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Diffstat (limited to 'third_party/abseil_cpp/absl/strings/str_format_test.cc')
| -rw-r--r-- | third_party/abseil_cpp/absl/strings/str_format_test.cc | 685 |
1 files changed, 685 insertions, 0 deletions
diff --git a/third_party/abseil_cpp/absl/strings/str_format_test.cc b/third_party/abseil_cpp/absl/strings/str_format_test.cc new file mode 100644 index 0000000000..49a68849f0 --- /dev/null +++ b/third_party/abseil_cpp/absl/strings/str_format_test.cc @@ -0,0 +1,685 @@ + +#include "absl/strings/str_format.h" + +#include <cstdarg> +#include <cstdint> +#include <cstdio> +#include <string> + +#include "gmock/gmock.h" +#include "gtest/gtest.h" +#include "absl/strings/str_cat.h" +#include "absl/strings/string_view.h" + +namespace absl { +ABSL_NAMESPACE_BEGIN +namespace { +using str_format_internal::FormatArgImpl; +using str_format_internal::FormatConversionCharSetInternal; + +using FormatEntryPointTest = ::testing::Test; + +TEST_F(FormatEntryPointTest, Format) { + std::string sink; + EXPECT_TRUE(Format(&sink, "A format %d", 123)); + EXPECT_EQ("A format 123", sink); + sink.clear(); + + ParsedFormat<'d'> pc("A format %d"); + EXPECT_TRUE(Format(&sink, pc, 123)); + EXPECT_EQ("A format 123", sink); +} +TEST_F(FormatEntryPointTest, UntypedFormat) { + constexpr const char* formats[] = { + "", + "a", + "%80d", +#if !defined(_MSC_VER) && !defined(__ANDROID__) && !defined(__native_client__) + // MSVC, NaCL and Android don't support positional syntax. + "complicated multipart %% %1$d format %1$0999d", +#endif // _MSC_VER + }; + for (const char* fmt : formats) { + std::string actual; + int i = 123; + FormatArgImpl arg_123(i); + absl::Span<const FormatArgImpl> args(&arg_123, 1); + UntypedFormatSpec format(fmt); + + EXPECT_TRUE(FormatUntyped(&actual, format, args)); + char buf[4096]{}; + snprintf(buf, sizeof(buf), fmt, 123); + EXPECT_EQ( + str_format_internal::FormatPack( + str_format_internal::UntypedFormatSpecImpl::Extract(format), args), + buf); + EXPECT_EQ(actual, buf); + } + // The internal version works with a preparsed format. + ParsedFormat<'d'> pc("A format %d"); + int i = 345; + FormatArg arg(i); + std::string out; + EXPECT_TRUE(str_format_internal::FormatUntyped( + &out, str_format_internal::UntypedFormatSpecImpl(&pc), {&arg, 1})); + EXPECT_EQ("A format 345", out); +} + +TEST_F(FormatEntryPointTest, StringFormat) { + EXPECT_EQ("123", StrFormat("%d", 123)); + constexpr absl::string_view view("=%d=", 4); + EXPECT_EQ("=123=", StrFormat(view, 123)); +} + +TEST_F(FormatEntryPointTest, AppendFormat) { + std::string s; + std::string& r = StrAppendFormat(&s, "%d", 123); + EXPECT_EQ(&s, &r); // should be same object + EXPECT_EQ("123", r); +} + +TEST_F(FormatEntryPointTest, AppendFormatFail) { + std::string s = "orig"; + + UntypedFormatSpec format(" more %d"); + FormatArgImpl arg("not an int"); + + EXPECT_EQ("orig", + str_format_internal::AppendPack( + &s, str_format_internal::UntypedFormatSpecImpl::Extract(format), + {&arg, 1})); +} + + +TEST_F(FormatEntryPointTest, ManyArgs) { + EXPECT_EQ("24", StrFormat("%24$d", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, + 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)); + EXPECT_EQ("60", StrFormat("%60$d", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, + 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, + 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, + 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, + 53, 54, 55, 56, 57, 58, 59, 60)); +} + +TEST_F(FormatEntryPointTest, Preparsed) { + ParsedFormat<'d'> pc("%d"); + EXPECT_EQ("123", StrFormat(pc, 123)); + // rvalue ok? + EXPECT_EQ("123", StrFormat(ParsedFormat<'d'>("%d"), 123)); + constexpr absl::string_view view("=%d=", 4); + EXPECT_EQ("=123=", StrFormat(ParsedFormat<'d'>(view), 123)); +} + +TEST_F(FormatEntryPointTest, FormatCountCapture) { + int n = 0; + EXPECT_EQ("", StrFormat("%n", FormatCountCapture(&n))); + EXPECT_EQ(0, n); + EXPECT_EQ("123", StrFormat("%d%n", 123, FormatCountCapture(&n))); + EXPECT_EQ(3, n); +} + +TEST_F(FormatEntryPointTest, FormatCountCaptureWrongType) { + // Should reject int*. + int n = 0; + UntypedFormatSpec format("%d%n"); + int i = 123, *ip = &n; + FormatArgImpl args[2] = {FormatArgImpl(i), FormatArgImpl(ip)}; + + EXPECT_EQ("", str_format_internal::FormatPack( + str_format_internal::UntypedFormatSpecImpl::Extract(format), + absl::MakeSpan(args))); +} + +TEST_F(FormatEntryPointTest, FormatCountCaptureMultiple) { + int n1 = 0; + int n2 = 0; + EXPECT_EQ(" 1 2", + StrFormat("%5d%n%10d%n", 1, FormatCountCapture(&n1), 2, + FormatCountCapture(&n2))); + EXPECT_EQ(5, n1); + EXPECT_EQ(15, n2); +} + +TEST_F(FormatEntryPointTest, FormatCountCaptureExample) { + int n; + std::string s; + StrAppendFormat(&s, "%s: %n%s\n", "(1,1)", FormatCountCapture(&n), "(1,2)"); + StrAppendFormat(&s, "%*s%s\n", n, "", "(2,2)"); + EXPECT_EQ(7, n); + EXPECT_EQ( + "(1,1): (1,2)\n" + " (2,2)\n", + s); +} + +TEST_F(FormatEntryPointTest, Stream) { + const std::string formats[] = { + "", + "a", + "%80d", + "%d %u %c %s %f %g", +#if !defined(_MSC_VER) && !defined(__ANDROID__) && !defined(__native_client__) + // MSVC, NaCL and Android don't support positional syntax. + "complicated multipart %% %1$d format %1$080d", +#endif // _MSC_VER + }; + std::string buf(4096, '\0'); + for (const auto& fmt : formats) { + const auto parsed = + ParsedFormat<'d', 'u', 'c', 's', 'f', 'g'>::NewAllowIgnored(fmt); + std::ostringstream oss; + oss << StreamFormat(*parsed, 123, 3, 49, "multistreaming!!!", 1.01, 1.01); + int fmt_result = snprintf(&*buf.begin(), buf.size(), fmt.c_str(), // + 123, 3, 49, "multistreaming!!!", 1.01, 1.01); + ASSERT_TRUE(oss) << fmt; + ASSERT_TRUE(fmt_result >= 0 && static_cast<size_t>(fmt_result) < buf.size()) + << fmt_result; + EXPECT_EQ(buf.c_str(), oss.str()); + } +} + +TEST_F(FormatEntryPointTest, StreamOk) { + std::ostringstream oss; + oss << StreamFormat("hello %d", 123); + EXPECT_EQ("hello 123", oss.str()); + EXPECT_TRUE(oss.good()); +} + +TEST_F(FormatEntryPointTest, StreamFail) { + std::ostringstream oss; + UntypedFormatSpec format("hello %d"); + FormatArgImpl arg("non-numeric"); + oss << str_format_internal::Streamable( + str_format_internal::UntypedFormatSpecImpl::Extract(format), {&arg, 1}); + EXPECT_EQ("hello ", oss.str()); // partial write + EXPECT_TRUE(oss.fail()); +} + +std::string WithSnprintf(const char* fmt, ...) { + std::string buf; + buf.resize(128); + va_list va; + va_start(va, fmt); + int r = vsnprintf(&*buf.begin(), buf.size(), fmt, va); + va_end(va); + EXPECT_GE(r, 0); + EXPECT_LT(r, buf.size()); + buf.resize(r); + return buf; +} + +TEST_F(FormatEntryPointTest, FloatPrecisionArg) { + // Test that positional parameters for width and precision + // are indexed to precede the value. + // Also sanity check the same formats against snprintf. + EXPECT_EQ("0.1", StrFormat("%.1f", 0.1)); + EXPECT_EQ("0.1", WithSnprintf("%.1f", 0.1)); + EXPECT_EQ(" 0.1", StrFormat("%*.1f", 5, 0.1)); + EXPECT_EQ(" 0.1", WithSnprintf("%*.1f", 5, 0.1)); + EXPECT_EQ("0.1", StrFormat("%.*f", 1, 0.1)); + EXPECT_EQ("0.1", WithSnprintf("%.*f", 1, 0.1)); + EXPECT_EQ(" 0.1", StrFormat("%*.*f", 5, 1, 0.1)); + EXPECT_EQ(" 0.1", WithSnprintf("%*.*f", 5, 1, 0.1)); +} +namespace streamed_test { +struct X {}; +std::ostream& operator<<(std::ostream& os, const X&) { + return os << "X"; +} +} // streamed_test + +TEST_F(FormatEntryPointTest, FormatStreamed) { + EXPECT_EQ("123", StrFormat("%s", FormatStreamed(123))); + EXPECT_EQ(" 123", StrFormat("%5s", FormatStreamed(123))); + EXPECT_EQ("123 ", StrFormat("%-5s", FormatStreamed(123))); + EXPECT_EQ("X", StrFormat("%s", FormatStreamed(streamed_test::X()))); + EXPECT_EQ("123", StrFormat("%s", FormatStreamed(StreamFormat("%d", 123)))); +} + +// Helper class that creates a temporary file and exposes a FILE* to it. +// It will close the file on destruction. +class TempFile { + public: + TempFile() : file_(std::tmpfile()) {} + ~TempFile() { std::fclose(file_); } + + std::FILE* file() const { return file_; } + + // Read the file into a string. + std::string ReadFile() { + std::fseek(file_, 0, SEEK_END); + int size = std::ftell(file_); + EXPECT_GT(size, 0); + std::rewind(file_); + std::string str(2 * size, ' '); + int read_bytes = std::fread(&str[0], 1, str.size(), file_); + EXPECT_EQ(read_bytes, size); + str.resize(read_bytes); + EXPECT_TRUE(std::feof(file_)); + return str; + } + + private: + std::FILE* file_; +}; + +TEST_F(FormatEntryPointTest, FPrintF) { + TempFile tmp; + int result = + FPrintF(tmp.file(), "STRING: %s NUMBER: %010d", std::string("ABC"), -19); + EXPECT_EQ(result, 30); + EXPECT_EQ(tmp.ReadFile(), "STRING: ABC NUMBER: -000000019"); +} + +TEST_F(FormatEntryPointTest, FPrintFError) { + errno = 0; + int result = FPrintF(stdin, "ABC"); + EXPECT_LT(result, 0); + EXPECT_EQ(errno, EBADF); +} + +#ifdef __GLIBC__ +TEST_F(FormatEntryPointTest, FprintfTooLarge) { + std::FILE* f = std::fopen("/dev/null", "w"); + int width = 2000000000; + errno = 0; + int result = FPrintF(f, "%*d %*d", width, 0, width, 0); + EXPECT_LT(result, 0); + EXPECT_EQ(errno, EFBIG); + std::fclose(f); +} + +TEST_F(FormatEntryPointTest, PrintF) { + int stdout_tmp = dup(STDOUT_FILENO); + + TempFile tmp; + std::fflush(stdout); + dup2(fileno(tmp.file()), STDOUT_FILENO); + + int result = PrintF("STRING: %s NUMBER: %010d", std::string("ABC"), -19); + + std::fflush(stdout); + dup2(stdout_tmp, STDOUT_FILENO); + close(stdout_tmp); + + EXPECT_EQ(result, 30); + EXPECT_EQ(tmp.ReadFile(), "STRING: ABC NUMBER: -000000019"); +} +#endif // __GLIBC__ + +TEST_F(FormatEntryPointTest, SNPrintF) { + char buffer[16]; + int result = + SNPrintF(buffer, sizeof(buffer), "STRING: %s", std::string("ABC")); + EXPECT_EQ(result, 11); + EXPECT_EQ(std::string(buffer), "STRING: ABC"); + + result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 123456); + EXPECT_EQ(result, 14); + EXPECT_EQ(std::string(buffer), "NUMBER: 123456"); + + result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 1234567); + EXPECT_EQ(result, 15); + EXPECT_EQ(std::string(buffer), "NUMBER: 1234567"); + + result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 12345678); + EXPECT_EQ(result, 16); + EXPECT_EQ(std::string(buffer), "NUMBER: 1234567"); + + result = SNPrintF(buffer, sizeof(buffer), "NUMBER: %d", 123456789); + EXPECT_EQ(result, 17); + EXPECT_EQ(std::string(buffer), "NUMBER: 1234567"); + + result = SNPrintF(nullptr, 0, "Just checking the %s of the output.", "size"); + EXPECT_EQ(result, 37); +} + +TEST(StrFormat, BehavesAsDocumented) { + std::string s = absl::StrFormat("%s, %d!", "Hello", 123); + EXPECT_EQ("Hello, 123!", s); + // The format of a replacement is + // '%'[position][flags][width['.'precision]][length_modifier][format] + EXPECT_EQ(absl::StrFormat("%1$+3.2Lf", 1.1), "+1.10"); + // Text conversion: + // "c" - Character. Eg: 'a' -> "A", 20 -> " " + EXPECT_EQ(StrFormat("%c", 'a'), "a"); + EXPECT_EQ(StrFormat("%c", 0x20), " "); + // Formats char and integral types: int, long, uint64_t, etc. + EXPECT_EQ(StrFormat("%c", int{'a'}), "a"); + EXPECT_EQ(StrFormat("%c", long{'a'}), "a"); // NOLINT + EXPECT_EQ(StrFormat("%c", uint64_t{'a'}), "a"); + // "s" - string Eg: "C" -> "C", std::string("C++") -> "C++" + // Formats std::string, char*, string_view, and Cord. + EXPECT_EQ(StrFormat("%s", "C"), "C"); + EXPECT_EQ(StrFormat("%s", std::string("C++")), "C++"); + EXPECT_EQ(StrFormat("%s", string_view("view")), "view"); + // Integral Conversion + // These format integral types: char, int, long, uint64_t, etc. + EXPECT_EQ(StrFormat("%d", char{10}), "10"); + EXPECT_EQ(StrFormat("%d", int{10}), "10"); + EXPECT_EQ(StrFormat("%d", long{10}), "10"); // NOLINT + EXPECT_EQ(StrFormat("%d", uint64_t{10}), "10"); + // d,i - signed decimal Eg: -10 -> "-10" + EXPECT_EQ(StrFormat("%d", -10), "-10"); + EXPECT_EQ(StrFormat("%i", -10), "-10"); + // o - octal Eg: 10 -> "12" + EXPECT_EQ(StrFormat("%o", 10), "12"); + // u - unsigned decimal Eg: 10 -> "10" + EXPECT_EQ(StrFormat("%u", 10), "10"); + // x/X - lower,upper case hex Eg: 10 -> "a"/"A" + EXPECT_EQ(StrFormat("%x", 10), "a"); + EXPECT_EQ(StrFormat("%X", 10), "A"); + // Floating-point, with upper/lower-case output. + // These format floating points types: float, double, long double, etc. + EXPECT_EQ(StrFormat("%.1f", float{1}), "1.0"); + EXPECT_EQ(StrFormat("%.1f", double{1}), "1.0"); + const long double long_double = 1.0; + EXPECT_EQ(StrFormat("%.1f", long_double), "1.0"); + // These also format integral types: char, int, long, uint64_t, etc.: + EXPECT_EQ(StrFormat("%.1f", char{1}), "1.0"); + EXPECT_EQ(StrFormat("%.1f", int{1}), "1.0"); + EXPECT_EQ(StrFormat("%.1f", long{1}), "1.0"); // NOLINT + EXPECT_EQ(StrFormat("%.1f", uint64_t{1}), "1.0"); + // f/F - decimal. Eg: 123456789 -> "123456789.000000" + EXPECT_EQ(StrFormat("%f", 123456789), "123456789.000000"); + EXPECT_EQ(StrFormat("%F", 123456789), "123456789.000000"); + // e/E - exponentiated Eg: .01 -> "1.00000e-2"/"1.00000E-2" + EXPECT_EQ(StrFormat("%e", .01), "1.000000e-02"); + EXPECT_EQ(StrFormat("%E", .01), "1.000000E-02"); + // g/G - exponentiate to fit Eg: .01 -> "0.01", 1e10 ->"1e+10"/"1E+10" + EXPECT_EQ(StrFormat("%g", .01), "0.01"); + EXPECT_EQ(StrFormat("%g", 1e10), "1e+10"); + EXPECT_EQ(StrFormat("%G", 1e10), "1E+10"); + // a/A - lower,upper case hex Eg: -3.0 -> "-0x1.8p+1"/"-0X1.8P+1" + +// On Android platform <=21, there is a regression in hexfloat formatting. +#if !defined(__ANDROID_API__) || __ANDROID_API__ > 21 + EXPECT_EQ(StrFormat("%.1a", -3.0), "-0x1.8p+1"); // .1 to fix MSVC output + EXPECT_EQ(StrFormat("%.1A", -3.0), "-0X1.8P+1"); // .1 to fix MSVC output +#endif + + // Other conversion + int64_t value = 0x7ffdeb4; + auto ptr_value = static_cast<uintptr_t>(value); + const int& something = *reinterpret_cast<const int*>(ptr_value); + EXPECT_EQ(StrFormat("%p", &something), StrFormat("0x%x", ptr_value)); + + // Output widths are supported, with optional flags. + EXPECT_EQ(StrFormat("%3d", 1), " 1"); + EXPECT_EQ(StrFormat("%3d", 123456), "123456"); + EXPECT_EQ(StrFormat("%06.2f", 1.234), "001.23"); + EXPECT_EQ(StrFormat("%+d", 1), "+1"); + EXPECT_EQ(StrFormat("% d", 1), " 1"); + EXPECT_EQ(StrFormat("%-4d", -1), "-1 "); + EXPECT_EQ(StrFormat("%#o", 10), "012"); + EXPECT_EQ(StrFormat("%#x", 15), "0xf"); + EXPECT_EQ(StrFormat("%04d", 8), "0008"); + // Posix positional substitution. + EXPECT_EQ(absl::StrFormat("%2$s, %3$s, %1$s!", "vici", "veni", "vidi"), + "veni, vidi, vici!"); + // Length modifiers are ignored. + EXPECT_EQ(StrFormat("%hhd", int{1}), "1"); + EXPECT_EQ(StrFormat("%hd", int{1}), "1"); + EXPECT_EQ(StrFormat("%ld", int{1}), "1"); + EXPECT_EQ(StrFormat("%lld", int{1}), "1"); + EXPECT_EQ(StrFormat("%Ld", int{1}), "1"); + EXPECT_EQ(StrFormat("%jd", int{1}), "1"); + EXPECT_EQ(StrFormat("%zd", int{1}), "1"); + EXPECT_EQ(StrFormat("%td", int{1}), "1"); + EXPECT_EQ(StrFormat("%qd", int{1}), "1"); +} + +using str_format_internal::ExtendedParsedFormat; +using str_format_internal::ParsedFormatBase; + +struct SummarizeConsumer { + std::string* out; + explicit SummarizeConsumer(std::string* out) : out(out) {} + + bool Append(string_view s) { + *out += "[" + std::string(s) + "]"; + return true; + } + + bool ConvertOne(const str_format_internal::UnboundConversion& conv, + string_view s) { + *out += "{"; + *out += std::string(s); + *out += ":"; + *out += std::to_string(conv.arg_position) + "$"; + if (conv.width.is_from_arg()) { + *out += std::to_string(conv.width.get_from_arg()) + "$*"; + } + if (conv.precision.is_from_arg()) { + *out += "." + std::to_string(conv.precision.get_from_arg()) + "$*"; + } + *out += str_format_internal::FormatConversionCharToChar(conv.conv); + *out += "}"; + return true; + } +}; + +std::string SummarizeParsedFormat(const ParsedFormatBase& pc) { + std::string out; + if (!pc.ProcessFormat(SummarizeConsumer(&out))) out += "!"; + return out; +} + +using ParsedFormatTest = ::testing::Test; + +TEST_F(ParsedFormatTest, SimpleChecked) { + EXPECT_EQ("[ABC]{d:1$d}[DEF]", + SummarizeParsedFormat(ParsedFormat<'d'>("ABC%dDEF"))); + EXPECT_EQ("{s:1$s}[FFF]{d:2$d}[ZZZ]{f:3$f}", + SummarizeParsedFormat(ParsedFormat<'s', 'd', 'f'>("%sFFF%dZZZ%f"))); + EXPECT_EQ("{s:1$s}[ ]{.*d:3$.2$*d}", + SummarizeParsedFormat(ParsedFormat<'s', '*', 'd'>("%s %.*d"))); +} + +TEST_F(ParsedFormatTest, SimpleUncheckedCorrect) { + auto f = ParsedFormat<'d'>::New("ABC%dDEF"); + ASSERT_TRUE(f); + EXPECT_EQ("[ABC]{d:1$d}[DEF]", SummarizeParsedFormat(*f)); + + std::string format = "%sFFF%dZZZ%f"; + auto f2 = ParsedFormat<'s', 'd', 'f'>::New(format); + + ASSERT_TRUE(f2); + EXPECT_EQ("{s:1$s}[FFF]{d:2$d}[ZZZ]{f:3$f}", SummarizeParsedFormat(*f2)); + + f2 = ParsedFormat<'s', 'd', 'f'>::New("%s %d %f"); + + ASSERT_TRUE(f2); + EXPECT_EQ("{s:1$s}[ ]{d:2$d}[ ]{f:3$f}", SummarizeParsedFormat(*f2)); + + auto star = ParsedFormat<'*', 'd'>::New("%*d"); + ASSERT_TRUE(star); + EXPECT_EQ("{*d:2$1$*d}", SummarizeParsedFormat(*star)); + + auto dollar = ParsedFormat<'d', 's'>::New("%2$s %1$d"); + ASSERT_TRUE(dollar); + EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}", SummarizeParsedFormat(*dollar)); + // with reuse + dollar = ParsedFormat<'d', 's'>::New("%2$s %1$d %1$d"); + ASSERT_TRUE(dollar); + EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}[ ]{1$d:1$d}", + SummarizeParsedFormat(*dollar)); +} + +TEST_F(ParsedFormatTest, SimpleUncheckedIgnoredArgs) { + EXPECT_FALSE((ParsedFormat<'d', 's'>::New("ABC"))); + EXPECT_FALSE((ParsedFormat<'d', 's'>::New("%dABC"))); + EXPECT_FALSE((ParsedFormat<'d', 's'>::New("ABC%2$s"))); + auto f = ParsedFormat<'d', 's'>::NewAllowIgnored("ABC"); + ASSERT_TRUE(f); + EXPECT_EQ("[ABC]", SummarizeParsedFormat(*f)); + f = ParsedFormat<'d', 's'>::NewAllowIgnored("%dABC"); + ASSERT_TRUE(f); + EXPECT_EQ("{d:1$d}[ABC]", SummarizeParsedFormat(*f)); + f = ParsedFormat<'d', 's'>::NewAllowIgnored("ABC%2$s"); + ASSERT_TRUE(f); + EXPECT_EQ("[ABC]{2$s:2$s}", SummarizeParsedFormat(*f)); +} + +TEST_F(ParsedFormatTest, SimpleUncheckedUnsupported) { + EXPECT_FALSE(ParsedFormat<'d'>::New("%1$d %1$x")); + EXPECT_FALSE(ParsedFormat<'x'>::New("%1$d %1$x")); +} + +TEST_F(ParsedFormatTest, SimpleUncheckedIncorrect) { + EXPECT_FALSE(ParsedFormat<'d'>::New("")); + + EXPECT_FALSE(ParsedFormat<'d'>::New("ABC%dDEF%d")); + + std::string format = "%sFFF%dZZZ%f"; + EXPECT_FALSE((ParsedFormat<'s', 'd', 'g'>::New(format))); +} + +using absl::str_format_internal::FormatConversionCharSet; + +TEST_F(ParsedFormatTest, UncheckedCorrect) { + auto f = + ExtendedParsedFormat<FormatConversionCharSetInternal::d>::New("ABC%dDEF"); + ASSERT_TRUE(f); + EXPECT_EQ("[ABC]{d:1$d}[DEF]", SummarizeParsedFormat(*f)); + + std::string format = "%sFFF%dZZZ%f"; + auto f2 = ExtendedParsedFormat< + FormatConversionCharSetInternal::kString, + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::kFloating>::New(format); + + ASSERT_TRUE(f2); + EXPECT_EQ("{s:1$s}[FFF]{d:2$d}[ZZZ]{f:3$f}", SummarizeParsedFormat(*f2)); + + f2 = ExtendedParsedFormat< + FormatConversionCharSetInternal::kString, + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::kFloating>::New("%s %d %f"); + + ASSERT_TRUE(f2); + EXPECT_EQ("{s:1$s}[ ]{d:2$d}[ ]{f:3$f}", SummarizeParsedFormat(*f2)); + + auto star = + ExtendedParsedFormat<FormatConversionCharSetInternal::kStar, + FormatConversionCharSetInternal::d>::New("%*d"); + ASSERT_TRUE(star); + EXPECT_EQ("{*d:2$1$*d}", SummarizeParsedFormat(*star)); + + auto dollar = ExtendedParsedFormat< + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::s>::New("%2$s %1$d"); + ASSERT_TRUE(dollar); + EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}", SummarizeParsedFormat(*dollar)); + // with reuse + dollar = ExtendedParsedFormat< + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::s>::New("%2$s %1$d %1$d"); + ASSERT_TRUE(dollar); + EXPECT_EQ("{2$s:2$s}[ ]{1$d:1$d}[ ]{1$d:1$d}", + SummarizeParsedFormat(*dollar)); +} + +TEST_F(ParsedFormatTest, UncheckedIgnoredArgs) { + EXPECT_FALSE( + (ExtendedParsedFormat<FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::s>::New("ABC"))); + EXPECT_FALSE( + (ExtendedParsedFormat<FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::s>::New("%dABC"))); + EXPECT_FALSE((ExtendedParsedFormat< + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::s>::New("ABC%2$s"))); + auto f = ExtendedParsedFormat< + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::s>::NewAllowIgnored("ABC"); + ASSERT_TRUE(f); + EXPECT_EQ("[ABC]", SummarizeParsedFormat(*f)); + f = ExtendedParsedFormat< + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::s>::NewAllowIgnored("%dABC"); + ASSERT_TRUE(f); + EXPECT_EQ("{d:1$d}[ABC]", SummarizeParsedFormat(*f)); + f = ExtendedParsedFormat< + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::s>::NewAllowIgnored("ABC%2$s"); + ASSERT_TRUE(f); + EXPECT_EQ("[ABC]{2$s:2$s}", SummarizeParsedFormat(*f)); +} + +TEST_F(ParsedFormatTest, UncheckedMultipleTypes) { + auto dx = ExtendedParsedFormat< + FormatConversionCharSetInternal::d | + FormatConversionCharSetInternal::x>::New("%1$d %1$x"); + EXPECT_TRUE(dx); + EXPECT_EQ("{1$d:1$d}[ ]{1$x:1$x}", SummarizeParsedFormat(*dx)); + + dx = ExtendedParsedFormat<FormatConversionCharSetInternal::d | + FormatConversionCharSetInternal::x>::New("%1$d"); + EXPECT_TRUE(dx); + EXPECT_EQ("{1$d:1$d}", SummarizeParsedFormat(*dx)); +} + +TEST_F(ParsedFormatTest, UncheckedIncorrect) { + EXPECT_FALSE( + ExtendedParsedFormat<FormatConversionCharSetInternal::d>::New("")); + + EXPECT_FALSE(ExtendedParsedFormat<FormatConversionCharSetInternal::d>::New( + "ABC%dDEF%d")); + + std::string format = "%sFFF%dZZZ%f"; + EXPECT_FALSE( + (ExtendedParsedFormat<FormatConversionCharSetInternal::s, + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::g>::New(format))); +} + +TEST_F(ParsedFormatTest, RegressionMixPositional) { + EXPECT_FALSE((ExtendedParsedFormat< + FormatConversionCharSetInternal::d, + FormatConversionCharSetInternal::o>::New("%1$d %o"))); +} + +using FormatWrapperTest = ::testing::Test; + +// Plain wrapper for StrFormat. +template <typename... Args> +std::string WrappedFormat(const absl::FormatSpec<Args...>& format, + const Args&... args) { + return StrFormat(format, args...); +} + +TEST_F(FormatWrapperTest, ConstexprStringFormat) { + EXPECT_EQ(WrappedFormat("%s there", "hello"), "hello there"); +} + +TEST_F(FormatWrapperTest, ParsedFormat) { + ParsedFormat<'s'> format("%s there"); + EXPECT_EQ(WrappedFormat(format, "hello"), "hello there"); +} + +} // namespace +ABSL_NAMESPACE_END +} // namespace absl + +// Some codegen thunks that we can use to easily dump the generated assembly for +// different StrFormat calls. + +std::string CodegenAbslStrFormatInt(int i) { // NOLINT + return absl::StrFormat("%d", i); +} + +std::string CodegenAbslStrFormatIntStringInt64(int i, const std::string& s, + int64_t i64) { // NOLINT + return absl::StrFormat("%d %s %d", i, s, i64); +} + +void CodegenAbslStrAppendFormatInt(std::string* out, int i) { // NOLINT + absl::StrAppendFormat(out, "%d", i); +} + +void CodegenAbslStrAppendFormatIntStringInt64(std::string* out, int i, + const std::string& s, + int64_t i64) { // NOLINT + absl::StrAppendFormat(out, "%d %s %d", i, s, i64); +} |