1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
// 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 <optional>
#include "base/run_loop.h"
#include "components/performance_manager/freezing/freezer.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/public/graph/page_node.h"
#include "components/performance_manager/public/performance_manager.h"
#include "components/performance_manager/test_support/performance_manager_browsertest_harness.h"
#include "content/public/browser/visibility.h"
#include "content/public/browser/web_contents.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
namespace performance_manager {
namespace {
using PerformanceManagerFreezingBrowserTest =
PerformanceManagerBrowserTestHarness;
class PageLifecycleWaiter : public PageNodeObserver {
public:
PageLifecycleWaiter() = default;
void SetExpectedLifecycleState(PageNode::LifecycleState lifecycle_state) {
run_loop_ = std::make_unique<base::RunLoop>();
expected_lifecycle_state_ = lifecycle_state;
}
void WaitForExpectedLifecycleState() {
CHECK(run_loop_);
run_loop_->Run();
run_loop_.reset();
}
// PageNodeObserver:
void OnPageLifecycleStateChanged(const PageNode* page_node) override {
CHECK(run_loop_);
EXPECT_EQ(page_node->GetLifecycleState(),
expected_lifecycle_state_.value());
run_loop_->Quit();
}
private:
std::unique_ptr<base::RunLoop> run_loop_;
std::optional<PageNode::LifecycleState> expected_lifecycle_state_;
};
} // namespace
// Verifies that a page can be frozen a second time after being unfrozen by a
// visibility change (regression test for issue fixed by crrev.com/c/5827022).
IN_PROC_BROWSER_TEST_F(PerformanceManagerFreezingBrowserTest, FreezeTwice) {
Freezer freezer;
ASSERT_TRUE(NavigateToURL(shell(), GURL("about:blank")));
content::WebContents* contents = shell()->web_contents();
contents->WasHidden();
base::WeakPtr<PageNode> page_node =
PerformanceManager::GetPrimaryPageNodeForWebContents(contents);
PageLifecycleWaiter waiter;
Graph* graph = PerformanceManager::GetGraph();
graph->AddPageNodeObserver(&waiter);
waiter.SetExpectedLifecycleState(PageNode::LifecycleState::kFrozen);
freezer.MaybeFreezePageNode(page_node.get());
waiter.WaitForExpectedLifecycleState();
waiter.SetExpectedLifecycleState(PageNode::LifecycleState::kRunning);
contents->WasShown();
waiter.WaitForExpectedLifecycleState();
contents->WasHidden();
waiter.SetExpectedLifecycleState(PageNode::LifecycleState::kFrozen);
freezer.MaybeFreezePageNode(page_node.get());
waiter.WaitForExpectedLifecycleState();
graph->RemovePageNodeObserver(&waiter);
}
} // namespace performance_manager
|
