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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
|
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/media/router/discovery/mdns/dns_sd_registry.h"
#include <memory>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/media/router/discovery/mdns/dns_sd_delegate.h"
#include "chrome/browser/media/router/discovery/mdns/dns_sd_device_lister.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::_;
using testing::NiceMock;
namespace media_router {
class MockDnsSdDeviceLister : public DnsSdDeviceLister {
public:
MockDnsSdDeviceLister() : DnsSdDeviceLister(nullptr, nullptr, "") {}
~MockDnsSdDeviceLister() override = default;
MOCK_METHOD0(Discover, void());
};
class TestDnsSdRegistry : public DnsSdRegistry {
public:
TestDnsSdRegistry() : DnsSdRegistry(nullptr), delegate_(nullptr) {}
~TestDnsSdRegistry() override = default;
MockDnsSdDeviceLister* GetListerForService(const std::string& service_type) {
return listers_[service_type];
}
int GetServiceListenerCount(const std::string& service_type) {
if (service_data_map_.find(service_type) == service_data_map_.end()) {
return 0;
}
return service_data_map_[service_type]->GetListenerCount();
}
MockDnsSdDeviceLister* GetLister(const std::string& service_type) {
return listers_.find(service_type) != listers_.end()
? listers_[service_type]
: nullptr;
}
DnsSdDelegate* GetDelegate() { return delegate_; }
protected:
DnsSdDeviceLister* CreateDnsSdDeviceLister(
DnsSdDelegate* delegate,
const std::string& service_type,
local_discovery::ServiceDiscoverySharedClient* discovery_client)
override {
delegate_ = delegate;
MockDnsSdDeviceLister* lister = new NiceMock<MockDnsSdDeviceLister>();
listers_[service_type] = lister;
return lister;
}
private:
std::map<std::string, raw_ptr<MockDnsSdDeviceLister, CtnExperimental>>
listers_;
// The last delegate used or NULL.
raw_ptr<DnsSdDelegate> delegate_;
};
class MockDnsSdObserver : public DnsSdRegistry::DnsSdObserver {
public:
MOCK_METHOD(void,
OnDnsSdEvent,
(const std::string&, const DnsSdRegistry::DnsSdServiceList&));
MOCK_METHOD(void, OnDnsSdPermissionRejected, ());
};
class DnsSdRegistryTest : public testing::Test {
public:
DnsSdRegistryTest() = default;
~DnsSdRegistryTest() override = default;
void SetUp() override {
registry_ = std::make_unique<TestDnsSdRegistry>();
registry_->AddObserver(&observer_);
}
protected:
std::unique_ptr<TestDnsSdRegistry> registry_;
MockDnsSdObserver observer_;
};
// Tests registering 2 listeners and removing one. The device lister should
// not be destroyed.
TEST_F(DnsSdRegistryTest, RegisterUnregisterListeners) {
const std::string service_type = "_testing._tcp.local";
EXPECT_CALL(observer_,
OnDnsSdEvent(service_type, DnsSdRegistry::DnsSdServiceList()))
.Times(2);
registry_->RegisterDnsSdListener(service_type);
registry_->RegisterDnsSdListener(service_type);
registry_->UnregisterDnsSdListener(service_type);
EXPECT_EQ(1, registry_->GetServiceListenerCount(service_type));
registry_->UnregisterDnsSdListener(service_type);
EXPECT_EQ(0, registry_->GetServiceListenerCount(service_type));
}
// Tests that verify calls to ForceDiscovery() are propagated to registered
// listeners.
TEST_F(DnsSdRegistryTest, ForceDiscovery) {
const std::string service_type1 = "_testing1._tcp.local";
const std::string service_type2 = "_testing2._tcp.local";
EXPECT_CALL(observer_,
OnDnsSdEvent(service_type1, DnsSdRegistry::DnsSdServiceList()));
EXPECT_CALL(observer_,
OnDnsSdEvent(service_type2, DnsSdRegistry::DnsSdServiceList()));
registry_->RegisterDnsSdListener(service_type1);
registry_->RegisterDnsSdListener(service_type2);
EXPECT_EQ(1, registry_->GetServiceListenerCount(service_type1));
EXPECT_EQ(1, registry_->GetServiceListenerCount(service_type2));
EXPECT_CALL(*registry_->GetLister(service_type1), Discover());
EXPECT_CALL(*registry_->GetLister(service_type2), Discover());
registry_->ResetAndDiscover();
}
// Tests registering a listener and receiving an added and updated event.
TEST_F(DnsSdRegistryTest, AddAndUpdate) {
const std::string service_type = "_testing._tcp.local";
const std::string ip_address1 = "192.168.0.100";
const std::string ip_address2 = "192.168.0.101";
DnsSdService service;
service.service_name = "_myDevice." + service_type;
service.ip_address = ip_address1;
DnsSdRegistry::DnsSdServiceList service_list;
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
// Add first service.
service_list.push_back(service);
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
// Clear services and add same one with different IP address.
service_list.clear();
service.ip_address = ip_address2;
service_list.push_back(service);
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
registry_->RegisterDnsSdListener(service_type);
service.ip_address = ip_address1;
registry_->GetDelegate()->ServiceChanged(service_type, true, service);
service.ip_address = ip_address2;
registry_->GetDelegate()->ServiceChanged(service_type, false, service);
}
TEST_F(DnsSdRegistryTest, AddServiceWithInvalidIPAddress) {
const std::string service_type = "_testing._tcp.local";
const std::string ip_address1 = "invalid";
DnsSdService service;
service.service_name = "_myDevice." + service_type;
DnsSdRegistry::DnsSdServiceList service_list;
EXPECT_CALL(observer_, OnDnsSdEvent(_, _)).Times(1);
registry_->RegisterDnsSdListener(service_type);
EXPECT_TRUE(testing::Mock::VerifyAndClearExpectations(&observer_));
EXPECT_CALL(observer_, OnDnsSdEvent(_, _)).Times(0);
service.ip_address = ip_address1;
registry_->GetDelegate()->ServiceChanged(service_type, true, service);
}
// Tests registering a listener and receiving an added and removed event.
TEST_F(DnsSdRegistryTest, AddAndRemove) {
const std::string service_type = "_testing._tcp.local";
DnsSdService service;
service.service_name = "_myDevice." + service_type;
service.ip_address = "192.168.0.100";
DnsSdRegistry::DnsSdServiceList service_list;
// Expect to be called twice with empty list (once on register, once after
// removing).
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list)).Times(2);
service_list.push_back(service);
// Expect to be called twice with 1 item (once after adding, once after adding
// again after removal).
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list)).Times(2);
registry_->RegisterDnsSdListener(service_type);
registry_->GetDelegate()->ServiceChanged(service_type, true, service);
registry_->GetDelegate()->ServiceRemoved(service_type, service.service_name);
registry_->GetDelegate()->ServiceChanged(service_type, true, service);
}
// Tests adding multiple services.
TEST_F(DnsSdRegistryTest, AddMultipleServices) {
const std::string service_type = "_testing._tcp.local";
DnsSdService service;
service.service_name = "_myDevice." + service_type;
service.ip_address = "192.168.0.100";
DnsSdService service2;
service2.service_name = "_myDevice2." + service_type;
service2.ip_address = "192.168.0.101";
DnsSdRegistry::DnsSdServiceList service_list;
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
service_list.push_back(service);
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
service_list.push_back(service2);
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
registry_->RegisterDnsSdListener(service_type);
registry_->GetDelegate()->ServiceChanged(service_type, true, service);
registry_->GetDelegate()->ServiceChanged(service_type, true, service2);
}
// Tests adding multiple services and handling a flush event.
TEST_F(DnsSdRegistryTest, FlushCache) {
testing::InSequence s;
const std::string service_type = "_testing._tcp.local";
DnsSdService service;
service.service_name = "_myDevice." + service_type;
service.ip_address = "192.168.0.100";
DnsSdService service2;
service2.service_name = "_myDevice2." + service_type;
service2.ip_address = "192.168.0.101";
DnsSdRegistry::DnsSdServiceList service_list;
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
service_list.push_back(service);
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
service_list.push_back(service2);
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
service_list.clear();
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
registry_->RegisterDnsSdListener(service_type);
registry_->GetDelegate()->ServiceChanged(service_type, true, service);
registry_->GetDelegate()->ServiceChanged(service_type, true, service2);
registry_->GetDelegate()->ServicesFlushed(service_type);
}
// Tests receiving an update from the DnsSdDelegate that does not change the
// service object does not notify the observer.
TEST_F(DnsSdRegistryTest, UpdateOnlyIfChanged) {
const std::string service_type = "_testing._tcp.local";
const std::string ip_address = "192.168.0.100";
DnsSdService service;
service.service_name = "_myDevice." + service_type;
service.ip_address = ip_address;
DnsSdRegistry::DnsSdServiceList service_list;
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
// Expect service_list with initial service.
service_list.push_back(service);
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
// Expect service_list with updated service.
service_list.clear();
service.ip_address = "192.168.0.101";
service_list.push_back(service);
EXPECT_CALL(observer_, OnDnsSdEvent(service_type, service_list));
// No more calls to observer_.
registry_->RegisterDnsSdListener(service_type);
service.ip_address = "192.168.0.100";
registry_->GetDelegate()->ServiceChanged(service_type, true, service);
// Update with changed ip address.
service.ip_address = "192.168.0.101";
registry_->GetDelegate()->ServiceChanged(service_type, false, service);
// Update with no changes to the service.
registry_->GetDelegate()->ServiceChanged(service_type, false, service);
}
} // namespace media_router
|
