oom_priority_manager_browsertest.cc revision 2a99a7e74a7f215066514fe81d2bfa6639d9eddd 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/browser_process.h"
6#include "chrome/browser/chromeos/memory/oom_priority_manager.h"
7#include "chrome/browser/ui/browser.h"
8#include "chrome/browser/ui/browser_commands.h"
9#include "chrome/browser/ui/find_bar/find_bar_controller.h"
10#include "chrome/browser/ui/tabs/tab_strip_model.h"
11#include "chrome/common/url_constants.h"
12#include "chrome/test/base/in_process_browser_test.h"
13#include "content/public/browser/notification_service.h"
14#include "content/public/browser/notification_types.h"
15#include "content/public/test/test_utils.h"
16#include "googleurl/src/gurl.h"
17
18using content::OpenURLParams;
19
20namespace {
21
22typedef InProcessBrowserTest OomPriorityManagerTest;
23
24IN_PROC_BROWSER_TEST_F(OomPriorityManagerTest, OomPriorityManagerBasics) {
25  using content::WindowedNotificationObserver;
26
27  chromeos::OomPriorityManager* oom_priority_manager =
28      g_browser_process->oom_priority_manager();
29  EXPECT_FALSE(oom_priority_manager->recent_tab_discard());
30
31  // Get three tabs open.
32  WindowedNotificationObserver load1(
33      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
34      content::NotificationService::AllSources());
35  OpenURLParams open1(GURL(chrome::kChromeUIAboutURL), content::Referrer(),
36                      CURRENT_TAB, content::PAGE_TRANSITION_TYPED, false);
37  browser()->OpenURL(open1);
38  load1.Wait();
39
40  WindowedNotificationObserver load2(
41      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
42      content::NotificationService::AllSources());
43  OpenURLParams open2(GURL(chrome::kChromeUICreditsURL), content::Referrer(),
44                      NEW_FOREGROUND_TAB, content::PAGE_TRANSITION_TYPED,
45                      false);
46  browser()->OpenURL(open2);
47  load2.Wait();
48
49  WindowedNotificationObserver load3(
50      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
51      content::NotificationService::AllSources());
52  OpenURLParams open3(GURL(chrome::kChromeUITermsURL), content::Referrer(),
53                      NEW_FOREGROUND_TAB, content::PAGE_TRANSITION_TYPED,
54                      false);
55  browser()->OpenURL(open3);
56  load3.Wait();
57
58  EXPECT_EQ(3, browser()->tab_strip_model()->count());
59
60  // Navigate the current (third) tab to a different URL, so we can test
61  // back/forward later.
62  WindowedNotificationObserver load4(
63      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
64      content::NotificationService::AllSources());
65  OpenURLParams open4(GURL(chrome::kChromeUIVersionURL), content::Referrer(),
66                      CURRENT_TAB, content::PAGE_TRANSITION_TYPED,
67                      false);
68  browser()->OpenURL(open4);
69  load4.Wait();
70
71  // Navigate the third tab again, such that we have three navigation entries.
72  WindowedNotificationObserver load5(
73      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
74      content::NotificationService::AllSources());
75  OpenURLParams open5(GURL("chrome://dns"), content::Referrer(),
76                      CURRENT_TAB, content::PAGE_TRANSITION_TYPED,
77                      false);
78  browser()->OpenURL(open5);
79  load5.Wait();
80
81  EXPECT_EQ(3, browser()->tab_strip_model()->count());
82
83  // Discard a tab.  It should kill the first tab, since it was the oldest
84  // and was not selected.
85  EXPECT_TRUE(g_browser_process->oom_priority_manager()->DiscardTab());
86  EXPECT_EQ(3, browser()->tab_strip_model()->count());
87  EXPECT_TRUE(browser()->tab_strip_model()->IsTabDiscarded(0));
88  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(1));
89  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(2));
90  EXPECT_TRUE(oom_priority_manager->recent_tab_discard());
91
92  // Run discard again, make sure it kills the second tab.
93  EXPECT_TRUE(g_browser_process->oom_priority_manager()->DiscardTab());
94  EXPECT_EQ(3, browser()->tab_strip_model()->count());
95  EXPECT_TRUE(browser()->tab_strip_model()->IsTabDiscarded(0));
96  EXPECT_TRUE(browser()->tab_strip_model()->IsTabDiscarded(1));
97  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(2));
98
99  // Kill the third tab. It should not kill the last tab, since it is active
100  // tab.
101  EXPECT_FALSE(g_browser_process->oom_priority_manager()->DiscardTab());
102  EXPECT_TRUE(browser()->tab_strip_model()->IsTabDiscarded(0));
103  EXPECT_TRUE(browser()->tab_strip_model()->IsTabDiscarded(1));
104  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(2));
105
106  // Kill the third tab after making second tab active.
107  browser()->tab_strip_model()->ActivateTabAt(1, true);
108  EXPECT_EQ(1, browser()->tab_strip_model()->active_index());
109  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(1));
110  browser()->tab_strip_model()->DiscardWebContentsAt(2);
111  EXPECT_TRUE(browser()->tab_strip_model()->IsTabDiscarded(2));
112
113  // Force creation of the FindBarController.
114  browser()->GetFindBarController();
115
116  // Select the first tab.  It should reload.
117  WindowedNotificationObserver reload1(
118      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
119      content::NotificationService::AllSources());
120  chrome::SelectNumberedTab(browser(), 0);
121  reload1.Wait();
122  // Make sure the FindBarController gets the right WebContents.
123  EXPECT_EQ(browser()->GetFindBarController()->web_contents(),
124            browser()->tab_strip_model()->GetActiveWebContents());
125  EXPECT_EQ(0, browser()->tab_strip_model()->active_index());
126  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(0));
127  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(1));
128  EXPECT_TRUE(browser()->tab_strip_model()->IsTabDiscarded(2));
129
130  // Select the third tab. It should reload.
131  WindowedNotificationObserver reload2(
132      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
133      content::NotificationService::AllSources());
134  chrome::SelectNumberedTab(browser(), 2);
135  reload2.Wait();
136  EXPECT_EQ(2, browser()->tab_strip_model()->active_index());
137  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(0));
138  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(1));
139  EXPECT_FALSE(browser()->tab_strip_model()->IsTabDiscarded(2));
140
141  // Navigate the third tab back twice.  We used to crash here due to
142  // crbug.com/121373.
143  EXPECT_TRUE(chrome::CanGoBack(browser()));
144  EXPECT_FALSE(chrome::CanGoForward(browser()));
145  WindowedNotificationObserver back1(
146      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
147      content::NotificationService::AllSources());
148  chrome::GoBack(browser(), CURRENT_TAB);
149  back1.Wait();
150  EXPECT_TRUE(chrome::CanGoBack(browser()));
151  EXPECT_TRUE(chrome::CanGoForward(browser()));
152  WindowedNotificationObserver back2(
153      content::NOTIFICATION_NAV_ENTRY_COMMITTED,
154      content::NotificationService::AllSources());
155  chrome::GoBack(browser(), CURRENT_TAB);
156  back2.Wait();
157  EXPECT_FALSE(chrome::CanGoBack(browser()));
158  EXPECT_TRUE(chrome::CanGoForward(browser()));
159}
160
161}  // namespace
162