Abseil Common Libraries (C++) (grcp 依赖)
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45 lines
1.4 KiB
45 lines
1.4 KiB
// Copyright 2018 The Abseil Authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// https://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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#include "absl/base/internal/errno_saver.h" |
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#include <cerrno> |
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#include "gmock/gmock.h" |
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#include "gtest/gtest.h" |
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#include "absl/base/internal/strerror.h" |
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namespace { |
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using ::testing::Eq; |
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struct ErrnoPrinter { |
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int no; |
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}; |
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std::ostream &operator<<(std::ostream &os, ErrnoPrinter ep) { |
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return os << absl::base_internal::StrError(ep.no) << " [" << ep.no << "]"; |
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} |
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bool operator==(ErrnoPrinter one, ErrnoPrinter two) { return one.no == two.no; } |
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TEST(ErrnoSaverTest, Works) { |
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errno = EDOM; |
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{ |
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absl::base_internal::ErrnoSaver errno_saver; |
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EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{EDOM})); |
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errno = ERANGE; |
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EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{ERANGE})); |
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EXPECT_THAT(ErrnoPrinter{errno_saver()}, Eq(ErrnoPrinter{EDOM})); |
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} |
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EXPECT_THAT(ErrnoPrinter{errno}, Eq(ErrnoPrinter{EDOM})); |
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} |
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} // namespace
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