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/*
* Copyright 2020 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "call/adaptation/broadcast_resource_listener.h"
#include "call/adaptation/test/fake_resource.h"
#include "call/adaptation/test/mock_resource_listener.h"
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
using ::testing::_;
using ::testing::StrictMock;
TEST(BroadcastResourceListenerTest, CreateAndRemoveAdapterResource) {
rtc::scoped_refptr<FakeResource> source_resource =
FakeResource::Create("SourceResource");
BroadcastResourceListener broadcast_resource_listener(source_resource);
broadcast_resource_listener.StartListening();
EXPECT_TRUE(broadcast_resource_listener.GetAdapterResources().empty());
rtc::scoped_refptr<Resource> adapter =
broadcast_resource_listener.CreateAdapterResource();
StrictMock<MockResourceListener> listener;
adapter->SetResourceListener(&listener);
EXPECT_EQ(std::vector<rtc::scoped_refptr<Resource>>{adapter},
broadcast_resource_listener.GetAdapterResources());
// The removed adapter is not referenced by the broadcaster.
broadcast_resource_listener.RemoveAdapterResource(adapter);
EXPECT_TRUE(broadcast_resource_listener.GetAdapterResources().empty());
// The removed adapter is not forwarding measurements.
EXPECT_CALL(listener, OnResourceUsageStateMeasured(_, _)).Times(0);
source_resource->SetUsageState(ResourceUsageState::kOveruse);
// Cleanup.
adapter->SetResourceListener(nullptr);
broadcast_resource_listener.StopListening();
}
TEST(BroadcastResourceListenerTest, AdapterNameIsBasedOnSourceResourceName) {
rtc::scoped_refptr<FakeResource> source_resource =
FakeResource::Create("FooBarResource");
BroadcastResourceListener broadcast_resource_listener(source_resource);
broadcast_resource_listener.StartListening();
rtc::scoped_refptr<Resource> adapter =
broadcast_resource_listener.CreateAdapterResource();
EXPECT_EQ("FooBarResourceAdapter", adapter->Name());
broadcast_resource_listener.RemoveAdapterResource(adapter);
broadcast_resource_listener.StopListening();
}
TEST(BroadcastResourceListenerTest, AdaptersForwardsUsageMeasurements) {
rtc::scoped_refptr<FakeResource> source_resource =
FakeResource::Create("SourceResource");
BroadcastResourceListener broadcast_resource_listener(source_resource);
broadcast_resource_listener.StartListening();
StrictMock<MockResourceListener> destination_listener1;
StrictMock<MockResourceListener> destination_listener2;
rtc::scoped_refptr<Resource> adapter1 =
broadcast_resource_listener.CreateAdapterResource();
adapter1->SetResourceListener(&destination_listener1);
rtc::scoped_refptr<Resource> adapter2 =
broadcast_resource_listener.CreateAdapterResource();
adapter2->SetResourceListener(&destination_listener2);
// Expect kOveruse to be echoed.
EXPECT_CALL(destination_listener1, OnResourceUsageStateMeasured(_, _))
.Times(1)
.WillOnce([adapter1](rtc::scoped_refptr<Resource> resource,
ResourceUsageState usage_state) {
EXPECT_EQ(adapter1, resource);
EXPECT_EQ(ResourceUsageState::kOveruse, usage_state);
});
EXPECT_CALL(destination_listener2, OnResourceUsageStateMeasured(_, _))
.Times(1)
.WillOnce([adapter2](rtc::scoped_refptr<Resource> resource,
ResourceUsageState usage_state) {
EXPECT_EQ(adapter2, resource);
EXPECT_EQ(ResourceUsageState::kOveruse, usage_state);
});
source_resource->SetUsageState(ResourceUsageState::kOveruse);
// Expect kUnderuse to be echoed.
EXPECT_CALL(destination_listener1, OnResourceUsageStateMeasured(_, _))
.Times(1)
.WillOnce([adapter1](rtc::scoped_refptr<Resource> resource,
ResourceUsageState usage_state) {
EXPECT_EQ(adapter1, resource);
EXPECT_EQ(ResourceUsageState::kUnderuse, usage_state);
});
EXPECT_CALL(destination_listener2, OnResourceUsageStateMeasured(_, _))
.Times(1)
.WillOnce([adapter2](rtc::scoped_refptr<Resource> resource,
ResourceUsageState usage_state) {
EXPECT_EQ(adapter2, resource);
EXPECT_EQ(ResourceUsageState::kUnderuse, usage_state);
});
source_resource->SetUsageState(ResourceUsageState::kUnderuse);
// Adapters have to be unregistered before they or the broadcaster is
// destroyed, ensuring safe use of raw pointers.
adapter1->SetResourceListener(nullptr);
adapter2->SetResourceListener(nullptr);
broadcast_resource_listener.RemoveAdapterResource(adapter1);
broadcast_resource_listener.RemoveAdapterResource(adapter2);
broadcast_resource_listener.StopListening();
}
} // namespace webrtc
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