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

Comparing jsr166/src/test/tck/AtomicReferenceArrayTest.java (file contents):
Revision 1.3 by dl, Sun Sep 14 20:42:40 2003 UTC vs.
Revision 1.6 by dl, Sat Dec 27 19:26:43 2003 UTC

#	Line 1 | Line 1
1		/*
2	<	* Written by members of JCP JSR-166 Expert Group and released to the
3	<	* public domain. Use, modify, and redistribute this code in any way
4	<	* without acknowledgement. Other contributors include Andrew Wright,
5	<	* Jeffrey Hayes, Pat Fischer, Mike Judd.
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
5	>	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	>	* Pat Fisher, Mike Judd.
7		*/
8
9		import junit.framework.*;
#	Line 18 | Line 19 | public class AtomicReferenceArrayTest ex
19		return new TestSuite(AtomicReferenceArrayTest.class);
20		}
21
22	+	/**
23	+	* constructor creates array of given size with all elements null
24	+	*/
25		public void testConstructor(){
26		AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(SIZE);
27		for (int i = 0; i < SIZE; ++i) {
#	Line 25 | Line 29 | public class AtomicReferenceArrayTest ex
29		}
30		}
31
32	+	/**
33	+	* get and set for out of bound indices throw IndexOutOfBoundsException
34	+	*/
35	+	public void testIndexing(){
36	+	AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(SIZE);
37	+	try {
38	+	ai.get(SIZE);
39	+	} catch(IndexOutOfBoundsException success){
40	+	}
41	+	try {
42	+	ai.get(-1);
43	+	} catch(IndexOutOfBoundsException success){
44	+	}
45	+	try {
46	+	ai.set(SIZE, null);
47	+	} catch(IndexOutOfBoundsException success){
48	+	}
49	+	try {
50	+	ai.set(-1, null);
51	+	} catch(IndexOutOfBoundsException success){
52	+	}
53	+	}
54	+
55	+	/**
56	+	* get returns the last value set at index
57	+	*/
58		public void testGetSet(){
59		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
60		for (int i = 0; i < SIZE; ++i) {
#	Line 37 | Line 67 | public class AtomicReferenceArrayTest ex
67		}
68		}
69
70	+	/**
71	+	* compareAndSet succeeds in changing value if equal to expected else fails
72	+	*/
73		public void testCompareAndSet(){
74		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
75		for (int i = 0; i < SIZE; ++i) {
#	Line 51 | Line 84 | public class AtomicReferenceArrayTest ex
84		}
85		}
86
87	+	/**
88	+	* compareAndSet in one thread enables another waiting for value
89	+	* to succeed
90	+	*/
91	+	public void testCompareAndSetInMultipleThreads() {
92	+	final AtomicReferenceArray a = new AtomicReferenceArray(1);
93	+	a.set(0, one);
94	+	Thread t = new Thread(new Runnable() {
95	+	public void run() {
96	+	while(!a.compareAndSet(0, two, three)) Thread.yield();
97	+	}});
98	+	try {
99	+	t.start();
100	+	assertTrue(a.compareAndSet(0, one, two));
101	+	t.join(LONG_DELAY_MS);
102	+	assertFalse(t.isAlive());
103	+	assertEquals(a.get(0), three);
104	+	}
105	+	catch(Exception e) {
106	+	unexpectedException();
107	+	}
108	+	}
109	+
110	+	/**
111	+	* repeated weakCompareAndSet succeeds in changing value when equal
112	+	* to expected
113	+	*/
114		public void testWeakCompareAndSet(){
115		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
116		for (int i = 0; i < SIZE; ++i) {
#	Line 63 | Line 123 | public class AtomicReferenceArrayTest ex
123		}
124		}
125
126	+	/**
127	+	* getAndSet returns previous value and sets to given value at given index
128	+	*/
129		public void testGetAndSet(){
130		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
131		for (int i = 0; i < SIZE; ++i) {
#	Line 73 | Line 136 | public class AtomicReferenceArrayTest ex
136		}
137		}
138
139	+	/**
140	+	* a deserialized serialized array holds same values
141	+	*/
142		public void testSerialization() {
143		AtomicReferenceArray l = new AtomicReferenceArray(SIZE);
144		for (int i = 0; i < SIZE; ++i) {
#	Line 93 | Line 159 | public class AtomicReferenceArrayTest ex
159		assertEquals(r.get(i), l.get(i));
160		}
161		} catch(Exception e){
162	<	e.printStackTrace();
97	<	fail("unexpected exception");
162	>	unexpectedException();
163		}
164		}
165

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