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, ((Integer)full.get(0)).intValue());
    }

    /**
     *   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, ((Integer)i.next()).intValue());
        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, ((Integer)i.next()).intValue());
        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, ((Integer)i.next()).intValue());
        assertEquals(2, j);
    }

    /**
     *   remove  removes and returns the object at the given index
     */
    public void testRemove() {
        CopyOnWriteArrayList full = populatedArray(3);
        assertEquals(two, 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(two, full.set(2, four));
        assertEquals(4, ((Integer)full.get(2)).intValue());
    }

    /**
     *   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, ((Integer)o[0]).intValue());
        assertEquals(1, ((Integer)o[1]).intValue());
        assertEquals(2, ((Integer)o[2]).intValue());
    }

    /**
     *   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 e){}
    }

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

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

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

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

    /**
     *   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 e){}
    }
    
    /**
     *   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 e){}
    }
    
    /**
     *   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 e){}
    }

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

    /**
     *   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 e){}
    }

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

            shouldThrow();
        } catch(IndexOutOfBoundsException e){}
    }

    /**
     *   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 e){}
    }

    /**
     *   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 e){}
    }

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

        try {
            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));
        } catch(Exception e){
            unexpectedException();
        }
    }
    
}
Revision:	1.7
Committed:	Mon Dec 29 19:05:40 2003 UTC (20 years, 4 months ago) by dl
Branch:	MAIN
CVS Tags:	JSR166_PFD
Changes since 1.6:	+1 -1 lines
Log Message:	spellcheck
#	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, ((Integer)full.get(0)).intValue());
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, ((Integer)i.next()).intValue());
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	}
251	catch (UnsupportedOperationException success) {}
252	}
253
254	/**
255	* toString contains toString of elements
256	*/
257	public void testToString() {
258	CopyOnWriteArrayList full = populatedArray(3);
259	String s = full.toString();
260	for (int i = 0; i < 3; ++i) {
261	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
262	}
263	}
264
265	/**
266	* lastIndexOf returns the index for the given object
267	*/
268	public void testLastIndexOf1() {
269	CopyOnWriteArrayList full = populatedArray(3);
270	full.add(one);
271	full.add(three);
272	assertEquals(3, full.lastIndexOf(one));
273	assertEquals(-1, full.lastIndexOf(six));
274	}
275
276	/**
277	* lastIndexOf returns the index from the given starting point
278	*/
279	public void testlastIndexOf2() {
280	CopyOnWriteArrayList full = populatedArray(3);
281	full.add(one);
282	full.add(three);
283	assertEquals(3, full.lastIndexOf(one, 4));
284	assertEquals(-1, full.lastIndexOf(three, 3));
285	}
286
287	/**
288	* listIterator traverses all elements
289	*/
290	public void testListIterator1() {
291	CopyOnWriteArrayList full = populatedArray(SIZE);
292	ListIterator i = full.listIterator();
293	int j;
294	for(j = 0; i.hasNext(); j++)
295	assertEquals(j, ((Integer)i.next()).intValue());
296	assertEquals(SIZE, j);
297	}
298
299	/**
300	* listIterator only returns those elements after the given index
301	*/
302	public void testListIterator2() {
303	CopyOnWriteArrayList full = populatedArray(3);
304	ListIterator i = full.listIterator(1);
305	int j;
306	for(j = 0; i.hasNext(); j++)
307	assertEquals(j+1, ((Integer)i.next()).intValue());
308	assertEquals(2, j);
309	}
310
311	/**
312	* remove removes and returns the object at the given index
313	*/
314	public void testRemove() {
315	CopyOnWriteArrayList full = populatedArray(3);
316	assertEquals(two, full.remove(2));
317	assertEquals(2, full.size());
318	}
319
320	/**
321	* removeAll removes all elements from the given collection
322	*/
323	public void testRemoveAll() {
324	CopyOnWriteArrayList full = populatedArray(3);
325	Vector v = new Vector();
326	v.add(one);
327	v.add(two);
328	full.removeAll(v);
329	assertEquals(1, full.size());
330	}
331
332	/**
333	* set changes the element at the given index
334	*/
335	public void testSet() {
336	CopyOnWriteArrayList full = populatedArray(3);
337	assertEquals(two, full.set(2, four));
338	assertEquals(4, ((Integer)full.get(2)).intValue());
339	}
340
341	/**
342	* size returns the number of elements
343	*/
344	public void testSize() {
345	CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
346	CopyOnWriteArrayList full = populatedArray(SIZE);
347	assertEquals(SIZE, full.size());
348	assertEquals(0, empty.size());
349	}
350
351	/**
352	* toArray returns an Object array containing all elements from the list
353	*/
354	public void testToArray() {
355	CopyOnWriteArrayList full = populatedArray(3);
356	Object[] o = full.toArray();
357	assertEquals(3, o.length);
358	assertEquals(0, ((Integer)o[0]).intValue());
359	assertEquals(1, ((Integer)o[1]).intValue());
360	assertEquals(2, ((Integer)o[2]).intValue());
361	}
362
363	/**
364	* toArray returns an Integer array containing all elements from
365	* the list
366	*/
367	public void testToArray2() {
368	CopyOnWriteArrayList full = populatedArray(3);
369	Integer[] i = new Integer[3];
370	i = (Integer[])full.toArray(i);
371	assertEquals(3, i.length);
372	assertEquals(0, i[0].intValue());
373	assertEquals(1, i[1].intValue());
374	assertEquals(2, i[2].intValue());
375	}
376
377
378	/**
379	* sublists contains elements at indexes offset from their base
380	*/
381	public void testSubList() {
382	CopyOnWriteArrayList a = populatedArray(10);
383	assertTrue(a.subList(1,1).isEmpty());
384	for(int j = 0; j < 9; ++j) {
385	for(int i = j ; i < 10; ++i) {
386	List b = a.subList(j,i);
387	for(int k = j; k < i; ++k) {
388	assertEquals(new Integer(k), b.get(k-j));
389	}
390	}
391	}
392
393	List s = a.subList(2, 5);
394	assertEquals(s.size(), 3);
395	s.set(2, m1);
396	assertEquals(a.get(4), m1);
397	s.clear();
398	assertEquals(a.size(), 7);
399	}
400
401	// Exception tests
402
403	/**
404	* toArray throws an ArrayStoreException when the given array
405	* can not store the objects inside the list
406	*/
407	public void testToArray_ArrayStoreException() {
408	try {
409	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
410	c.add("zfasdfsdf");
411	c.add("asdadasd");
412	c.toArray(new Long[5]);
413	shouldThrow();
414	} catch(ArrayStoreException e){}
415	}
416
417	/**
418	* get throws an IndexOutOfBoundsException on a negative index
419	*/
420	public void testGet1_IndexOutOfBoundsException() {
421	try {
422	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
423	c.get(-1);
424	shouldThrow();
425	} catch(IndexOutOfBoundsException e){}
426	}
427
428	/**
429	* get throws an IndexOutOfBoundsException on a too high index
430	*/
431	public void testGet2_IndexOutOfBoundsException() {
432	try {
433	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
434	c.add("asdasd");
435	c.add("asdad");
436	c.get(100);
437	shouldThrow();
438	} catch(IndexOutOfBoundsException e){}
439	}
440
441	/**
442	* set throws an IndexOutOfBoundsException on a negative index
443	*/
444	public void testSet1_IndexOutOfBoundsException() {
445	try {
446	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
447	c.set(-1,"qwerty");
448	shouldThrow();
449	} catch(IndexOutOfBoundsException e){}
450	}
451
452	/**
453	* set throws an IndexOutOfBoundsException on a too high index
454	*/
455	public void testSet2() {
456	try {
457	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
458	c.add("asdasd");
459	c.add("asdad");
460	c.set(100, "qwerty");
461	shouldThrow();
462	} catch(IndexOutOfBoundsException e){}
463	}
464
465	/**
466	* add throws an IndexOutOfBoundsException on a negative index
467	*/
468	public void testAdd1_IndexOutOfBoundsException() {
469	try {
470	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
471	c.add(-1,"qwerty");
472	shouldThrow();
473	} catch(IndexOutOfBoundsException e){}
474	}
475
476	/**
477	* add throws an IndexOutOfBoundsException on a too high index
478	*/
479	public void testAdd2_IndexOutOfBoundsException() {
480	try {
481	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
482	c.add("asdasd");
483	c.add("asdasdasd");
484	c.add(100, "qwerty");
485	shouldThrow();
486	} catch(IndexOutOfBoundsException e){}
487	}
488
489	/**
490	* remove throws an IndexOutOfBoundsException on a negative index
491	*/
492	public void testRemove1_IndexOutOfBounds() {
493	try {
494	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
495	c.remove(-1);
496	shouldThrow();
497	} catch(IndexOutOfBoundsException e){}
498	}
499
500	/**
501	* remove throws an IndexOutOfBoundsException on a too high index
502	*/
503	public void testRemove2_IndexOutOfBounds() {
504	try {
505	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
506	c.add("asdasd");
507	c.add("adasdasd");
508	c.remove(100);
509	shouldThrow();
510	} catch(IndexOutOfBoundsException e){}
511	}
512
513	/**
514	* addAll throws an IndexOutOfBoundsException on a negative index
515	*/
516	public void testAddAll1_IndexOutOfBoundsException() {
517	try {
518	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
519	c.addAll(-1,new LinkedList());
520	shouldThrow();
521	} catch(IndexOutOfBoundsException e){}
522	}
523
524	/**
525	* addAll throws an IndexOutOfBoundsException on a too high index
526	*/
527	public void testAddAll2_IndexOutOfBoundsException() {
528	try {
529	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
530	c.add("asdasd");
531	c.add("asdasdasd");
532	c.addAll(100, new LinkedList());
533	shouldThrow();
534	} catch(IndexOutOfBoundsException e){}
535	}
536
537	/**
538	* listIterator throws an IndexOutOfBoundsException on a negative index
539	*/
540	public void testListIterator1_IndexOutOfBoundsException() {
541	try {
542	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
543	c.listIterator(-1);
544	shouldThrow();
545	} catch(IndexOutOfBoundsException e){}
546	}
547
548	/**
549	* listIterator throws an IndexOutOfBoundsException on a too high index
550	*/
551	public void testListIterator2_IndexOutOfBoundsException() {
552	try {
553	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
554	c.add("adasd");
555	c.add("asdasdas");
556	c.listIterator(100);
557	shouldThrow();
558	} catch(IndexOutOfBoundsException e){}
559	}
560
561	/**
562	* subList throws an IndexOutOfBoundsException on a negative index
563	*/
564	public void testSubList1_IndexOutOfBoundsException() {
565	try {
566	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
567	c.subList(-1,100);
568
569	shouldThrow();
570	} catch(IndexOutOfBoundsException e){}
571	}
572
573	/**
574	* subList throws an IndexOutOfBoundsException on a too high index
575	*/
576	public void testSubList2_IndexOutOfBoundsException() {
577	try {
578	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
579	c.add("asdasd");
580	c.subList(1,100);
581	shouldThrow();
582	} catch(IndexOutOfBoundsException e){}
583	}
584
585	/**
586	* subList throws IndexOutOfBoundsException when the second index
587	* is lower then the first
588	*/
589	public void testSubList3_IndexOutOfBoundsException() {
590	try {
591	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
592	c.subList(3,1);
593
594	shouldThrow();
595	} catch(IndexOutOfBoundsException e){}
596	}
597
598	/**
599	* a deserialized serialiszed list is equal
600	*/
601	public void testSerialization() {
602	CopyOnWriteArrayList q = populatedArray(SIZE);
603
604	try {
605	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
606	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
607	out.writeObject(q);
608	out.close();
609
610	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
611	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
612	CopyOnWriteArrayList r = (CopyOnWriteArrayList)in.readObject();
613	assertEquals(q.size(), r.size());
614	assertTrue(q.equals(r));
615	assertTrue(r.equals(q));
616	} catch(Exception e){
617	unexpectedException();
618	}
619	}
620
621	}