1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
content / browser / web_contents / web_contents_user_data_unittest.cc [blame]
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/public/browser/web_contents_user_data.h"
#include <memory>
#include "content/public/browser/web_contents.h"
#include "content/public/test/test_renderer_host.h"
#include "content/public/test/web_contents_tester.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
class WebContentsAttachedClass1
: public WebContentsUserData<WebContentsAttachedClass1> {
public:
~WebContentsAttachedClass1() override = default;
private:
explicit WebContentsAttachedClass1(WebContents* contents)
: WebContentsUserData<WebContentsAttachedClass1>(*contents) {}
friend class WebContentsUserData<WebContentsAttachedClass1>;
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
WEB_CONTENTS_USER_DATA_KEY_IMPL(WebContentsAttachedClass1);
class WebContentsAttachedClass2
: public WebContentsUserData<WebContentsAttachedClass2> {
public:
~WebContentsAttachedClass2() override = default;
private:
explicit WebContentsAttachedClass2(WebContents* contents)
: WebContentsUserData<WebContentsAttachedClass2>(*contents) {}
friend class WebContentsUserData<WebContentsAttachedClass2>;
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
WEB_CONTENTS_USER_DATA_KEY_IMPL(WebContentsAttachedClass2);
typedef RenderViewHostTestHarness WebContentsUserDataTest;
TEST_F(WebContentsUserDataTest, OneInstanceTwoAttachments) {
WebContents* contents = web_contents();
WebContentsAttachedClass1* class1 =
WebContentsAttachedClass1::FromWebContents(contents);
ASSERT_EQ(nullptr, class1);
WebContentsAttachedClass2* class2 =
WebContentsAttachedClass2::FromWebContents(contents);
ASSERT_EQ(nullptr, class2);
WebContentsAttachedClass1::CreateForWebContents(contents);
class1 = WebContentsAttachedClass1::FromWebContents(contents);
ASSERT_TRUE(class1 != nullptr);
class2 = WebContentsAttachedClass2::FromWebContents(contents);
ASSERT_EQ(nullptr, class2);
WebContentsAttachedClass2::CreateForWebContents(contents);
WebContentsAttachedClass1* class1again =
WebContentsAttachedClass1::FromWebContents(contents);
ASSERT_TRUE(class1again != nullptr);
class2 = WebContentsAttachedClass2::FromWebContents(contents);
ASSERT_TRUE(class2 != nullptr);
ASSERT_EQ(class1, class1again);
ASSERT_NE(static_cast<void*>(class1), static_cast<void*>(class2));
}
TEST_F(WebContentsUserDataTest, TwoInstancesOneAttachment) {
WebContents* contents1 = web_contents();
std::unique_ptr<WebContents> contents2(
WebContentsTester::CreateTestWebContents(browser_context(), nullptr));
WebContentsAttachedClass1* one_class =
WebContentsAttachedClass1::FromWebContents(contents1);
ASSERT_EQ(nullptr, one_class);
WebContentsAttachedClass1* two_class =
WebContentsAttachedClass1::FromWebContents(contents2.get());
ASSERT_EQ(nullptr, two_class);
WebContentsAttachedClass1::CreateForWebContents(contents1);
one_class = WebContentsAttachedClass1::FromWebContents(contents1);
ASSERT_TRUE(one_class != nullptr);
two_class = WebContentsAttachedClass1::FromWebContents(contents2.get());
ASSERT_EQ(nullptr, two_class);
WebContentsAttachedClass1::CreateForWebContents(contents2.get());
WebContentsAttachedClass1* one_class_again =
WebContentsAttachedClass1::FromWebContents(contents1);
ASSERT_TRUE(one_class_again != nullptr);
two_class = WebContentsAttachedClass1::FromWebContents(contents2.get());
ASSERT_TRUE(two_class != nullptr);
ASSERT_EQ(one_class, one_class_again);
ASSERT_NE(one_class, two_class);
}
TEST_F(WebContentsUserDataTest, Idempotence) {
WebContents* contents = web_contents();
WebContentsAttachedClass1* clazz =
WebContentsAttachedClass1::FromWebContents(contents);
ASSERT_EQ(nullptr, clazz);
WebContentsAttachedClass1::CreateForWebContents(contents);
clazz = WebContentsAttachedClass1::FromWebContents(contents);
ASSERT_TRUE(clazz != nullptr);
WebContentsAttachedClass1::CreateForWebContents(contents);
WebContentsAttachedClass1* class_again =
WebContentsAttachedClass1::FromWebContents(contents);
ASSERT_TRUE(class_again != nullptr);
ASSERT_EQ(clazz, class_again);
}
class NonCopyableNonMovableClass {
public:
explicit NonCopyableNonMovableClass(int value) : value_(value) {}
NonCopyableNonMovableClass(const NonCopyableNonMovableClass&) = delete;
NonCopyableNonMovableClass& operator=(const NonCopyableNonMovableClass&) =
delete;
NonCopyableNonMovableClass(NonCopyableNonMovableClass&&) = delete;
NonCopyableNonMovableClass& operator=(NonCopyableNonMovableClass&&) = delete;
int value() const { return value_; }
private:
int value_;
};
class AttachedClassWithParams
: public WebContentsUserData<AttachedClassWithParams> {
public:
~AttachedClassWithParams() override = default;
int param1() const { return param1_; }
int param2() const { return param2_; }
private:
friend class WebContentsUserData<AttachedClassWithParams>;
explicit AttachedClassWithParams(WebContents* contents,
int param1,
NonCopyableNonMovableClass&& param2)
: WebContentsUserData<AttachedClassWithParams>(*contents),
param1_(param1),
param2_(param2.value()) {}
int param1_;
int param2_;
WEB_CONTENTS_USER_DATA_KEY_DECL();
};
WEB_CONTENTS_USER_DATA_KEY_IMPL(AttachedClassWithParams);
TEST_F(WebContentsUserDataTest, CreateWithParameters) {
ASSERT_EQ(nullptr, AttachedClassWithParams::FromWebContents(web_contents()));
AttachedClassWithParams::CreateForWebContents(web_contents(), 1,
NonCopyableNonMovableClass(42));
auto* instance = AttachedClassWithParams::FromWebContents(web_contents());
ASSERT_NE(nullptr, instance);
EXPECT_EQ(1, instance->param1());
EXPECT_EQ(42, instance->param2());
}
} // namespace content