf(format("%{}d", big_num), 42), format_error, "number is too big"); - EXPECT_THROW_MSG(test_sprintf(format("%1${}d", BIG_NUM), 42), format_error, + EXPECT_THROW_MSG(test_sprintf(format("%1${}d", big_num), 42), format_error, "number is too big"); } -TEST(PrintfTest, DynamicWidth) { +TEST(printf_test, dynamic_width) { EXPECT_EQ(" 42", test_sprintf("%*d", 5, 42)); EXPECT_EQ("42 ", test_sprintf("%*d", -5, 42)); EXPECT_THROW_MSG(test_sprintf("%*d", 5.0, 42), format_error, "width is not integer"); EXPECT_THROW_MSG(test_sprintf("%*d"), format_error, "argument not found"); - EXPECT_THROW_MSG(test_sprintf("%*d", BIG_NUM, 42), format_error, + EXPECT_THROW_MSG(test_sprintf("%*d", big_num, 42), format_error, "number is too big"); } -TEST(PrintfTest, IntPrecision) { +TEST(printf_test, int_precision) { EXPECT_PRINTF("00042", "%.5d", 42); EXPECT_PRINTF("-00042", "%.5d", -42); EXPECT_PRINTF("00042", "%.5x", 0x42); @@ -277,8 +279,8 @@ TEST(PrintfTest, IntPrecision) { EXPECT_PRINTF("00042 ", "%-#10.5o", 042); } -TEST(PrintfTest, FloatPrecision) { - char buffer[BUFFER_SIZE]; +TEST(printf_test, float_precision) { + char buffer[256]; safe_sprintf(buffer, "%.3e", 1234.5678); EXPECT_PRINTF(buffer, "%.3e", 1234.5678); EXPECT_PRINTF("1234.568", "%.3f", 1234.5678); @@ -287,22 +289,22 @@ TEST(PrintfTest, FloatPrecision) { EXPECT_PRINTF(buffer, "%.3a", 1234.5678); } -TEST(PrintfTest, StringPrecision) { +TEST(printf_test, string_precision) { char test[] = {'H', 'e', 'l', 'l', 'o'}; EXPECT_EQ(fmt::sprintf("%.4s", test), "Hell"); } -TEST(PrintfTest, IgnorePrecisionForNonNumericArg) { +TEST(printf_test, ignore_precision_for_non_numeric_arg) { EXPECT_PRINTF("abc", "%.5s", "abc"); } -TEST(PrintfTest, DynamicPrecision) { +TEST(printf_test, dynamic_precision) { EXPECT_EQ("00042", test_sprintf("%.*d", 5, 42)); EXPECT_EQ("42", test_sprintf("%.*d", -5, 42)); EXPECT_THROW_MSG(test_sprintf("%.*d", 5.0, 42), format_error, "precision is not integer"); EXPECT_THROW_MSG(test_sprintf("%.*d"), format_error, "argument not found"); - EXPECT_THROW_MSG(test_sprintf("%.*d", BIG_NUM, 42), format_error, + EXPECT_THROW_MSG(test_sprintf("%.*d", big_num, 42), format_error, "number is too big"); if (sizeof(long long) != sizeof(int)) { long long prec = static_cast<long long>(INT_MIN) - 1; @@ -325,7 +327,7 @@ SPECIALIZE_MAKE_SIGNED(unsigned long long, long long); // Test length format specifier ``length_spec``. template <typename T, typename U> -void TestLength(const char* length_spec, U value) { +void test_length(const char* length_spec, U value) { long long signed_value = 0; unsigned long long unsigned_value = 0; // Apply integer promotion to the argument. @@ -364,54 +366,54 @@ void TestLength(const char* length_spec, U value) { EXPECT_PRINTF(os.str(), fmt::format("%{}X", length_spec), value); } -template <typename T> void TestLength(const char* length_spec) { +template <typename T> void test_length(const char* length_spec) { T min = std::numeric_limits<T>::min(), max = max_value<T>(); - TestLength<T>(length_spec, 42); - TestLength<T>(length_spec, -42); - TestLength<T>(length_spec, min); - TestLength<T>(length_spec, max); + test_length<T>(length_spec, 42); + test_length<T>(length_spec, -42); + test_length<T>(length_spec, min); + test_length<T>(length_spec, max); long long long_long_min = std::numeric_limits<long long>::min(); if (static_cast<long long>(min) > long_long_min) - TestLength<T>(length_spec, static_cast<long long>(min) - 1); + test_length<T>(length_spec, static_cast<long long>(min) - 1); unsigned long long long_long_max = max_value<long long>(); if (static_cast<unsigned long long>(max) < long_long_max) - TestLength<T>(length_spec, static_cast<long long>(max) + 1); - TestLength<T>(length_spec, std::numeric_limits<short>::min()); - TestLength<T>(length_spec, max_value<unsigned short>()); - TestLength<T>(length_spec, std::numeric_limits<int>::min()); - TestLength<T>(length_spec, max_value<int>()); - TestLength<T>(length_spec, std::numeric_limits<unsigned>::min()); - TestLength<T>(length_spec, max_value<unsigned>()); - TestLength<T>(length_spec, std::numeric_limits<long long>::min()); - TestLength<T>(length_spec, max_value<long long>()); - TestLength<T>(length_spec, std::numeric_limits<unsigned long long>::min()); - TestLength<T>(length_spec, max_value<unsigned long long>()); -} - -TEST(PrintfTest, Length) { - TestLength<char>("hh"); - TestLength<signed char>("hh"); - TestLength<unsigned char>("hh"); - TestLength<short>("h"); - TestLength<unsigned short>("h"); - TestLength<long>("l"); - TestLength<unsigned long>("l"); - TestLength<long long>("ll"); - TestLength<unsigned long long>("ll"); - TestLength<intmax_t>("j"); - TestLength<size_t>("z"); - TestLength<std::ptrdiff_t>("t"); + test_length<T>(length_spec, static_cast<long long>(max) + 1); + test_length<T>(length_spec, std::numeric_limits<short>::min()); + test_length<T>(length_spec, max_value<unsigned short>()); + test_length<T>(length_spec, std::numeric_limits<int>::min()); + test_length<T>(length_spec, max_value<int>()); + test_length<T>(length_spec, std::numeric_limits<unsigned>::min()); + test_length<T>(length_spec, max_value<unsigned>()); + test_length<T>(length_spec, std::numeric_limits<long long>::min()); + test_length<T>(length_spec, max_value<long long>()); + test_length<T>(length_spec, std::numeric_limits<unsigned long long>::min()); + test_length<T>(length_spec, max_value<unsigned long long>()); +} + +TEST(printf_test, length) { + test_length<char>("hh"); + test_length<signed char>("hh"); + test_length<unsigned char>("hh"); + test_length<short>("h"); + test_length<unsigned short>("h"); + test_length<long>("l"); + test_length<unsigned long>("l"); + test_length<long long>("ll"); + test_length<unsigned long long>("ll"); + test_length<intmax_t>("j"); + test_length<size_t>("z"); + test_length<std::ptrdiff_t>("t"); long double max = max_value<long double>(); EXPECT_PRINTF(fmt::format("{:.6}", max), "%g", max); EXPECT_PRINTF(fmt::format("{:.6}", max), "%Lg", max); } -TEST(PrintfTest, Bool) { +TEST(printf_test, bool) { EXPECT_PRINTF("1", "%d", true); EXPECT_PRINTF("true", "%s", true); } -TEST(PrintfTest, Int) { +TEST(printf_test, int) { EXPECT_PRINTF("-42", "%d", -42); EXPECT_PRINTF("-42", "%i", -42); unsigned u = 0 - 42u; @@ -421,20 +423,20 @@ TEST(PrintfTest, Int) { EXPECT_PRINTF(fmt::format("{:X}", u), "%X", -42); } -TEST(PrintfTest, long_long) { +TEST(printf_test, long_long) { // fmt::printf allows passing long long arguments to %d without length // specifiers. long long max = max_value<long long>(); EXPECT_PRINTF(fmt::format("{}", max), "%d", max); } -TEST(PrintfTest, Float) { +TEST(printf_test, float) { EXPECT_PRINTF("392.650000", "%f", 392.65); EXPECT_PRINTF("392.65", "%.2f", 392.65); EXPECT_PRINTF("392.6", "%.1f", 392.65); EXPECT_PRINTF("393", "%.f", 392.65); EXPECT_PRINTF("392.650000", "%F", 392.65); - char buffer[BUFFER_SIZE]; + char buffer[256]; safe_sprintf(buffer, "%e", 392.65); EXPECT_PRINTF(buffer, "%e", 392.65); safe_sprintf(buffer, "%E", 392.65); @@ -450,7 +452,7 @@ TEST(PrintfTest, Float) { EXPECT_EQ(buffer, format("{:A}", -392.65)); } -TEST(PrintfTest, Inf) { +TEST(printf_test, inf) { double inf = std::numeric_limits<double>::infinity(); for (const char* type = "fega"; *type; ++type) { EXPECT_PRINTF("inf", fmt::format("%{}", *type), inf); @@ -459,7 +461,7 @@ TEST(PrintfTest, Inf) { } } -TEST(PrintfTest, Char) { +TEST(printf_test, char) { EXPECT_PRINTF("x", "%c", 'x'); int max = max_value<int>(); EXPECT_PRINTF(fmt::format("{}", static_cast<char>(max)), "%c", max); @@ -468,7 +470,7 @@ TEST(PrintfTest, Char) { EXPECT_PRINTF(fmt::format(L"{}", static_cast<wchar_t>(max)), L"%c", max); } -TEST(PrintfTest, String) { +TEST(printf_test, string) { EXPECT_PRINTF("abc", "%s", "abc"); const char* null_str = nullptr; EXPECT_PRINTF("(null)", "%s", null_str); @@ -479,13 +481,7 @@ TEST(PrintfTest, String) { EXPECT_PRINTF(L" (null)", L"%10s", null_wstr); } -TEST(PrintfTest, UCharString) { - unsigned char str[] = "test"; - unsigned char* pstr = str; - EXPECT_EQ("test", fmt::sprintf("%s", pstr)); -} - -TEST(PrintfTest, Pointer) { +TEST(printf_test, pointer) { int n; void* p = &n; EXPECT_PRINTF(fmt::format("{}", p), "%p", p); @@ -508,20 +504,16 @@ TEST(PrintfTest, Pointer) { EXPECT_PRINTF(L"(nil)", L"%p", null_wstr); } -TEST(PrintfTest, Location) { - // TODO: test %n -} - enum test_enum { answer = 42 }; -TEST(PrintfTest, Enum) { +TEST(printf_test, enum) { EXPECT_PRINTF("42", "%d", answer); volatile test_enum volatile_enum = answer; EXPECT_PRINTF("42", "%d", volatile_enum); } #if FMT_USE_FCNTL -TEST(PrintfTest, Examples) { +TEST(printf_test, examples) { const char* weekday = "Thursday"; const char* month = "August"; int day = 21; @@ -529,7 +521,7 @@ TEST(PrintfTest, Examples) { "Thursday, 21 August"); } -TEST(PrintfTest, PrintfError) { +TEST(printf_test, printf_error) { fmt::file read_end, write_end; fmt::file::pipe(read_end, write_end); int result = fmt::fprintf(read_end.fdopen("r").get(), "test"); @@ -537,26 +529,20 @@ TEST(PrintfTest, PrintfError) { } #endif -TEST(PrintfTest, WideString) { EXPECT_EQ(L"abc", fmt::sprintf(L"%s", L"abc")); } - -TEST(PrintfTest, PrintfCustom) { - EXPECT_EQ("abc", test_sprintf("%s", TestString("abc"))); +TEST(printf_test, wide_string) { + EXPECT_EQ(L"abc", fmt::sprintf(L"%s", L"abc")); } -TEST(PrintfTest, OStream) { - std::ostringstream os; - int ret = fmt::fprintf(os, "Don't %s!", "panic"); - EXPECT_EQ("Don't panic!", os.str()); - EXPECT_EQ(12, ret); +TEST(printf_test, printf_custom) { + EXPECT_EQ("abc", test_sprintf("%s", test_string("abc"))); } -TEST(PrintfTest, VPrintf) { +TEST(printf_test, vprintf) { fmt::format_arg_store<fmt::printf_context, int> as{42}; fmt::basic_format_args<fmt::printf_context> args(as); EXPECT_EQ(fmt::vsprintf("%d", args), "42"); EXPECT_WRITE(stdout, fmt::vprintf("%d", args), "42"); EXPECT_WRITE(stdout, fmt::vfprintf(stdout, "%d", args), "42"); - EXPECT_WRITE(stdout, fmt::vfprintf(std::cout, "%d", args), "42"); } template <typename... Args> @@ -564,15 +550,15 @@ void check_format_string_regression(fmt::string_view s, const Args&... args) { fmt::sprintf(s, args...); } -TEST(PrintfTest, CheckFormatStringRegression) { +TEST(printf_test, check_format_string_regression) { check_format_string_regression("%c%s", 'x', ""); } -TEST(PrintfTest, FixedLargeExponent) { +TEST(printf_test, fixed_large_exponent) { EXPECT_EQ("1000000000000000000000", fmt::sprintf("%.*f", -13, 1e21)); } -TEST(PrintfTest, VSPrintfMakeArgsExample) { +TEST(printf_test, vsprintf_make_args_example) { fmt::format_arg_store<fmt::printf_context, int, const char*> as{42, "something"}; fmt::basic_format_args<fmt::printf_context> args(as); @@ -581,15 +567,12 @@ TEST(PrintfTest, VSPrintfMakeArgsExample) { fmt::basic_format_args<fmt::printf_context> args2(as2); EXPECT_EQ("[42] something happened", fmt::vsprintf("[%d] %s happened", args2)); - // The older gcc versions can't cast the return value. -#if !defined(__GNUC__) || (__GNUC__ > 4) EXPECT_EQ("[42] something happened", fmt::vsprintf("[%d] %s happened", {fmt::make_printf_args(42, "something")})); -#endif } -TEST(PrintfTest, VSPrintfMakeWArgsExample) { +TEST(printf_test, vsprintf_make_wargs_example) { fmt::format_arg_store<fmt::wprintf_context, int, const wchar_t*> as{ 42, L"something"}; fmt::basic_format_args<fmt::wprintf_context> args(as); @@ -599,30 +582,7 @@ TEST(PrintfTest, VSPrintfMakeWArgsExample) { fmt::basic_format_args<fmt::wprintf_context> args2(as2); EXPECT_EQ(L"[42] something happened", fmt::vsprintf(L"[%d] %s happened", args2)); - // the older gcc versions can't cast the return value -#if !defined(__GNUC__) || (__GNUC__ > 4) EXPECT_EQ(L"[42] something happened", fmt::vsprintf(L"[%d] %s happened", {fmt::make_wprintf_args(42, L"something")})); -#endif -} - -TEST(PrintfTest, PrintfDetermineOutputSize) { - using backit = std::back_insert_iterator<std::vector<char>>; - using truncated_printf_context = - fmt::basic_printf_context<fmt::detail::truncating_iterator<backit>, char>; - - auto v = std::vector<char>{}; - auto it = std::back_inserter(v); - - const auto format_string = "%s"; - const auto format_arg = "Hello"; - const auto expected_size = fmt::sprintf(format_string, format_arg).size(); - - EXPECT_EQ((truncated_printf_context( - fmt::detail::truncating_iterator<backit>(it, 0), format_string, - fmt::make_format_args<truncated_printf_context>(format_arg)) - .format() - .count()), - expected_size); } |