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1 // Copyright 2015 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 "blimp/net/blimp_connection.h" | |
6 | |
7 #include <stddef.h> | |
8 | |
9 #include <string> | |
10 #include <utility> | |
11 | |
12 #include "base/callback_helpers.h" | |
13 #include "base/memory/ptr_util.h" | |
14 #include "base/message_loop/message_loop.h" | |
15 #include "blimp/common/create_blimp_message.h" | |
16 #include "blimp/common/proto/blimp_message.pb.h" | |
17 #include "blimp/net/common.h" | |
18 #include "blimp/net/connection_error_observer.h" | |
19 #include "blimp/net/message_port.h" | |
20 #include "blimp/net/test_common.h" | |
21 #include "net/base/completion_callback.h" | |
22 #include "net/base/io_buffer.h" | |
23 #include "net/base/net_errors.h" | |
24 #include "net/base/test_completion_callback.h" | |
25 #include "testing/gmock/include/gmock/gmock.h" | |
26 #include "testing/gtest/include/gtest/gtest.h" | |
27 | |
28 using testing::_; | |
29 using testing::InSequence; | |
30 using testing::Return; | |
31 using testing::SaveArg; | |
32 | |
33 namespace blimp { | |
34 namespace { | |
35 | |
36 class BlimpConnectionTest : public testing::Test { | |
37 public: | |
38 BlimpConnectionTest() { | |
39 std::unique_ptr<MockPacketReader> mock_reader(new MockPacketReader); | |
40 std::unique_ptr<MockPacketWriter> mock_writer(new MockPacketWriter); | |
41 mock_reader_ = mock_reader.get(); | |
42 mock_writer_ = mock_writer.get(); | |
43 connection_ = | |
44 base::MakeUnique<BlimpConnection>(base::MakeUnique<MessagePort>( | |
45 std::move(mock_reader), std::move(mock_writer))); | |
46 | |
47 connection_->AddConnectionErrorObserver(&error_observer1_); | |
48 connection_->AddConnectionErrorObserver(&error_observer2_); | |
49 connection_->AddConnectionErrorObserver(&error_observer3_); | |
50 connection_->RemoveConnectionErrorObserver(&error_observer3_); | |
51 } | |
52 | |
53 ~BlimpConnectionTest() override {} | |
54 | |
55 void DropConnection() { connection_.reset(); } | |
56 | |
57 protected: | |
58 std::unique_ptr<BlimpMessage> CreateInputMessage() { | |
59 InputMessage* input; | |
60 return CreateBlimpMessage(&input); | |
61 } | |
62 | |
63 std::unique_ptr<BlimpMessage> CreateControlMessage() { | |
64 TabControlMessage* control; | |
65 return CreateBlimpMessage(&control); | |
66 } | |
67 | |
68 base::MessageLoop message_loop_; | |
69 MockPacketReader* mock_reader_; | |
70 MockPacketWriter* mock_writer_; | |
71 testing::StrictMock<MockConnectionErrorObserver> error_observer1_; | |
72 testing::StrictMock<MockConnectionErrorObserver> error_observer2_; | |
73 | |
74 // This error observer is Removed() immediately after it's added; | |
75 // it should never be called. | |
76 testing::StrictMock<MockConnectionErrorObserver> error_observer3_; | |
77 | |
78 testing::StrictMock<MockBlimpMessageProcessor> receiver_; | |
79 std::unique_ptr<BlimpConnection> connection_; | |
80 }; | |
81 | |
82 // Write completes writing two packets asynchronously. | |
83 TEST_F(BlimpConnectionTest, AsyncTwoPacketsWrite) { | |
84 net::CompletionCallback write_packet_cb; | |
85 | |
86 InSequence s; | |
87 EXPECT_CALL(*mock_writer_, | |
88 WritePacket(BufferEqualsProto(*CreateInputMessage()), _)) | |
89 .WillOnce(SaveArg<1>(&write_packet_cb)) | |
90 .RetiresOnSaturation(); | |
91 EXPECT_CALL(*mock_writer_, | |
92 WritePacket(BufferEqualsProto(*CreateControlMessage()), _)) | |
93 .WillOnce(SaveArg<1>(&write_packet_cb)) | |
94 .RetiresOnSaturation(); | |
95 EXPECT_CALL(error_observer1_, OnConnectionError(_)).Times(0); | |
96 EXPECT_CALL(error_observer2_, OnConnectionError(_)).Times(0); | |
97 EXPECT_CALL(error_observer3_, OnConnectionError(_)).Times(0); | |
98 | |
99 BlimpMessageProcessor* sender = connection_->GetOutgoingMessageProcessor(); | |
100 net::TestCompletionCallback complete_cb_1; | |
101 ASSERT_TRUE(write_packet_cb.is_null()); | |
102 sender->ProcessMessage(CreateInputMessage(), | |
103 complete_cb_1.callback()); | |
104 ASSERT_FALSE(write_packet_cb.is_null()); | |
105 base::ResetAndReturn(&write_packet_cb).Run(net::OK); | |
106 EXPECT_EQ(net::OK, complete_cb_1.WaitForResult()); | |
107 | |
108 net::TestCompletionCallback complete_cb_2; | |
109 ASSERT_TRUE(write_packet_cb.is_null()); | |
110 sender->ProcessMessage(CreateControlMessage(), | |
111 complete_cb_2.callback()); | |
112 ASSERT_FALSE(write_packet_cb.is_null()); | |
113 base::ResetAndReturn(&write_packet_cb).Run(net::OK); | |
114 EXPECT_EQ(net::OK, complete_cb_2.WaitForResult()); | |
115 } | |
116 | |
117 // Writer completes writing two packets asynchronously. | |
118 // First write succeeds, second fails. | |
119 TEST_F(BlimpConnectionTest, AsyncTwoPacketsWriteWithError) { | |
120 net::CompletionCallback write_packet_cb; | |
121 | |
122 InSequence s; | |
123 EXPECT_CALL(*mock_writer_, | |
124 WritePacket(BufferEqualsProto(*CreateInputMessage()), _)) | |
125 .WillOnce(SaveArg<1>(&write_packet_cb)) | |
126 .RetiresOnSaturation(); | |
127 EXPECT_CALL(*mock_writer_, | |
128 WritePacket(BufferEqualsProto(*CreateControlMessage()), _)) | |
129 .WillOnce(SaveArg<1>(&write_packet_cb)) | |
130 .RetiresOnSaturation(); | |
131 EXPECT_CALL(error_observer1_, OnConnectionError(net::ERR_FAILED)); | |
132 EXPECT_CALL(error_observer2_, OnConnectionError(net::ERR_FAILED)); | |
133 EXPECT_CALL(error_observer3_, OnConnectionError(_)).Times(0); | |
134 | |
135 BlimpMessageProcessor* sender = connection_->GetOutgoingMessageProcessor(); | |
136 net::TestCompletionCallback complete_cb_1; | |
137 sender->ProcessMessage(CreateInputMessage(), | |
138 complete_cb_1.callback()); | |
139 base::ResetAndReturn(&write_packet_cb).Run(net::OK); | |
140 EXPECT_EQ(net::OK, complete_cb_1.WaitForResult()); | |
141 | |
142 net::TestCompletionCallback complete_cb_2; | |
143 sender->ProcessMessage(CreateControlMessage(), | |
144 complete_cb_2.callback()); | |
145 base::ResetAndReturn(&write_packet_cb).Run(net::ERR_FAILED); | |
146 EXPECT_EQ(net::ERR_FAILED, complete_cb_2.WaitForResult()); | |
147 } | |
148 | |
149 TEST_F(BlimpConnectionTest, DeleteHappyObserversAreOK) { | |
150 net::CompletionCallback write_packet_cb; | |
151 | |
152 InSequence s; | |
153 EXPECT_CALL(*mock_writer_, | |
154 WritePacket(BufferEqualsProto(*CreateInputMessage()), _)) | |
155 .WillOnce(SaveArg<1>(&write_packet_cb)) | |
156 .RetiresOnSaturation(); | |
157 EXPECT_CALL(error_observer1_, OnConnectionError(net::ERR_FAILED)) | |
158 .WillOnce(testing::InvokeWithoutArgs( | |
159 this, &BlimpConnectionTest::DropConnection)); | |
160 | |
161 BlimpMessageProcessor* sender = connection_->GetOutgoingMessageProcessor(); | |
162 net::TestCompletionCallback complete_cb_1; | |
163 sender->ProcessMessage(CreateInputMessage(), complete_cb_1.callback()); | |
164 base::ResetAndReturn(&write_packet_cb).Run(net::ERR_FAILED); | |
165 EXPECT_EQ(net::ERR_FAILED, complete_cb_1.WaitForResult()); | |
166 } | |
167 | |
168 // Verifies that a ReadPacket error causes ErrorObservers to be notified. | |
169 TEST_F(BlimpConnectionTest, ReadPacketErrorInvokesErrorObservers) { | |
170 scoped_refptr<net::GrowableIOBuffer> read_packet_buffer; | |
171 net::CompletionCallback read_packet_cb; | |
172 | |
173 EXPECT_CALL(*mock_reader_, ReadPacket(_, _)) | |
174 .WillOnce( | |
175 DoAll(SaveArg<0>(&read_packet_buffer), SaveArg<1>(&read_packet_cb))) | |
176 .RetiresOnSaturation(); | |
177 | |
178 EXPECT_CALL(error_observer1_, OnConnectionError(net::ERR_FAILED)); | |
179 EXPECT_CALL(error_observer2_, OnConnectionError(net::ERR_FAILED)); | |
180 EXPECT_CALL(error_observer3_, OnConnectionError(_)).Times(0); | |
181 | |
182 EXPECT_CALL(receiver_, MockableProcessMessage(_, _)).Times(0); | |
183 | |
184 // Trigger the first ReadPacket() call by setting the MessageProcessor. | |
185 connection_->SetIncomingMessageProcessor(&receiver_); | |
186 EXPECT_TRUE(read_packet_buffer); | |
187 EXPECT_FALSE(read_packet_cb.is_null()); | |
188 | |
189 // Signal an error back from the ReadPacket operation. | |
190 base::ResetAndReturn(&read_packet_cb).Run(net::ERR_FAILED); | |
191 } | |
192 | |
193 // Verifies that EndConnection messages received from the peer are | |
194 // routed through to registered ConnectionErrorObservers as errors. | |
195 TEST_F(BlimpConnectionTest, EndConnectionInvokesErrorObservers) { | |
196 scoped_refptr<net::GrowableIOBuffer> read_packet_buffer; | |
197 net::CompletionCallback read_packet_cb; | |
198 | |
199 EXPECT_CALL(*mock_reader_, ReadPacket(_, _)) | |
200 .WillOnce( | |
201 DoAll(SaveArg<0>(&read_packet_buffer), SaveArg<1>(&read_packet_cb))) | |
202 .WillOnce(Return()) | |
203 .RetiresOnSaturation(); | |
204 | |
205 EXPECT_CALL(error_observer1_, | |
206 OnConnectionError(EndConnectionMessage::PROTOCOL_MISMATCH)); | |
207 EXPECT_CALL(error_observer2_, | |
208 OnConnectionError(EndConnectionMessage::PROTOCOL_MISMATCH)); | |
209 EXPECT_CALL(error_observer3_, OnConnectionError(_)).Times(0); | |
210 | |
211 EXPECT_CALL(receiver_, MockableProcessMessage(_, _)).Times(0); | |
212 | |
213 // Trigger the first ReadPacket() call by setting the MessageProcessor. | |
214 connection_->SetIncomingMessageProcessor(&receiver_); | |
215 EXPECT_TRUE(read_packet_buffer); | |
216 EXPECT_FALSE(read_packet_cb.is_null()); | |
217 | |
218 // Create an EndConnection message to return from ReadPacket. | |
219 std::unique_ptr<BlimpMessage> message = | |
220 CreateEndConnectionMessage(EndConnectionMessage::PROTOCOL_MISMATCH); | |
221 | |
222 // Put the EndConnection message in the buffer and invoke the read callback. | |
223 read_packet_buffer->SetCapacity(message->ByteSize()); | |
224 ASSERT_TRUE(message->SerializeToArray(read_packet_buffer->data(), | |
225 message->GetCachedSize())); | |
226 base::ResetAndReturn(&read_packet_cb).Run(message->ByteSize()); | |
227 } | |
228 | |
229 } // namespace | |
230 } // namespace blimp | |
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