565 lines
19 KiB
C++
565 lines
19 KiB
C++
// Formatting library for C++ - printf 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 "fmt/printf.h"
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#include <cctype>
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#include <climits>
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#include <cstring>
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#include "fmt/xchar.h"
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#include "gtest-extra.h"
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#include "util.h"
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using fmt::format;
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using fmt::format_error;
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using fmt::detail::max_value;
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const unsigned big_num = INT_MAX + 1u;
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// Makes format string argument positional.
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static std::string make_positional(fmt::string_view format) {
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std::string s(format.data(), format.size());
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s.replace(s.find('%'), 1, "%1$");
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return s;
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}
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static std::wstring make_positional(fmt::basic_string_view<wchar_t> format) {
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std::wstring s(format.data(), format.size());
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s.replace(s.find(L'%'), 1, L"%1$");
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return s;
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}
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// A wrapper around fmt::sprintf to workaround bogus warnings about invalid
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// format strings in MSVC.
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template <typename... Args>
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std::string test_sprintf(fmt::string_view format, const Args&... args) {
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return fmt::sprintf(format, args...);
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}
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template <typename... Args>
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std::wstring test_sprintf(fmt::basic_string_view<wchar_t> format,
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const Args&... args) {
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return fmt::sprintf(format, args...);
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}
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#define EXPECT_PRINTF(expected_output, format, arg) \
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EXPECT_EQ(expected_output, test_sprintf(format, arg)) \
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<< "format: " << format; \
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EXPECT_EQ(expected_output, fmt::sprintf(make_positional(format), arg))
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TEST(printf_test, no_args) {
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EXPECT_EQ("test", test_sprintf("test"));
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EXPECT_EQ(L"test", fmt::sprintf(L"test"));
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}
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TEST(printf_test, escape) {
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EXPECT_EQ("%", test_sprintf("%%"));
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EXPECT_EQ("before %", test_sprintf("before %%"));
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EXPECT_EQ("% after", test_sprintf("%% after"));
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EXPECT_EQ("before % after", test_sprintf("before %% after"));
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EXPECT_EQ("%s", test_sprintf("%%s"));
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EXPECT_EQ(L"%", fmt::sprintf(L"%%"));
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EXPECT_EQ(L"before %", fmt::sprintf(L"before %%"));
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EXPECT_EQ(L"% after", fmt::sprintf(L"%% after"));
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EXPECT_EQ(L"before % after", fmt::sprintf(L"before %% after"));
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EXPECT_EQ(L"%s", fmt::sprintf(L"%%s"));
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}
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TEST(printf_test, positional_args) {
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EXPECT_EQ("42", test_sprintf("%1$d", 42));
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EXPECT_EQ("before 42", test_sprintf("before %1$d", 42));
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EXPECT_EQ("42 after", test_sprintf("%1$d after", 42));
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EXPECT_EQ("before 42 after", test_sprintf("before %1$d after", 42));
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EXPECT_EQ("answer = 42", test_sprintf("%1$s = %2$d", "answer", 42));
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EXPECT_EQ("42 is the answer", test_sprintf("%2$d is the %1$s", "answer", 42));
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EXPECT_EQ("abracadabra", test_sprintf("%1$s%2$s%1$s", "abra", "cad"));
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}
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TEST(printf_test, automatic_arg_indexing) {
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EXPECT_EQ("abc", test_sprintf("%c%c%c", 'a', 'b', 'c'));
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}
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TEST(printf_test, number_is_too_big_in_arg_index) {
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EXPECT_THROW_MSG(test_sprintf(format("%{}$", big_num)), format_error,
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"argument not found");
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EXPECT_THROW_MSG(test_sprintf(format("%{}$d", big_num)), format_error,
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"argument not found");
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}
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TEST(printf_test, switch_arg_indexing) {
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EXPECT_THROW_MSG(test_sprintf("%1$d%", 1, 2), format_error,
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"cannot switch from manual to automatic argument indexing");
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EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", big_num), 1, 2),
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format_error, "number is too big");
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EXPECT_THROW_MSG(test_sprintf("%1$d%d", 1, 2), format_error,
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"cannot switch from manual to automatic argument indexing");
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EXPECT_THROW_MSG(test_sprintf("%d%1$", 1, 2), format_error,
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"cannot switch from automatic to manual argument indexing");
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EXPECT_THROW_MSG(test_sprintf(format("%d%{}$d", big_num), 1, 2), format_error,
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"cannot switch from automatic to manual argument indexing");
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EXPECT_THROW_MSG(test_sprintf("%d%1$d", 1, 2), format_error,
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"cannot switch from automatic to manual argument indexing");
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// Indexing errors override width errors.
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EXPECT_THROW_MSG(test_sprintf(format("%d%1${}d", big_num), 1, 2),
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format_error, "number is too big");
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EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", big_num), 1, 2),
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format_error, "number is too big");
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}
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TEST(printf_test, invalid_arg_index) {
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EXPECT_THROW_MSG(test_sprintf("%0$d", 42), format_error,
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"argument not found");
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EXPECT_THROW_MSG(test_sprintf("%2$d", 42), format_error,
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"argument not found");
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EXPECT_THROW_MSG(test_sprintf(format("%{}$d", INT_MAX), 42), format_error,
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"argument not found");
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EXPECT_THROW_MSG(test_sprintf("%2$", 42), format_error, "argument not found");
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EXPECT_THROW_MSG(test_sprintf(format("%{}$d", big_num), 42), format_error,
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"argument not found");
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}
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TEST(printf_test, default_align_right) {
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EXPECT_PRINTF(" 42", "%5d", 42);
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EXPECT_PRINTF(" abc", "%5s", "abc");
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}
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TEST(printf_test, zero_flag) {
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EXPECT_PRINTF("00042", "%05d", 42);
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EXPECT_PRINTF("-0042", "%05d", -42);
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EXPECT_PRINTF("00042", "%05d", 42);
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EXPECT_PRINTF("-0042", "%05d", -42);
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EXPECT_PRINTF("-004.2", "%06g", -4.2);
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EXPECT_PRINTF("+00042", "%00+6d", 42);
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EXPECT_PRINTF(" 42", "%05.d", 42);
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EXPECT_PRINTF(" 0042", "%05.4d", 42);
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// '0' flag is ignored for non-numeric types.
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EXPECT_PRINTF(" x", "%05c", 'x');
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}
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TEST(printf_test, plus_flag) {
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EXPECT_PRINTF("+42", "%+d", 42);
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EXPECT_PRINTF("-42", "%+d", -42);
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EXPECT_PRINTF("+0042", "%+05d", 42);
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EXPECT_PRINTF("+0042", "%0++5d", 42);
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// '+' flag is ignored for non-numeric types.
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EXPECT_PRINTF("x", "%+c", 'x');
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// '+' flag wins over space flag
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EXPECT_PRINTF("+42", "%+ d", 42);
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EXPECT_PRINTF("-42", "%+ d", -42);
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EXPECT_PRINTF("+42", "% +d", 42);
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EXPECT_PRINTF("-42", "% +d", -42);
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EXPECT_PRINTF("+0042", "% +05d", 42);
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EXPECT_PRINTF("+0042", "%0+ 5d", 42);
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// '+' flag and space flag are both ignored for non-numeric types.
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EXPECT_PRINTF("x", "%+ c", 'x');
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EXPECT_PRINTF("x", "% +c", 'x');
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}
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TEST(printf_test, minus_flag) {
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EXPECT_PRINTF("abc ", "%-5s", "abc");
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EXPECT_PRINTF("abc ", "%0--5s", "abc");
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EXPECT_PRINTF("7 ", "%-5d", 7);
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EXPECT_PRINTF("97 ", "%-5hhi", 'a');
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EXPECT_PRINTF("a ", "%-5c", 'a');
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// '0' flag is ignored if '-' flag is given
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EXPECT_PRINTF("7 ", "%-05d", 7);
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EXPECT_PRINTF("7 ", "%0-5d", 7);
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EXPECT_PRINTF("a ", "%-05c", 'a');
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EXPECT_PRINTF("a ", "%0-5c", 'a');
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EXPECT_PRINTF("97 ", "%-05hhi", 'a');
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EXPECT_PRINTF("97 ", "%0-5hhi", 'a');
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// '-' and space flag don't interfere
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EXPECT_PRINTF(" 42", "%- d", 42);
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}
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TEST(printf_test, space_flag) {
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EXPECT_PRINTF(" 42", "% d", 42);
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EXPECT_PRINTF("-42", "% d", -42);
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EXPECT_PRINTF(" 0042", "% 05d", 42);
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EXPECT_PRINTF(" 0042", "%0 5d", 42);
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// ' ' flag is ignored for non-numeric types.
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EXPECT_PRINTF("x", "% c", 'x');
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}
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TEST(printf_test, hash_flag) {
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EXPECT_PRINTF("042", "%#o", 042);
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EXPECT_PRINTF(fmt::format("0{:o}", static_cast<unsigned>(-042)), "%#o", -042);
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EXPECT_PRINTF("0", "%#o", 0);
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EXPECT_PRINTF("0x42", "%#x", 0x42);
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EXPECT_PRINTF("0X42", "%#X", 0x42);
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EXPECT_PRINTF(fmt::format("0x{:x}", static_cast<unsigned>(-0x42)), "%#x",
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-0x42);
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EXPECT_PRINTF("0", "%#x", 0);
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EXPECT_PRINTF("0x0042", "%#06x", 0x42);
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EXPECT_PRINTF("0x0042", "%0##6x", 0x42);
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EXPECT_PRINTF("-42.000000", "%#f", -42.0);
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EXPECT_PRINTF("-42.000000", "%#F", -42.0);
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char buffer[256];
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safe_sprintf(buffer, "%#e", -42.0);
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EXPECT_PRINTF(buffer, "%#e", -42.0);
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safe_sprintf(buffer, "%#E", -42.0);
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EXPECT_PRINTF(buffer, "%#E", -42.0);
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EXPECT_PRINTF("-42.0000", "%#g", -42.0);
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EXPECT_PRINTF("-42.0000", "%#G", -42.0);
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EXPECT_PRINTF("0x1.p+4", "%#a", 16.0);
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EXPECT_PRINTF("0X1.P+4", "%#A", 16.0);
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// '#' flag is ignored for non-numeric types.
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EXPECT_PRINTF("x", "%#c", 'x');
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}
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TEST(printf_test, width) {
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EXPECT_PRINTF(" abc", "%5s", "abc");
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// Width cannot be specified twice.
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EXPECT_THROW_MSG(test_sprintf("%5-5d", 42), format_error,
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"invalid format specifier");
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EXPECT_THROW_MSG(test_sprintf(format("%{}d", big_num), 42), format_error,
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"number is too big");
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EXPECT_THROW_MSG(test_sprintf(format("%1${}d", big_num), 42), format_error,
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"number is too big");
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}
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TEST(printf_test, dynamic_width) {
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EXPECT_EQ(" 42", test_sprintf("%*d", 5, 42));
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EXPECT_EQ("42 ", test_sprintf("%*d", -5, 42));
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EXPECT_THROW_MSG(test_sprintf("%*d", 5.0, 42), format_error,
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"width is not integer");
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EXPECT_THROW_MSG(test_sprintf("%*d"), format_error, "argument not found");
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EXPECT_THROW_MSG(test_sprintf("%*d", big_num, 42), format_error,
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"number is too big");
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}
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TEST(printf_test, int_precision) {
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EXPECT_PRINTF("00042", "%.5d", 42);
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EXPECT_PRINTF("-00042", "%.5d", -42);
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EXPECT_PRINTF("00042", "%.5x", 0x42);
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EXPECT_PRINTF("0x00042", "%#.5x", 0x42);
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EXPECT_PRINTF("00042", "%.5o", 042);
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EXPECT_PRINTF("00042", "%#.5o", 042);
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EXPECT_PRINTF(" 00042", "%7.5d", 42);
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EXPECT_PRINTF(" 00042", "%7.5x", 0x42);
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EXPECT_PRINTF(" 0x00042", "%#10.5x", 0x42);
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EXPECT_PRINTF(" 00042", "%7.5o", 042);
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EXPECT_PRINTF(" 00042", "%#10.5o", 042);
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EXPECT_PRINTF("00042 ", "%-7.5d", 42);
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EXPECT_PRINTF("00042 ", "%-7.5x", 0x42);
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EXPECT_PRINTF("0x00042 ", "%-#10.5x", 0x42);
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EXPECT_PRINTF("00042 ", "%-7.5o", 042);
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EXPECT_PRINTF("00042 ", "%-#10.5o", 042);
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}
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TEST(printf_test, float_precision) {
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char buffer[256];
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safe_sprintf(buffer, "%.3e", 1234.5678);
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EXPECT_PRINTF(buffer, "%.3e", 1234.5678);
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EXPECT_PRINTF("1234.568", "%.3f", 1234.5678);
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EXPECT_PRINTF("1.23e+03", "%.3g", 1234.5678);
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safe_sprintf(buffer, "%.3a", 1234.5678);
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EXPECT_PRINTF(buffer, "%.3a", 1234.5678);
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}
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TEST(printf_test, string_precision) {
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char test[] = {'H', 'e', 'l', 'l', 'o'};
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EXPECT_EQ(fmt::sprintf("%.4s", test), "Hell");
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}
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TEST(printf_test, ignore_precision_for_non_numeric_arg) {
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EXPECT_PRINTF("abc", "%.5s", "abc");
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}
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TEST(printf_test, dynamic_precision) {
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EXPECT_EQ("00042", test_sprintf("%.*d", 5, 42));
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EXPECT_EQ("42", test_sprintf("%.*d", -5, 42));
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EXPECT_THROW_MSG(test_sprintf("%.*d", 5.0, 42), format_error,
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"precision is not integer");
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EXPECT_THROW_MSG(test_sprintf("%.*d"), format_error, "argument not found");
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EXPECT_THROW_MSG(test_sprintf("%.*d", big_num, 42), format_error,
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"number is too big");
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if (sizeof(long long) != sizeof(int)) {
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long long prec = static_cast<long long>(INT_MIN) - 1;
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EXPECT_THROW_MSG(test_sprintf("%.*d", prec, 42), format_error,
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"number is too big");
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}
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}
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template <typename T> struct make_signed {
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using type = T;
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};
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#define SPECIALIZE_MAKE_SIGNED(T, S) \
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template <> struct make_signed<T> { \
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using type = S; \
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}
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SPECIALIZE_MAKE_SIGNED(char, signed char);
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SPECIALIZE_MAKE_SIGNED(unsigned char, signed char);
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SPECIALIZE_MAKE_SIGNED(unsigned short, short);
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SPECIALIZE_MAKE_SIGNED(unsigned, int);
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SPECIALIZE_MAKE_SIGNED(unsigned long, long);
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SPECIALIZE_MAKE_SIGNED(unsigned long long, long long);
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// Test length format specifier ``length_spec``.
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template <typename T, typename U>
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void test_length(const char* length_spec, U value) {
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long long signed_value = 0;
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unsigned long long unsigned_value = 0;
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// Apply integer promotion to the argument.
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unsigned long long max = max_value<U>();
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using fmt::detail::const_check;
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if (const_check(max <= static_cast<unsigned>(max_value<int>()))) {
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signed_value = static_cast<int>(value);
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unsigned_value = static_cast<unsigned long long>(value);
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} else if (const_check(max <= max_value<unsigned>())) {
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signed_value = static_cast<unsigned>(value);
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unsigned_value = static_cast<unsigned long long>(value);
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}
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if (sizeof(U) <= sizeof(int) && sizeof(int) < sizeof(T)) {
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signed_value = static_cast<long long>(value);
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unsigned_value = static_cast<unsigned long long>(
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static_cast<typename std::make_unsigned<unsigned>::type>(value));
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} else {
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signed_value = static_cast<typename make_signed<T>::type>(value);
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unsigned_value = static_cast<typename std::make_unsigned<T>::type>(value);
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}
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std::ostringstream os;
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os << signed_value;
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EXPECT_PRINTF(os.str(), fmt::format("%{}d", length_spec), value);
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EXPECT_PRINTF(os.str(), fmt::format("%{}i", length_spec), value);
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os.str("");
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os << unsigned_value;
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EXPECT_PRINTF(os.str(), fmt::format("%{}u", length_spec), value);
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os.str("");
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os << std::oct << unsigned_value;
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EXPECT_PRINTF(os.str(), fmt::format("%{}o", length_spec), value);
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os.str("");
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os << std::hex << unsigned_value;
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EXPECT_PRINTF(os.str(), fmt::format("%{}x", length_spec), value);
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os.str("");
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os << std::hex << std::uppercase << unsigned_value;
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EXPECT_PRINTF(os.str(), fmt::format("%{}X", length_spec), value);
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}
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template <typename T> void test_length(const char* length_spec) {
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T min = std::numeric_limits<T>::min(), max = max_value<T>();
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test_length<T>(length_spec, 42);
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test_length<T>(length_spec, -42);
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test_length<T>(length_spec, min);
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test_length<T>(length_spec, max);
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long long long_long_min = std::numeric_limits<long long>::min();
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if (static_cast<long long>(min) > long_long_min)
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test_length<T>(length_spec, static_cast<long long>(min) - 1);
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unsigned long long long_long_max = max_value<long long>();
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if (static_cast<unsigned long long>(max) < long_long_max)
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test_length<T>(length_spec, static_cast<long long>(max) + 1);
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test_length<T>(length_spec, std::numeric_limits<short>::min());
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test_length<T>(length_spec, max_value<unsigned short>());
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test_length<T>(length_spec, std::numeric_limits<int>::min());
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test_length<T>(length_spec, max_value<int>());
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test_length<T>(length_spec, std::numeric_limits<unsigned>::min());
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test_length<T>(length_spec, max_value<unsigned>());
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test_length<T>(length_spec, std::numeric_limits<long long>::min());
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test_length<T>(length_spec, max_value<long long>());
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test_length<T>(length_spec, std::numeric_limits<unsigned long long>::min());
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test_length<T>(length_spec, max_value<unsigned long long>());
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}
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TEST(printf_test, length) {
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test_length<char>("hh");
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test_length<signed char>("hh");
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test_length<unsigned char>("hh");
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test_length<short>("h");
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test_length<unsigned short>("h");
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test_length<long>("l");
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test_length<unsigned long>("l");
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test_length<long long>("ll");
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test_length<unsigned long long>("ll");
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test_length<intmax_t>("j");
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test_length<size_t>("z");
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test_length<std::ptrdiff_t>("t");
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long double max = max_value<long double>();
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EXPECT_PRINTF(fmt::format("{:.6}", max), "%g", max);
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EXPECT_PRINTF(fmt::format("{:.6}", max), "%Lg", max);
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}
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TEST(printf_test, bool) { EXPECT_PRINTF("1", "%d", true); }
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TEST(printf_test, int) {
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EXPECT_PRINTF("-42", "%d", -42);
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EXPECT_PRINTF("-42", "%i", -42);
|
|
unsigned u = 0 - 42u;
|
|
EXPECT_PRINTF(fmt::format("{}", u), "%u", -42);
|
|
EXPECT_PRINTF(fmt::format("{:o}", u), "%o", -42);
|
|
EXPECT_PRINTF(fmt::format("{:x}", u), "%x", -42);
|
|
EXPECT_PRINTF(fmt::format("{:X}", u), "%X", -42);
|
|
}
|
|
|
|
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(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[256];
|
|
safe_sprintf(buffer, "%e", 392.65);
|
|
EXPECT_PRINTF(buffer, "%e", 392.65);
|
|
safe_sprintf(buffer, "%E", 392.65);
|
|
EXPECT_PRINTF(buffer, "%E", 392.65);
|
|
EXPECT_PRINTF("392.65", "%g", 392.65);
|
|
EXPECT_PRINTF("392.65", "%G", 392.65);
|
|
EXPECT_PRINTF("392", "%g", 392.0);
|
|
EXPECT_PRINTF("392", "%G", 392.0);
|
|
EXPECT_PRINTF("4.56e-07", "%g", 0.000000456);
|
|
safe_sprintf(buffer, "%a", -392.65);
|
|
EXPECT_EQ(buffer, format("{:a}", -392.65));
|
|
safe_sprintf(buffer, "%A", -392.65);
|
|
EXPECT_EQ(buffer, format("{:A}", -392.65));
|
|
}
|
|
|
|
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);
|
|
char upper = static_cast<char>(std::toupper(*type));
|
|
EXPECT_PRINTF("INF", fmt::format("%{}", upper), inf);
|
|
}
|
|
}
|
|
|
|
TEST(printf_test, char) {
|
|
EXPECT_PRINTF("x", "%c", 'x');
|
|
int max = max_value<int>();
|
|
EXPECT_PRINTF(fmt::format("{}", static_cast<char>(max)), "%c", max);
|
|
// EXPECT_PRINTF("x", "%lc", L'x');
|
|
EXPECT_PRINTF(L"x", L"%c", L'x');
|
|
EXPECT_PRINTF(fmt::format(L"{}", static_cast<wchar_t>(max)), L"%c", max);
|
|
}
|
|
|
|
TEST(printf_test, string) {
|
|
EXPECT_PRINTF("abc", "%s", "abc");
|
|
const char* null_str = nullptr;
|
|
EXPECT_PRINTF("(null)", "%s", null_str);
|
|
EXPECT_PRINTF(" (null)", "%10s", null_str);
|
|
EXPECT_PRINTF(L"abc", L"%s", L"abc");
|
|
const wchar_t* null_wstr = nullptr;
|
|
EXPECT_PRINTF(L"(null)", L"%s", null_wstr);
|
|
EXPECT_PRINTF(L" (null)", L"%10s", null_wstr);
|
|
}
|
|
|
|
TEST(printf_test, pointer) {
|
|
int n;
|
|
void* p = &n;
|
|
EXPECT_PRINTF(fmt::format("{}", p), "%p", p);
|
|
p = nullptr;
|
|
EXPECT_PRINTF("(nil)", "%p", p);
|
|
EXPECT_PRINTF(" (nil)", "%10p", p);
|
|
const char* s = "test";
|
|
EXPECT_PRINTF(fmt::format("{:p}", s), "%p", s);
|
|
const char* null_str = nullptr;
|
|
EXPECT_PRINTF("(nil)", "%p", null_str);
|
|
|
|
p = &n;
|
|
EXPECT_PRINTF(fmt::format(L"{}", p), L"%p", p);
|
|
p = nullptr;
|
|
EXPECT_PRINTF(L"(nil)", L"%p", p);
|
|
EXPECT_PRINTF(L" (nil)", L"%10p", p);
|
|
const wchar_t* w = L"test";
|
|
EXPECT_PRINTF(fmt::format(L"{:p}", w), L"%p", w);
|
|
const wchar_t* null_wstr = nullptr;
|
|
EXPECT_PRINTF(L"(nil)", L"%p", null_wstr);
|
|
}
|
|
|
|
enum test_enum { answer = 42 };
|
|
auto format_as(test_enum e) -> int { return e; }
|
|
|
|
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(printf_test, examples) {
|
|
const char* weekday = "Thursday";
|
|
const char* month = "August";
|
|
int day = 21;
|
|
EXPECT_WRITE(stdout, fmt::printf("%1$s, %3$d %2$s", weekday, month, day),
|
|
"Thursday, 21 August");
|
|
}
|
|
|
|
TEST(printf_test, printf_error) {
|
|
auto pipe = fmt::pipe();
|
|
int result = fmt::fprintf(pipe.read_end.fdopen("r").get(), "test");
|
|
EXPECT_LT(result, 0);
|
|
}
|
|
#endif
|
|
|
|
TEST(printf_test, wide_string) {
|
|
EXPECT_EQ(L"abc", fmt::sprintf(L"%s", L"abc"));
|
|
}
|
|
|
|
TEST(printf_test, vprintf) {
|
|
int n = 42;
|
|
auto store = fmt::make_format_args<fmt::printf_context>(n);
|
|
auto args = fmt::basic_format_args<fmt::printf_context>(store);
|
|
EXPECT_EQ(fmt::vsprintf(fmt::string_view("%d"), args), "42");
|
|
EXPECT_WRITE(stdout, fmt::vfprintf(stdout, fmt::string_view("%d"), args),
|
|
"42");
|
|
}
|
|
|
|
template <typename... Args>
|
|
void check_format_string_regression(fmt::string_view s, const Args&... args) {
|
|
fmt::sprintf(s, args...);
|
|
}
|
|
|
|
TEST(printf_test, check_format_string_regression) {
|
|
check_format_string_regression("%c%s", 'x', "");
|
|
}
|
|
|
|
TEST(printf_test, fixed_large_exponent) {
|
|
EXPECT_EQ("1000000000000000000000", fmt::sprintf("%.*f", -13, 1e21));
|
|
}
|
|
|
|
TEST(printf_test, make_printf_args) {
|
|
int n = 42;
|
|
EXPECT_EQ("[42] something happened",
|
|
fmt::vsprintf(fmt::string_view("[%d] %s happened"),
|
|
{fmt::make_printf_args(n, "something")}));
|
|
EXPECT_EQ(L"[42] something happened",
|
|
fmt::vsprintf(fmt::basic_string_view<wchar_t>(L"[%d] %s happened"),
|
|
{fmt::make_printf_args<wchar_t>(n, L"something")}));
|
|
}
|