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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/performance_manager/policies/frame_throttling_policy.h"
#include "base/memory/raw_ptr.h"
#include "base/test/scoped_feature_list.h"
#include "components/performance_manager/public/features.h"
#include "components/performance_manager/test_support/graph_test_harness.h"
#include "components/performance_manager/test_support/mock_graphs.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace performance_manager::policies {
class FrameThrottlingPolicyTest : public GraphTestHarness {
public:
using Super = GraphTestHarness;
FrameThrottlingPolicyTest() = default;
~FrameThrottlingPolicyTest() override = default;
FrameThrottlingPolicyTest(const FrameThrottlingPolicyTest& other) = delete;
FrameThrottlingPolicyTest& operator=(const FrameThrottlingPolicyTest&) =
delete;
void SetUp() override {
Super::SetUp();
auto policy = std::make_unique<FrameThrottlingPolicy>();
policy_ = policy.get();
graph()->PassToGraph(std::move(policy));
}
FrameThrottlingPolicy* policy() { return policy_; }
private:
raw_ptr<FrameThrottlingPolicy> policy_ = nullptr;
};
// Tests that FrameThrottlingPolicy correctly throttle/unthrottle specific frame
// sink when child frame importance state changes
TEST_F(FrameThrottlingPolicyTest, ChangeFrameImportanceState) {
base::test::ScopedFeatureList feature_list;
feature_list.InitAndEnableFeature(features::kUnimportantFramesPriority);
// Create a graph with a child frame as only child frames can be unimportant.
MockSinglePageWithMultipleProcessesGraph mock_graph(graph());
auto& frame_node = mock_graph.child_frame;
// Make the frame visible and unimportant.
frame_node->SetVisibility(FrameNode::Visibility::kVisible);
frame_node->SetIsImportant(false);
auto& id = frame_node->GetRenderFrameHostProxy().global_frame_routing_id();
EXPECT_TRUE(policy()->IsFrameSinkThrottled(id));
frame_node->SetIsImportant(true);
EXPECT_FALSE(policy()->IsFrameSinkThrottled(id));
}
} // namespace performance_manager::policies
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