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author | Abseil Team <absl-team@google.com> | 2020-02-25 22:27:31 +0100 |
---|---|---|
committer | CJ Johnson <johnsoncj@google.com> | 2020-02-25 17:56:58 -0500 |
commit | b832dce8489ef7b6231384909fd9b68d5a5ff2b7 (patch) | |
tree | 3ad4be9a9a4105366be714da9458e076a77be18f /absl/strings/internal/str_format/convert_test.cc | |
parent | aa844899c937bde5d2b24f276b59997e5b668bde (diff) |
Creation of LTS branch "lts_2020_02_25"20200225
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GitOrigin-RevId: 0033c9ea91a52ade7c6b725aa2ef3cbe15463421
Change-Id: I8a2b70063cb3ab40c6943a6db0fe40cae71ed8d7
Diffstat (limited to 'absl/strings/internal/str_format/convert_test.cc')
-rw-r--r-- | absl/strings/internal/str_format/convert_test.cc | 153 |
1 files changed, 106 insertions, 47 deletions
diff --git a/absl/strings/internal/str_format/convert_test.cc b/absl/strings/internal/str_format/convert_test.cc index 751bfc34..cbcd7caf 100644 --- a/absl/strings/internal/str_format/convert_test.cc +++ b/absl/strings/internal/str_format/convert_test.cc @@ -5,11 +5,13 @@ #include <cmath> #include <string> +#include "gmock/gmock.h" #include "gtest/gtest.h" +#include "absl/base/internal/raw_logging.h" #include "absl/strings/internal/str_format/bind.h" namespace absl { -inline namespace lts_2019_08_08 { +ABSL_NAMESPACE_BEGIN namespace str_format_internal { namespace { @@ -152,18 +154,26 @@ TEST_F(FormatConvertTest, StringPrecision) { UntypedFormatSpecImpl format("%.1s"); EXPECT_EQ("a", FormatPack(format, {FormatArgImpl(p)})); - // We cap at the nul terminator. + // We cap at the NUL-terminator. p = "ABC"; UntypedFormatSpecImpl format2("%.10s"); EXPECT_EQ("ABC", FormatPack(format2, {FormatArgImpl(p)})); } +// Pointer formatting is implementation defined. This checks that the argument +// can be matched to `ptr`. +MATCHER_P(MatchesPointerString, ptr, "") { + if (ptr == nullptr && arg == "(nil)") { + return true; + } + void* parsed = nullptr; + if (sscanf(arg.c_str(), "%p", &parsed) != 1) { + ABSL_RAW_LOG(FATAL, "Could not parse %s", arg.c_str()); + } + return ptr == parsed; +} + TEST_F(FormatConvertTest, Pointer) { -#ifdef _MSC_VER - // MSVC's printf implementation prints pointers differently. We can't easily - // compare our implementation to theirs. - return; -#endif static int x = 0; const int *xp = &x; char c = 'h'; @@ -174,48 +184,62 @@ TEST_F(FormatConvertTest, Pointer) { using VoidF = void (*)(); VoidF fp = [] {}, fnil = nullptr; volatile char vc; - volatile char* vcp = &vc; - volatile char* vcnil = nullptr; - const FormatArgImpl args[] = { + volatile char *vcp = &vc; + volatile char *vcnil = nullptr; + const FormatArgImpl args_array[] = { FormatArgImpl(xp), FormatArgImpl(cp), FormatArgImpl(inil), FormatArgImpl(cnil), FormatArgImpl(mcp), FormatArgImpl(fp), FormatArgImpl(fnil), FormatArgImpl(vcp), FormatArgImpl(vcnil), }; - struct Expectation { - std::string out; - const char *fmt; - }; - const Expectation kExpect[] = { - {StrPrint("%p", &x), "%p"}, - {StrPrint("%20p", &x), "%20p"}, - {StrPrint("%.1p", &x), "%.1p"}, - {StrPrint("%.20p", &x), "%.20p"}, - {StrPrint("%30.20p", &x), "%30.20p"}, - - {StrPrint("%-p", &x), "%-p"}, - {StrPrint("%-20p", &x), "%-20p"}, - {StrPrint("%-.1p", &x), "%-.1p"}, - {StrPrint("%.20p", &x), "%.20p"}, - {StrPrint("%-30.20p", &x), "%-30.20p"}, - - {StrPrint("%p", cp), "%2$p"}, // const char* - {"(nil)", "%3$p"}, // null const char * - {"(nil)", "%4$p"}, // null const int * - {StrPrint("%p", mcp), "%5$p"}, // nonconst char* - - {StrPrint("%p", fp), "%6$p"}, // function pointer - {StrPrint("%p", vcp), "%8$p"}, // function pointer - -#ifndef __APPLE__ - // Apple's printf differs here (0x0 vs. nil) - {StrPrint("%p", fnil), "%7$p"}, // null function pointer - {StrPrint("%p", vcnil), "%9$p"}, // null function pointer -#endif - }; - for (const Expectation &e : kExpect) { - UntypedFormatSpecImpl format(e.fmt); - EXPECT_EQ(e.out, FormatPack(format, absl::MakeSpan(args))) << e.fmt; - } + auto args = absl::MakeConstSpan(args_array); + + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%p"), args), + MatchesPointerString(&x)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%20p"), args), + MatchesPointerString(&x)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%.1p"), args), + MatchesPointerString(&x)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%.20p"), args), + MatchesPointerString(&x)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%30.20p"), args), + MatchesPointerString(&x)); + + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%-p"), args), + MatchesPointerString(&x)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%-20p"), args), + MatchesPointerString(&x)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%-.1p"), args), + MatchesPointerString(&x)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%.20p"), args), + MatchesPointerString(&x)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%-30.20p"), args), + MatchesPointerString(&x)); + + // const char* + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%2$p"), args), + MatchesPointerString(cp)); + // null const int* + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%3$p"), args), + MatchesPointerString(nullptr)); + // null const char* + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%4$p"), args), + MatchesPointerString(nullptr)); + // nonconst char* + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%5$p"), args), + MatchesPointerString(mcp)); + + // function pointers + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%6$p"), args), + MatchesPointerString(reinterpret_cast<const void*>(fp))); + EXPECT_THAT( + FormatPack(UntypedFormatSpecImpl("%8$p"), args), + MatchesPointerString(reinterpret_cast<volatile const void *>(vcp))); + + // null function pointers + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%7$p"), args), + MatchesPointerString(nullptr)); + EXPECT_THAT(FormatPack(UntypedFormatSpecImpl("%9$p"), args), + MatchesPointerString(nullptr)); } struct Cardinal { @@ -367,7 +391,6 @@ typedef ::testing::Types< AllIntTypes; INSTANTIATE_TYPED_TEST_CASE_P(TypedFormatConvertTestWithAllIntTypes, TypedFormatConvertTest, AllIntTypes); - TEST_F(FormatConvertTest, VectorBool) { // Make sure vector<bool>'s values behave as bools. std::vector<bool> v = {true, false}; @@ -379,6 +402,42 @@ TEST_F(FormatConvertTest, VectorBool) { FormatArgImpl(cv[0]), FormatArgImpl(cv[1])}))); } + +TEST_F(FormatConvertTest, Int128) { + absl::int128 positive = static_cast<absl::int128>(0x1234567890abcdef) * 1979; + absl::int128 negative = -positive; + absl::int128 max = absl::Int128Max(), min = absl::Int128Min(); + const FormatArgImpl args[] = {FormatArgImpl(positive), + FormatArgImpl(negative), FormatArgImpl(max), + FormatArgImpl(min)}; + + struct Case { + const char* format; + const char* expected; + } cases[] = { + {"%1$d", "2595989796776606496405"}, + {"%1$30d", " 2595989796776606496405"}, + {"%1$-30d", "2595989796776606496405 "}, + {"%1$u", "2595989796776606496405"}, + {"%1$x", "8cba9876066020f695"}, + {"%2$d", "-2595989796776606496405"}, + {"%2$30d", " -2595989796776606496405"}, + {"%2$-30d", "-2595989796776606496405 "}, + {"%2$u", "340282366920938460867384810655161715051"}, + {"%2$x", "ffffffffffffff73456789f99fdf096b"}, + {"%3$d", "170141183460469231731687303715884105727"}, + {"%3$u", "170141183460469231731687303715884105727"}, + {"%3$x", "7fffffffffffffffffffffffffffffff"}, + {"%4$d", "-170141183460469231731687303715884105728"}, + {"%4$x", "80000000000000000000000000000000"}, + }; + + for (auto c : cases) { + UntypedFormatSpecImpl format(c.format); + EXPECT_EQ(c.expected, FormatPack(format, absl::MakeSpan(args))); + } +} + TEST_F(FormatConvertTest, Uint128) { absl::uint128 v = static_cast<absl::uint128>(0x1234567890abcdef) * 1979; absl::uint128 max = absl::Uint128Max(); @@ -588,5 +647,5 @@ TEST_F(FormatConvertTest, ExpectedFailures) { } // namespace } // namespace str_format_internal -} // inline namespace lts_2019_08_08 +ABSL_NAMESPACE_END } // namespace absl |