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