test/tck/CopyOnWriteArrayListTest.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.*;
import java.util.concurrent.*;
import java.io.*;

public class CopyOnWriteArrayListTest extends JSR166TestCase {

    public static void main(String[] args) {
        junit.textui.TestRunner.run(suite());
    }

    public static Test suite() {
        return new TestSuite(CopyOnWriteArrayListTest.class);
    }

    static CopyOnWriteArrayList populatedArray(int n) {
        CopyOnWriteArrayList a = new CopyOnWriteArrayList();
        assertTrue(a.isEmpty());
        for (int i = 0; i < n; ++i)
            a.add(new Integer(i));
        assertFalse(a.isEmpty());
        assertEquals(n, a.size());
        return a;
    }


    /**
     * a new list is empty
     */
    public void testConstructor() {
        CopyOnWriteArrayList a = new CopyOnWriteArrayList();
        assertTrue(a.isEmpty());
    }

    /**
     * new list contains all elements of initializing array
     */
    public void testConstructor2() {
        Integer[] ints = new Integer[SIZE];
        for (int i = 0; i < SIZE-1; ++i)
            ints[i] = new Integer(i);
        CopyOnWriteArrayList a = new CopyOnWriteArrayList(ints);
        for (int i = 0; i < SIZE; ++i)
            assertEquals(ints[i], a.get(i));
    }

    /**
     * new list contains all elements of initializing collection
     */
    public void testConstructor3() {
        Integer[] ints = new Integer[SIZE];
        for (int i = 0; i < SIZE-1; ++i)
            ints[i] = new Integer(i);
        CopyOnWriteArrayList a = new CopyOnWriteArrayList(Arrays.asList(ints));
        for (int i = 0; i < SIZE; ++i)
            assertEquals(ints[i], a.get(i));
    }


    /**
     * addAll adds each element from the given collection
     */
    public void testAddAll() {
        CopyOnWriteArrayList full = populatedArray(3);
        Vector v = new Vector();
        v.add(three);
        v.add(four);
        v.add(five);
        full.addAll(v);
        assertEquals(6, full.size());
    }

    /**
     * addAllAbsent adds each element from the given collection that did not
     * already exist in the List
     */
    public void testAddAllAbsent() {
        CopyOnWriteArrayList full = populatedArray(3);
        Vector v = new Vector();
        v.add(three);
        v.add(four);
        v.add(one); // will not add this element
        full.addAllAbsent(v);
        assertEquals(5, full.size());
    }

    /**
     * addIfAbsent will not add the element if it already exists in the list
     */
    public void testAddIfAbsent() {
        CopyOnWriteArrayList full = populatedArray(SIZE);
        full.addIfAbsent(one);
        assertEquals(SIZE, full.size());
    }

    /**
     * addIfAbsent adds the element when it does not exist in the list
     */
    public void testAddIfAbsent2() {
        CopyOnWriteArrayList full = populatedArray(SIZE);
        full.addIfAbsent(three);
        assertTrue(full.contains(three));
    }

    /**
     * clear removes all elements from the list
     */
    public void testClear() {
        CopyOnWriteArrayList full = populatedArray(SIZE);
        full.clear();
        assertEquals(0, full.size());
    }


    /**
     * Cloned list is equal
     */
    public void testClone() {
        CopyOnWriteArrayList l1 = populatedArray(SIZE);
        CopyOnWriteArrayList l2 = (CopyOnWriteArrayList)(l1.clone());
        assertEquals(l1, l2);
        l1.clear();
        assertFalse(l1.equals(l2));
    }

    /**
     * contains is true for added elements
     */
    public void testContains() {
        CopyOnWriteArrayList full = populatedArray(3);
        assertTrue(full.contains(one));
        assertFalse(full.contains(five));
    }

    /**
     * adding at an index places it in the indicated index
     */
    public void testAddIndex() {
        CopyOnWriteArrayList full = populatedArray(3);
        full.add(0, m1);
        assertEquals(4, full.size());
        assertEquals(m1, full.get(0));
        assertEquals(zero, full.get(1));

        full.add(2, m2);
        assertEquals(5, full.size());
        assertEquals(m2, full.get(2));
        assertEquals(two, full.get(4));
    }

    /**
     * lists with same elements are equal and have same hashCode
     */
    public void testEquals() {
        CopyOnWriteArrayList a = populatedArray(3);
        CopyOnWriteArrayList b = populatedArray(3);
        assertTrue(a.equals(b));
        assertTrue(b.equals(a));
        assertEquals(a.hashCode(), b.hashCode());
        a.add(m1);
        assertFalse(a.equals(b));
        assertFalse(b.equals(a));
        b.add(m1);
        assertTrue(a.equals(b));
        assertTrue(b.equals(a));
        assertEquals(a.hashCode(), b.hashCode());
    }


    /**
     * containsAll returns true for collection with subset of elements
     */
    public void testContainsAll() {
        CopyOnWriteArrayList full = populatedArray(3);
        Vector v = new Vector();
        v.add(one);
        v.add(two);
        assertTrue(full.containsAll(v));
        v.add(six);
        assertFalse(full.containsAll(v));
    }

    /**
     * get returns the value at the given index
     */
    public void testGet() {
        CopyOnWriteArrayList full = populatedArray(3);
        assertEquals(0, full.get(0));
    }

    /**
     * indexOf gives the index for the given object
     */
    public void testIndexOf() {
        CopyOnWriteArrayList full = populatedArray(3);
        assertEquals(1, full.indexOf(one));
        assertEquals(-1, full.indexOf("puppies"));
    }

    /**
     * indexOf gives the index based on the given index
     * at which to start searching
     */
    public void testIndexOf2() {
        CopyOnWriteArrayList full = populatedArray(3);
        assertEquals(1, full.indexOf(one, 0));
        assertEquals(-1, full.indexOf(one, 2));
    }

    /**
     * isEmpty returns true when empty, else false
     */
    public void testIsEmpty() {
        CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
        CopyOnWriteArrayList full = populatedArray(SIZE);
        assertTrue(empty.isEmpty());
        assertFalse(full.isEmpty());
    }

    /**
     * iterator() returns an iterator containing the elements of the list
     */
    public void testIterator() {
        CopyOnWriteArrayList full = populatedArray(SIZE);
        Iterator i = full.iterator();
        int j;
        for (j = 0; i.hasNext(); j++)
            assertEquals(j, i.next());
        assertEquals(SIZE, j);
    }

    /**
     * iterator.remove throws UnsupportedOperationException
     */
    public void testIteratorRemove() {
        CopyOnWriteArrayList full = populatedArray(SIZE);
        Iterator it = full.iterator();
        it.next();
        try {
            it.remove();
            shouldThrow();
        } catch (UnsupportedOperationException success) {}
    }

    /**
     * toString contains toString of elements
     */
    public void testToString() {
        CopyOnWriteArrayList full = populatedArray(3);
        String s = full.toString();
        for (int i = 0; i < 3; ++i) {
            assertTrue(s.indexOf(String.valueOf(i)) >= 0);
        }
    }

    /**
     * lastIndexOf returns the index for the given object
     */
    public void testLastIndexOf1() {
        CopyOnWriteArrayList full = populatedArray(3);
        full.add(one);
        full.add(three);
        assertEquals(3, full.lastIndexOf(one));
        assertEquals(-1, full.lastIndexOf(six));
    }

    /**
     * lastIndexOf returns the index from the given starting point
     */
    public void testlastIndexOf2() {
        CopyOnWriteArrayList full = populatedArray(3);
        full.add(one);
        full.add(three);
        assertEquals(3, full.lastIndexOf(one, 4));
        assertEquals(-1, full.lastIndexOf(three, 3));
    }

    /**
     * listIterator traverses all elements
     */
    public void testListIterator1() {
        CopyOnWriteArrayList full = populatedArray(SIZE);
        ListIterator i = full.listIterator();
        int j;
        for (j = 0; i.hasNext(); j++)
            assertEquals(j, i.next());
        assertEquals(SIZE, j);
    }

    /**
     * listIterator only returns those elements after the given index
     */
    public void testListIterator2() {
        CopyOnWriteArrayList full = populatedArray(3);
        ListIterator i = full.listIterator(1);
        int j;
        for (j = 0; i.hasNext(); j++)
            assertEquals(j+1, i.next());
        assertEquals(2, j);
    }

    /**
     * remove removes and returns the object at the given index
     */
    public void testRemove() {
        CopyOnWriteArrayList full = populatedArray(3);
        assertEquals(2, full.remove(2));
        assertEquals(2, full.size());
    }

    /**
     * removeAll removes all elements from the given collection
     */
    public void testRemoveAll() {
        CopyOnWriteArrayList full = populatedArray(3);
        Vector v = new Vector();
        v.add(one);
        v.add(two);
        full.removeAll(v);
        assertEquals(1, full.size());
    }

    /**
     * set changes the element at the given index
     */
    public void testSet() {
        CopyOnWriteArrayList full = populatedArray(3);
        assertEquals(2, full.set(2, four));
        assertEquals(4, full.get(2));
    }

    /**
     * size returns the number of elements
     */
    public void testSize() {
        CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
        CopyOnWriteArrayList full = populatedArray(SIZE);
        assertEquals(SIZE, full.size());
        assertEquals(0, empty.size());
    }

    /**
     * toArray returns an Object array containing all elements from the list
     */
    public void testToArray() {
        CopyOnWriteArrayList full = populatedArray(3);
        Object[] o = full.toArray();
        assertEquals(3, o.length);
        assertEquals(0, o[0]);
        assertEquals(1, o[1]);
        assertEquals(2, o[2]);
    }

    /**
     * toArray returns an Integer array containing all elements from
     * the list
     */
    public void testToArray2() {
        CopyOnWriteArrayList full = populatedArray(3);
        Integer[] i = new Integer[3];
        i = (Integer[])full.toArray(i);
        assertEquals(3, i.length);
        assertEquals(0, i[0].intValue());
        assertEquals(1, i[1].intValue());
        assertEquals(2, i[2].intValue());
    }


    /**
     * sublists contains elements at indexes offset from their base
     */
    public void testSubList() {
        CopyOnWriteArrayList a = populatedArray(10);
        assertTrue(a.subList(1,1).isEmpty());
        for (int j = 0; j < 9; ++j) {
            for (int i = j ; i < 10; ++i) {
                List b = a.subList(j,i);
                for (int k = j; k < i; ++k) {
                    assertEquals(new Integer(k), b.get(k-j));
                }
            }
        }

        List s = a.subList(2, 5);
        assertEquals(s.size(), 3);
        s.set(2, m1);
        assertEquals(a.get(4), m1);
        s.clear();
        assertEquals(a.size(), 7);
    }

    // Exception tests

    /**
     * toArray throws an ArrayStoreException when the given array
     * can not store the objects inside the list
     */
    public void testToArray_ArrayStoreException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add("zfasdfsdf");
            c.add("asdadasd");
            c.toArray(new Long[5]);
            shouldThrow();
        } catch (ArrayStoreException success) {}
    }

    /**
     * get throws an IndexOutOfBoundsException on a negative index
     */
    public void testGet1_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.get(-1);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * get throws an IndexOutOfBoundsException on a too high index
     */
    public void testGet2_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add("asdasd");
            c.add("asdad");
            c.get(100);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * set throws an IndexOutOfBoundsException on a negative index
     */
    public void testSet1_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.set(-1,"qwerty");
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * set throws an IndexOutOfBoundsException on a too high index
     */
    public void testSet2() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add("asdasd");
            c.add("asdad");
            c.set(100, "qwerty");
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * add throws an IndexOutOfBoundsException on a negative index
     */
    public void testAdd1_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add(-1,"qwerty");
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * add throws an IndexOutOfBoundsException on a too high index
     */
    public void testAdd2_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add("asdasd");
            c.add("asdasdasd");
            c.add(100, "qwerty");
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * remove throws an IndexOutOfBoundsException on a negative index
     */
    public void testRemove1_IndexOutOfBounds() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.remove(-1);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * remove throws an IndexOutOfBoundsException on a too high index
     */
    public void testRemove2_IndexOutOfBounds() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add("asdasd");
            c.add("adasdasd");
            c.remove(100);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * addAll throws an IndexOutOfBoundsException on a negative index
     */
    public void testAddAll1_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.addAll(-1,new LinkedList());
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * addAll throws an IndexOutOfBoundsException on a too high index
     */
    public void testAddAll2_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add("asdasd");
            c.add("asdasdasd");
            c.addAll(100, new LinkedList());
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * listIterator throws an IndexOutOfBoundsException on a negative index
     */
    public void testListIterator1_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.listIterator(-1);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * listIterator throws an IndexOutOfBoundsException on a too high index
     */
    public void testListIterator2_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add("adasd");
            c.add("asdasdas");
            c.listIterator(100);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * subList throws an IndexOutOfBoundsException on a negative index
     */
    public void testSubList1_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.subList(-1,100);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * subList throws an IndexOutOfBoundsException on a too high index
     */
    public void testSubList2_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add("asdasd");
            c.subList(1,100);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * subList throws IndexOutOfBoundsException when the second index
     * is lower then the first
     */
    public void testSubList3_IndexOutOfBoundsException() {
        try {
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.subList(3,1);
            shouldThrow();
        } catch (IndexOutOfBoundsException success) {}
    }

    /**
     * a deserialized serialized list is equal
     */
    public void testSerialization() throws Exception {
        CopyOnWriteArrayList q = populatedArray(SIZE);

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

        ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
        ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
        CopyOnWriteArrayList r = (CopyOnWriteArrayList)in.readObject();
        assertEquals(q.size(), r.size());
        assertTrue(q.equals(r));
        assertTrue(r.equals(q));
    }

}
Revision:	1.18
Committed:	Sat Oct 9 19:30:35 2010 UTC (13 years, 7 months ago) by jsr166
Branch:	MAIN
Changes since 1.17:	+44 -44 lines
Log Message:	whitespace
#	Content
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
5	* Other contributors include Andrew Wright, Jeffrey Hayes,
6	* Pat Fisher, Mike Judd.
7	*/
8
9	import junit.framework.*;
10	import java.util.*;
11	import java.util.concurrent.*;
12	import java.io.*;
13
14	public class CopyOnWriteArrayListTest extends JSR166TestCase {
15
16	public static void main(String[] args) {
17	junit.textui.TestRunner.run(suite());
18	}
19
20	public static Test suite() {
21	return new TestSuite(CopyOnWriteArrayListTest.class);
22	}
23
24	static CopyOnWriteArrayList populatedArray(int n) {
25	CopyOnWriteArrayList a = new CopyOnWriteArrayList();
26	assertTrue(a.isEmpty());
27	for (int i = 0; i < n; ++i)
28	a.add(new Integer(i));
29	assertFalse(a.isEmpty());
30	assertEquals(n, a.size());
31	return a;
32	}
33
34
35	/**
36	* a new list is empty
37	*/
38	public void testConstructor() {
39	CopyOnWriteArrayList a = new CopyOnWriteArrayList();
40	assertTrue(a.isEmpty());
41	}
42
43	/**
44	* new list contains all elements of initializing array
45	*/
46	public void testConstructor2() {
47	Integer[] ints = new Integer[SIZE];
48	for (int i = 0; i < SIZE-1; ++i)
49	ints[i] = new Integer(i);
50	CopyOnWriteArrayList a = new CopyOnWriteArrayList(ints);
51	for (int i = 0; i < SIZE; ++i)
52	assertEquals(ints[i], a.get(i));
53	}
54
55	/**
56	* new list contains all elements of initializing collection
57	*/
58	public void testConstructor3() {
59	Integer[] ints = new Integer[SIZE];
60	for (int i = 0; i < SIZE-1; ++i)
61	ints[i] = new Integer(i);
62	CopyOnWriteArrayList a = new CopyOnWriteArrayList(Arrays.asList(ints));
63	for (int i = 0; i < SIZE; ++i)
64	assertEquals(ints[i], a.get(i));
65	}
66
67
68	/**
69	* addAll adds each element from the given collection
70	*/
71	public void testAddAll() {
72	CopyOnWriteArrayList full = populatedArray(3);
73	Vector v = new Vector();
74	v.add(three);
75	v.add(four);
76	v.add(five);
77	full.addAll(v);
78	assertEquals(6, full.size());
79	}
80
81	/**
82	* addAllAbsent adds each element from the given collection that did not
83	* already exist in the List
84	*/
85	public void testAddAllAbsent() {
86	CopyOnWriteArrayList full = populatedArray(3);
87	Vector v = new Vector();
88	v.add(three);
89	v.add(four);
90	v.add(one); // will not add this element
91	full.addAllAbsent(v);
92	assertEquals(5, full.size());
93	}
94
95	/**
96	* addIfAbsent will not add the element if it already exists in the list
97	*/
98	public void testAddIfAbsent() {
99	CopyOnWriteArrayList full = populatedArray(SIZE);
100	full.addIfAbsent(one);
101	assertEquals(SIZE, full.size());
102	}
103
104	/**
105	* addIfAbsent adds the element when it does not exist in the list
106	*/
107	public void testAddIfAbsent2() {
108	CopyOnWriteArrayList full = populatedArray(SIZE);
109	full.addIfAbsent(three);
110	assertTrue(full.contains(three));
111	}
112
113	/**
114	* clear removes all elements from the list
115	*/
116	public void testClear() {
117	CopyOnWriteArrayList full = populatedArray(SIZE);
118	full.clear();
119	assertEquals(0, full.size());
120	}
121
122
123	/**
124	* Cloned list is equal
125	*/
126	public void testClone() {
127	CopyOnWriteArrayList l1 = populatedArray(SIZE);
128	CopyOnWriteArrayList l2 = (CopyOnWriteArrayList)(l1.clone());
129	assertEquals(l1, l2);
130	l1.clear();
131	assertFalse(l1.equals(l2));
132	}
133
134	/**
135	* contains is true for added elements
136	*/
137	public void testContains() {
138	CopyOnWriteArrayList full = populatedArray(3);
139	assertTrue(full.contains(one));
140	assertFalse(full.contains(five));
141	}
142
143	/**
144	* adding at an index places it in the indicated index
145	*/
146	public void testAddIndex() {
147	CopyOnWriteArrayList full = populatedArray(3);
148	full.add(0, m1);
149	assertEquals(4, full.size());
150	assertEquals(m1, full.get(0));
151	assertEquals(zero, full.get(1));
152
153	full.add(2, m2);
154	assertEquals(5, full.size());
155	assertEquals(m2, full.get(2));
156	assertEquals(two, full.get(4));
157	}
158
159	/**
160	* lists with same elements are equal and have same hashCode
161	*/
162	public void testEquals() {
163	CopyOnWriteArrayList a = populatedArray(3);
164	CopyOnWriteArrayList b = populatedArray(3);
165	assertTrue(a.equals(b));
166	assertTrue(b.equals(a));
167	assertEquals(a.hashCode(), b.hashCode());
168	a.add(m1);
169	assertFalse(a.equals(b));
170	assertFalse(b.equals(a));
171	b.add(m1);
172	assertTrue(a.equals(b));
173	assertTrue(b.equals(a));
174	assertEquals(a.hashCode(), b.hashCode());
175	}
176
177
178	/**
179	* containsAll returns true for collection with subset of elements
180	*/
181	public void testContainsAll() {
182	CopyOnWriteArrayList full = populatedArray(3);
183	Vector v = new Vector();
184	v.add(one);
185	v.add(two);
186	assertTrue(full.containsAll(v));
187	v.add(six);
188	assertFalse(full.containsAll(v));
189	}
190
191	/**
192	* get returns the value at the given index
193	*/
194	public void testGet() {
195	CopyOnWriteArrayList full = populatedArray(3);
196	assertEquals(0, full.get(0));
197	}
198
199	/**
200	* indexOf gives the index for the given object
201	*/
202	public void testIndexOf() {
203	CopyOnWriteArrayList full = populatedArray(3);
204	assertEquals(1, full.indexOf(one));
205	assertEquals(-1, full.indexOf("puppies"));
206	}
207
208	/**
209	* indexOf gives the index based on the given index
210	* at which to start searching
211	*/
212	public void testIndexOf2() {
213	CopyOnWriteArrayList full = populatedArray(3);
214	assertEquals(1, full.indexOf(one, 0));
215	assertEquals(-1, full.indexOf(one, 2));
216	}
217
218	/**
219	* isEmpty returns true when empty, else false
220	*/
221	public void testIsEmpty() {
222	CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
223	CopyOnWriteArrayList full = populatedArray(SIZE);
224	assertTrue(empty.isEmpty());
225	assertFalse(full.isEmpty());
226	}
227
228	/**
229	* iterator() returns an iterator containing the elements of the list
230	*/
231	public void testIterator() {
232	CopyOnWriteArrayList full = populatedArray(SIZE);
233	Iterator i = full.iterator();
234	int j;
235	for (j = 0; i.hasNext(); j++)
236	assertEquals(j, i.next());
237	assertEquals(SIZE, j);
238	}
239
240	/**
241	* iterator.remove throws UnsupportedOperationException
242	*/
243	public void testIteratorRemove() {
244	CopyOnWriteArrayList full = populatedArray(SIZE);
245	Iterator it = full.iterator();
246	it.next();
247	try {
248	it.remove();
249	shouldThrow();
250	} catch (UnsupportedOperationException success) {}
251	}
252
253	/**
254	* toString contains toString of elements
255	*/
256	public void testToString() {
257	CopyOnWriteArrayList full = populatedArray(3);
258	String s = full.toString();
259	for (int i = 0; i < 3; ++i) {
260	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
261	}
262	}
263
264	/**
265	* lastIndexOf returns the index for the given object
266	*/
267	public void testLastIndexOf1() {
268	CopyOnWriteArrayList full = populatedArray(3);
269	full.add(one);
270	full.add(three);
271	assertEquals(3, full.lastIndexOf(one));
272	assertEquals(-1, full.lastIndexOf(six));
273	}
274
275	/**
276	* lastIndexOf returns the index from the given starting point
277	*/
278	public void testlastIndexOf2() {
279	CopyOnWriteArrayList full = populatedArray(3);
280	full.add(one);
281	full.add(three);
282	assertEquals(3, full.lastIndexOf(one, 4));
283	assertEquals(-1, full.lastIndexOf(three, 3));
284	}
285
286	/**
287	* listIterator traverses all elements
288	*/
289	public void testListIterator1() {
290	CopyOnWriteArrayList full = populatedArray(SIZE);
291	ListIterator i = full.listIterator();
292	int j;
293	for (j = 0; i.hasNext(); j++)
294	assertEquals(j, i.next());
295	assertEquals(SIZE, j);
296	}
297
298	/**
299	* listIterator only returns those elements after the given index
300	*/
301	public void testListIterator2() {
302	CopyOnWriteArrayList full = populatedArray(3);
303	ListIterator i = full.listIterator(1);
304	int j;
305	for (j = 0; i.hasNext(); j++)
306	assertEquals(j+1, i.next());
307	assertEquals(2, j);
308	}
309
310	/**
311	* remove removes and returns the object at the given index
312	*/
313	public void testRemove() {
314	CopyOnWriteArrayList full = populatedArray(3);
315	assertEquals(2, full.remove(2));
316	assertEquals(2, full.size());
317	}
318
319	/**
320	* removeAll removes all elements from the given collection
321	*/
322	public void testRemoveAll() {
323	CopyOnWriteArrayList full = populatedArray(3);
324	Vector v = new Vector();
325	v.add(one);
326	v.add(two);
327	full.removeAll(v);
328	assertEquals(1, full.size());
329	}
330
331	/**
332	* set changes the element at the given index
333	*/
334	public void testSet() {
335	CopyOnWriteArrayList full = populatedArray(3);
336	assertEquals(2, full.set(2, four));
337	assertEquals(4, full.get(2));
338	}
339
340	/**
341	* size returns the number of elements
342	*/
343	public void testSize() {
344	CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
345	CopyOnWriteArrayList full = populatedArray(SIZE);
346	assertEquals(SIZE, full.size());
347	assertEquals(0, empty.size());
348	}
349
350	/**
351	* toArray returns an Object array containing all elements from the list
352	*/
353	public void testToArray() {
354	CopyOnWriteArrayList full = populatedArray(3);
355	Object[] o = full.toArray();
356	assertEquals(3, o.length);
357	assertEquals(0, o[0]);
358	assertEquals(1, o[1]);
359	assertEquals(2, o[2]);
360	}
361
362	/**
363	* toArray returns an Integer array containing all elements from
364	* the list
365	*/
366	public void testToArray2() {
367	CopyOnWriteArrayList full = populatedArray(3);
368	Integer[] i = new Integer[3];
369	i = (Integer[])full.toArray(i);
370	assertEquals(3, i.length);
371	assertEquals(0, i[0].intValue());
372	assertEquals(1, i[1].intValue());
373	assertEquals(2, i[2].intValue());
374	}
375
376
377	/**
378	* sublists contains elements at indexes offset from their base
379	*/
380	public void testSubList() {
381	CopyOnWriteArrayList a = populatedArray(10);
382	assertTrue(a.subList(1,1).isEmpty());
383	for (int j = 0; j < 9; ++j) {
384	for (int i = j ; i < 10; ++i) {
385	List b = a.subList(j,i);
386	for (int k = j; k < i; ++k) {
387	assertEquals(new Integer(k), b.get(k-j));
388	}
389	}
390	}
391
392	List s = a.subList(2, 5);
393	assertEquals(s.size(), 3);
394	s.set(2, m1);
395	assertEquals(a.get(4), m1);
396	s.clear();
397	assertEquals(a.size(), 7);
398	}
399
400	// Exception tests
401
402	/**
403	* toArray throws an ArrayStoreException when the given array
404	* can not store the objects inside the list
405	*/
406	public void testToArray_ArrayStoreException() {
407	try {
408	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
409	c.add("zfasdfsdf");
410	c.add("asdadasd");
411	c.toArray(new Long[5]);
412	shouldThrow();
413	} catch (ArrayStoreException success) {}
414	}
415
416	/**
417	* get throws an IndexOutOfBoundsException on a negative index
418	*/
419	public void testGet1_IndexOutOfBoundsException() {
420	try {
421	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
422	c.get(-1);
423	shouldThrow();
424	} catch (IndexOutOfBoundsException success) {}
425	}
426
427	/**
428	* get throws an IndexOutOfBoundsException on a too high index
429	*/
430	public void testGet2_IndexOutOfBoundsException() {
431	try {
432	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
433	c.add("asdasd");
434	c.add("asdad");
435	c.get(100);
436	shouldThrow();
437	} catch (IndexOutOfBoundsException success) {}
438	}
439
440	/**
441	* set throws an IndexOutOfBoundsException on a negative index
442	*/
443	public void testSet1_IndexOutOfBoundsException() {
444	try {
445	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
446	c.set(-1,"qwerty");
447	shouldThrow();
448	} catch (IndexOutOfBoundsException success) {}
449	}
450
451	/**
452	* set throws an IndexOutOfBoundsException on a too high index
453	*/
454	public void testSet2() {
455	try {
456	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
457	c.add("asdasd");
458	c.add("asdad");
459	c.set(100, "qwerty");
460	shouldThrow();
461	} catch (IndexOutOfBoundsException success) {}
462	}
463
464	/**
465	* add throws an IndexOutOfBoundsException on a negative index
466	*/
467	public void testAdd1_IndexOutOfBoundsException() {
468	try {
469	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
470	c.add(-1,"qwerty");
471	shouldThrow();
472	} catch (IndexOutOfBoundsException success) {}
473	}
474
475	/**
476	* add throws an IndexOutOfBoundsException on a too high index
477	*/
478	public void testAdd2_IndexOutOfBoundsException() {
479	try {
480	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
481	c.add("asdasd");
482	c.add("asdasdasd");
483	c.add(100, "qwerty");
484	shouldThrow();
485	} catch (IndexOutOfBoundsException success) {}
486	}
487
488	/**
489	* remove throws an IndexOutOfBoundsException on a negative index
490	*/
491	public void testRemove1_IndexOutOfBounds() {
492	try {
493	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
494	c.remove(-1);
495	shouldThrow();
496	} catch (IndexOutOfBoundsException success) {}
497	}
498
499	/**
500	* remove throws an IndexOutOfBoundsException on a too high index
501	*/
502	public void testRemove2_IndexOutOfBounds() {
503	try {
504	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
505	c.add("asdasd");
506	c.add("adasdasd");
507	c.remove(100);
508	shouldThrow();
509	} catch (IndexOutOfBoundsException success) {}
510	}
511
512	/**
513	* addAll throws an IndexOutOfBoundsException on a negative index
514	*/
515	public void testAddAll1_IndexOutOfBoundsException() {
516	try {
517	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
518	c.addAll(-1,new LinkedList());
519	shouldThrow();
520	} catch (IndexOutOfBoundsException success) {}
521	}
522
523	/**
524	* addAll throws an IndexOutOfBoundsException on a too high index
525	*/
526	public void testAddAll2_IndexOutOfBoundsException() {
527	try {
528	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
529	c.add("asdasd");
530	c.add("asdasdasd");
531	c.addAll(100, new LinkedList());
532	shouldThrow();
533	} catch (IndexOutOfBoundsException success) {}
534	}
535
536	/**
537	* listIterator throws an IndexOutOfBoundsException on a negative index
538	*/
539	public void testListIterator1_IndexOutOfBoundsException() {
540	try {
541	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
542	c.listIterator(-1);
543	shouldThrow();
544	} catch (IndexOutOfBoundsException success) {}
545	}
546
547	/**
548	* listIterator throws an IndexOutOfBoundsException on a too high index
549	*/
550	public void testListIterator2_IndexOutOfBoundsException() {
551	try {
552	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
553	c.add("adasd");
554	c.add("asdasdas");
555	c.listIterator(100);
556	shouldThrow();
557	} catch (IndexOutOfBoundsException success) {}
558	}
559
560	/**
561	* subList throws an IndexOutOfBoundsException on a negative index
562	*/
563	public void testSubList1_IndexOutOfBoundsException() {
564	try {
565	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
566	c.subList(-1,100);
567	shouldThrow();
568	} catch (IndexOutOfBoundsException success) {}
569	}
570
571	/**
572	* subList throws an IndexOutOfBoundsException on a too high index
573	*/
574	public void testSubList2_IndexOutOfBoundsException() {
575	try {
576	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
577	c.add("asdasd");
578	c.subList(1,100);
579	shouldThrow();
580	} catch (IndexOutOfBoundsException success) {}
581	}
582
583	/**
584	* subList throws IndexOutOfBoundsException when the second index
585	* is lower then the first
586	*/
587	public void testSubList3_IndexOutOfBoundsException() {
588	try {
589	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
590	c.subList(3,1);
591	shouldThrow();
592	} catch (IndexOutOfBoundsException success) {}
593	}
594
595	/**
596	* a deserialized serialized list is equal
597	*/
598	public void testSerialization() throws Exception {
599	CopyOnWriteArrayList q = populatedArray(SIZE);
600
601	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
602	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
603	out.writeObject(q);
604	out.close();
605
606	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
607	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
608	CopyOnWriteArrayList r = (CopyOnWriteArrayList)in.readObject();
609	assertEquals(q.size(), r.size());
610	assertTrue(q.equals(r));
611	assertTrue(r.equals(q));
612	}
613
614	}