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
171
172
173
|
// Copyright 2013 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 "extensions/browser/event_router.h"
#include <string>
#include "base/bind.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
#include "content/public/browser/notification_service.h"
#include "extensions/browser/event_listener_map.h"
#include "extensions/browser/extensions_test.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
namespace {
// A simple mock to keep track of listener additions and removals.
class MockEventRouterObserver : public EventRouter::Observer {
public:
MockEventRouterObserver()
: listener_added_count_(0),
listener_removed_count_(0) {}
virtual ~MockEventRouterObserver() {}
int listener_added_count() const { return listener_added_count_; }
int listener_removed_count() const { return listener_removed_count_; }
const std::string& last_event_name() const { return last_event_name_; }
void Reset() {
listener_added_count_ = 0;
listener_removed_count_ = 0;
last_event_name_.clear();
}
// EventRouter::Observer overrides:
void OnListenerAdded(const EventListenerInfo& details) override {
listener_added_count_++;
last_event_name_ = details.event_name;
}
void OnListenerRemoved(const EventListenerInfo& details) override {
listener_removed_count_++;
last_event_name_ = details.event_name;
}
private:
int listener_added_count_;
int listener_removed_count_;
std::string last_event_name_;
DISALLOW_COPY_AND_ASSIGN(MockEventRouterObserver);
};
typedef base::Callback<scoped_ptr<EventListener>(
const std::string&, // event_name
content::RenderProcessHost*, // process
base::DictionaryValue* // filter (takes ownership)
)> EventListenerConstructor;
scoped_ptr<EventListener> CreateEventListenerForExtension(
const std::string& extension_id,
const std::string& event_name,
content::RenderProcessHost* process,
base::DictionaryValue* filter) {
return EventListener::ForExtension(
event_name, extension_id, process, make_scoped_ptr(filter));
}
scoped_ptr<EventListener> CreateEventListenerForURL(
const GURL& listener_url,
const std::string& event_name,
content::RenderProcessHost* process,
base::DictionaryValue* filter) {
return EventListener::ForURL(
event_name, listener_url, process, make_scoped_ptr(filter));
}
} // namespace
class EventRouterTest : public ExtensionsTest {
public:
EventRouterTest()
: notification_service_(content::NotificationService::Create()) {}
protected:
// Tests adding and removing observers from EventRouter.
void RunEventRouterObserverTest(const EventListenerConstructor& constructor);
private:
scoped_ptr<content::NotificationService> notification_service_;
DISALLOW_COPY_AND_ASSIGN(EventRouterTest);
};
TEST_F(EventRouterTest, GetBaseEventName) {
// Normal event names are passed through unchanged.
EXPECT_EQ("foo.onBar", EventRouter::GetBaseEventName("foo.onBar"));
// Sub-events are converted to the part before the slash.
EXPECT_EQ("foo.onBar", EventRouter::GetBaseEventName("foo.onBar/123"));
}
// Tests adding and removing observers from EventRouter.
void EventRouterTest::RunEventRouterObserverTest(
const EventListenerConstructor& constructor) {
EventRouter router(NULL, NULL);
scoped_ptr<EventListener> listener =
constructor.Run("event_name", NULL, new base::DictionaryValue());
// Add/remove works without any observers.
router.OnListenerAdded(listener.get());
router.OnListenerRemoved(listener.get());
// Register observers that both match and don't match the event above.
MockEventRouterObserver matching_observer;
router.RegisterObserver(&matching_observer, "event_name");
MockEventRouterObserver non_matching_observer;
router.RegisterObserver(&non_matching_observer, "other");
// Adding a listener notifies the appropriate observers.
router.OnListenerAdded(listener.get());
EXPECT_EQ(1, matching_observer.listener_added_count());
EXPECT_EQ(0, non_matching_observer.listener_added_count());
// Removing a listener notifies the appropriate observers.
router.OnListenerRemoved(listener.get());
EXPECT_EQ(1, matching_observer.listener_removed_count());
EXPECT_EQ(0, non_matching_observer.listener_removed_count());
// Adding the listener again notifies again.
router.OnListenerAdded(listener.get());
EXPECT_EQ(2, matching_observer.listener_added_count());
EXPECT_EQ(0, non_matching_observer.listener_added_count());
// Removing the listener again notifies again.
router.OnListenerRemoved(listener.get());
EXPECT_EQ(2, matching_observer.listener_removed_count());
EXPECT_EQ(0, non_matching_observer.listener_removed_count());
// Adding a listener with a sub-event notifies the main observer with
// proper details.
matching_observer.Reset();
scoped_ptr<EventListener> sub_event_listener =
constructor.Run("event_name/1", NULL, new base::DictionaryValue());
router.OnListenerAdded(sub_event_listener.get());
EXPECT_EQ(1, matching_observer.listener_added_count());
EXPECT_EQ(0, matching_observer.listener_removed_count());
EXPECT_EQ("event_name/1", matching_observer.last_event_name());
// Ditto for removing the listener.
matching_observer.Reset();
router.OnListenerRemoved(sub_event_listener.get());
EXPECT_EQ(0, matching_observer.listener_added_count());
EXPECT_EQ(1, matching_observer.listener_removed_count());
EXPECT_EQ("event_name/1", matching_observer.last_event_name());
}
TEST_F(EventRouterTest, EventRouterObserverForExtensions) {
RunEventRouterObserverTest(
base::Bind(&CreateEventListenerForExtension, "extension_id"));
}
TEST_F(EventRouterTest, EventRouterObserverForURLs) {
RunEventRouterObserverTest(
base::Bind(&CreateEventListenerForURL, GURL("http://google.com/path")));
}
} // namespace extensions
|
