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
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.documentapi.messagebus;
import com.yahoo.concurrent.ManualTimer;
import org.junit.Test;
import java.util.concurrent.RejectedExecutionException;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
public class ScheduledEventQueueTestCase {
static class TestTask implements Runnable {
public long timestamp = 0;
public void run() {
}
}
@Test
public void testPushTask() {
ScheduledEventQueue queue = new ScheduledEventQueue();
TestTask task = new TestTask();
queue.pushTask(task);
assertEquals(task, queue.popTask());
}
@Test
public void testPushTwoTasks() {
ScheduledEventQueue queue = new ScheduledEventQueue();
TestTask task1 = new TestTask();
TestTask task2 = new TestTask();
queue.pushTask(task1);
queue.pushTask(task2);
assertEquals(task1, queue.popTask());
assertEquals(task2, queue.popTask());
}
@Test
public void testNullWhenPoppingNonexistantTask() {
ScheduledEventQueue queue = new ScheduledEventQueue();
assertNull(queue.popTask());
}
@Test
public void testPushTaskWithTime() {
ManualTimer timer = new ManualTimer();
ScheduledEventQueue queue = new ScheduledEventQueue(timer);
TestTask task = new TestTask();
queue.pushTask(task, 1000);
assertNull(queue.popTask());
timer.set(1000);
assertEquals(task, queue.popTask());
}
@Test
public void testTwoTasksWithSameTime() {
ManualTimer timer = new ManualTimer();
ScheduledEventQueue queue = new ScheduledEventQueue(timer);
TestTask task1 = new TestTask();
queue.pushTask(task1, 1000);
TestTask task2 = new TestTask();
queue.pushTask(task2, 1000);
assertNull(queue.popTask());
timer.set(1000);
assertEquals(task1, queue.popTask());
assertEquals(task2, queue.popTask());
}
@Test
public void testThreeTasksWithDifferentTime() {
ManualTimer timer = new ManualTimer();
ScheduledEventQueue queue = new ScheduledEventQueue(timer);
TestTask task1 = new TestTask();
queue.pushTask(task1, 1000);
TestTask task2 = new TestTask();
queue.pushTask(task2, 500);
TestTask task3 = new TestTask();
queue.pushTask(task3);
assertEquals(task3, queue.popTask());
assertNull(queue.popTask());
timer.set(1000);
assertEquals(task2, queue.popTask());
assertEquals(task1, queue.popTask());
}
static class ClockSetterThread implements Runnable {
ScheduledEventQueue queue;
ManualTimer timer;
long newTime;
public ClockSetterThread(ScheduledEventQueue queue, ManualTimer timer, long newTime) {
this.queue = queue;
this.timer = timer;
this.newTime = newTime;
}
public void run() {
try {
while (!queue.isWaiting()) {
Thread.sleep(1);
}
} catch (InterruptedException e) {
}
timer.set(newTime);
queue.wakeTasks();
}
}
@Test
public void testPushAndWaitForTask() {
ManualTimer timer = new ManualTimer();
ScheduledEventQueue queue = new ScheduledEventQueue(timer);
TestTask task = new TestTask();
queue.pushTask(task, 50);
assertNull(queue.popTask());
new Thread(new ClockSetterThread(queue, timer, 50)).start();
assertEquals(task, queue.getNextTask());
assertEquals(50, timer.milliTime());
}
static class TaskPusherThread implements Runnable {
ScheduledEventQueue queue;
TestTask task;
public TaskPusherThread(ScheduledEventQueue queue, TestTask task) {
this.queue = queue;
this.task = task;
}
public void run() {
try {
while (!queue.isWaiting()) {
Thread.sleep(1);
}
} catch (InterruptedException e) {
}
queue.pushTask(task);
}
}
@Test
public void testPushAndWaitSingle() {
ScheduledEventQueue queue = new ScheduledEventQueue();
TestTask task = new TestTask();
new Thread(new TaskPusherThread(queue, task)).start();
assertNull(queue.popTask());
assertEquals(task, queue.getNextTask());
}
@Test
public void testPushAndWaitMultiple() {
ManualTimer timer = new ManualTimer();
ScheduledEventQueue queue = new ScheduledEventQueue(timer);
TestTask lastTask = new TestTask();
queue.pushTask(lastTask, 250);
TestTask task = new TestTask();
new Thread(new TaskPusherThread(queue, task)).start();
assertNull(queue.popTask());
assertEquals(task, queue.getNextTask());
new Thread(new ClockSetterThread(queue, timer, 250)).start();
assertEquals(lastTask, queue.getNextTask());
assertEquals(250, timer.milliTime());
}
@Test
public void testPushTaskRejectedAfterShutdown() {
ScheduledEventQueue queue = new ScheduledEventQueue();
TestTask task = new TestTask();
queue.shutdown();
assertTrue(queue.isShutdown());
try {
queue.pushTask(task);
fail();
} catch (RejectedExecutionException e) {
}
}
static class ShutdownThread implements Runnable {
ScheduledEventQueue queue;
ManualTimer timer;
public ShutdownThread(ScheduledEventQueue queue, ManualTimer timer) {
this.queue = queue;
this.timer = timer;
}
public void run() {
try {
while (!queue.isWaiting()) {
Thread.sleep(1);
}
} catch (InterruptedException e) {
}
queue.shutdown();
timer.set(100);
queue.wakeTasks();
}
}
@Test
public void testShutdownInGetNext() {
ManualTimer timer = new ManualTimer();
ScheduledEventQueue queue = new ScheduledEventQueue(timer);
TestTask task = new TestTask();
queue.pushTask(task, 100);
new Thread(new ShutdownThread(queue, timer)).start();
assertEquals(task, queue.getNextTask());
assertEquals(100, timer.milliTime());
}
}
|
