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1 # Copyright 2014 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 import unittest | |
6 | |
7 import mojo_unittest | |
8 from mojo.bindings import messaging | |
9 | |
10 # pylint: disable=E0611 | |
11 from mojo import system | |
12 | |
13 | |
14 class _ForwardingConnectionErrorHandler(messaging.ConnectionErrorHandler): | |
15 | |
16 def __init__(self, callback): | |
17 messaging.ConnectionErrorHandler.__init__(self) | |
18 self._callback = callback | |
19 | |
20 def OnError(self, result): | |
21 self._callback(result) | |
22 | |
23 | |
24 class ConnectorTest(mojo_unittest.MojoTestCase): | |
25 | |
26 def setUp(self): | |
27 super(ConnectorTest, self).setUp() | |
28 self.received_messages = [] | |
29 self.received_errors = [] | |
30 def _OnMessage(message): | |
31 self.received_messages.append(message) | |
32 return True | |
33 def _OnError(result): | |
34 self.received_errors.append(result) | |
35 handles = system.MessagePipe() | |
36 self.connector = messaging.Connector(handles.handle1) | |
37 self.connector.SetIncomingMessageReceiver( | |
38 messaging.ForwardingMessageReceiver(_OnMessage)) | |
39 self.connector.SetErrorHandler( | |
40 _ForwardingConnectionErrorHandler(_OnError)) | |
41 self.connector.Start() | |
42 self.handle = handles.handle0 | |
43 | |
44 | |
45 def tearDown(self): | |
46 self.connector = None | |
47 self.handle = None | |
48 super(ConnectorTest, self).tearDown() | |
49 | |
50 def testConnectorRead(self): | |
51 self.handle.WriteMessage() | |
52 self.loop.RunUntilIdle() | |
53 self.assertTrue(self.received_messages) | |
54 self.assertFalse(self.received_errors) | |
55 | |
56 def testConnectorWrite(self): | |
57 self.connector.Accept(messaging.Message()) | |
58 (result, _, _) = self.handle.ReadMessage() | |
59 self.assertEquals(result, system.RESULT_OK) | |
60 self.assertFalse(self.received_errors) | |
61 | |
62 def testConnectorCloseRemoteHandle(self): | |
63 self.handle.Close() | |
64 self.loop.RunUntilIdle() | |
65 self.assertFalse(self.received_messages) | |
66 self.assertTrue(self.received_errors) | |
67 self.assertEquals(self.received_errors[0], | |
68 system.RESULT_FAILED_PRECONDITION) | |
69 | |
70 def testConnectorDeleteConnector(self): | |
71 self.connector = None | |
72 (result, _, _) = self.handle.ReadMessage() | |
73 self.assertEquals(result, system.RESULT_FAILED_PRECONDITION) | |
74 | |
75 | |
76 class HeaderTest(unittest.TestCase): | |
77 | |
78 def testSimpleMessageHeader(self): | |
79 header = messaging.MessageHeader(0xdeadbeaf, messaging.NO_FLAG) | |
80 self.assertEqual(header.message_type, 0xdeadbeaf) | |
81 self.assertFalse(header.has_request_id) | |
82 self.assertFalse(header.expects_response) | |
83 self.assertFalse(header.is_response) | |
84 data = header.Serialize() | |
85 other_header = messaging.MessageHeader.Deserialize(data) | |
86 self.assertEqual(other_header.message_type, 0xdeadbeaf) | |
87 self.assertFalse(other_header.has_request_id) | |
88 self.assertFalse(other_header.expects_response) | |
89 self.assertFalse(other_header.is_response) | |
90 | |
91 def testMessageHeaderWithRequestID(self): | |
92 # Request message. | |
93 header = messaging.MessageHeader(0xdeadbeaf, | |
94 messaging.MESSAGE_EXPECTS_RESPONSE_FLAG) | |
95 | |
96 self.assertEqual(header.message_type, 0xdeadbeaf) | |
97 self.assertTrue(header.has_request_id) | |
98 self.assertTrue(header.expects_response) | |
99 self.assertFalse(header.is_response) | |
100 self.assertEqual(header.request_id, 0) | |
101 | |
102 data = header.Serialize() | |
103 other_header = messaging.MessageHeader.Deserialize(data) | |
104 | |
105 self.assertEqual(other_header.message_type, 0xdeadbeaf) | |
106 self.assertTrue(other_header.has_request_id) | |
107 self.assertTrue(other_header.expects_response) | |
108 self.assertFalse(other_header.is_response) | |
109 self.assertEqual(other_header.request_id, 0) | |
110 | |
111 header.request_id = 0xdeadbeafdeadbeaf | |
112 data = header.Serialize() | |
113 other_header = messaging.MessageHeader.Deserialize(data) | |
114 | |
115 self.assertEqual(other_header.request_id, 0xdeadbeafdeadbeaf) | |
116 | |
117 # Response message. | |
118 header = messaging.MessageHeader(0xdeadbeaf, | |
119 messaging.MESSAGE_IS_RESPONSE_FLAG, | |
120 0xdeadbeafdeadbeaf) | |
121 | |
122 self.assertEqual(header.message_type, 0xdeadbeaf) | |
123 self.assertTrue(header.has_request_id) | |
124 self.assertFalse(header.expects_response) | |
125 self.assertTrue(header.is_response) | |
126 self.assertEqual(header.request_id, 0xdeadbeafdeadbeaf) | |
127 | |
128 data = header.Serialize() | |
129 other_header = messaging.MessageHeader.Deserialize(data) | |
130 | |
131 self.assertEqual(other_header.message_type, 0xdeadbeaf) | |
132 self.assertTrue(other_header.has_request_id) | |
133 self.assertFalse(other_header.expects_response) | |
134 self.assertTrue(other_header.is_response) | |
135 self.assertEqual(other_header.request_id, 0xdeadbeafdeadbeaf) | |
136 | |
137 | |
138 class RouterTest(mojo_unittest.MojoTestCase): | |
139 | |
140 def setUp(self): | |
141 super(RouterTest, self).setUp() | |
142 self.received_messages = [] | |
143 self.received_errors = [] | |
144 def _OnMessage(message): | |
145 self.received_messages.append(message) | |
146 return True | |
147 def _OnError(result): | |
148 self.received_errors.append(result) | |
149 handles = system.MessagePipe() | |
150 self.router = messaging.Router(handles.handle1) | |
151 self.router.SetIncomingMessageReceiver( | |
152 messaging.ForwardingMessageReceiver(_OnMessage)) | |
153 self.router.SetErrorHandler( | |
154 _ForwardingConnectionErrorHandler(_OnError)) | |
155 self.router.Start() | |
156 self.handle = handles.handle0 | |
157 | |
158 def tearDown(self): | |
159 self.router = None | |
160 self.handle = None | |
161 super(RouterTest, self).tearDown() | |
162 | |
163 def testSimpleMessage(self): | |
164 header_data = messaging.MessageHeader(0, messaging.NO_FLAG).Serialize() | |
165 message = messaging.Message(header_data) | |
166 self.router.Accept(message) | |
167 self.loop.RunUntilIdle() | |
168 self.assertFalse(self.received_errors) | |
169 self.assertFalse(self.received_messages) | |
170 (res, data, _) = self.handle.ReadMessage(bytearray(len(header_data))) | |
171 self.assertEquals(system.RESULT_OK, res) | |
172 self.assertEquals(data[0], header_data) | |
173 | |
174 def testSimpleReception(self): | |
175 header_data = messaging.MessageHeader(0, messaging.NO_FLAG).Serialize() | |
176 self.handle.WriteMessage(header_data) | |
177 self.loop.RunUntilIdle() | |
178 self.assertFalse(self.received_errors) | |
179 self.assertEquals(len(self.received_messages), 1) | |
180 self.assertEquals(self.received_messages[0].data, header_data) | |
181 | |
182 def testRequestResponse(self): | |
183 header_data = messaging.MessageHeader( | |
184 0, messaging.MESSAGE_EXPECTS_RESPONSE_FLAG).Serialize() | |
185 message = messaging.Message(header_data) | |
186 back_messages = [] | |
187 def OnBackMessage(message): | |
188 back_messages.append(message) | |
189 self.router.AcceptWithResponder(message, | |
190 messaging.ForwardingMessageReceiver( | |
191 OnBackMessage)) | |
192 self.loop.RunUntilIdle() | |
193 self.assertFalse(self.received_errors) | |
194 self.assertFalse(self.received_messages) | |
195 (res, data, _) = self.handle.ReadMessage(bytearray(len(header_data))) | |
196 self.assertEquals(system.RESULT_OK, res) | |
197 message_header = messaging.MessageHeader.Deserialize(data[0]) | |
198 self.assertNotEquals(message_header.request_id, 0) | |
199 response_header_data = messaging.MessageHeader( | |
200 0, | |
201 messaging.MESSAGE_IS_RESPONSE_FLAG, | |
202 message_header.request_id).Serialize() | |
203 self.handle.WriteMessage(response_header_data) | |
204 self.loop.RunUntilIdle() | |
205 self.assertFalse(self.received_errors) | |
206 self.assertEquals(len(back_messages), 1) | |
207 self.assertEquals(back_messages[0].data, response_header_data) | |
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