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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 1.5 by dl, Thu Sep 25 11:02:41 2003 UTC

#	Line 18 | Line 18 | public class AtomicReferenceArrayTest ex
18		return new TestSuite(AtomicReferenceArrayTest.class);
19		}
20
21	+	/**
22	+	* constructor creates array of given size with all elements null
23	+	*/
24		public void testConstructor(){
25		AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(SIZE);
26		for (int i = 0; i < SIZE; ++i) {
#	Line 25 | Line 28 | public class AtomicReferenceArrayTest ex
28		}
29		}
30
31	+	/**
32	+	* get and set for out of bound indices throw IndexOutOfBoundsException
33	+	*/
34	+	public void testIndexing(){
35	+	AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(SIZE);
36	+	try {
37	+	ai.get(SIZE);
38	+	} catch(IndexOutOfBoundsException success){
39	+	}
40	+	try {
41	+	ai.get(-1);
42	+	} catch(IndexOutOfBoundsException success){
43	+	}
44	+	try {
45	+	ai.set(SIZE, null);
46	+	} catch(IndexOutOfBoundsException success){
47	+	}
48	+	try {
49	+	ai.set(-1, null);
50	+	} catch(IndexOutOfBoundsException success){
51	+	}
52	+	}
53	+
54	+	/**
55	+	* get returns the last value set at index
56	+	*/
57		public void testGetSet(){
58		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
59		for (int i = 0; i < SIZE; ++i) {
#	Line 37 | Line 66 | public class AtomicReferenceArrayTest ex
66		}
67		}
68
69	+	/**
70	+	* compareAndSet succeeds in changing value if equal to expected else fails
71	+	*/
72		public void testCompareAndSet(){
73		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
74		for (int i = 0; i < SIZE; ++i) {
#	Line 51 | Line 83 | public class AtomicReferenceArrayTest ex
83		}
84		}
85
86	+	/**
87	+	* compareAndSet in one thread enables another waiting for value
88	+	* to succeed
89	+	*/
90	+	public void testCompareAndSetInMultipleThreads() {
91	+	final AtomicReferenceArray a = new AtomicReferenceArray(1);
92	+	a.set(0, one);
93	+	Thread t = new Thread(new Runnable() {
94	+	public void run() {
95	+	while(!a.compareAndSet(0, two, three)) Thread.yield();
96	+	}});
97	+	try {
98	+	t.start();
99	+	assertTrue(a.compareAndSet(0, one, two));
100	+	t.join(LONG_DELAY_MS);
101	+	assertFalse(t.isAlive());
102	+	assertEquals(a.get(0), three);
103	+	}
104	+	catch(Exception e) {
105	+	unexpectedException();
106	+	}
107	+	}
108	+
109	+	/**
110	+	* repeated weakCompareAndSet succeeds in changing value when equal
111	+	* to expected
112	+	*/
113		public void testWeakCompareAndSet(){
114		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
115		for (int i = 0; i < SIZE; ++i) {
#	Line 63 | Line 122 | public class AtomicReferenceArrayTest ex
122		}
123		}
124
125	+	/**
126	+	* getAndSet returns previous value and sets to given value at given index
127	+	*/
128		public void testGetAndSet(){
129		AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
130		for (int i = 0; i < SIZE; ++i) {
#	Line 73 | Line 135 | public class AtomicReferenceArrayTest ex
135		}
136		}
137
138	+	/**
139	+	* a deserialized serialized array holds same values
140	+	*/
141		public void testSerialization() {
142		AtomicReferenceArray l = new AtomicReferenceArray(SIZE);
143		for (int i = 0; i < SIZE; ++i) {
#	Line 93 | Line 158 | public class AtomicReferenceArrayTest ex
158		assertEquals(r.get(i), l.get(i));
159		}
160		} catch(Exception e){
161	<	e.printStackTrace();
97	<	fail("unexpected exception");
161	>	unexpectedException();
162		}
163		}
164

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