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// Copyright 2018 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 <tuple>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/run_loop.h"
#include "base/test/gmock_callback_support.h"
#include "base/test/task_environment.h"
#include "media/base/decoder_buffer.h"
#include "media/base/fallback_video_decoder.h"
#include "media/base/mock_filters.h"
#include "media/base/test_helpers.h"
#include "media/base/video_decoder.h"
#include "media/base/video_decoder_config.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest-param-test.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::base::test::RunOnceCallback;
using ::testing::_;
using ::testing::StrictMock;
namespace media {
class FallbackVideoDecoderUnittest : public ::testing::TestWithParam<bool> {
public:
FallbackVideoDecoderUnittest()
: backup_decoder_(nullptr),
preferred_decoder_(nullptr),
fallback_decoder_(nullptr) {}
~FallbackVideoDecoderUnittest() override { Destroy(); }
std::unique_ptr<VideoDecoder> MakeMockDecoderWithExpectations(
bool is_fallback,
bool preferred_should_succeed) {
std::string n = is_fallback ? "Fallback" : "Preferred";
StrictMock<MockVideoDecoder>* result = new StrictMock<MockVideoDecoder>(n);
if (is_fallback && !preferred_should_succeed) {
EXPECT_CALL(*result, Initialize_(_, _, _, _, _, _))
.WillOnce(RunOnceCallback<3>(OkStatus()));
}
if (!is_fallback) {
preferred_decoder_ = result;
EXPECT_CALL(*result, Initialize_(_, _, _, _, _, _))
.WillOnce(RunOnceCallback<3>(preferred_should_succeed
? OkStatus()
: StatusCode::kCodeOnlyForTesting));
} else {
backup_decoder_ = result;
}
return std::unique_ptr<VideoDecoder>(result);
}
void Initialize(bool preferred_should_succeed) {
fallback_decoder_ = new FallbackVideoDecoder(
MakeMockDecoderWithExpectations(false, preferred_should_succeed),
MakeMockDecoderWithExpectations(true, preferred_should_succeed));
fallback_decoder_->Initialize(
video_decoder_config_, false, nullptr,
base::BindOnce([](Status status) { EXPECT_TRUE(status.is_ok()); }),
base::DoNothing(), base::DoNothing());
}
protected:
void Destroy() { std::default_delete<VideoDecoder>()(fallback_decoder_); }
bool PreferredShouldSucceed() { return GetParam(); }
base::test::TaskEnvironment task_environment_;
StrictMock<MockVideoDecoder>* backup_decoder_;
StrictMock<MockVideoDecoder>* preferred_decoder_;
VideoDecoder* fallback_decoder_;
VideoDecoderConfig video_decoder_config_;
private:
DISALLOW_COPY_AND_ASSIGN(FallbackVideoDecoderUnittest);
};
INSTANTIATE_TEST_SUITE_P(DoesPreferredInitFail,
FallbackVideoDecoderUnittest,
testing::ValuesIn({true, false}));
#define EXPECT_ON_CORRECT_DECODER(method) \
if (PreferredShouldSucceed()) \
EXPECT_CALL(*preferred_decoder_, method); \
else \
EXPECT_CALL(*backup_decoder_, method) // Intentionally leave off semicolon.
// Do not test the name lookup; it is NOTREACHED.
TEST_P(FallbackVideoDecoderUnittest, MethodsRedirectedAsExpected) {
Initialize(PreferredShouldSucceed());
EXPECT_ON_CORRECT_DECODER(Decode_(_, _));
fallback_decoder_->Decode(nullptr, base::DoNothing());
EXPECT_ON_CORRECT_DECODER(Reset_(_));
fallback_decoder_->Reset(base::DoNothing());
EXPECT_ON_CORRECT_DECODER(NeedsBitstreamConversion());
fallback_decoder_->NeedsBitstreamConversion();
EXPECT_ON_CORRECT_DECODER(CanReadWithoutStalling());
fallback_decoder_->CanReadWithoutStalling();
EXPECT_ON_CORRECT_DECODER(GetMaxDecodeRequests());
fallback_decoder_->GetMaxDecodeRequests();
}
// │ first initialization │ second initialization │
// preferred │ preferred │ backup │ preferred │ backup │
// will succeed │ init called │ init called │ init called │ init called │
//───────────────┼─────────────┼─────────────┼─────────────┼─────────────┤
// false │ ✓ │ ✓ │ x │ ✓ │
// true │ ✓ │ x │ ✓ │ ✓ │
TEST_P(FallbackVideoDecoderUnittest, ReinitializeWithPreferredFailing) {
Initialize(PreferredShouldSucceed());
// If we succeedd the first time, it should still be alive.
if (PreferredShouldSucceed()) { // fail initialization
EXPECT_CALL(*preferred_decoder_, Initialize_(_, _, _, _, _, _))
.WillOnce(RunOnceCallback<3>(StatusCode::kCodeOnlyForTesting));
}
EXPECT_CALL(*backup_decoder_, Initialize_(_, _, _, _, _, _))
.WillOnce(RunOnceCallback<3>(OkStatus()));
fallback_decoder_->Initialize(
video_decoder_config_, false, nullptr,
base::BindOnce([](Status status) { EXPECT_TRUE(status.is_ok()); }),
base::DoNothing(), base::DoNothing());
}
// │ first initialization │ second initialization │
// preferred │ preferred │ backup │ preferred │ backup │
// will succeed │ init called │ init called │ init called │ init called │
//───────────────┼─────────────┼─────────────┼─────────────┼─────────────┤
// false │ ✓ │ ✓ │ x │ ✓ │
// true │ ✓ │ x │ ✓ │ x │
TEST_P(FallbackVideoDecoderUnittest, ReinitializeWithPreferredSuccessful) {
Initialize(PreferredShouldSucceed());
// If we succeedd the first time, it should still be alive.
if (PreferredShouldSucceed()) {
EXPECT_CALL(*preferred_decoder_, Initialize_(_, _, _, _, _, _))
.WillOnce(RunOnceCallback<3>(OkStatus())); // pass initialization
} else {
// Otherwise, preferred was deleted, and we only backup still exists.
EXPECT_CALL(*backup_decoder_, Initialize_(_, _, _, _, _, _))
.WillOnce(RunOnceCallback<3>(OkStatus()));
}
fallback_decoder_->Initialize(
video_decoder_config_, false, nullptr,
base::BindOnce([](Status status) { EXPECT_TRUE(status.is_ok()); }),
base::DoNothing(), base::DoNothing());
}
} // namespace media
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