ViewVC Help

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

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

Comparing jsr166/src/test/tck/AtomicReferenceArrayTest.java (file contents):
Revision 1.6 by dl, Sat Dec 27 19:26:43 2003 UTC vs.
Revision 1.14 by jsr166, Tue Nov 17 02:50:57 2009 UTC

#	Line 2 | Line 2
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.
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.*;
12	+	import java.util.*;
13
14	<	public class AtomicReferenceArrayTest extends JSR166TestCase
14	<	{
14	>	public class AtomicReferenceArrayTest extends JSR166TestCase {
15		public static void main (String[] args) {
16		junit.textui.TestRunner.run (suite());
17		}
#	Line 22 | Line 22 | public class AtomicReferenceArrayTest ex
22		/**
23		* constructor creates array of given size with all elements null
24		*/
25	<	public void testConstructor(){
25	>	public void testConstructor() {
26		AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(SIZE);
27		for (int i = 0; i < SIZE; ++i) {
28		assertNull(ai.get(i));
#	Line 30 | Line 30 | public class AtomicReferenceArrayTest ex
30		}
31
32		/**
33	+	* constructor with null array throws NPE
34	+	*/
35	+	public void testConstructor2NPE() {
36	+	try {
37	+	Integer[] a = null;
38	+	AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(a);
39	+	shouldThrow();
40	+	} catch (NullPointerException success) {
41	+	}
42	+
43	+	/**
44	+	* constructor with array is of same size and has all elements
45	+	*/
46	+	public void testConstructor2() {
47	+	Integer[] a = { two, one, three, four, seven};
48	+	AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(a);
49	+	assertEquals(a.length, ai.length());
50	+	for (int i = 0; i < a.length; ++i)
51	+	assertEquals(a[i], ai.get(i));
52	+	}
53	+
54	+
55	+	/**
56		* get and set for out of bound indices throw IndexOutOfBoundsException
57		*/
58	<	public void testIndexing(){
58	>	public void testIndexing() {
59		AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(SIZE);
60		try {
61		ai.get(SIZE);
62	<	} catch(IndexOutOfBoundsException success){
62	>	shouldThrow();
63	>	} catch (IndexOutOfBoundsException success) {
64		}
65		try {
66		ai.get(-1);
67	<	} catch(IndexOutOfBoundsException success){
67	>	shouldThrow();
68	>	} catch (IndexOutOfBoundsException success) {
69		}
70		try {
71		ai.set(SIZE, null);
72	<	} catch(IndexOutOfBoundsException success){
72	>	shouldThrow();
73	>	} catch (IndexOutOfBoundsException success) {
74		}
75		try {
76		ai.set(-1, null);
77	<	} catch(IndexOutOfBoundsException success){
77	>	shouldThrow();
78	>	} catch (IndexOutOfBoundsException success) {
79		}
80		}
81
82		/**
83		* get returns the last value set at index
84		*/
85	<	public void testGetSet(){
86	<	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
85	>	public void testGetSet() {
86	>	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
87		for (int i = 0; i < SIZE; ++i) {
88		ai.set(i, one);
89		assertEquals(one,ai.get(i));
#	Line 68 | Line 95 | public class AtomicReferenceArrayTest ex
95		}
96
97		/**
98	+	* get returns the last value lazySet at index by same thread
99	+	*/
100	+	public void testGetLazySet() {
101	+	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
102	+	for (int i = 0; i < SIZE; ++i) {
103	+	ai.lazySet(i, one);
104	+	assertEquals(one,ai.get(i));
105	+	ai.lazySet(i, two);
106	+	assertEquals(two,ai.get(i));
107	+	ai.lazySet(i, m3);
108	+	assertEquals(m3,ai.get(i));
109	+	}
110	+	}
111	+
112	+	/**
113		* compareAndSet succeeds in changing value if equal to expected else fails
114		*/
115	<	public void testCompareAndSet(){
116	<	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
115	>	public void testCompareAndSet() {
116	>	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
117		for (int i = 0; i < SIZE; ++i) {
118		ai.set(i, one);
119		assertTrue(ai.compareAndSet(i, one,two));
#	Line 93 | Line 135 | public class AtomicReferenceArrayTest ex
135		a.set(0, one);
136		Thread t = new Thread(new Runnable() {
137		public void run() {
138	<	while(!a.compareAndSet(0, two, three)) Thread.yield();
138	>	while (!a.compareAndSet(0, two, three)) Thread.yield();
139		}});
140		try {
141		t.start();
#	Line 102 | Line 144 | public class AtomicReferenceArrayTest ex
144		assertFalse(t.isAlive());
145		assertEquals(a.get(0), three);
146		}
147	<	catch(Exception e) {
147	>	catch (Exception e) {
148		unexpectedException();
149		}
150		}
151
152		/**
153		* repeated weakCompareAndSet succeeds in changing value when equal
154	<	* to expected
154	>	* to expected
155		*/
156	<	public void testWeakCompareAndSet(){
157	<	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
156	>	public void testWeakCompareAndSet() {
157	>	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
158		for (int i = 0; i < SIZE; ++i) {
159		ai.set(i, one);
160	<	while(!ai.weakCompareAndSet(i, one,two));
161	<	while(!ai.weakCompareAndSet(i, two,m4));
160	>	while (!ai.weakCompareAndSet(i, one,two));
161	>	while (!ai.weakCompareAndSet(i, two,m4));
162		assertEquals(m4,ai.get(i));
163	<	while(!ai.weakCompareAndSet(i, m4,seven));
163	>	while (!ai.weakCompareAndSet(i, m4,seven));
164		assertEquals(seven,ai.get(i));
165		}
166		}
#	Line 126 | Line 168 | public class AtomicReferenceArrayTest ex
168		/**
169		* getAndSet returns previous value and sets to given value at given index
170		*/
171	<	public void testGetAndSet(){
172	<	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
171	>	public void testGetAndSet() {
172	>	AtomicReferenceArray ai = new AtomicReferenceArray(SIZE);
173		for (int i = 0; i < SIZE; ++i) {
174		ai.set(i, one);
175		assertEquals(one,ai.getAndSet(i,zero));
#	Line 140 | Line 182 | public class AtomicReferenceArrayTest ex
182		* a deserialized serialized array holds same values
183		*/
184		public void testSerialization() {
185	<	AtomicReferenceArray l = new AtomicReferenceArray(SIZE);
185	>	AtomicReferenceArray l = new AtomicReferenceArray(SIZE);
186		for (int i = 0; i < SIZE; ++i) {
187		l.set(i, new Integer(-i));
188		}
#	Line 158 | Line 200 | public class AtomicReferenceArrayTest ex
200		for (int i = 0; i < SIZE; ++i) {
201		assertEquals(r.get(i), l.get(i));
202		}
203	<	} catch(Exception e){
203	>	} catch (Exception e) {
204		unexpectedException();
205		}
206		}
207
208	+
209	+	/**
210	+	* toString returns current value.
211	+	*/
212	+	public void testToString() {
213	+	Integer[] a = { two, one, three, four, seven};
214	+	AtomicReferenceArray<Integer> ai = new AtomicReferenceArray<Integer>(a);
215	+	assertEquals(Arrays.toString(a), ai.toString());
216	+	}
217		}

Diff Legend

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