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Diffstat (limited to 'third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc')
-rw-r--r-- | third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc b/third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc new file mode 100644 index 000000000000..1261937c3097 --- /dev/null +++ b/third_party/abseil_cpp/absl/strings/internal/str_format/arg_test.cc @@ -0,0 +1,130 @@ +// Copyright 2017 The Abseil Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "absl/strings/internal/str_format/arg.h" + +#include <ostream> +#include <string> +#include "gtest/gtest.h" +#include "absl/strings/str_format.h" + +namespace absl { +ABSL_NAMESPACE_BEGIN +namespace str_format_internal { +namespace { + +class FormatArgImplTest : public ::testing::Test { + public: + enum Color { kRed, kGreen, kBlue }; + + static const char *hi() { return "hi"; } + + struct X {}; + + X x_; +}; + +inline FormatConvertResult<FormatConversionCharSet{}> AbslFormatConvert( + const FormatArgImplTest::X &, const FormatConversionSpec &, FormatSink *) { + return {false}; +} + +TEST_F(FormatArgImplTest, ToInt) { + int out = 0; + EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(1), &out)); + EXPECT_EQ(1, out); + EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(-1), &out)); + EXPECT_EQ(-1, out); + EXPECT_TRUE( + FormatArgImplFriend::ToInt(FormatArgImpl(static_cast<char>(64)), &out)); + EXPECT_EQ(64, out); + EXPECT_TRUE(FormatArgImplFriend::ToInt( + FormatArgImpl(static_cast<unsigned long long>(123456)), &out)); // NOLINT + EXPECT_EQ(123456, out); + EXPECT_TRUE(FormatArgImplFriend::ToInt( + FormatArgImpl(static_cast<unsigned long long>( // NOLINT + std::numeric_limits<int>::max()) + + 1), + &out)); + EXPECT_EQ(std::numeric_limits<int>::max(), out); + EXPECT_TRUE(FormatArgImplFriend::ToInt( + FormatArgImpl(static_cast<long long>( // NOLINT + std::numeric_limits<int>::min()) - + 10), + &out)); + EXPECT_EQ(std::numeric_limits<int>::min(), out); + EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(false), &out)); + EXPECT_EQ(0, out); + EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(true), &out)); + EXPECT_EQ(1, out); + EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(2.2), &out)); + EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(3.2f), &out)); + EXPECT_FALSE(FormatArgImplFriend::ToInt( + FormatArgImpl(static_cast<int *>(nullptr)), &out)); + EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(hi()), &out)); + EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl("hi"), &out)); + EXPECT_FALSE(FormatArgImplFriend::ToInt(FormatArgImpl(x_), &out)); + EXPECT_TRUE(FormatArgImplFriend::ToInt(FormatArgImpl(kBlue), &out)); + EXPECT_EQ(2, out); +} + +extern const char kMyArray[]; + +TEST_F(FormatArgImplTest, CharArraysDecayToCharPtr) { + const char* a = ""; + EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(a)), + FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(""))); + EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(a)), + FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl("A"))); + EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(a)), + FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl("ABC"))); + EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(a)), + FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(kMyArray))); +} + +TEST_F(FormatArgImplTest, OtherPtrDecayToVoidPtr) { + auto expected = FormatArgImplFriend::GetVTablePtrForTest( + FormatArgImpl(static_cast<void *>(nullptr))); + EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest( + FormatArgImpl(static_cast<int *>(nullptr))), + expected); + EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest( + FormatArgImpl(static_cast<volatile int *>(nullptr))), + expected); + + auto p = static_cast<void (*)()>([] {}); + EXPECT_EQ(FormatArgImplFriend::GetVTablePtrForTest(FormatArgImpl(p)), + expected); +} + +TEST_F(FormatArgImplTest, WorksWithCharArraysOfUnknownSize) { + std::string s; + FormatSinkImpl sink(&s); + FormatConversionSpecImpl conv; + FormatConversionSpecImplFriend::SetConversionChar( + FormatConversionCharInternal::s, &conv); + FormatConversionSpecImplFriend::SetFlags(Flags(), &conv); + FormatConversionSpecImplFriend::SetWidth(-1, &conv); + FormatConversionSpecImplFriend::SetPrecision(-1, &conv); + EXPECT_TRUE( + FormatArgImplFriend::Convert(FormatArgImpl(kMyArray), conv, &sink)); + sink.Flush(); + EXPECT_EQ("ABCDE", s); +} +const char kMyArray[] = "ABCDE"; + +} // namespace +} // namespace str_format_internal +ABSL_NAMESPACE_END +} // namespace absl |