ViewVC Help

View File | Revision Log | Show Annotations | Download File | Root Listing

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

Comparing jsr166/src/test/tck/AtomicIntegerTest.java (file contents):
Revision 1.20 by jsr166, Wed Aug 25 00:07:03 2010 UTC vs.
Revision 1.33 by dl, Tue Jan 26 13:33:05 2021 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.AtomicInteger;
10	>
11	>	import junit.framework.Test;
12	>	import junit.framework.TestSuite;
13
14		public class AtomicIntegerTest extends JSR166TestCase {
15		public static void main(String[] args) {
16	<	junit.textui.TestRunner.run(suite());
16	>	main(suite(), args);
17		}
18		public static Test suite() {
19		return new TestSuite(AtomicIntegerTest.class);
#	Line 27 | Line 28 | public class AtomicIntegerTest extends J
28		*/
29		public void testConstructor() {
30		AtomicInteger ai = new AtomicInteger(1);
31	<	assertEquals(1,ai.get());
31	>	assertEquals(1, ai.get());
32		}
33
34		/**
#	Line 35 | Line 36 | public class AtomicIntegerTest extends J
36		*/
37		public void testConstructor2() {
38		AtomicInteger ai = new AtomicInteger();
39	<	assertEquals(0,ai.get());
39	>	assertEquals(0, ai.get());
40		}
41
42		/**
#	Line 43 | Line 44 | public class AtomicIntegerTest extends J
44		*/
45		public void testGetSet() {
46		AtomicInteger ai = new AtomicInteger(1);
47	<	assertEquals(1,ai.get());
47	>	assertEquals(1, ai.get());
48		ai.set(2);
49	<	assertEquals(2,ai.get());
49	>	assertEquals(2, ai.get());
50		ai.set(-3);
51	<	assertEquals(-3,ai.get());
51	>	assertEquals(-3, ai.get());
52		}
53
54		/**
#	Line 55 | Line 56 | public class AtomicIntegerTest extends J
56		*/
57		public void testGetLazySet() {
58		AtomicInteger ai = new AtomicInteger(1);
59	<	assertEquals(1,ai.get());
59	>	assertEquals(1, ai.get());
60		ai.lazySet(2);
61	<	assertEquals(2,ai.get());
61	>	assertEquals(2, ai.get());
62		ai.lazySet(-3);
63	<	assertEquals(-3,ai.get());
63	>	assertEquals(-3, ai.get());
64		}
65
66		/**
#	Line 67 | Line 68 | public class AtomicIntegerTest extends J
68		*/
69		public void testCompareAndSet() {
70		AtomicInteger ai = new AtomicInteger(1);
71	<	assertTrue(ai.compareAndSet(1,2));
72	<	assertTrue(ai.compareAndSet(2,-4));
73	<	assertEquals(-4,ai.get());
74	<	assertFalse(ai.compareAndSet(-5,7));
75	<	assertEquals(-4,ai.get());
76	<	assertTrue(ai.compareAndSet(-4,7));
77	<	assertEquals(7,ai.get());
71	>	assertTrue(ai.compareAndSet(1, 2));
72	>	assertTrue(ai.compareAndSet(2, -4));
73	>	assertEquals(-4, ai.get());
74	>	assertFalse(ai.compareAndSet(-5, 7));
75	>	assertEquals(-4, ai.get());
76	>	assertTrue(ai.compareAndSet(-4, 7));
77	>	assertEquals(7, ai.get());
78		}
79
80		/**
#	Line 92 | Line 93 | public class AtomicIntegerTest extends J
93		assertTrue(ai.compareAndSet(1, 2));
94		t.join(LONG_DELAY_MS);
95		assertFalse(t.isAlive());
96	<	assertEquals(ai.get(), 3);
96	>	assertEquals(3, ai.get());
97		}
98
99		/**
100		* repeated weakCompareAndSet succeeds in changing value when equal
101		* to expected
102		*/
103	+	@SuppressWarnings("deprecation")
104		public void testWeakCompareAndSet() {
105		AtomicInteger ai = new AtomicInteger(1);
106	<	while (!ai.weakCompareAndSet(1,2));
107	<	while (!ai.weakCompareAndSet(2,-4));
108	<	assertEquals(-4,ai.get());
109	<	while (!ai.weakCompareAndSet(-4,7));
110	<	assertEquals(7,ai.get());
106	>	do {} while (!ai.weakCompareAndSet(1, 2));
107	>	do {} while (!ai.weakCompareAndSet(2, -4));
108	>	assertEquals(-4, ai.get());
109	>	do {} while (!ai.weakCompareAndSet(-4, 7));
110	>	assertEquals(7, ai.get());
111		}
112
113		/**
#	Line 113 | Line 115 | public class AtomicIntegerTest extends J
115		*/
116		public void testGetAndSet() {
117		AtomicInteger ai = new AtomicInteger(1);
118	<	assertEquals(1,ai.getAndSet(0));
119	<	assertEquals(0,ai.getAndSet(-10));
120	<	assertEquals(-10,ai.getAndSet(1));
118	>	assertEquals(1, ai.getAndSet(0));
119	>	assertEquals(0, ai.getAndSet(-10));
120	>	assertEquals(-10, ai.getAndSet(1));
121		}
122
123		/**
#	Line 123 | Line 125 | public class AtomicIntegerTest extends J
125		*/
126		public void testGetAndAdd() {
127		AtomicInteger ai = new AtomicInteger(1);
128	<	assertEquals(1,ai.getAndAdd(2));
129	<	assertEquals(3,ai.get());
130	<	assertEquals(3,ai.getAndAdd(-4));
131	<	assertEquals(-1,ai.get());
128	>	assertEquals(1, ai.getAndAdd(2));
129	>	assertEquals(3, ai.get());
130	>	assertEquals(3, ai.getAndAdd(-4));
131	>	assertEquals(-1, ai.get());
132		}
133
134		/**
#	Line 134 | Line 136 | public class AtomicIntegerTest extends J
136		*/
137		public void testGetAndDecrement() {
138		AtomicInteger ai = new AtomicInteger(1);
139	<	assertEquals(1,ai.getAndDecrement());
140	<	assertEquals(0,ai.getAndDecrement());
141	<	assertEquals(-1,ai.getAndDecrement());
139	>	assertEquals(1, ai.getAndDecrement());
140	>	assertEquals(0, ai.getAndDecrement());
141	>	assertEquals(-1, ai.getAndDecrement());
142		}
143
144		/**
#	Line 144 | Line 146 | public class AtomicIntegerTest extends J
146		*/
147		public void testGetAndIncrement() {
148		AtomicInteger ai = new AtomicInteger(1);
149	<	assertEquals(1,ai.getAndIncrement());
150	<	assertEquals(2,ai.get());
149	>	assertEquals(1, ai.getAndIncrement());
150	>	assertEquals(2, ai.get());
151		ai.set(-2);
152	<	assertEquals(-2,ai.getAndIncrement());
153	<	assertEquals(-1,ai.getAndIncrement());
154	<	assertEquals(0,ai.getAndIncrement());
155	<	assertEquals(1,ai.get());
152	>	assertEquals(-2, ai.getAndIncrement());
153	>	assertEquals(-1, ai.getAndIncrement());
154	>	assertEquals(0, ai.getAndIncrement());
155	>	assertEquals(1, ai.get());
156		}
157
158		/**
#	Line 158 | Line 160 | public class AtomicIntegerTest extends J
160		*/
161		public void testAddAndGet() {
162		AtomicInteger ai = new AtomicInteger(1);
163	<	assertEquals(3,ai.addAndGet(2));
164	<	assertEquals(3,ai.get());
165	<	assertEquals(-1,ai.addAndGet(-4));
166	<	assertEquals(-1,ai.get());
163	>	assertEquals(3, ai.addAndGet(2));
164	>	assertEquals(3, ai.get());
165	>	assertEquals(-1, ai.addAndGet(-4));
166	>	assertEquals(-1, ai.get());
167		}
168
169		/**
#	Line 169 | Line 171 | public class AtomicIntegerTest extends J
171		*/
172		public void testDecrementAndGet() {
173		AtomicInteger ai = new AtomicInteger(1);
174	<	assertEquals(0,ai.decrementAndGet());
175	<	assertEquals(-1,ai.decrementAndGet());
176	<	assertEquals(-2,ai.decrementAndGet());
177	<	assertEquals(-2,ai.get());
174	>	assertEquals(0, ai.decrementAndGet());
175	>	assertEquals(-1, ai.decrementAndGet());
176	>	assertEquals(-2, ai.decrementAndGet());
177	>	assertEquals(-2, ai.get());
178		}
179
180		/**
#	Line 180 | Line 182 | public class AtomicIntegerTest extends J
182		*/
183		public void testIncrementAndGet() {
184		AtomicInteger ai = new AtomicInteger(1);
185	<	assertEquals(2,ai.incrementAndGet());
186	<	assertEquals(2,ai.get());
185	>	assertEquals(2, ai.incrementAndGet());
186	>	assertEquals(2, ai.get());
187		ai.set(-2);
188	<	assertEquals(-1,ai.incrementAndGet());
189	<	assertEquals(0,ai.incrementAndGet());
190	<	assertEquals(1,ai.incrementAndGet());
191	<	assertEquals(1,ai.get());
188	>	assertEquals(-1, ai.incrementAndGet());
189	>	assertEquals(0, ai.incrementAndGet());
190	>	assertEquals(1, ai.incrementAndGet());
191	>	assertEquals(1, ai.get());
192		}
193
194		/**
195	<	* a deserialized serialized atomic holds same value
195	>	* a deserialized/reserialized atomic holds same value
196		*/
197		public void testSerialization() throws Exception {
198	<	AtomicInteger l = new AtomicInteger();
199	<
200	<	l.set(22);
201	<	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
202	<	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
203	<	out.writeObject(l);
204	<	out.close();
205	<
204	<	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
205	<	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
206	<	AtomicInteger r = (AtomicInteger) in.readObject();
207	<	assertEquals(l.get(), r.get());
198	>	AtomicInteger x = new AtomicInteger();
199	>	AtomicInteger y = serialClone(x);
200	>	assertNotSame(x, y);
201	>	x.set(22);
202	>	AtomicInteger z = serialClone(x);
203	>	assertEquals(22, x.get());
204	>	assertEquals(0, y.get());
205	>	assertEquals(22, z.get());
206		}
207
208		/**
#	Line 215 | Line 213 | public class AtomicIntegerTest extends J
213		assertEquals("0", ai.toString());
214		for (int x : VALUES) {
215		ai.set(x);
216	<	assertEquals(ai.toString(), Integer.toString(x));
216	>	assertEquals(Integer.toString(x), ai.toString());
217		}
218		}
219

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines