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// Copyright (c) 2012 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 "chrome/browser/oom_priority_manager.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/find_bar/find_bar_controller.h"
#include "chrome/common/url_constants.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/ui_test_utils.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "googleurl/src/gurl.h"
using content::OpenURLParams;
namespace {
typedef InProcessBrowserTest OomPriorityManagerTest;
IN_PROC_BROWSER_TEST_F(OomPriorityManagerTest, OomPriorityManagerBasics) {
using ui_test_utils::WindowedNotificationObserver;
// Get three tabs open.
WindowedNotificationObserver load1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open1(GURL(chrome::kChromeUIAboutURL), content::Referrer(),
CURRENT_TAB, content::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open1);
load1.Wait();
WindowedNotificationObserver load2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open2(GURL(chrome::kChromeUICreditsURL), content::Referrer(),
NEW_FOREGROUND_TAB, content::PAGE_TRANSITION_TYPED,
false);
browser()->OpenURL(open2);
load2.Wait();
WindowedNotificationObserver load3(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open3(GURL(chrome::kChromeUITermsURL), content::Referrer(),
NEW_FOREGROUND_TAB, content::PAGE_TRANSITION_TYPED,
false);
browser()->OpenURL(open3);
load3.Wait();
EXPECT_EQ(3, browser()->tab_count());
// Navigate the current (third) tab to a different URL, so we can test
// back/forward later.
WindowedNotificationObserver load4(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open4(GURL(chrome::kChromeUIVersionURL), content::Referrer(),
CURRENT_TAB, content::PAGE_TRANSITION_TYPED,
false);
browser()->OpenURL(open4);
load4.Wait();
// Navigate the third tab again, such that we have three navigation entries.
WindowedNotificationObserver load5(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open5(GURL("chrome://dns"), content::Referrer(),
CURRENT_TAB, content::PAGE_TRANSITION_TYPED,
false);
browser()->OpenURL(open5);
load5.Wait();
EXPECT_EQ(3, browser()->tab_count());
// Discard a tab. It should kill the first tab, since it was the oldest
// and was not selected.
EXPECT_TRUE(g_browser_process->oom_priority_manager()->DiscardTab());
EXPECT_EQ(3, browser()->tab_count());
EXPECT_TRUE(browser()->IsTabDiscarded(0));
EXPECT_FALSE(browser()->IsTabDiscarded(1));
EXPECT_FALSE(browser()->IsTabDiscarded(2));
// Run discard again, make sure it kills the second tab.
g_browser_process->oom_priority_manager()->DiscardTab();
EXPECT_EQ(3, browser()->tab_count());
EXPECT_TRUE(browser()->IsTabDiscarded(0));
EXPECT_TRUE(browser()->IsTabDiscarded(1));
EXPECT_FALSE(browser()->IsTabDiscarded(2));
// Kill the third tab
EXPECT_TRUE(g_browser_process->oom_priority_manager()->DiscardTab());
EXPECT_TRUE(browser()->IsTabDiscarded(0));
EXPECT_TRUE(browser()->IsTabDiscarded(1));
EXPECT_TRUE(browser()->IsTabDiscarded(2));
// Running when all tabs are discarded should do nothing.
EXPECT_FALSE(g_browser_process->oom_priority_manager()->DiscardTab());
// Force creation of the FindBarController.
browser()->GetFindBarController();
// Select the first tab. It should reload.
WindowedNotificationObserver reload1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
browser()->SelectNumberedTab(0);
reload1.Wait();
// Make sure the FindBarController gets the right TabContentsWrapper.
EXPECT_EQ(browser()->GetFindBarController()->tab_contents(),
browser()->GetSelectedTabContentsWrapper());
EXPECT_EQ(0, browser()->active_index());
EXPECT_FALSE(browser()->IsTabDiscarded(0));
EXPECT_TRUE(browser()->IsTabDiscarded(1));
EXPECT_TRUE(browser()->IsTabDiscarded(2));
// Select the third tab. It should reload.
WindowedNotificationObserver reload2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
browser()->SelectNumberedTab(2);
reload2.Wait();
EXPECT_EQ(2, browser()->active_index());
EXPECT_FALSE(browser()->IsTabDiscarded(0));
EXPECT_TRUE(browser()->IsTabDiscarded(1));
EXPECT_FALSE(browser()->IsTabDiscarded(2));
// Navigate the third tab back twice. We used to crash here due to
// crbug.com/121373.
EXPECT_TRUE(browser()->CanGoBack());
EXPECT_FALSE(browser()->CanGoForward());
WindowedNotificationObserver back1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
browser()->GoBack(CURRENT_TAB);
back1.Wait();
EXPECT_TRUE(browser()->CanGoBack());
EXPECT_TRUE(browser()->CanGoForward());
WindowedNotificationObserver back2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
browser()->GoBack(CURRENT_TAB);
back2.Wait();
EXPECT_FALSE(browser()->CanGoBack());
EXPECT_TRUE(browser()->CanGoForward());
}
} // namespace
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