web_contents_user_data_unittest.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 "content/public/browser/web_contents_user_data.h"
6
7#include "base/memory/scoped_ptr.h"
8#include "content/public/browser/web_contents.h"
9#include "content/public/test/test_renderer_host.h"
10#include "content/public/test/web_contents_tester.h"
11#include "testing/gtest/include/gtest/gtest.h"
12
13namespace content {
14
15class WebContentsAttachedClass1
16    : public WebContentsUserData<WebContentsAttachedClass1> {
17 public:
18  virtual ~WebContentsAttachedClass1() {}
19 private:
20  explicit WebContentsAttachedClass1(WebContents* contents) {}
21  friend class WebContentsUserData<WebContentsAttachedClass1>;
22};
23
24class WebContentsAttachedClass2
25    : public WebContentsUserData<WebContentsAttachedClass2> {
26 public:
27  virtual ~WebContentsAttachedClass2() {}
28 private:
29  explicit WebContentsAttachedClass2(WebContents* contents) {}
30  friend class WebContentsUserData<WebContentsAttachedClass2>;
31};
32
33DEFINE_WEB_CONTENTS_USER_DATA_KEY(WebContentsAttachedClass1);
34DEFINE_WEB_CONTENTS_USER_DATA_KEY(WebContentsAttachedClass2);
35
36typedef RenderViewHostTestHarness WebContentsUserDataTest;
37
38TEST_F(WebContentsUserDataTest, OneInstanceTwoAttachments) {
39  WebContents* contents = web_contents();
40  WebContentsAttachedClass1* class1 =
41      WebContentsAttachedClass1::FromWebContents(contents);
42  ASSERT_EQ(NULL, class1);
43  WebContentsAttachedClass2* class2 =
44      WebContentsAttachedClass2::FromWebContents(contents);
45  ASSERT_EQ(NULL, class2);
46
47  WebContentsAttachedClass1::CreateForWebContents(contents);
48  class1 = WebContentsAttachedClass1::FromWebContents(contents);
49  ASSERT_TRUE(class1 != NULL);
50  class2 = WebContentsAttachedClass2::FromWebContents(contents);
51  ASSERT_EQ(NULL, class2);
52
53  WebContentsAttachedClass2::CreateForWebContents(contents);
54  WebContentsAttachedClass1* class1again =
55      WebContentsAttachedClass1::FromWebContents(contents);
56  ASSERT_TRUE(class1again != NULL);
57  class2 = WebContentsAttachedClass2::FromWebContents(contents);
58  ASSERT_TRUE(class2 != NULL);
59  ASSERT_EQ(class1, class1again);
60  ASSERT_NE(static_cast<void*>(class1), static_cast<void*>(class2));
61}
62
63TEST_F(WebContentsUserDataTest, TwoInstancesOneAttachment) {
64  WebContents* contents1 = web_contents();
65  scoped_ptr<WebContents> contents2(
66      WebContentsTester::CreateTestWebContents(browser_context(), NULL));
67
68  WebContentsAttachedClass1* one_class =
69      WebContentsAttachedClass1::FromWebContents(contents1);
70  ASSERT_EQ(NULL, one_class);
71  WebContentsAttachedClass1* two_class =
72      WebContentsAttachedClass1::FromWebContents(contents2.get());
73  ASSERT_EQ(NULL, two_class);
74
75  WebContentsAttachedClass1::CreateForWebContents(contents1);
76  one_class = WebContentsAttachedClass1::FromWebContents(contents1);
77  ASSERT_TRUE(one_class != NULL);
78  two_class = WebContentsAttachedClass1::FromWebContents(contents2.get());
79  ASSERT_EQ(NULL, two_class);
80
81  WebContentsAttachedClass1::CreateForWebContents(contents2.get());
82  WebContentsAttachedClass1* one_class_again =
83      WebContentsAttachedClass1::FromWebContents(contents1);
84  ASSERT_TRUE(one_class_again != NULL);
85  two_class = WebContentsAttachedClass1::FromWebContents(contents2.get());
86  ASSERT_TRUE(two_class != NULL);
87  ASSERT_EQ(one_class, one_class_again);
88  ASSERT_NE(one_class, two_class);
89}
90
91TEST_F(WebContentsUserDataTest, Idempotence) {
92  WebContents* contents = web_contents();
93  WebContentsAttachedClass1* clazz =
94      WebContentsAttachedClass1::FromWebContents(contents);
95  ASSERT_EQ(NULL, clazz);
96
97  WebContentsAttachedClass1::CreateForWebContents(contents);
98  clazz = WebContentsAttachedClass1::FromWebContents(contents);
99  ASSERT_TRUE(clazz != NULL);
100
101  WebContentsAttachedClass1::CreateForWebContents(contents);
102  WebContentsAttachedClass1* class_again =
103      WebContentsAttachedClass1::FromWebContents(contents);
104  ASSERT_TRUE(class_again != NULL);
105  ASSERT_EQ(clazz, class_again);
106}
107
108}  // namespace content
109