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root/jsr166/jsr166/src/test/tck/AtomicLongTest.java

Comparing jsr166/src/test/tck/AtomicLongTest.java (file contents):
Revision 1.18 by jsr166, Tue Dec 1 09:56:28 2009 UTC vs.
Revision 1.30 by dl, Thu Jun 16 23:35:25 2016 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	<	import junit.framework.*;
10	<	import java.util.concurrent.atomic.*;
11	<	import java.io.*;
9	>	import java.util.concurrent.atomic.AtomicLong;
10	>
11	>	import junit.framework.Test;
12	>	import junit.framework.TestSuite;
13
14		public class AtomicLongTest extends JSR166TestCase {
15	<	public static void main (String[] args) {
16	<	junit.textui.TestRunner.run (suite());
15	>	public static void main(String[] args) {
16	>	main(suite(), args);
17		}
18		public static Test suite() {
19		return new TestSuite(AtomicLongTest.class);
#	Line 29 | Line 30 | public class AtomicLongTest extends JSR1
30		*/
31		public void testConstructor() {
32		AtomicLong ai = new AtomicLong(1);
33	<	assertEquals(1,ai.get());
33	>	assertEquals(1, ai.get());
34		}
35
36		/**
#	Line 37 | Line 38 | public class AtomicLongTest extends JSR1
38		*/
39		public void testConstructor2() {
40		AtomicLong ai = new AtomicLong();
41	<	assertEquals(0,ai.get());
41	>	assertEquals(0, ai.get());
42		}
43
44		/**
#	Line 45 | Line 46 | public class AtomicLongTest extends JSR1
46		*/
47		public void testGetSet() {
48		AtomicLong ai = new AtomicLong(1);
49	<	assertEquals(1,ai.get());
49	>	assertEquals(1, ai.get());
50		ai.set(2);
51	<	assertEquals(2,ai.get());
51	>	assertEquals(2, ai.get());
52		ai.set(-3);
53	<	assertEquals(-3,ai.get());
53	>	assertEquals(-3, ai.get());
54		}
55
56		/**
#	Line 57 | Line 58 | public class AtomicLongTest extends JSR1
58		*/
59		public void testGetLazySet() {
60		AtomicLong ai = new AtomicLong(1);
61	<	assertEquals(1,ai.get());
61	>	assertEquals(1, ai.get());
62		ai.lazySet(2);
63	<	assertEquals(2,ai.get());
63	>	assertEquals(2, ai.get());
64		ai.lazySet(-3);
65	<	assertEquals(-3,ai.get());
65	>	assertEquals(-3, ai.get());
66		}
67
68		/**
#	Line 69 | Line 70 | public class AtomicLongTest extends JSR1
70		*/
71		public void testCompareAndSet() {
72		AtomicLong ai = new AtomicLong(1);
73	<	assertTrue(ai.compareAndSet(1,2));
74	<	assertTrue(ai.compareAndSet(2,-4));
75	<	assertEquals(-4,ai.get());
76	<	assertFalse(ai.compareAndSet(-5,7));
77	<	assertEquals(-4,ai.get());
78	<	assertTrue(ai.compareAndSet(-4,7));
79	<	assertEquals(7,ai.get());
73	>	assertTrue(ai.compareAndSet(1, 2));
74	>	assertTrue(ai.compareAndSet(2, -4));
75	>	assertEquals(-4, ai.get());
76	>	assertFalse(ai.compareAndSet(-5, 7));
77	>	assertEquals(-4, ai.get());
78	>	assertTrue(ai.compareAndSet(-4, 7));
79	>	assertEquals(7, ai.get());
80		}
81
82		/**
#	Line 94 | Line 95 | public class AtomicLongTest extends JSR1
95		assertTrue(ai.compareAndSet(1, 2));
96		t.join(LONG_DELAY_MS);
97		assertFalse(t.isAlive());
98	<	assertEquals(ai.get(), 3);
98	>	assertEquals(3, ai.get());
99		}
100
101		/**
#	Line 103 | Line 104 | public class AtomicLongTest extends JSR1
104		*/
105		public void testWeakCompareAndSet() {
106		AtomicLong ai = new AtomicLong(1);
107	<	while (!ai.weakCompareAndSet(1,2));
108	<	while (!ai.weakCompareAndSet(2,-4));
109	<	assertEquals(-4,ai.get());
110	<	while (!ai.weakCompareAndSet(-4,7));
111	<	assertEquals(7,ai.get());
107	>	do {} while (!ai.weakCompareAndSet(1, 2));
108	>	do {} while (!ai.weakCompareAndSet(2, -4));
109	>	assertEquals(-4, ai.get());
110	>	do {} while (!ai.weakCompareAndSet(-4, 7));
111	>	assertEquals(7, ai.get());
112		}
113
114		/**
#	Line 115 | Line 116 | public class AtomicLongTest extends JSR1
116		*/
117		public void testGetAndSet() {
118		AtomicLong ai = new AtomicLong(1);
119	<	assertEquals(1,ai.getAndSet(0));
120	<	assertEquals(0,ai.getAndSet(-10));
121	<	assertEquals(-10,ai.getAndSet(1));
119	>	assertEquals(1, ai.getAndSet(0));
120	>	assertEquals(0, ai.getAndSet(-10));
121	>	assertEquals(-10, ai.getAndSet(1));
122		}
123
124		/**
#	Line 125 | Line 126 | public class AtomicLongTest extends JSR1
126		*/
127		public void testGetAndAdd() {
128		AtomicLong ai = new AtomicLong(1);
129	<	assertEquals(1,ai.getAndAdd(2));
130	<	assertEquals(3,ai.get());
131	<	assertEquals(3,ai.getAndAdd(-4));
132	<	assertEquals(-1,ai.get());
129	>	assertEquals(1, ai.getAndAdd(2));
130	>	assertEquals(3, ai.get());
131	>	assertEquals(3, ai.getAndAdd(-4));
132	>	assertEquals(-1, ai.get());
133		}
134
135		/**
#	Line 136 | Line 137 | public class AtomicLongTest extends JSR1
137		*/
138		public void testGetAndDecrement() {
139		AtomicLong ai = new AtomicLong(1);
140	<	assertEquals(1,ai.getAndDecrement());
141	<	assertEquals(0,ai.getAndDecrement());
142	<	assertEquals(-1,ai.getAndDecrement());
140	>	assertEquals(1, ai.getAndDecrement());
141	>	assertEquals(0, ai.getAndDecrement());
142	>	assertEquals(-1, ai.getAndDecrement());
143		}
144
145		/**
#	Line 146 | Line 147 | public class AtomicLongTest extends JSR1
147		*/
148		public void testGetAndIncrement() {
149		AtomicLong ai = new AtomicLong(1);
150	<	assertEquals(1,ai.getAndIncrement());
151	<	assertEquals(2,ai.get());
150	>	assertEquals(1, ai.getAndIncrement());
151	>	assertEquals(2, ai.get());
152		ai.set(-2);
153	<	assertEquals(-2,ai.getAndIncrement());
154	<	assertEquals(-1,ai.getAndIncrement());
155	<	assertEquals(0,ai.getAndIncrement());
156	<	assertEquals(1,ai.get());
153	>	assertEquals(-2, ai.getAndIncrement());
154	>	assertEquals(-1, ai.getAndIncrement());
155	>	assertEquals(0, ai.getAndIncrement());
156	>	assertEquals(1, ai.get());
157		}
158
159		/**
#	Line 160 | Line 161 | public class AtomicLongTest extends JSR1
161		*/
162		public void testAddAndGet() {
163		AtomicLong ai = new AtomicLong(1);
164	<	assertEquals(3,ai.addAndGet(2));
165	<	assertEquals(3,ai.get());
166	<	assertEquals(-1,ai.addAndGet(-4));
167	<	assertEquals(-1,ai.get());
164	>	assertEquals(3, ai.addAndGet(2));
165	>	assertEquals(3, ai.get());
166	>	assertEquals(-1, ai.addAndGet(-4));
167	>	assertEquals(-1, ai.get());
168		}
169
170		/**
#	Line 171 | Line 172 | public class AtomicLongTest extends JSR1
172		*/
173		public void testDecrementAndGet() {
174		AtomicLong ai = new AtomicLong(1);
175	<	assertEquals(0,ai.decrementAndGet());
176	<	assertEquals(-1,ai.decrementAndGet());
177	<	assertEquals(-2,ai.decrementAndGet());
178	<	assertEquals(-2,ai.get());
175	>	assertEquals(0, ai.decrementAndGet());
176	>	assertEquals(-1, ai.decrementAndGet());
177	>	assertEquals(-2, ai.decrementAndGet());
178	>	assertEquals(-2, ai.get());
179		}
180
181		/**
#	Line 182 | Line 183 | public class AtomicLongTest extends JSR1
183		*/
184		public void testIncrementAndGet() {
185		AtomicLong ai = new AtomicLong(1);
186	<	assertEquals(2,ai.incrementAndGet());
187	<	assertEquals(2,ai.get());
186	>	assertEquals(2, ai.incrementAndGet());
187	>	assertEquals(2, ai.get());
188		ai.set(-2);
189	<	assertEquals(-1,ai.incrementAndGet());
190	<	assertEquals(0,ai.incrementAndGet());
191	<	assertEquals(1,ai.incrementAndGet());
192	<	assertEquals(1,ai.get());
189	>	assertEquals(-1, ai.incrementAndGet());
190	>	assertEquals(0, ai.incrementAndGet());
191	>	assertEquals(1, ai.incrementAndGet());
192	>	assertEquals(1, ai.get());
193		}
194
195		/**
196		* a deserialized serialized atomic holds same value
197		*/
198		public void testSerialization() throws Exception {
199	<	AtomicLong l = new AtomicLong();
200	<
201	<	l.set(-22);
202	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
203	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
204	<	out.writeObject(l);
205	<	out.close();
206	<
207	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
207	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
208	<	AtomicLong r = (AtomicLong) in.readObject();
209	<	assertEquals(l.get(), r.get());
199	>	AtomicLong x = new AtomicLong();
200	>	AtomicLong y = serialClone(x);
201	>	assertNotSame(x, y);
202	>	x.set(-22);
203	>	AtomicLong z = serialClone(x);
204	>	assertNotSame(y, z);
205	>	assertEquals(-22, x.get());
206	>	assertEquals(0, y.get());
207	>	assertEquals(-22, z.get());
208		}
209
210		/**
#	Line 215 | Line 213 | public class AtomicLongTest extends JSR1
213		public void testToString() {
214		AtomicLong ai = new AtomicLong();
215		assertEquals("0", ai.toString());
216	<	for (long i : VALUES) {
217	<	ai.set(i);
218	<	assertEquals(ai.toString(), Long.toString(i));
216	>	for (long x : VALUES) {
217	>	ai.set(x);
218	>	assertEquals(Long.toString(x), ai.toString());
219		}
220		}
221
#	Line 241 | Line 239 | public class AtomicLongTest extends JSR1
239		assertEquals(0L, ai.longValue());
240		for (long x : VALUES) {
241		ai.set(x);
242	<	assertEquals((long)x, ai.longValue());
242	>	assertEquals(x, ai.longValue());
243		}
244		}
245
#	Line 269 | Line 267 | public class AtomicLongTest extends JSR1
267		}
268		}
269
270	+	// jdk9
271	+
272	+	/**
273	+	* getPlain returns the last value set
274	+	*/
275	+	public void testGetPlainSet() {
276	+	AtomicLong ai = new AtomicLong(1);
277	+	assertEquals(1, ai.getPlain());
278	+	ai.set(2);
279	+	assertEquals(2, ai.getPlain());
280	+	ai.set(-3);
281	+	assertEquals(-3, ai.getPlain());
282	+	}
283	+
284	+	/**
285	+	* getOpaque returns the last value set
286	+	*/
287	+	public void testGetOpaqueSet() {
288	+	AtomicLong ai = new AtomicLong(1);
289	+	assertEquals(1, ai.getOpaque());
290	+	ai.set(2);
291	+	assertEquals(2, ai.getOpaque());
292	+	ai.set(-3);
293	+	assertEquals(-3, ai.getOpaque());
294	+	}
295	+
296	+	/**
297	+	* getAcquire returns the last value set
298	+	*/
299	+	public void testGetAcquireSet() {
300	+	AtomicLong ai = new AtomicLong(1);
301	+	assertEquals(1, ai.getAcquire());
302	+	ai.set(2);
303	+	assertEquals(2, ai.getAcquire());
304	+	ai.set(-3);
305	+	assertEquals(-3, ai.getAcquire());
306	+	}
307	+
308	+	/**
309	+	* get returns the last value setPlain
310	+	*/
311	+	public void testGetSetPlain() {
312	+	AtomicLong ai = new AtomicLong(1);
313	+	assertEquals(1, ai.get());
314	+	ai.setPlain(2);
315	+	assertEquals(2, ai.get());
316	+	ai.setPlain(-3);
317	+	assertEquals(-3, ai.get());
318	+	}
319	+
320	+	/**
321	+	* get returns the last value setOpaque
322	+	*/
323	+	public void testGetSetOpaque() {
324	+	AtomicLong ai = new AtomicLong(1);
325	+	assertEquals(1, ai.get());
326	+	ai.setOpaque(2);
327	+	assertEquals(2, ai.get());
328	+	ai.setOpaque(-3);
329	+	assertEquals(-3, ai.get());
330	+	}
331	+
332	+	/**
333	+	* get returns the last value setRelease
334	+	*/
335	+	public void testGetSetRelease() {
336	+	AtomicLong ai = new AtomicLong(1);
337	+	assertEquals(1, ai.get());
338	+	ai.setRelease(2);
339	+	assertEquals(2, ai.get());
340	+	ai.setRelease(-3);
341	+	assertEquals(-3, ai.get());
342	+	}
343	+
344	+	/**
345	+	* compareAndExchange succeeds in changing value if equal to
346	+	* expected else fails
347	+	*/
348	+	public void testCompareAndExchange() {
349	+	AtomicLong ai = new AtomicLong(1);
350	+	assertEquals(1, ai.compareAndExchange(1, 2));
351	+	assertEquals(2, ai.compareAndExchange(2, -4));
352	+	assertEquals(-4, ai.get());
353	+	assertEquals(-4, ai.compareAndExchange(-5, 7));
354	+	assertEquals(-4, ai.get());
355	+	assertEquals(-4, ai.compareAndExchange(-4, 7));
356	+	assertEquals(7, ai.get());
357	+	}
358	+
359	+	/**
360	+	* compareAndExchangeAcquire succeeds in changing value if equal to
361	+	* expected else fails
362	+	*/
363	+	public void testCompareAndExchangeAcquire() {
364	+	AtomicLong ai = new AtomicLong(1);
365	+	assertEquals(1, ai.compareAndExchangeAcquire(1, 2));
366	+	assertEquals(2, ai.compareAndExchangeAcquire(2, -4));
367	+	assertEquals(-4, ai.get());
368	+	assertEquals(-4, ai.compareAndExchangeAcquire(-5, 7));
369	+	assertEquals(-4, ai.get());
370	+	assertEquals(-4, ai.compareAndExchangeAcquire(-4, 7));
371	+	assertEquals(7, ai.get());
372	+	}
373	+
374	+	/**
375	+	* compareAndExchangeRelease succeeds in changing value if equal to
376	+	* expected else fails
377	+	*/
378	+	public void testCompareAndExchangeRelease() {
379	+	AtomicLong ai = new AtomicLong(1);
380	+	assertEquals(1, ai.compareAndExchangeRelease(1, 2));
381	+	assertEquals(2, ai.compareAndExchangeRelease(2, -4));
382	+	assertEquals(-4, ai.get());
383	+	assertEquals(-4, ai.compareAndExchangeRelease(-5, 7));
384	+	assertEquals(-4, ai.get());
385	+	assertEquals(-4, ai.compareAndExchangeRelease(-4, 7));
386	+	assertEquals(7, ai.get());
387	+	}
388	+
389	+	/**
390	+	* repeated weakCompareAndSetVolatile succeeds in changing value when equal
391	+	* to expected
392	+	*/
393	+	public void testWeakCompareAndSetVolatile() {
394	+	AtomicLong ai = new AtomicLong(1);
395	+	do {} while (!ai.weakCompareAndSetVolatile(1, 2));
396	+	do {} while (!ai.weakCompareAndSetVolatile(2, -4));
397	+	assertEquals(-4, ai.get());
398	+	do {} while (!ai.weakCompareAndSetVolatile(-4, 7));
399	+	assertEquals(7, ai.get());
400	+	}
401	+
402	+	/**
403	+	* repeated weakCompareAndSetAcquire succeeds in changing value when equal
404	+	* to expected
405	+	*/
406	+	public void testWeakCompareAndSetAcquire() {
407	+	AtomicLong ai = new AtomicLong(1);
408	+	do {} while (!ai.weakCompareAndSetAcquire(1, 2));
409	+	do {} while (!ai.weakCompareAndSetAcquire(2, -4));
410	+	assertEquals(-4, ai.get());
411	+	do {} while (!ai.weakCompareAndSetAcquire(-4, 7));
412	+	assertEquals(7, ai.get());
413	+	}
414	+
415	+	/**
416	+	* repeated weakCompareAndSetRelease succeeds in changing value when equal
417	+	* to expected
418	+	*/
419	+	public void testWeakCompareAndSetRelease() {
420	+	AtomicLong ai = new AtomicLong(1);
421	+	do {} while (!ai.weakCompareAndSetRelease(1, 2));
422	+	do {} while (!ai.weakCompareAndSetRelease(2, -4));
423	+	assertEquals(-4, ai.get());
424	+	do {} while (!ai.weakCompareAndSetRelease(-4, 7));
425	+	assertEquals(7, ai.get());
426	+	}
427	+
428		}

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