59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
// Copyright 2019 The MediaPipe 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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// http://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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#ifndef MEDIAPIPE_DEPS_STATUS_MATCHERS_H_
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#define MEDIAPIPE_DEPS_STATUS_MATCHERS_H_
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "mediapipe/framework/deps/status.h"
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namespace mediapipe {
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// Monomorphic implementation of matcher IsOk() for a given type T.
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// T can be Status, StatusOr<>, or a reference to either of them.
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template <typename T>
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class MonoIsOkMatcherImpl : public testing::MatcherInterface<T> {
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public:
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void DescribeTo(std::ostream* os) const override { *os << "is OK"; }
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void DescribeNegationTo(std::ostream* os) const override {
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*os << "is not OK";
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}
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bool MatchAndExplain(T actual_value,
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testing::MatchResultListener*) const override {
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return actual_value.ok();
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}
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};
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// Implements IsOk() as a polymorphic matcher.
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class IsOkMatcher {
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public:
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template <typename T>
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operator testing::Matcher<T>() const { // NOLINT
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return testing::Matcher<T>(new MonoIsOkMatcherImpl<T>());
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}
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};
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// Returns a gMock matcher that matches a Status or StatusOr<> which is OK.
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inline IsOkMatcher IsOk() { return IsOkMatcher(); }
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} // namespace mediapipe
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// Macros for testing the results of functions that return absl::Status or
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// absl::StatusOr<T> (for any type T).
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#define MP_EXPECT_OK(expression) EXPECT_THAT(expression, mediapipe::IsOk())
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#define MP_ASSERT_OK(expression) ASSERT_THAT(expression, mediapipe::IsOk())
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#endif // MEDIAPIPE_DEPS_STATUS_MATCHERS_H_
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