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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "platform/graphics/CompositorMutatorClient.h"
#include "base/callback.h"
#include "platform/graphics/CompositorMutation.h"
#include "platform/graphics/CompositorMutationsTarget.h"
#include "platform/graphics/CompositorMutator.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "wtf/PtrUtil.h"
#include <memory>
using ::testing::_;
namespace blink {
namespace {
class StubCompositorMutator : public CompositorMutator {
public:
StubCompositorMutator() {}
bool mutate(double monotonicTimeNow,
CompositorMutableStateProvider* stateProvider) override {
return false;
}
};
class MockCompositoMutationsTarget : public CompositorMutationsTarget {
public:
MOCK_METHOD1(applyMutations, void(CompositorMutations*));
};
TEST(CompositorMutatorClient, CallbackForNonNullMutationsShouldApply) {
MockCompositoMutationsTarget target;
CompositorMutatorClient client(new StubCompositorMutator, &target);
std::unique_ptr<CompositorMutations> mutations =
WTF::makeUnique<CompositorMutations>();
client.setMutationsForTesting(std::move(mutations));
EXPECT_CALL(target, applyMutations(_));
client.TakeMutations().Run();
}
TEST(CompositorMutatorClient, CallbackForNullMutationsShouldBeNoop) {
MockCompositoMutationsTarget target;
CompositorMutatorClient client(new StubCompositorMutator, &target);
EXPECT_CALL(target, applyMutations(_)).Times(0);
EXPECT_TRUE(client.TakeMutations().is_null());
}
} // namespace
} // namespace blink
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