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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/command_line.h"
#include "base/memory/raw_ptr.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/task_manager/mock_web_contents_task_manager.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "content/public/browser/back_forward_cache.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_widget_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/common/content_features.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/test_utils.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "ui/base/l10n/l10n_util.h"
namespace task_manager {
namespace {
// URL of a test page on a.com that has two cross-site iframes to b.com and
// c.com.
const char kCrossSitePageUrl[] = "/cross-site/a.com/iframe_cross_site.html";
// URL of a test page on a.com that has no cross-site iframes.
const char kSimplePageUrl[] = "/cross-site/a.com/title2.html";
std::u16string GetExpectedSubframeTitlePrefix() {
return l10n_util::GetStringFUTF16(IDS_TASK_MANAGER_SUBFRAME_PREFIX,
std::u16string());
}
std::u16string PrefixExpectedBFCacheTitle(const std::string& title,
bool is_subframe) {
const auto msg_id = is_subframe
? IDS_TASK_MANAGER_BACK_FORWARD_CACHE_SUBFRAME_PREFIX
: IDS_TASK_MANAGER_BACK_FORWARD_CACHE_PREFIX;
return l10n_util::GetStringFUTF16(msg_id, base::UTF8ToUTF16(title));
}
std::u16string PrefixExpectedTabTitle(const std::string& title) {
return l10n_util::GetStringFUTF16(IDS_TASK_MANAGER_TAB_PREFIX,
base::UTF8ToUTF16(title));
}
} // namespace
// A test for OOPIFs and how they show up in the task manager as
// SubframeTasks.
class SubframeTaskBrowserTest : public InProcessBrowserTest {
public:
SubframeTaskBrowserTest() = default;
SubframeTaskBrowserTest(const SubframeTaskBrowserTest&) = delete;
SubframeTaskBrowserTest& operator=(const SubframeTaskBrowserTest&) = delete;
~SubframeTaskBrowserTest() override = default;
void SetUpCommandLine(base::CommandLine* command_line) override {
content::IsolateAllSitesForTesting(command_line);
}
void SetUpOnMainThread() override {
host_resolver()->AddRule("*", "127.0.0.1");
ASSERT_TRUE(embedded_test_server()->InitializeAndListen());
content::SetupCrossSiteRedirector(embedded_test_server());
embedded_test_server()->StartAcceptingConnections();
}
void NavigateTo(const char* page_url) const {
ASSERT_TRUE(ui_test_utils::NavigateToURL(
browser(), embedded_test_server()->GetURL(page_url)));
}
};
// Makes sure that, if sites are isolated, the task manager will show the
// expected SubframeTasks, and they will be shown as running on different
// processes as expected.
IN_PROC_BROWSER_TEST_F(SubframeTaskBrowserTest, TaskManagerShowsSubframeTasks) {
MockWebContentsTaskManager task_manager;
EXPECT_TRUE(task_manager.tasks().empty());
task_manager.StartObserving();
// Currently only the about:blank page.
ASSERT_EQ(1U, task_manager.tasks().size());
const Task* about_blank_task = task_manager.tasks().front();
EXPECT_EQ(Task::RENDERER, about_blank_task->GetType());
EXPECT_EQ(PrefixExpectedTabTitle("about:blank"), about_blank_task->title());
NavigateTo(kCrossSitePageUrl);
// Whether sites are isolated or not, we expect to have at least one tab
// contents task.
ASSERT_GE(task_manager.tasks().size(), 1U);
const Task* cross_site_task = task_manager.tasks().front();
EXPECT_EQ(Task::RENDERER, cross_site_task->GetType());
EXPECT_EQ(PrefixExpectedTabTitle("cross-site iframe test"),
cross_site_task->title());
if (!content::AreAllSitesIsolatedForTesting()) {
// Sites are not isolated. No SubframeTasks are expected, just the above
// task.
ASSERT_EQ(1U, task_manager.tasks().size());
} else {
// Sites are isolated. We expect, in addition to the above task, two more
// SubframeTasks, one for b.com and another for c.com.
ASSERT_EQ(3U, task_manager.tasks().size());
const Task* subframe_task_1 = task_manager.tasks()[1];
const Task* subframe_task_2 = task_manager.tasks()[2];
EXPECT_EQ(Task::RENDERER, subframe_task_1->GetType());
EXPECT_EQ(Task::RENDERER, subframe_task_2->GetType());
EXPECT_TRUE(base::StartsWith(subframe_task_1->title(),
GetExpectedSubframeTitlePrefix(),
base::CompareCase::INSENSITIVE_ASCII));
EXPECT_TRUE(base::StartsWith(subframe_task_2->title(),
GetExpectedSubframeTitlePrefix(),
base::CompareCase::INSENSITIVE_ASCII));
// All tasks must be running on different processes.
EXPECT_NE(subframe_task_1->process_id(), subframe_task_2->process_id());
EXPECT_NE(subframe_task_1->process_id(), cross_site_task->process_id());
EXPECT_NE(subframe_task_2->process_id(), cross_site_task->process_id());
}
// If we navigate to the simple page on a.com which doesn't have cross-site
// iframes, we expect not to have any SubframeTasks, except if the previous
// page is saved in the back-forward cache.
NavigateTo(kSimplePageUrl);
ASSERT_EQ(
content::BackForwardCache::IsBackForwardCacheFeatureEnabled() ? 4U : 1U,
task_manager.tasks().size());
const auto& tasks = task_manager.tasks();
// Main page and two cross-origin iframes.
if (content::BackForwardCache::IsBackForwardCacheFeatureEnabled()) {
EXPECT_EQ(
PrefixExpectedBFCacheTitle("http://a.com/", /*is_subframe=*/false),
tasks[0]->title());
EXPECT_EQ(PrefixExpectedBFCacheTitle("http://b.com/",
/*is_subframe=*/true),
tasks[1]->title());
EXPECT_EQ(PrefixExpectedBFCacheTitle("http://c.com/",
/*is_subframe=*/true),
tasks[2]->title());
}
// When navigation to |kSimplePageUrl| happens, tasks are first created for
// page a.com and two cross-origin iframes b.com and c.com from
// |RenderFrameHostStateChange|, then the task for |kSimplePageUrl| is created
// from |DidFinishNavigation| when the navigation completes. Thus |.back()|.
const Task* simple_page_task = tasks.back();
EXPECT_EQ(Task::RENDERER, simple_page_task->GetType());
EXPECT_EQ(PrefixExpectedTabTitle("Title Of Awesomeness"),
simple_page_task->title());
}
// Allows listening to unresponsive task events.
class HungWebContentsTaskManager : public MockWebContentsTaskManager {
public:
HungWebContentsTaskManager() : unresponsive_task_(nullptr) {}
void TaskUnresponsive(Task* task) override { unresponsive_task_ = task; }
Task* unresponsive_task() { return unresponsive_task_; }
private:
raw_ptr<Task, DanglingUntriaged> unresponsive_task_;
};
// If sites are isolated, makes sure that subframe tasks can react to
// unresponsive renderers.
IN_PROC_BROWSER_TEST_F(SubframeTaskBrowserTest, TaskManagerHungSubframe) {
// This test only makes sense if we have subframe processes.
if (!content::AreAllSitesIsolatedForTesting())
return;
HungWebContentsTaskManager task_manager;
EXPECT_TRUE(task_manager.tasks().empty());
task_manager.StartObserving();
NavigateTo(kCrossSitePageUrl);
// We expect SubframeTasks for b.com and c.com, in either order.
ASSERT_EQ(3U, task_manager.tasks().size());
const Task* subframe_task_1 = task_manager.tasks()[1];
const Task* subframe_task_2 = task_manager.tasks()[2];
EXPECT_EQ(Task::RENDERER, subframe_task_1->GetType());
EXPECT_EQ(Task::RENDERER, subframe_task_2->GetType());
EXPECT_TRUE(base::StartsWith(subframe_task_1->title(),
GetExpectedSubframeTitlePrefix(),
base::CompareCase::INSENSITIVE_ASCII));
EXPECT_TRUE(base::StartsWith(subframe_task_2->title(),
GetExpectedSubframeTitlePrefix(),
base::CompareCase::INSENSITIVE_ASCII));
// Nothing should have hung yet.
EXPECT_EQ(nullptr, task_manager.unresponsive_task());
// Simulate a hang in one of the subframe processes.
content::WebContents* web_contents =
browser()->tab_strip_model()->GetActiveWebContents();
content::RenderFrameHost* subframe1 = ChildFrameAt(web_contents, 0);
ASSERT_TRUE(subframe1);
SimulateUnresponsiveRenderer(web_contents,
subframe1->GetView()->GetRenderWidgetHost());
// Verify task_observer saw one of the two subframe tasks. (There's a race,
// so it could be either one.)
Task* unresponsive_task = task_manager.unresponsive_task();
EXPECT_NE(nullptr, unresponsive_task);
EXPECT_TRUE(unresponsive_task == subframe_task_1 ||
unresponsive_task == subframe_task_2);
}
} // namespace task_manager
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