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1 package gov.nasa.jpf.jvm;
20
21
24 public class TestThread {
25 static String  didRunThread = null;
26
27 public static void main (String [] args) {
28 TestThread t = new TestThread();
29
30 if (args.length > 0) {
31 for (int i = 0; i < args.length; i++) {
33 String func = args[i];
34
35 if ("testMain".equals(func)) {
38 t.testMain();
39 } else if ("testName".equals(func)) {
40 t.testName();
41 } else if ("testPriority".equals(func)) {
42 t.testPriority();
43 } else if ("testDaemon".equals(func)) {
44 t.testDaemon();
45 } else if ("testSingleYield".equals(func)) {
46 t.testSingleYield();
47 } else if ("testYield".equals(func)) {
48 t.testYield();
49 } else {
50 throw new IllegalArgumentException ("unknown test function");
51 }
52 }
53 } else {
54 t.testMain();
56 t.testName();
57 t.testPriority();
58 t.testDaemon();
59 t.testSingleYield();
60 t.testYield();
61 }
62 }
63
64 public void testDaemon () {
65 Runnable r = new Runnable () {
68 public void run () {
69 Thread t = Thread.currentThread();
70
71 if (!t.isDaemon()) {
72 throw new RuntimeException ("isDaemon failed");
73 }
74
75 didRunThread = t.getName();
76 }
77 };
78
79 didRunThread = null;
80
81 Thread t = new Thread (r);
82 t.setDaemon(true);
83 t.start();
84
85 try {
86 t.join();
87 } catch (InterruptedException ix) {
88 throw new RuntimeException ("thread was interrupted");
89 }
90
91 String tname = Thread.currentThread().getName();
92 if ((didRunThread == null) || (didRunThread.equals(tname))) {
93 throw new RuntimeException ("thread did not execute: " + didRunThread);
94 }
95 }
96
97 public void testMain () {
98 Thread t = Thread.currentThread();
99 String refName = "main";
100
101 String name = t.getName();
102
103 if (!name.equals(refName)) {
104 throw new RuntimeException ("wrong main thread name, is: " + name +
105 ", expected: " + refName);
106 }
107
108 refName = "my-main-thread";
109 t.setName(refName);
110 name = t.getName();
111
112 if (!name.equals(refName)) {
113 throw new RuntimeException ("Thread.setName() failed, is: " + name +
114 ", expected: " + refName);
115 }
116
117 int refPrio = Thread.NORM_PRIORITY;
118 int prio = t.getPriority();
119
120 if (prio != refPrio) {
121 throw new RuntimeException ("main thread has no NORM_PRIORITY: " + prio);
122 }
123
124 refPrio++;
125 t.setPriority(refPrio);
126 prio = t.getPriority();
127
128 if (prio != refPrio) {
129 throw new RuntimeException ("main thread setPriority failed: " + prio);
130 }
131
132 if (t.isDaemon()) {
133 throw new RuntimeException ("main thread is daemon");
134 }
135 }
136
137 public void testName () {
138 Runnable r = new Runnable () {
139 public void run () {
140 Thread t = Thread.currentThread();
141 String name = t.getName();
142
143 if (!name.equals("my-thread")) {
144 throw new RuntimeException ("wrong Thread name: " + name);
145 }
146
147 didRunThread = name;
148 }
149 };
150
151 didRunThread = null;
152
153 Thread t = new Thread (r, "my-thread");
154
155
156 t.start();
158
159 try {
160 t.join();
161 } catch (InterruptedException ix) {
162 throw new RuntimeException ("thread was interrupted");
163 }
164
165 String tname = Thread.currentThread().getName();
166 if ((didRunThread==null) || (didRunThread.equals(tname))) {
167 throw new RuntimeException ("thread did not execute: " + didRunThread);
168 }
169 }
170
171 public void testSingleYield () {
172 Thread.yield();
173 }
174
175 public void testYield () {
176 Runnable r = new Runnable () {
177 public void run () {
178 Thread t = Thread.currentThread();
179
180 while (!didRunThread.equals("blah")) {
181 Thread.yield();
182 }
183
184 didRunThread = t.getName();
185 }
186 };
187
188 didRunThread = "blah";
189
190 Thread t = new Thread (r);
191 t.start();
192
193 while (didRunThread.equals("blah")) {
194 Thread.yield();
195 }
196
197 String tname = Thread.currentThread().getName();
198 if ((didRunThread == null) || (didRunThread.equals(tname))) {
199 throw new RuntimeException ("thread did not execute: " + didRunThread);
200 }
201 }
202
203 public void testPriority () {
204 Runnable r = new Runnable () {
205 public void run () {
206 Thread t = Thread.currentThread();
207 int prio = t.getPriority();
208
209 if (prio != (Thread.MIN_PRIORITY + 2)) {
210 throw new RuntimeException ("wrong Thread priority: " + prio);
211 }
212
213 didRunThread = t.getName();
214 }
215 };
216
217 didRunThread = null;
218
219 Thread t = new Thread (r);
220 t.setPriority(Thread.MIN_PRIORITY + 2);
221 t.start();
222
223 try {
224 t.join();
225 } catch (InterruptedException ix) {
226 throw new RuntimeException ("thread was interrupted");
227 }
228
229 String tname = Thread.currentThread().getName();
230 if ((didRunThread == null) || (didRunThread.equals(tname))) {
231 throw new RuntimeException ("thread did not execute: " + didRunThread);
232 }
233 }
234 }
235 |
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