test/tck/AtomicIntegerArrayTest.java

/*
 * Written by Doug Lea with assistance from members of JCP JSR-166
 * Expert Group and released to the public domain, as explained at
 * http://creativecommons.org/licenses/publicdomain
 * Other contributors include Andrew Wright, Jeffrey Hayes,
 * Pat Fisher, Mike Judd.
 */

import junit.framework.*;
import java.util.concurrent.atomic.*;
import java.io.*;
import java.util.*;

public class AtomicIntegerArrayTest extends JSR166TestCase {

    public static void main(String[] args) {
        junit.textui.TestRunner.run(suite());
    }
    public static Test suite() {
        return new TestSuite(AtomicIntegerArrayTest.class);
    }


    /**
     * constructor creates array of given size with all elements zero
     */
    public void testConstructor() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i)
            assertEquals(0,ai.get(i));
    }

    /**
     * constructor with null array throws NPE
     */
    public void testConstructor2NPE() {
        try {
            int[] a = null;
            AtomicIntegerArray ai = new AtomicIntegerArray(a);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * constructor with array is of same size and has all elements
     */
    public void testConstructor2() {
        int[] a = { 17, 3, -42, 99, -7};
        AtomicIntegerArray ai = new AtomicIntegerArray(a);
        assertEquals(a.length, ai.length());
        for (int i = 0; i < a.length; ++i)
            assertEquals(a[i], ai.get(i));
    }

    /**
     * get and set for out of bound indices throw IndexOutOfBoundsException
     */
    public void testIndexing() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        try {
            ai.get(SIZE);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {
        }
        try {
            ai.get(-1);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {
        }
        try {
            ai.set(SIZE, 0);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {
        }
        try {
            ai.set(-1, 0);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {
        }
    }

    /**
     * get returns the last value set at index
     */
    public void testGetSet() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertEquals(1,ai.get(i));
            ai.set(i, 2);
            assertEquals(2,ai.get(i));
            ai.set(i, -3);
            assertEquals(-3,ai.get(i));
        }
    }

    /**
     * get returns the last value lazySet at index by same thread
     */
    public void testGetLazySet() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.lazySet(i, 1);
            assertEquals(1,ai.get(i));
            ai.lazySet(i, 2);
            assertEquals(2,ai.get(i));
            ai.lazySet(i, -3);
            assertEquals(-3,ai.get(i));
        }
    }

    /**
     * compareAndSet succeeds in changing value if equal to expected else fails
     */
    public void testCompareAndSet() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertTrue(ai.compareAndSet(i, 1,2));
            assertTrue(ai.compareAndSet(i, 2,-4));
            assertEquals(-4,ai.get(i));
            assertFalse(ai.compareAndSet(i, -5,7));
            assertEquals(-4,ai.get(i));
            assertTrue(ai.compareAndSet(i, -4,7));
            assertEquals(7,ai.get(i));
        }
    }

    /**
     * compareAndSet in one thread enables another waiting for value
     * to succeed
     */
    public void testCompareAndSetInMultipleThreads() throws Exception {
        final AtomicIntegerArray a = new AtomicIntegerArray(1);
        a.set(0, 1);
        Thread t = new Thread(new CheckedRunnable() {
            public void realRun() {
                while (!a.compareAndSet(0, 2, 3))
                    Thread.yield();
            }});

        t.start();
        assertTrue(a.compareAndSet(0, 1, 2));
        t.join(LONG_DELAY_MS);
        assertFalse(t.isAlive());
        assertEquals(a.get(0), 3);
    }

    /**
     * repeated weakCompareAndSet succeeds in changing value when equal
     * to expected
     */
    public void testWeakCompareAndSet() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            while (!ai.weakCompareAndSet(i, 1,2));
            while (!ai.weakCompareAndSet(i, 2,-4));
            assertEquals(-4,ai.get(i));
            while (!ai.weakCompareAndSet(i, -4,7));
            assertEquals(7,ai.get(i));
        }
    }

    /**
     *  getAndSet returns previous value and sets to given value at given index
     */
    public void testGetAndSet() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertEquals(1,ai.getAndSet(i,0));
            assertEquals(0,ai.getAndSet(i,-10));
            assertEquals(-10,ai.getAndSet(i,1));
        }
    }

    /**
     *  getAndAdd returns previous value and adds given value
     */
    public void testGetAndAdd() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertEquals(1,ai.getAndAdd(i,2));
            assertEquals(3,ai.get(i));
            assertEquals(3,ai.getAndAdd(i,-4));
            assertEquals(-1,ai.get(i));
        }
    }

    /**
     * getAndDecrement returns previous value and decrements
     */
    public void testGetAndDecrement() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertEquals(1,ai.getAndDecrement(i));
            assertEquals(0,ai.getAndDecrement(i));
            assertEquals(-1,ai.getAndDecrement(i));
        }
    }

    /**
     * getAndIncrement returns previous value and increments
     */
    public void testGetAndIncrement() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertEquals(1,ai.getAndIncrement(i));
            assertEquals(2,ai.get(i));
            ai.set(i,-2);
            assertEquals(-2,ai.getAndIncrement(i));
            assertEquals(-1,ai.getAndIncrement(i));
            assertEquals(0,ai.getAndIncrement(i));
            assertEquals(1,ai.get(i));
        }
    }

    /**
     *  addAndGet adds given value to current, and returns current value
     */
    public void testAddAndGet() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertEquals(3,ai.addAndGet(i,2));
            assertEquals(3,ai.get(i));
            assertEquals(-1,ai.addAndGet(i,-4));
            assertEquals(-1,ai.get(i));
        }
    }

    /**
     * decrementAndGet decrements and returns current value
     */
    public void testDecrementAndGet() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertEquals(0,ai.decrementAndGet(i));
            assertEquals(-1,ai.decrementAndGet(i));
            assertEquals(-2,ai.decrementAndGet(i));
            assertEquals(-2,ai.get(i));
        }
    }

    /**
     *  incrementAndGet increments and returns current value
     */
    public void testIncrementAndGet() {
        AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i) {
            ai.set(i, 1);
            assertEquals(2,ai.incrementAndGet(i));
            assertEquals(2,ai.get(i));
            ai.set(i, -2);
            assertEquals(-1,ai.incrementAndGet(i));
            assertEquals(0,ai.incrementAndGet(i));
            assertEquals(1,ai.incrementAndGet(i));
            assertEquals(1,ai.get(i));
        }
    }

    static final int COUNTDOWN = 100000;

    class Counter implements Runnable {
        final AtomicIntegerArray ai;
        volatile int counts;
        Counter(AtomicIntegerArray a) { ai = a; }
        public void run() {
            for (;;) {
                boolean done = true;
                for (int i = 0; i < ai.length(); ++i) {
                    int v = ai.get(i);
                    threadAssertTrue(v >= 0);
                    if (v != 0) {
                        done = false;
                        if (ai.compareAndSet(i, v, v-1))
                            ++counts;
                    }
                }
                if (done)
                    break;
            }
        }
    }

    /**
     * Multiple threads using same array of counters successfully
     * update a number of times equal to total count
     */
    public void testCountingInMultipleThreads() throws InterruptedException {
        final AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i)
            ai.set(i, COUNTDOWN);
        Counter c1 = new Counter(ai);
        Counter c2 = new Counter(ai);
        Thread t1 = new Thread(c1);
        Thread t2 = new Thread(c2);
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        assertEquals(c1.counts+c2.counts, SIZE * COUNTDOWN);
    }


    /**
     * a deserialized serialized array holds same values
     */
    public void testSerialization() throws Exception {
        AtomicIntegerArray l = new AtomicIntegerArray(SIZE);
        for (int i = 0; i < SIZE; ++i)
            l.set(i, -i);

        ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
        ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
        out.writeObject(l);
        out.close();

        ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
        ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
        AtomicIntegerArray r = (AtomicIntegerArray) in.readObject();
        for (int i = 0; i < SIZE; ++i) {
            assertEquals(l.get(i), r.get(i));
        }
    }


    /**
     * toString returns current value.
     */
    public void testToString() {
        int[] a = { 17, 3, -42, 99, -7};
        AtomicIntegerArray ai = new AtomicIntegerArray(a);
        assertEquals(Arrays.toString(a), ai.toString());
    }

}
Revision:	1.17
Committed:	Wed Aug 25 00:07:03 2010 UTC (13 years, 8 months ago) by jsr166
Branch:	MAIN
Changes since 1.16:	+2 -2 lines
Log Message:	whitespace
#	User	Rev	Content
1	dl	1.1	/*
2	dl	1.6	* 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	jsr166	1.11	* Other contributors include Andrew Wright, Jeffrey Hayes,
6			* Pat Fisher, Mike Judd.
7	dl	1.1	*/
8
9			import junit.framework.*;
10			import java.util.concurrent.atomic.*;
11	dl	1.2	import java.io.*;
12	dl	1.9	import java.util.*;
13	dl	1.1
14	dl	1.3	public class AtomicIntegerArrayTest extends JSR166TestCase {
15	dl	1.1
16	jsr166	1.17	public static void main(String[] args) {
17			junit.textui.TestRunner.run(suite());
18	dl	1.1	}
19			public static Test suite() {
20			return new TestSuite(AtomicIntegerArrayTest.class);
21			}
22
23	dl	1.3
24	dl	1.4	/**
25	dl	1.5	* constructor creates array of given size with all elements zero
26	dl	1.4	*/
27			public void testConstructor() {
28	dl	1.3	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
29	jsr166	1.11	for (int i = 0; i < SIZE; ++i)
30	dl	1.1	assertEquals(0,ai.get(i));
31			}
32
33	dl	1.4	/**
34	dl	1.7	* constructor with null array throws NPE
35			*/
36			public void testConstructor2NPE() {
37			try {
38			int[] a = null;
39			AtomicIntegerArray ai = new AtomicIntegerArray(a);
40	jsr166	1.14	shouldThrow();
41			} catch (NullPointerException success) {}
42	dl	1.7	}
43
44			/**
45			* constructor with array is of same size and has all elements
46			*/
47			public void testConstructor2() {
48			int[] a = { 17, 3, -42, 99, -7};
49			AtomicIntegerArray ai = new AtomicIntegerArray(a);
50			assertEquals(a.length, ai.length());
51	jsr166	1.11	for (int i = 0; i < a.length; ++i)
52	dl	1.7	assertEquals(a[i], ai.get(i));
53			}
54
55			/**
56	dl	1.5	* get and set for out of bound indices throw IndexOutOfBoundsException
57			*/
58	jsr166	1.13	public void testIndexing() {
59	dl	1.5	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
60			try {
61			ai.get(SIZE);
62	jsr166	1.14	shouldThrow();
63	jsr166	1.13	} catch (IndexOutOfBoundsException success) {
64	dl	1.5	}
65			try {
66			ai.get(-1);
67	jsr166	1.14	shouldThrow();
68	jsr166	1.13	} catch (IndexOutOfBoundsException success) {
69	dl	1.5	}
70			try {
71			ai.set(SIZE, 0);
72	jsr166	1.14	shouldThrow();
73	jsr166	1.13	} catch (IndexOutOfBoundsException success) {
74	dl	1.5	}
75			try {
76			ai.set(-1, 0);
77	jsr166	1.14	shouldThrow();
78	jsr166	1.13	} catch (IndexOutOfBoundsException success) {
79	dl	1.5	}
80			}
81
82			/**
83			* get returns the last value set at index
84	dl	1.4	*/
85			public void testGetSet() {
86	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
87	dl	1.3	for (int i = 0; i < SIZE; ++i) {
88	dl	1.1	ai.set(i, 1);
89			assertEquals(1,ai.get(i));
90			ai.set(i, 2);
91			assertEquals(2,ai.get(i));
92			ai.set(i, -3);
93			assertEquals(-3,ai.get(i));
94			}
95			}
96
97	dl	1.4	/**
98	dl	1.10	* get returns the last value lazySet at index by same thread
99			*/
100			public void testGetLazySet() {
101	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
102	dl	1.10	for (int i = 0; i < SIZE; ++i) {
103			ai.lazySet(i, 1);
104			assertEquals(1,ai.get(i));
105			ai.lazySet(i, 2);
106			assertEquals(2,ai.get(i));
107			ai.lazySet(i, -3);
108			assertEquals(-3,ai.get(i));
109			}
110			}
111
112			/**
113	dl	1.5	* compareAndSet succeeds in changing value if equal to expected else fails
114	dl	1.4	*/
115			public void testCompareAndSet() {
116	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
117	dl	1.3	for (int i = 0; i < SIZE; ++i) {
118	dl	1.1	ai.set(i, 1);
119			assertTrue(ai.compareAndSet(i, 1,2));
120			assertTrue(ai.compareAndSet(i, 2,-4));
121			assertEquals(-4,ai.get(i));
122			assertFalse(ai.compareAndSet(i, -5,7));
123	jsr166	1.16	assertEquals(-4,ai.get(i));
124	dl	1.1	assertTrue(ai.compareAndSet(i, -4,7));
125			assertEquals(7,ai.get(i));
126			}
127			}
128
129	dl	1.4	/**
130	dl	1.5	* compareAndSet in one thread enables another waiting for value
131			* to succeed
132			*/
133	jsr166	1.14	public void testCompareAndSetInMultipleThreads() throws Exception {
134	dl	1.5	final AtomicIntegerArray a = new AtomicIntegerArray(1);
135			a.set(0, 1);
136	jsr166	1.15	Thread t = new Thread(new CheckedRunnable() {
137			public void realRun() {
138			while (!a.compareAndSet(0, 2, 3))
139			Thread.yield();
140			}});
141	jsr166	1.14
142			t.start();
143			assertTrue(a.compareAndSet(0, 1, 2));
144			t.join(LONG_DELAY_MS);
145			assertFalse(t.isAlive());
146			assertEquals(a.get(0), 3);
147	dl	1.5	}
148
149			/**
150			* repeated weakCompareAndSet succeeds in changing value when equal
151	jsr166	1.11	* to expected
152	dl	1.4	*/
153			public void testWeakCompareAndSet() {
154	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
155	dl	1.3	for (int i = 0; i < SIZE; ++i) {
156	dl	1.1	ai.set(i, 1);
157	jsr166	1.12	while (!ai.weakCompareAndSet(i, 1,2));
158			while (!ai.weakCompareAndSet(i, 2,-4));
159	dl	1.1	assertEquals(-4,ai.get(i));
160	jsr166	1.12	while (!ai.weakCompareAndSet(i, -4,7));
161	dl	1.1	assertEquals(7,ai.get(i));
162			}
163			}
164
165	dl	1.4	/**
166	dl	1.5	* getAndSet returns previous value and sets to given value at given index
167	dl	1.4	*/
168			public void testGetAndSet() {
169	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
170	dl	1.3	for (int i = 0; i < SIZE; ++i) {
171	dl	1.1	ai.set(i, 1);
172			assertEquals(1,ai.getAndSet(i,0));
173			assertEquals(0,ai.getAndSet(i,-10));
174			assertEquals(-10,ai.getAndSet(i,1));
175			}
176			}
177
178	dl	1.4	/**
179	dl	1.5	* getAndAdd returns previous value and adds given value
180	dl	1.4	*/
181			public void testGetAndAdd() {
182	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
183	dl	1.3	for (int i = 0; i < SIZE; ++i) {
184	dl	1.1	ai.set(i, 1);
185			assertEquals(1,ai.getAndAdd(i,2));
186			assertEquals(3,ai.get(i));
187			assertEquals(3,ai.getAndAdd(i,-4));
188			assertEquals(-1,ai.get(i));
189			}
190			}
191
192	dl	1.4	/**
193	dl	1.5	* getAndDecrement returns previous value and decrements
194	dl	1.4	*/
195			public void testGetAndDecrement() {
196	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
197	dl	1.3	for (int i = 0; i < SIZE; ++i) {
198	dl	1.1	ai.set(i, 1);
199			assertEquals(1,ai.getAndDecrement(i));
200			assertEquals(0,ai.getAndDecrement(i));
201			assertEquals(-1,ai.getAndDecrement(i));
202			}
203			}
204
205	dl	1.4	/**
206	dl	1.5	* getAndIncrement returns previous value and increments
207	dl	1.4	*/
208			public void testGetAndIncrement() {
209	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
210	dl	1.3	for (int i = 0; i < SIZE; ++i) {
211	dl	1.1	ai.set(i, 1);
212			assertEquals(1,ai.getAndIncrement(i));
213			assertEquals(2,ai.get(i));
214			ai.set(i,-2);
215			assertEquals(-2,ai.getAndIncrement(i));
216			assertEquals(-1,ai.getAndIncrement(i));
217			assertEquals(0,ai.getAndIncrement(i));
218			assertEquals(1,ai.get(i));
219			}
220			}
221
222	dl	1.4	/**
223	dl	1.5	* addAndGet adds given value to current, and returns current value
224	dl	1.4	*/
225	dl	1.1	public void testAddAndGet() {
226	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
227	dl	1.3	for (int i = 0; i < SIZE; ++i) {
228	dl	1.1	ai.set(i, 1);
229			assertEquals(3,ai.addAndGet(i,2));
230			assertEquals(3,ai.get(i));
231			assertEquals(-1,ai.addAndGet(i,-4));
232			assertEquals(-1,ai.get(i));
233			}
234			}
235
236	dl	1.4	/**
237	dl	1.5	* decrementAndGet decrements and returns current value
238	dl	1.4	*/
239			public void testDecrementAndGet() {
240	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
241	dl	1.3	for (int i = 0; i < SIZE; ++i) {
242	dl	1.1	ai.set(i, 1);
243			assertEquals(0,ai.decrementAndGet(i));
244			assertEquals(-1,ai.decrementAndGet(i));
245			assertEquals(-2,ai.decrementAndGet(i));
246			assertEquals(-2,ai.get(i));
247			}
248			}
249
250	dl	1.4	/**
251	dl	1.5	* incrementAndGet increments and returns current value
252	dl	1.4	*/
253	dl	1.1	public void testIncrementAndGet() {
254	jsr166	1.11	AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
255	dl	1.3	for (int i = 0; i < SIZE; ++i) {
256	dl	1.1	ai.set(i, 1);
257			assertEquals(2,ai.incrementAndGet(i));
258			assertEquals(2,ai.get(i));
259			ai.set(i, -2);
260			assertEquals(-1,ai.incrementAndGet(i));
261			assertEquals(0,ai.incrementAndGet(i));
262			assertEquals(1,ai.incrementAndGet(i));
263			assertEquals(1,ai.get(i));
264	dl	1.2	}
265			}
266
267	dl	1.3	static final int COUNTDOWN = 100000;
268	jsr166	1.11
269	dl	1.3	class Counter implements Runnable {
270			final AtomicIntegerArray ai;
271			volatile int counts;
272			Counter(AtomicIntegerArray a) { ai = a; }
273			public void run() {
274			for (;;) {
275			boolean done = true;
276			for (int i = 0; i < ai.length(); ++i) {
277			int v = ai.get(i);
278			threadAssertTrue(v >= 0);
279			if (v != 0) {
280			done = false;
281			if (ai.compareAndSet(i, v, v-1))
282			++counts;
283			}
284			}
285			if (done)
286			break;
287			}
288			}
289			}
290
291	dl	1.4	/**
292	dl	1.5	* Multiple threads using same array of counters successfully
293			* update a number of times equal to total count
294	dl	1.4	*/
295	jsr166	1.14	public void testCountingInMultipleThreads() throws InterruptedException {
296			final AtomicIntegerArray ai = new AtomicIntegerArray(SIZE);
297			for (int i = 0; i < SIZE; ++i)
298			ai.set(i, COUNTDOWN);
299			Counter c1 = new Counter(ai);
300			Counter c2 = new Counter(ai);
301			Thread t1 = new Thread(c1);
302			Thread t2 = new Thread(c2);
303			t1.start();
304			t2.start();
305			t1.join();
306			t2.join();
307			assertEquals(c1.counts+c2.counts, SIZE * COUNTDOWN);
308	dl	1.3	}
309
310
311	dl	1.4	/**
312	dl	1.5	* a deserialized serialized array holds same values
313	dl	1.4	*/
314	jsr166	1.14	public void testSerialization() throws Exception {
315	jsr166	1.11	AtomicIntegerArray l = new AtomicIntegerArray(SIZE);
316			for (int i = 0; i < SIZE; ++i)
317	dl	1.2	l.set(i, -i);
318
319	jsr166	1.14	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
320			ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
321			out.writeObject(l);
322			out.close();
323
324			ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
325			ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
326			AtomicIntegerArray r = (AtomicIntegerArray) in.readObject();
327			for (int i = 0; i < SIZE; ++i) {
328			assertEquals(l.get(i), r.get(i));
329	dl	1.1	}
330			}
331
332	dl	1.8
333	dl	1.9	/**
334			* toString returns current value.
335	jsr166	1.11	*/
336	dl	1.9	public void testToString() {
337			int[] a = { 17, 3, -42, 99, -7};
338			AtomicIntegerArray ai = new AtomicIntegerArray(a);
339			assertEquals(Arrays.toString(a), ai.toString());
340			}
341	dl	1.8
342	dl	1.1	}