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// Copyright 2019 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/ui/webui/webui_load_timer.h"
#include "base/run_loop.h"
#include "base/test/metrics/histogram_tester.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/prerender_test_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace {
const char kTestUrl[] = "chrome://chrome-urls";
const char kDocumentInitialLoadUmaId[] = "document_initial_load";
const char kDocumentLoadCompletedUmaId[] = "document_load_completed";
} // namespace
using WebuiLoadTimerTest = InProcessBrowserTest;
IN_PROC_BROWSER_TEST_F(WebuiLoadTimerTest, Timers) {
base::HistogramTester histogram_tester;
ASSERT_TRUE(ui_test_utils::NavigateToURL(browser(), GURL(kTestUrl)));
WebuiLoadTimer timer(browser()->tab_strip_model()->GetActiveWebContents(),
kDocumentInitialLoadUmaId, kDocumentLoadCompletedUmaId);
chrome::Reload(browser(), WindowOpenDisposition::CURRENT_TAB);
EXPECT_TRUE(content::WaitForLoadStop(
browser()->tab_strip_model()->GetActiveWebContents()));
histogram_tester.ExpectTotalCount(kDocumentInitialLoadUmaId, 1);
histogram_tester.ExpectTotalCount(kDocumentLoadCompletedUmaId, 1);
}
class WebuiLoadTimerPrerenderTest : public WebuiLoadTimerTest {
public:
WebuiLoadTimerPrerenderTest()
: prerender_helper_(
base::BindRepeating(&WebuiLoadTimerPrerenderTest::web_contents,
base::Unretained(this))) {}
void SetUp() override {
prerender_helper_.RegisterServerRequestMonitor(embedded_test_server());
ASSERT_TRUE(embedded_test_server()->Start());
InProcessBrowserTest::SetUp();
}
content::WebContents* web_contents() {
return browser()->tab_strip_model()->GetActiveWebContents();
}
protected:
content::test::PrerenderTestHelper prerender_helper_;
};
IN_PROC_BROWSER_TEST_F(WebuiLoadTimerPrerenderTest,
TimersOnPrerenderNavigation) {
base::HistogramTester histogram_tester;
WebuiLoadTimer timer(web_contents(), kDocumentInitialLoadUmaId,
kDocumentLoadCompletedUmaId);
ASSERT_TRUE(ui_test_utils::NavigateToURL(
browser(), embedded_test_server()->GetURL("/simple.html")));
histogram_tester.ExpectTotalCount(kDocumentInitialLoadUmaId, 1);
histogram_tester.ExpectTotalCount(kDocumentLoadCompletedUmaId, 1);
// Start a prerender.
GURL prerender_url = embedded_test_server()->GetURL("/title1.html");
prerender_helper_.AddPrerender(prerender_url);
// Ensure prerender navigation doesn't update WebuiLoadTimer.
histogram_tester.ExpectTotalCount(kDocumentInitialLoadUmaId, 1);
histogram_tester.ExpectTotalCount(kDocumentLoadCompletedUmaId, 1);
// Activate a prerendered page.
prerender_helper_.NavigatePrimaryPage(prerender_url);
// Ensure WebuiLoadTimer reports page load times.
histogram_tester.ExpectTotalCount(kDocumentInitialLoadUmaId, 2);
histogram_tester.ExpectTotalCount(kDocumentLoadCompletedUmaId, 2);
}
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