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// Copyright 2020 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 "third_party/blink/renderer/modules/peerconnection/rtc_encoded_audio_underlying_source.h"
#include <memory>
#include "base/test/mock_callback.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_tester.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_binding_for_testing.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_rtc_encoded_audio_frame.h"
#include "third_party/blink/renderer/core/streams/readable_stream.h"
#include "third_party/blink/renderer/core/streams/readable_stream_default_controller_with_script_scope.h"
#include "third_party/blink/renderer/modules/peerconnection/rtc_encoded_audio_frame.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/wtf/cross_thread_functional.h"
#include "third_party/webrtc/api/frame_transformer_interface.h"
namespace blink {
namespace {
class FakeTransformableFrame : public webrtc::TransformableFrameInterface {
public:
FakeTransformableFrame() = default;
~FakeTransformableFrame() override = default;
rtc::ArrayView<const uint8_t> GetData() const override { return nullptr; }
void SetData(rtc::ArrayView<const uint8_t> data) override {}
uint32_t GetTimestamp() const override { return 0; }
uint32_t GetSsrc() const override { return 0; }
};
} // namespace
class RTCEncodedAudioUnderlyingSourceTest : public testing::Test {
public:
RTCEncodedAudioUnderlyingSource* CreateSource(ScriptState* script_state,
bool is_receiver = false) {
return MakeGarbageCollected<RTCEncodedAudioUnderlyingSource>(
script_state, WTF::CrossThreadBindOnce(disconnect_callback_.Get()),
is_receiver);
}
protected:
base::MockOnceClosure disconnect_callback_;
};
TEST_F(RTCEncodedAudioUnderlyingSourceTest,
SourceDataFlowsThroughStreamAndCloses) {
V8TestingScope v8_scope;
ScriptState* script_state = v8_scope.GetScriptState();
auto* source = CreateSource(script_state);
auto* stream =
ReadableStream::CreateWithCountQueueingStrategy(script_state, source, 0);
NonThrowableExceptionState exception_state;
auto* reader =
stream->GetDefaultReaderForTesting(script_state, exception_state);
ScriptPromiseTester read_tester(script_state,
reader->read(script_state, exception_state));
EXPECT_FALSE(read_tester.IsFulfilled());
source->OnFrameFromSource(std::make_unique<FakeTransformableFrame>());
read_tester.WaitUntilSettled();
EXPECT_TRUE(read_tester.IsFulfilled());
EXPECT_CALL(disconnect_callback_, Run());
source->Close();
}
TEST_F(RTCEncodedAudioUnderlyingSourceTest, CancelStream) {
V8TestingScope v8_scope;
auto* source = CreateSource(v8_scope.GetScriptState());
auto* stream = ReadableStream::CreateWithCountQueueingStrategy(
v8_scope.GetScriptState(), source, 0);
EXPECT_CALL(disconnect_callback_, Run());
NonThrowableExceptionState exception_state;
stream->cancel(v8_scope.GetScriptState(), exception_state);
}
TEST_F(RTCEncodedAudioUnderlyingSourceTest,
QueuedFramesAreDroppedWhenOverflow) {
V8TestingScope v8_scope;
ScriptState* script_state = v8_scope.GetScriptState();
auto* source = CreateSource(script_state);
// Create a stream, to ensure there is a controller associated to the source.
ReadableStream::CreateWithCountQueueingStrategy(v8_scope.GetScriptState(),
source, 0);
for (int i = 0; i > RTCEncodedAudioUnderlyingSource::kMinQueueDesiredSize;
--i) {
EXPECT_EQ(source->Controller()->DesiredSize(), i);
source->OnFrameFromSource(std::make_unique<FakeTransformableFrame>());
}
EXPECT_EQ(source->Controller()->DesiredSize(),
RTCEncodedAudioUnderlyingSource::kMinQueueDesiredSize);
source->OnFrameFromSource(std::make_unique<FakeTransformableFrame>());
EXPECT_EQ(source->Controller()->DesiredSize(),
RTCEncodedAudioUnderlyingSource::kMinQueueDesiredSize);
EXPECT_CALL(disconnect_callback_, Run());
source->Close();
}
} // namespace blink
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