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
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.volley;
import com.android.volley.Request.Priority;
import com.android.volley.RequestQueue.RequestFinishedListener;
import com.android.volley.mock.MockRequest;
import com.android.volley.mock.ShadowSystemClock;
import com.android.volley.toolbox.NoCache;
import com.android.volley.utils.ImmediateResponseDelivery;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.Config;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import static org.mockito.MockitoAnnotations.initMocks;
/**
* Integration tests for {@link RequestQueue}, that verify its behavior in conjunction with real dispatcher, queues and
* Requests. Network is mocked out
*/
@RunWith(RobolectricTestRunner.class)
@Config(shadows = {ShadowSystemClock.class})
public class RequestQueueIntegrationTest {
private ResponseDelivery mDelivery;
@Mock private Network mMockNetwork;
@Before public void setUp() throws Exception {
mDelivery = new ImmediateResponseDelivery();
initMocks(this);
}
@Test public void add_requestProcessedInCorrectOrder() throws Exception {
// Enqueue 2 requests with different cache keys, and different priorities. The second, higher priority request
// takes 20ms.
// Assert that first request is only handled after the first one has been parsed and delivered.
MockRequest lowerPriorityReq = new MockRequest();
MockRequest higherPriorityReq = new MockRequest();
lowerPriorityReq.setCacheKey("1");
higherPriorityReq.setCacheKey("2");
lowerPriorityReq.setPriority(Priority.LOW);
higherPriorityReq.setPriority(Priority.HIGH);
RequestFinishedListener listener = mock(RequestFinishedListener.class);
Answer<NetworkResponse> delayAnswer = new Answer<NetworkResponse>() {
@Override
public NetworkResponse answer(InvocationOnMock invocationOnMock) throws Throwable {
Thread.sleep(20);
return mock(NetworkResponse.class);
}
};
//delay only for higher request
when(mMockNetwork.performRequest(higherPriorityReq)).thenAnswer(delayAnswer);
when(mMockNetwork.performRequest(lowerPriorityReq)).thenReturn(mock(NetworkResponse.class));
RequestQueue queue = new RequestQueue(new NoCache(), mMockNetwork, 1, mDelivery);
queue.addRequestFinishedListener(listener);
queue.add(lowerPriorityReq);
queue.add(higherPriorityReq);
queue.start();
// you cannot do strict order verification in combination with timeouts with mockito 1.9.5 :(
// as an alternative, first verify no requests have finished, while higherPriorityReq should be processing
verifyNoMoreInteractions(listener);
// verify higherPriorityReq goes through first
verify(listener, timeout(100)).onRequestFinished(higherPriorityReq);
// verify lowerPriorityReq goes last
verify(listener, timeout(10)).onRequestFinished(lowerPriorityReq);
queue.stop();
}
/**
* Asserts that requests with same cache key are processed in order.
*
* Needs to be an integration test because relies on complex interations between various queues
*/
@Test public void add_dedupeByCacheKey() throws Exception {
// Enqueue 2 requests with the same cache key. The first request takes 20ms. Assert that the
// second request is only handled after the first one has been parsed and delivered.
Request req1 = new MockRequest();
Request req2 = new MockRequest();
RequestFinishedListener listener = mock(RequestFinishedListener.class);
Answer<NetworkResponse> delayAnswer = new Answer<NetworkResponse>() {
@Override
public NetworkResponse answer(InvocationOnMock invocationOnMock) throws Throwable {
Thread.sleep(20);
return mock(NetworkResponse.class);
}
};
//delay only for first
when(mMockNetwork.performRequest(req1)).thenAnswer(delayAnswer);
when(mMockNetwork.performRequest(req2)).thenReturn(mock(NetworkResponse.class));
RequestQueue queue = new RequestQueue(new NoCache(), mMockNetwork, 3, mDelivery);
queue.addRequestFinishedListener(listener);
queue.add(req1);
queue.add(req2);
queue.start();
// you cannot do strict order verification with mockito 1.9.5 :(
// as an alternative, first verify no requests have finished, then verify req1 goes through
verifyNoMoreInteractions(listener);
verify(listener, timeout(100)).onRequestFinished(req1);
verify(listener, timeout(10)).onRequestFinished(req2);
queue.stop();
}
/**
* Verify RequestFinishedListeners are informed when requests are canceled
*
* Needs to be an integration test because relies on Request -> dispatcher -> RequestQueue interaction
*/
@Test public void add_requestFinishedListenerCanceled() throws Exception {
RequestFinishedListener listener = mock(RequestFinishedListener.class);
Request request = new MockRequest();
Answer<NetworkResponse> delayAnswer = new Answer<NetworkResponse>() {
@Override
public NetworkResponse answer(InvocationOnMock invocationOnMock) throws Throwable {
Thread.sleep(200);
return mock(NetworkResponse.class);
}
};
RequestQueue queue = new RequestQueue(new NoCache(), mMockNetwork, 1, mDelivery);
when(mMockNetwork.performRequest(request)).thenAnswer(delayAnswer);
queue.addRequestFinishedListener(listener);
queue.start();
queue.add(request);
request.cancel();
verify(listener, timeout(100)).onRequestFinished(request);
queue.stop();
}
/**
* Verify RequestFinishedListeners are informed when requests are successfully delivered
*
* Needs to be an integration test because relies on Request -> dispatcher -> RequestQueue interaction
*/
@Test public void add_requestFinishedListenerSuccess() throws Exception {
NetworkResponse response = mock(NetworkResponse.class);
Request request = new MockRequest();
RequestFinishedListener listener = mock(RequestFinishedListener.class);
RequestFinishedListener listener2 = mock(RequestFinishedListener.class);
RequestQueue queue = new RequestQueue(new NoCache(), mMockNetwork, 1, mDelivery);
queue.addRequestFinishedListener(listener);
queue.addRequestFinishedListener(listener2);
queue.start();
queue.add(request);
verify(listener, timeout(100)).onRequestFinished(request);
verify(listener2, timeout(100)).onRequestFinished(request);
queue.stop();
}
/**
* Verify RequestFinishedListeners are informed when request errors
*
* Needs to be an integration test because relies on Request -> dispatcher -> RequestQueue interaction
*/
@Test public void add_requestFinishedListenerError() throws Exception {
RequestFinishedListener listener = mock(RequestFinishedListener.class);
Request request = new MockRequest();
RequestQueue queue = new RequestQueue(new NoCache(), mMockNetwork, 1, mDelivery);
when(mMockNetwork.performRequest(request)).thenThrow(new VolleyError());
queue.addRequestFinishedListener(listener);
queue.start();
queue.add(request);
verify(listener, timeout(100)).onRequestFinished(request);
queue.stop();
}
}
|
