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author | Benjamin Barenblat <bbaren@google.com> | 2021-04-08 10:23:55 -0400 |
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committer | Benjamin Barenblat <bbaren@google.com> | 2021-04-08 10:23:55 -0400 |
commit | feac56827dd1f0d159ea0bcf2ce37ef1990ac743 (patch) | |
tree | bc8ca767be02a5b22118108f9712b72ec64064c3 /absl/strings/internal/string_constant_test.cc | |
parent | 2b91b17d526b464840a3f45504c594cdb50152c5 (diff) | |
parent | 997aaf3a28308eba1b9156aa35ab7bca9688e9f6 (diff) |
Merge new upstream LTS 20210324.0
Diffstat (limited to 'absl/strings/internal/string_constant_test.cc')
-rw-r--r-- | absl/strings/internal/string_constant_test.cc | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/absl/strings/internal/string_constant_test.cc b/absl/strings/internal/string_constant_test.cc new file mode 100644 index 00000000..392833cf --- /dev/null +++ b/absl/strings/internal/string_constant_test.cc @@ -0,0 +1,60 @@ +// Copyright 2020 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/string_constant.h" + +#include "absl/meta/type_traits.h" +#include "gmock/gmock.h" +#include "gtest/gtest.h" + +namespace { + +using absl::strings_internal::MakeStringConstant; + +struct Callable { + constexpr absl::string_view operator()() const { + return absl::string_view("Callable", 8); + } +}; + +TEST(StringConstant, Traits) { + constexpr auto str = MakeStringConstant(Callable{}); + using T = decltype(str); + + EXPECT_TRUE(std::is_empty<T>::value); + EXPECT_TRUE(std::is_trivial<T>::value); + EXPECT_TRUE(absl::is_trivially_default_constructible<T>::value); + EXPECT_TRUE(absl::is_trivially_copy_constructible<T>::value); + EXPECT_TRUE(absl::is_trivially_move_constructible<T>::value); + EXPECT_TRUE(absl::is_trivially_destructible<T>::value); +} + +TEST(StringConstant, MakeFromCallable) { + constexpr auto str = MakeStringConstant(Callable{}); + using T = decltype(str); + EXPECT_EQ(Callable{}(), T::value); + EXPECT_EQ(Callable{}(), str()); +} + +TEST(StringConstant, MakeFromStringConstant) { + // We want to make sure the StringConstant itself is a valid input to the + // factory function. + constexpr auto str = MakeStringConstant(Callable{}); + constexpr auto str2 = MakeStringConstant(str); + using T = decltype(str2); + EXPECT_EQ(Callable{}(), T::value); + EXPECT_EQ(Callable{}(), str2()); +} + +} // namespace |