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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 "components/performance_manager/v8_memory/v8_context_tracker.h"
#include <memory>
#include "base/strings/stringprintf.h"
#include "components/performance_manager/execution_context/execution_context_registry_impl.h"
#include "components/performance_manager/public/graph/graph.h"
#include "components/performance_manager/test_support/performance_manager_browsertest_harness.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace performance_manager {
namespace v8_memory {
class V8ContextTrackerTest : public PerformanceManagerBrowserTestHarness {
public:
using Super = PerformanceManagerBrowserTestHarness;
V8ContextTrackerTest() = default;
~V8ContextTrackerTest() override = default;
void SetUp() override {
GetGraphFeaturesHelper().EnableV8ContextTracker();
Super::SetUp();
}
void ExpectCounts(size_t v8_context_count,
size_t execution_context_count,
size_t detached_v8_context_count,
size_t destroyed_execution_context_count) {
RunInGraph([&](Graph* graph) {
auto* v8ct = V8ContextTracker::GetFromGraph(graph);
ASSERT_TRUE(v8ct);
EXPECT_EQ(v8_context_count, v8ct->GetV8ContextCountForTesting());
EXPECT_EQ(execution_context_count,
v8ct->GetExecutionContextCountForTesting());
EXPECT_EQ(detached_v8_context_count,
v8ct->GetDetachedV8ContextCountForTesting());
EXPECT_EQ(destroyed_execution_context_count,
v8ct->GetDestroyedExecutionContextCountForTesting());
});
}
};
IN_PROC_BROWSER_TEST_F(V8ContextTrackerTest, AboutBlank) {
ExpectCounts(0, 0, 0, 0);
ASSERT_TRUE(NavigateToURL(shell(), GURL("about:blank")));
ExpectCounts(1, 1, 0, 0);
}
IN_PROC_BROWSER_TEST_F(V8ContextTrackerTest, SameOriginIframeAttributionData) {
GURL urla(embedded_test_server()->GetURL("a.com", "/a_embeds_a.html"));
ASSERT_TRUE(NavigateToURL(shell(), urla));
// Get pointers to the RFHs for each frame.
auto* contents = shell()->web_contents();
content::RenderFrameHost* main_rfh = contents->GetMainFrame();
content::RenderFrameHost* child_rfh = nullptr;
auto frames = contents->GetAllFrames();
ASSERT_EQ(2u, frames.size());
for (auto* rfh : contents->GetAllFrames()) {
if (rfh != main_rfh)
child_rfh = rfh;
}
auto frame_node =
PerformanceManager::GetFrameNodeForRenderFrameHost(child_rfh);
RunInGraph([&frame_node](Graph* graph) {
ASSERT_TRUE(frame_node);
auto* v8_context_tracker = V8ContextTracker::GetFromGraph(graph);
ASSERT_TRUE(v8_context_tracker);
auto* ec_state = v8_context_tracker->GetExecutionContextState(
frame_node->GetFrameToken());
ASSERT_TRUE(ec_state);
ASSERT_TRUE(ec_state->iframe_attribution_data);
});
}
IN_PROC_BROWSER_TEST_F(V8ContextTrackerTest, CrossOriginIframeAttributionData) {
GURL urla(embedded_test_server()->GetURL("a.com", "/a_embeds_b.html"));
ASSERT_TRUE(NavigateToURL(shell(), urla));
// Get pointers to the RFHs for each frame.
auto* contents = shell()->web_contents();
content::RenderFrameHost* main_rfh = contents->GetMainFrame();
content::RenderFrameHost* child_rfh = nullptr;
auto frames = contents->GetAllFrames();
ASSERT_EQ(2u, frames.size());
for (auto* rfh : contents->GetAllFrames()) {
if (rfh != main_rfh)
child_rfh = rfh;
}
auto frame_node =
PerformanceManager::GetFrameNodeForRenderFrameHost(child_rfh);
RunInGraph([&frame_node](Graph* graph) {
ASSERT_TRUE(frame_node);
auto* v8_context_tracker = V8ContextTracker::GetFromGraph(graph);
ASSERT_TRUE(v8_context_tracker);
auto* ec_state = v8_context_tracker->GetExecutionContextState(
frame_node->GetFrameToken());
ASSERT_TRUE(ec_state);
ASSERT_TRUE(ec_state->iframe_attribution_data);
});
}
IN_PROC_BROWSER_TEST_F(V8ContextTrackerTest, SameDocNavigation) {
ExpectCounts(0, 0, 0, 0);
GURL urla(embedded_test_server()->GetURL("a.com", "/a_embeds_b.html"));
ASSERT_TRUE(NavigateToURL(shell(), urla));
ExpectCounts(2, 2, 0, 0);
// Get pointers to the RFHs for each frame.
auto* contents = shell()->web_contents();
content::RenderFrameHost* rfha = contents->GetMainFrame();
content::RenderFrameHost* rfhb = nullptr;
auto frames = contents->GetAllFrames();
ASSERT_EQ(2u, frames.size());
for (auto* rfh : contents->GetAllFrames()) {
if (rfh != rfha)
rfhb = rfh;
}
// Execute a same document navigation in the child frame. This causes a
// v8 context to be detached, and new context attached to the execution
// context. So there will remain 2 execution contexts, there will be 3
// v8 contexts, 1 one of which is detached.
GURL urlb(embedded_test_server()->GetURL("b.com", "/b.html?foo=bar"));
ASSERT_TRUE(ExecJs(
rfhb, base::StringPrintf("location.href = \"%s\"", urlb.spec().c_str())));
WaitForLoad(contents);
ExpectCounts(3, 2, 1, 0);
}
IN_PROC_BROWSER_TEST_F(V8ContextTrackerTest, DetachedContext) {
ExpectCounts(0, 0, 0, 0);
GURL urla(embedded_test_server()->GetURL("a.com", "/a_embeds_a.html"));
ASSERT_TRUE(NavigateToURL(shell(), urla));
ExpectCounts(2, 2, 0, 0);
// Get pointers to the RFHs for each frame.
auto* contents = shell()->web_contents();
content::RenderFrameHost* rfha = contents->GetMainFrame();
// Keep a pointer to the window associated with the child iframe, but
// unload it.
ASSERT_TRUE(ExecJs(rfha,
"let iframe = document.getElementsByTagName('iframe')[0]; "
"document.body.leakyRef = iframe.contentWindow.window; "
"iframe.parentNode.removeChild(iframe); "
"console.log('detached and leaked iframe');"));
ExpectCounts(2, 2, 1, 1);
}
} // namespace v8_memory
} // namespace performance_manager
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