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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:54:28 +0000
commite6918187568dbd01842d8d1d2c808ce16a894239 (patch)
tree64f88b554b444a49f656b6c656111a145cbbaa28 /src/fmt/test/printf-test.cc
parentInitial commit. (diff)
downloadceph-e6918187568dbd01842d8d1d2c808ce16a894239.tar.xz
ceph-e6918187568dbd01842d8d1d2c808ce16a894239.zip
Adding upstream version 18.2.2.upstream/18.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/fmt/test/printf-test.cc')
-rw-r--r--src/fmt/test/printf-test.cc584
1 files changed, 584 insertions, 0 deletions
diff --git a/src/fmt/test/printf-test.cc b/src/fmt/test/printf-test.cc
new file mode 100644
index 000000000..383ffb83b
--- /dev/null
+++ b/src/fmt/test/printf-test.cc
@@ -0,0 +1,584 @@
+// Formatting library for C++ - printf tests
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#include "fmt/printf.h"
+
+#include <cctype>
+#include <climits>
+#include <cstring>
+
+#include "fmt/xchar.h"
+#include "gtest-extra.h"
+#include "util.h"
+
+using fmt::format;
+using fmt::format_error;
+using fmt::detail::max_value;
+
+const unsigned big_num = INT_MAX + 1u;
+
+// Makes format string argument positional.
+static std::string make_positional(fmt::string_view format) {
+ std::string s(format.data(), format.size());
+ s.replace(s.find('%'), 1, "%1$");
+ return s;
+}
+
+static std::wstring make_positional(fmt::basic_string_view<wchar_t> format) {
+ std::wstring s(format.data(), format.size());
+ s.replace(s.find(L'%'), 1, L"%1$");
+ return s;
+}
+
+// A wrapper around fmt::sprintf to workaround bogus warnings about invalid
+// format strings in MSVC.
+template <typename... Args>
+std::string test_sprintf(fmt::string_view format, const Args&... args) {
+ return fmt::sprintf(format, args...);
+}
+template <typename... Args>
+std::wstring test_sprintf(fmt::basic_string_view<wchar_t> format,
+ const Args&... args) {
+ return fmt::sprintf(format, args...);
+}
+
+#define EXPECT_PRINTF(expected_output, format, arg) \
+ EXPECT_EQ(expected_output, test_sprintf(format, arg)) \
+ << "format: " << format; \
+ EXPECT_EQ(expected_output, fmt::sprintf(make_positional(format), arg))
+
+TEST(printf_test, no_args) {
+ EXPECT_EQ("test", test_sprintf("test"));
+ EXPECT_EQ(L"test", fmt::sprintf(L"test"));
+}
+
+TEST(printf_test, escape) {
+ EXPECT_EQ("%", test_sprintf("%%"));
+ EXPECT_EQ("before %", test_sprintf("before %%"));
+ EXPECT_EQ("% after", test_sprintf("%% after"));
+ EXPECT_EQ("before % after", test_sprintf("before %% after"));
+ EXPECT_EQ("%s", test_sprintf("%%s"));
+ EXPECT_EQ(L"%", fmt::sprintf(L"%%"));
+ EXPECT_EQ(L"before %", fmt::sprintf(L"before %%"));
+ EXPECT_EQ(L"% after", fmt::sprintf(L"%% after"));
+ EXPECT_EQ(L"before % after", fmt::sprintf(L"before %% after"));
+ EXPECT_EQ(L"%s", fmt::sprintf(L"%%s"));
+}
+
+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$d after", 42));
+ EXPECT_EQ("before 42 after", test_sprintf("before %1$d after", 42));
+ EXPECT_EQ("answer = 42", test_sprintf("%1$s = %2$d", "answer", 42));
+ EXPECT_EQ("42 is the answer", test_sprintf("%2$d is the %1$s", "answer", 42));
+ EXPECT_EQ("abracadabra", test_sprintf("%1$s%2$s%1$s", "abra", "cad"));
+}
+
+TEST(printf_test, automatic_arg_indexing) {
+ EXPECT_EQ("abc", test_sprintf("%c%c%c", 'a', 'b', 'c'));
+}
+
+TEST(printf_test, number_is_too_big_in_arg_index) {
+ EXPECT_THROW_MSG(test_sprintf(format("%{}$", big_num)), format_error,
+ "argument not found");
+ EXPECT_THROW_MSG(test_sprintf(format("%{}$d", big_num)), format_error,
+ "argument not found");
+}
+
+TEST(printf_test, switch_arg_indexing) {
+ EXPECT_THROW_MSG(test_sprintf("%1$d%", 1, 2), format_error,
+ "cannot switch from manual to automatic argument indexing");
+ EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", big_num), 1, 2),
+ format_error, "number is too big");
+ EXPECT_THROW_MSG(test_sprintf("%1$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,
+ "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),
+ format_error, "number is too big");
+ EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", big_num), 1, 2),
+ format_error, "number is too big");
+}
+
+TEST(printf_test, invalid_arg_index) {
+ EXPECT_THROW_MSG(test_sprintf("%0$d", 42), format_error,
+ "argument not found");
+ EXPECT_THROW_MSG(test_sprintf("%2$d", 42), format_error,
+ "argument not found");
+ EXPECT_THROW_MSG(test_sprintf(format("%{}$d", INT_MAX), 42), format_error,
+ "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,
+ "argument not found");
+}
+
+TEST(printf_test, default_align_right) {
+ EXPECT_PRINTF(" 42", "%5d", 42);
+ EXPECT_PRINTF(" abc", "%5s", "abc");
+}
+
+TEST(printf_test, zero_flag) {
+ EXPECT_PRINTF("00042", "%05d", 42);
+ EXPECT_PRINTF("-0042", "%05d", -42);
+
+ EXPECT_PRINTF("00042", "%05d", 42);
+ EXPECT_PRINTF("-0042", "%05d", -42);
+ EXPECT_PRINTF("-004.2", "%06g", -4.2);
+
+ EXPECT_PRINTF("+00042", "%00+6d", 42);
+
+ EXPECT_PRINTF(" 42", "%05.d", 42);
+ EXPECT_PRINTF(" 0042", "%05.4d", 42);
+
+ // '0' flag is ignored for non-numeric types.
+ EXPECT_PRINTF(" x", "%05c", 'x');
+}
+
+TEST(printf_test, plus_flag) {
+ EXPECT_PRINTF("+42", "%+d", 42);
+ EXPECT_PRINTF("-42", "%+d", -42);
+ EXPECT_PRINTF("+0042", "%+05d", 42);
+ EXPECT_PRINTF("+0042", "%0++5d", 42);
+
+ // '+' flag is ignored for non-numeric types.
+ EXPECT_PRINTF("x", "%+c", 'x');
+
+ // '+' flag wins over space flag
+ EXPECT_PRINTF("+42", "%+ d", 42);
+ EXPECT_PRINTF("-42", "%+ d", -42);
+ EXPECT_PRINTF("+42", "% +d", 42);
+ EXPECT_PRINTF("-42", "% +d", -42);
+ EXPECT_PRINTF("+0042", "% +05d", 42);
+ EXPECT_PRINTF("+0042", "%0+ 5d", 42);
+
+ // '+' flag and space flag are both ignored for non-numeric types.
+ EXPECT_PRINTF("x", "%+ c", 'x');
+ EXPECT_PRINTF("x", "% +c", 'x');
+}
+
+TEST(printf_test, minus_flag) {
+ EXPECT_PRINTF("abc ", "%-5s", "abc");
+ EXPECT_PRINTF("abc ", "%0--5s", "abc");
+
+ EXPECT_PRINTF("7 ", "%-5d", 7);
+ EXPECT_PRINTF("97 ", "%-5hhi", 'a');
+ EXPECT_PRINTF("a ", "%-5c", 'a');
+
+ // '0' flag is ignored if '-' flag is given
+ EXPECT_PRINTF("7 ", "%-05d", 7);
+ EXPECT_PRINTF("7 ", "%0-5d", 7);
+ EXPECT_PRINTF("a ", "%-05c", 'a');
+ EXPECT_PRINTF("a ", "%0-5c", 'a');
+ EXPECT_PRINTF("97 ", "%-05hhi", 'a');
+ EXPECT_PRINTF("97 ", "%0-5hhi", 'a');
+
+ // '-' and space flag don't interfere
+ EXPECT_PRINTF(" 42", "%- d", 42);
+}
+
+TEST(printf_test, space_flag) {
+ EXPECT_PRINTF(" 42", "% d", 42);
+ EXPECT_PRINTF("-42", "% d", -42);
+ EXPECT_PRINTF(" 0042", "% 05d", 42);
+ EXPECT_PRINTF(" 0042", "%0 5d", 42);
+
+ // ' ' flag is ignored for non-numeric types.
+ EXPECT_PRINTF("x", "% c", 'x');
+}
+
+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);
+
+ EXPECT_PRINTF("0x42", "%#x", 0x42);
+ EXPECT_PRINTF("0X42", "%#X", 0x42);
+ EXPECT_PRINTF(fmt::format("0x{:x}", static_cast<unsigned>(-0x42)), "%#x",
+ -0x42);
+ EXPECT_PRINTF("0", "%#x", 0);
+
+ EXPECT_PRINTF("0x0042", "%#06x", 0x42);
+ EXPECT_PRINTF("0x0042", "%0##6x", 0x42);
+
+ EXPECT_PRINTF("-42.000000", "%#f", -42.0);
+ EXPECT_PRINTF("-42.000000", "%#F", -42.0);
+
+ char buffer[256];
+ safe_sprintf(buffer, "%#e", -42.0);
+ EXPECT_PRINTF(buffer, "%#e", -42.0);
+ safe_sprintf(buffer, "%#E", -42.0);
+ EXPECT_PRINTF(buffer, "%#E", -42.0);
+
+ EXPECT_PRINTF("-42.0000", "%#g", -42.0);
+ EXPECT_PRINTF("-42.0000", "%#G", -42.0);
+
+ safe_sprintf(buffer, "%#a", 16.0);
+ EXPECT_PRINTF(buffer, "%#a", 16.0);
+ safe_sprintf(buffer, "%#A", 16.0);
+ EXPECT_PRINTF(buffer, "%#A", 16.0);
+
+ // '#' flag is ignored for non-numeric types.
+ EXPECT_PRINTF("x", "%#c", 'x');
+}
+
+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,
+ "number is too big");
+ EXPECT_THROW_MSG(test_sprintf(format("%1${}d", big_num), 42), format_error,
+ "number is too big");
+}
+
+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,
+ "number is too big");
+}
+
+TEST(printf_test, int_precision) {
+ EXPECT_PRINTF("00042", "%.5d", 42);
+ EXPECT_PRINTF("-00042", "%.5d", -42);
+ EXPECT_PRINTF("00042", "%.5x", 0x42);
+ EXPECT_PRINTF("0x00042", "%#.5x", 0x42);
+ EXPECT_PRINTF("00042", "%.5o", 042);
+ EXPECT_PRINTF("00042", "%#.5o", 042);
+
+ EXPECT_PRINTF(" 00042", "%7.5d", 42);
+ EXPECT_PRINTF(" 00042", "%7.5x", 0x42);
+ EXPECT_PRINTF(" 0x00042", "%#10.5x", 0x42);
+ EXPECT_PRINTF(" 00042", "%7.5o", 042);
+ EXPECT_PRINTF(" 00042", "%#10.5o", 042);
+
+ EXPECT_PRINTF("00042 ", "%-7.5d", 42);
+ EXPECT_PRINTF("00042 ", "%-7.5x", 0x42);
+ EXPECT_PRINTF("0x00042 ", "%-#10.5x", 0x42);
+ EXPECT_PRINTF("00042 ", "%-7.5o", 042);
+ EXPECT_PRINTF("00042 ", "%-#10.5o", 042);
+}
+
+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);
+ EXPECT_PRINTF("1.23e+03", "%.3g", 1234.5678);
+ safe_sprintf(buffer, "%.3a", 1234.5678);
+ EXPECT_PRINTF(buffer, "%.3a", 1234.5678);
+}
+
+TEST(printf_test, string_precision) {
+ char test[] = {'H', 'e', 'l', 'l', 'o'};
+ EXPECT_EQ(fmt::sprintf("%.4s", test), "Hell");
+}
+
+TEST(printf_test, ignore_precision_for_non_numeric_arg) {
+ EXPECT_PRINTF("abc", "%.5s", "abc");
+}
+
+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,
+ "number is too big");
+ if (sizeof(long long) != sizeof(int)) {
+ long long prec = static_cast<long long>(INT_MIN) - 1;
+ EXPECT_THROW_MSG(test_sprintf("%.*d", prec, 42), format_error,
+ "number is too big");
+ }
+}
+
+template <typename T> struct make_signed { typedef T type; };
+
+#define SPECIALIZE_MAKE_SIGNED(T, S) \
+ template <> struct make_signed<T> { typedef S type; }
+
+SPECIALIZE_MAKE_SIGNED(char, signed char);
+SPECIALIZE_MAKE_SIGNED(unsigned char, signed char);
+SPECIALIZE_MAKE_SIGNED(unsigned short, short);
+SPECIALIZE_MAKE_SIGNED(unsigned, int);
+SPECIALIZE_MAKE_SIGNED(unsigned long, long);
+SPECIALIZE_MAKE_SIGNED(unsigned long long, long long);
+
+// Test length format specifier ``length_spec``.
+template <typename T, typename U>
+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.
+ unsigned long long max = max_value<U>();
+ using fmt::detail::const_check;
+ if (const_check(max <= static_cast<unsigned>(max_value<int>()))) {
+ signed_value = static_cast<int>(value);
+ unsigned_value = static_cast<unsigned long long>(value);
+ } else if (const_check(max <= max_value<unsigned>())) {
+ signed_value = static_cast<unsigned>(value);
+ unsigned_value = static_cast<unsigned long long>(value);
+ }
+ if (sizeof(U) <= sizeof(int) && sizeof(int) < sizeof(T)) {
+ signed_value = static_cast<long long>(value);
+ unsigned_value = static_cast<unsigned long long>(
+ static_cast<typename std::make_unsigned<unsigned>::type>(value));
+ } else {
+ signed_value = static_cast<typename make_signed<T>::type>(value);
+ unsigned_value = static_cast<typename std::make_unsigned<T>::type>(value);
+ }
+ std::ostringstream os;
+ os << signed_value;
+ EXPECT_PRINTF(os.str(), fmt::format("%{}d", length_spec), value);
+ EXPECT_PRINTF(os.str(), fmt::format("%{}i", length_spec), value);
+ os.str("");
+ os << unsigned_value;
+ EXPECT_PRINTF(os.str(), fmt::format("%{}u", length_spec), value);
+ os.str("");
+ os << std::oct << unsigned_value;
+ EXPECT_PRINTF(os.str(), fmt::format("%{}o", length_spec), value);
+ os.str("");
+ os << std::hex << unsigned_value;
+ EXPECT_PRINTF(os.str(), fmt::format("%{}x", length_spec), value);
+ os.str("");
+ os << std::hex << std::uppercase << unsigned_value;
+ EXPECT_PRINTF(os.str(), fmt::format("%{}X", length_spec), value);
+}
+
+template <typename T> void test_length(const char* length_spec) {
+ T min = std::numeric_limits<T>::min(), max = max_value<T>();
+ 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)
+ 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)
+ 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(printf_test, bool) {
+ EXPECT_PRINTF("1", "%d", true);
+ EXPECT_PRINTF("true", "%s", true);
+}
+
+TEST(printf_test, int) {
+ EXPECT_PRINTF("-42", "%d", -42);
+ 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) {
+ fmt::file read_end, write_end;
+ fmt::file::pipe(read_end, write_end);
+ int result = fmt::fprintf(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) {
+ 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");
+}
+
+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, 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);
+ EXPECT_EQ("[42] something happened", fmt::vsprintf("[%d] %s happened", args));
+ auto as2 = fmt::make_printf_args(42, "something");
+ fmt::basic_format_args<fmt::printf_context> args2(as2);
+ EXPECT_EQ("[42] something happened",
+ fmt::vsprintf("[%d] %s happened", args2));
+ EXPECT_EQ("[42] something happened",
+ fmt::vsprintf("[%d] %s happened",
+ {fmt::make_printf_args(42, "something")}));
+}
+
+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);
+ EXPECT_EQ(L"[42] something happened",
+ fmt::vsprintf(L"[%d] %s happened", args));
+ auto as2 = fmt::make_wprintf_args(42, L"something");
+ fmt::basic_format_args<fmt::wprintf_context> args2(as2);
+ EXPECT_EQ(L"[42] something happened",
+ fmt::vsprintf(L"[%d] %s happened", args2));
+ EXPECT_EQ(L"[42] something happened",
+ fmt::vsprintf(L"[%d] %s happened",
+ {fmt::make_wprintf_args(42, L"something")}));
+}