test/tck/CopyOnWriteArrayListTest.java

/*
 * Written by members of JCP JSR-166 Expert Group and released to the
 * public domain. Use, modify, and redistribute this code in any way
 * without acknowledgement. Other contributors include Andrew Wright,
 * Jeffrey Hayes, Pat Fischer, 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;
    }


    public void testConstructor() {
        CopyOnWriteArrayList a = new CopyOnWriteArrayList();
        assertTrue(a.isEmpty());
    }

    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));
    }

    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 correctly 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(3);
        full.addIfAbsent(one);
        assertEquals(3, full.size());
    }

    /**
     *   addIfAbsent correctly adds the element when it does not exist in the list
     */
    public void testAddIfAbsent2(){
        CopyOnWriteArrayList full = populatedArray(3);
        full.addIfAbsent(three);
        assertTrue(full.contains(three));
    }

    /**
     *   clear correctly removes all elements from the list
     */
    public void testClear(){
        CopyOnWriteArrayList full = populatedArray(3);
        full.clear();
        assertEquals(0, full.size());
    }

    /**
     *   contains returns the correct values 
     */
    public void testContains(){
        CopyOnWriteArrayList full = populatedArray(3);
        assertTrue(full.contains(one));
        assertFalse(full.contains(five));
    }

    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));
    }

    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 the correct values
     */
    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 correct value for the given index
     */
    public void testGet(){
        CopyOnWriteArrayList full = populatedArray(3);
        assertEquals(0, ((Integer)full.get(0)).intValue());
    }

    /**
     *   indexOf gives the correct 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 correct 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 the correct values
     */
    public void testIsEmpty(){
        CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
        CopyOnWriteArrayList full = populatedArray(3);
        assertTrue(empty.isEmpty());
        assertFalse(full.isEmpty());
    }

    /**
     *   iterator() returns an iterator containing the elements of the list 
     */
    public void testIterator(){
        CopyOnWriteArrayList full = populatedArray(3);
        Iterator i = full.iterator();
        int j;
        for(j = 0; i.hasNext(); j++)
            assertEquals(j, ((Integer)i.next()).intValue());
        assertEquals(3, j);
    }

    public void testIteratorRemove () {
        CopyOnWriteArrayList full = populatedArray(3);
        Iterator it = full.iterator();
        it.next();
        try {
            it.remove();
            fail("should throw");
        }
        catch (UnsupportedOperationException success) {}
    }

    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 correct 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 correct 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));
    }

    /**
     *  Identical to testIterator, except ListInterator has more functionality
     */
    public void testListIterator1(){
        CopyOnWriteArrayList full = populatedArray(3);
        ListIterator i = full.listIterator();
        int j;
        for(j = 0; i.hasNext(); j++)
            assertEquals(j, ((Integer)i.next()).intValue());
        assertEquals(3, j);
    }

    /**
     *  Identical to testIterator and testListIterator1, but 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 correctly 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 correctly 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 correctly 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 correct values
     */
    public void testSize(){
        CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
        CopyOnWriteArrayList full = populatedArray(3);
        assertEquals(3, 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());
    }

    /**
     *  test to verify 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());
    }


    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]);
            fail("Object[] toArray(Object[]) should throw ArrayStoreException");
        }catch(ArrayStoreException e){}
    }

    /**
     *   get throws an IndexOutOfBoundsException on a negative index
     */
    public void testGet1_IndexOutOfBoundsException(){
        try{
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.get(-1);
            fail("Object get(int) should throw IndexOutOfBounds exception");
        }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);
            fail("Object get(int) should throw IndexOutOfBounds exception");
        }catch(IndexOutOfBoundsException e){}
    }

    /**
     *   set throws an IndexOutOfBoundsException on a negative index
     */
    public void testSet1_IndexOutOfBoundsException(){
        try{
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.set(-1,"qwerty");
            fail("Object get(int, Object) should throw IndexOutOfBounds exception");
        }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");
            fail("Object set(int, Object) should throw IndexOutOfBounds exception");
        }catch(IndexOutOfBoundsException e){}
    }

    /**
     *   add throws an IndexOutOfBoundsException on a negative index
     */
    public void testAdd1_IndexOutOfBoundsException(){
        try{
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.add(-1,"qwerty");
            fail("void add(int, Object) should throw IndexOutOfBounds exception");
        }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");
            fail("void add(int, Object) should throw IndexOutOfBounds exception");
        }catch(IndexOutOfBoundsException e){}
    }

    /**
     *   remove throws an IndexOutOfBoundsException on a negative index
     */
    public void testRemove1_IndexOutOfBounds(){
        try{
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.remove(-1);
            fail("Object remove(int) should throw IndexOutOfBounds exception");
        }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);
            fail("Object remove(int) should throw IndexOutOfBounds exception");
        }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());
            fail("boolean add(int, Collection) should throw IndexOutOfBounds exception");
        }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());
            fail("boolean addAll(int, Collection) should throw IndexOutOfBounds exception");
        }catch(IndexOutOfBoundsException e){}
    }

    /**
     *   listIterator throws an IndexOutOfBoundsException on a negative index
     */
    public void testListIterator1_IndexOutOfBoundsException(){
        try{
            CopyOnWriteArrayList c = new CopyOnWriteArrayList();
            c.listIterator(-1);
            fail("ListIterator listIterator(int) should throw IndexOutOfBounds exceptione");
        }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);
            fail("ListIterator listIterator(int) should throw IndexOutOfBounds exception");
        }catch(IndexOutOfBoundsException e){}
    }

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

            fail("List subList(int, int) should throw IndexOutofBounds exception");
        }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);
            fail("List subList(int, int) should throw IndexOutofBounds exception");
        }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);

            fail("List subList(int, int) should throw IndexOutofBounds exception");
        }catch(IndexOutOfBoundsException e){}
    }

    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){
            e.printStackTrace();
            fail("unexpected exception");
        }
    }
    
}
Revision:	1.3
Committed:	Sun Sep 14 20:42:40 2003 UTC (20 years, 8 months ago) by dl
Branch:	MAIN
Changes since 1.2:	+129 -105 lines
Log Message:	New base class JSR166TestCase
#	Content
1	/*
2	* Written by members of JCP JSR-166 Expert Group and released to the
3	* public domain. Use, modify, and redistribute this code in any way
4	* without acknowledgement. Other contributors include Andrew Wright,
5	* Jeffrey Hayes, Pat Fischer, Mike Judd.
6	*/
7
8	import junit.framework.*;
9	import java.util.*;
10	import java.util.concurrent.*;
11	import java.io.*;
12
13	public class CopyOnWriteArrayListTest extends JSR166TestCase{
14
15	public static void main(String[] args) {
16	junit.textui.TestRunner.run (suite());
17	}
18
19	public static Test suite() {
20	return new TestSuite(CopyOnWriteArrayListTest.class);
21	}
22
23	static CopyOnWriteArrayList populatedArray(int n){
24	CopyOnWriteArrayList a = new CopyOnWriteArrayList();
25	assertTrue(a.isEmpty());
26	for (int i = 0; i < n; ++i)
27	a.add(new Integer(i));
28	assertFalse(a.isEmpty());
29	assertEquals(n, a.size());
30	return a;
31	}
32
33
34	public void testConstructor() {
35	CopyOnWriteArrayList a = new CopyOnWriteArrayList();
36	assertTrue(a.isEmpty());
37	}
38
39	public void testConstructor2() {
40	Integer[] ints = new Integer[SIZE];
41	for (int i = 0; i < SIZE-1; ++i)
42	ints[i] = new Integer(i);
43	CopyOnWriteArrayList a = new CopyOnWriteArrayList(ints);
44	for (int i = 0; i < SIZE; ++i)
45	assertEquals(ints[i], a.get(i));
46	}
47
48	public void testConstructor3() {
49	Integer[] ints = new Integer[SIZE];
50	for (int i = 0; i < SIZE-1; ++i)
51	ints[i] = new Integer(i);
52	CopyOnWriteArrayList a = new CopyOnWriteArrayList(Arrays.asList(ints));
53	for (int i = 0; i < SIZE; ++i)
54	assertEquals(ints[i], a.get(i));
55	}
56
57
58	/**
59	* addAll correctly adds each element from the given collection
60	*/
61	public void testAddAll(){
62	CopyOnWriteArrayList full = populatedArray(3);
63	Vector v = new Vector();
64	v.add(three);
65	v.add(four);
66	v.add(five);
67	full.addAll(v);
68	assertEquals(6, full.size());
69	}
70
71	/**
72	* addAllAbsent adds each element from the given collection that did not
73	* already exist in the List
74	*/
75	public void testAddAllAbsent(){
76	CopyOnWriteArrayList full = populatedArray(3);
77	Vector v = new Vector();
78	v.add(three);
79	v.add(four);
80	v.add(one); // will not add this element
81	full.addAllAbsent(v);
82	assertEquals(5, full.size());
83	}
84
85	/**
86	* addIfAbsent will not add the element if it already exists in the list
87	*/
88	public void testAddIfAbsent(){
89	CopyOnWriteArrayList full = populatedArray(3);
90	full.addIfAbsent(one);
91	assertEquals(3, full.size());
92	}
93
94	/**
95	* addIfAbsent correctly adds the element when it does not exist in the list
96	*/
97	public void testAddIfAbsent2(){
98	CopyOnWriteArrayList full = populatedArray(3);
99	full.addIfAbsent(three);
100	assertTrue(full.contains(three));
101	}
102
103	/**
104	* clear correctly removes all elements from the list
105	*/
106	public void testClear(){
107	CopyOnWriteArrayList full = populatedArray(3);
108	full.clear();
109	assertEquals(0, full.size());
110	}
111
112	/**
113	* contains returns the correct values
114	*/
115	public void testContains(){
116	CopyOnWriteArrayList full = populatedArray(3);
117	assertTrue(full.contains(one));
118	assertFalse(full.contains(five));
119	}
120
121	public void testAddIndex() {
122	CopyOnWriteArrayList full = populatedArray(3);
123	full.add(0, m1);
124	assertEquals(4, full.size());
125	assertEquals(m1, full.get(0));
126	assertEquals(zero, full.get(1));
127
128	full.add(2, m2);
129	assertEquals(5, full.size());
130	assertEquals(m2, full.get(2));
131	assertEquals(two, full.get(4));
132	}
133
134	public void testEquals() {
135	CopyOnWriteArrayList a = populatedArray(3);
136	CopyOnWriteArrayList b = populatedArray(3);
137	assertTrue(a.equals(b));
138	assertTrue(b.equals(a));
139	assertEquals(a.hashCode(), b.hashCode());
140	a.add(m1);
141	assertFalse(a.equals(b));
142	assertFalse(b.equals(a));
143	b.add(m1);
144	assertTrue(a.equals(b));
145	assertTrue(b.equals(a));
146	assertEquals(a.hashCode(), b.hashCode());
147	}
148
149
150	/**
151	* containsAll returns the correct values
152	*/
153	public void testContainsAll(){
154	CopyOnWriteArrayList full = populatedArray(3);
155	Vector v = new Vector();
156	v.add(one);
157	v.add(two);
158	assertTrue(full.containsAll(v));
159	v.add(six);
160	assertFalse(full.containsAll(v));
161	}
162
163	/**
164	* get returns the correct value for the given index
165	*/
166	public void testGet(){
167	CopyOnWriteArrayList full = populatedArray(3);
168	assertEquals(0, ((Integer)full.get(0)).intValue());
169	}
170
171	/**
172	* indexOf gives the correct index for the given object
173	*/
174	public void testIndexOf(){
175	CopyOnWriteArrayList full = populatedArray(3);
176	assertEquals(1, full.indexOf(one));
177	assertEquals(-1, full.indexOf("puppies"));
178	}
179
180	/**
181	* indexOf gives the correct index based on the given index
182	* at which to start searching
183	*/
184	public void testIndexOf2(){
185	CopyOnWriteArrayList full = populatedArray(3);
186	assertEquals(1, full.indexOf(one, 0));
187	assertEquals(-1, full.indexOf(one, 2));
188	}
189
190	/**
191	* isEmpty returns the correct values
192	*/
193	public void testIsEmpty(){
194	CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
195	CopyOnWriteArrayList full = populatedArray(3);
196	assertTrue(empty.isEmpty());
197	assertFalse(full.isEmpty());
198	}
199
200	/**
201	* iterator() returns an iterator containing the elements of the list
202	*/
203	public void testIterator(){
204	CopyOnWriteArrayList full = populatedArray(3);
205	Iterator i = full.iterator();
206	int j;
207	for(j = 0; i.hasNext(); j++)
208	assertEquals(j, ((Integer)i.next()).intValue());
209	assertEquals(3, j);
210	}
211
212	public void testIteratorRemove () {
213	CopyOnWriteArrayList full = populatedArray(3);
214	Iterator it = full.iterator();
215	it.next();
216	try {
217	it.remove();
218	fail("should throw");
219	}
220	catch (UnsupportedOperationException success) {}
221	}
222
223	public void testToString(){
224	CopyOnWriteArrayList full = populatedArray(3);
225	String s = full.toString();
226	for (int i = 0; i < 3; ++i) {
227	assertTrue(s.indexOf(String.valueOf(i)) >= 0);
228	}
229	}
230
231	/**
232	* lastIndexOf returns the correct index for the given object
233	*/
234	public void testLastIndexOf1(){
235	CopyOnWriteArrayList full = populatedArray(3);
236	full.add(one);
237	full.add(three);
238	assertEquals(3, full.lastIndexOf(one));
239	assertEquals(-1, full.lastIndexOf(six));
240	}
241
242	/**
243	* lastIndexOf returns the correct index from the given starting point
244	*/
245	public void testlastIndexOf2(){
246	CopyOnWriteArrayList full = populatedArray(3);
247	full.add(one);
248	full.add(three);
249	assertEquals(3, full.lastIndexOf(one, 4));
250	assertEquals(-1, full.lastIndexOf(three, 3));
251	}
252
253	/**
254	* Identical to testIterator, except ListInterator has more functionality
255	*/
256	public void testListIterator1(){
257	CopyOnWriteArrayList full = populatedArray(3);
258	ListIterator i = full.listIterator();
259	int j;
260	for(j = 0; i.hasNext(); j++)
261	assertEquals(j, ((Integer)i.next()).intValue());
262	assertEquals(3, j);
263	}
264
265	/**
266	* Identical to testIterator and testListIterator1, but only returns those elements
267	* after the given index
268	*/
269	public void testListIterator2(){
270	CopyOnWriteArrayList full = populatedArray(3);
271	ListIterator i = full.listIterator(1);
272	int j;
273	for(j = 0; i.hasNext(); j++)
274	assertEquals(j+1, ((Integer)i.next()).intValue());
275	assertEquals(2, j);
276	}
277
278	/**
279	* remove correctly removes and returns the object at the given index
280	*/
281	public void testRemove(){
282	CopyOnWriteArrayList full = populatedArray(3);
283	assertEquals(two, full.remove(2));
284	assertEquals(2, full.size());
285	}
286
287	/**
288	* removeAll correctly removes all elements from the given collection
289	*/
290	public void testRemoveAll(){
291	CopyOnWriteArrayList full = populatedArray(3);
292	Vector v = new Vector();
293	v.add(one);
294	v.add(two);
295	full.removeAll(v);
296	assertEquals(1, full.size());
297	}
298
299	/**
300	* set correctly changes the element at the given index
301	*/
302	public void testSet(){
303	CopyOnWriteArrayList full = populatedArray(3);
304	assertEquals(two, full.set(2, four));
305	assertEquals(4, ((Integer)full.get(2)).intValue());
306	}
307
308	/**
309	* size returns the correct values
310	*/
311	public void testSize(){
312	CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
313	CopyOnWriteArrayList full = populatedArray(3);
314	assertEquals(3, full.size());
315	assertEquals(0, empty.size());
316	}
317
318	/**
319	* toArray returns an Object array containing all elements from the list
320	*/
321	public void testToArray(){
322	CopyOnWriteArrayList full = populatedArray(3);
323	Object[] o = full.toArray();
324	assertEquals(3, o.length);
325	assertEquals(0, ((Integer)o[0]).intValue());
326	assertEquals(1, ((Integer)o[1]).intValue());
327	assertEquals(2, ((Integer)o[2]).intValue());
328	}
329
330	/**
331	* test to verify toArray returns an Integer array containing all elements from the list
332	*/
333	public void testToArray2(){
334	CopyOnWriteArrayList full = populatedArray(3);
335	Integer[] i = new Integer[3];
336	i = (Integer[])full.toArray(i);
337	assertEquals(3, i.length);
338	assertEquals(0, i[0].intValue());
339	assertEquals(1, i[1].intValue());
340	assertEquals(2, i[2].intValue());
341	}
342
343
344	public void testSubList() {
345	CopyOnWriteArrayList a = populatedArray(10);
346	assertTrue(a.subList(1,1).isEmpty());
347	for(int j = 0; j < 9; ++j) {
348	for(int i = j ; i < 10; ++i) {
349	List b = a.subList(j,i);
350	for(int k = j; k < i; ++k) {
351	assertEquals(new Integer(k), b.get(k-j));
352	}
353	}
354	}
355
356	List s = a.subList(2, 5);
357	assertEquals(s.size(), 3);
358	s.set(2, m1);
359	assertEquals(a.get(4), m1);
360	s.clear();
361	assertEquals(a.size(), 7);
362	}
363
364	// Exception tests
365
366	/**
367	* toArray throws an ArrayStoreException when the given array
368	* can not store the objects inside the list
369	*/
370	public void testToArray_ArrayStoreException(){
371	try{
372	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
373	c.add("zfasdfsdf");
374	c.add("asdadasd");
375	c.toArray(new Long[5]);
376	fail("Object[] toArray(Object[]) should throw ArrayStoreException");
377	}catch(ArrayStoreException e){}
378	}
379
380	/**
381	* get throws an IndexOutOfBoundsException on a negative index
382	*/
383	public void testGet1_IndexOutOfBoundsException(){
384	try{
385	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
386	c.get(-1);
387	fail("Object get(int) should throw IndexOutOfBounds exception");
388	}catch(IndexOutOfBoundsException e){}
389	}
390
391	/**
392	* get throws an IndexOutOfBoundsException on a too high index
393	*/
394	public void testGet2_IndexOutOfBoundsException(){
395	try{
396	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
397	c.add("asdasd");
398	c.add("asdad");
399	c.get(100);
400	fail("Object get(int) should throw IndexOutOfBounds exception");
401	}catch(IndexOutOfBoundsException e){}
402	}
403
404	/**
405	* set throws an IndexOutOfBoundsException on a negative index
406	*/
407	public void testSet1_IndexOutOfBoundsException(){
408	try{
409	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
410	c.set(-1,"qwerty");
411	fail("Object get(int, Object) should throw IndexOutOfBounds exception");
412	}catch(IndexOutOfBoundsException e){}
413	}
414
415	/**
416	* set throws an IndexOutOfBoundsException on a too high index
417	*/
418	public void testSet2(){
419	try{
420	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
421	c.add("asdasd");
422	c.add("asdad");
423	c.set(100, "qwerty");
424	fail("Object set(int, Object) should throw IndexOutOfBounds exception");
425	}catch(IndexOutOfBoundsException e){}
426	}
427
428	/**
429	* add throws an IndexOutOfBoundsException on a negative index
430	*/
431	public void testAdd1_IndexOutOfBoundsException(){
432	try{
433	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
434	c.add(-1,"qwerty");
435	fail("void add(int, Object) should throw IndexOutOfBounds exception");
436	}catch(IndexOutOfBoundsException e){}
437	}
438
439	/**
440	* add throws an IndexOutOfBoundsException on a too high index
441	*/
442	public void testAdd2_IndexOutOfBoundsException(){
443	try{
444	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
445	c.add("asdasd");
446	c.add("asdasdasd");
447	c.add(100, "qwerty");
448	fail("void add(int, Object) should throw IndexOutOfBounds exception");
449	}catch(IndexOutOfBoundsException e){}
450	}
451
452	/**
453	* remove throws an IndexOutOfBoundsException on a negative index
454	*/
455	public void testRemove1_IndexOutOfBounds(){
456	try{
457	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
458	c.remove(-1);
459	fail("Object remove(int) should throw IndexOutOfBounds exception");
460	}catch(IndexOutOfBoundsException e){}
461	}
462
463	/**
464	* remove throws an IndexOutOfBoundsException on a too high index
465	*/
466	public void testRemove2_IndexOutOfBounds(){
467	try{
468	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
469	c.add("asdasd");
470	c.add("adasdasd");
471	c.remove(100);
472	fail("Object remove(int) should throw IndexOutOfBounds exception");
473	}catch(IndexOutOfBoundsException e){}
474	}
475
476	/**
477	* addAll throws an IndexOutOfBoundsException on a negative index
478	*/
479	public void testAddAll1_IndexOutOfBoundsException(){
480	try{
481	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
482	c.addAll(-1,new LinkedList());
483	fail("boolean add(int, Collection) should throw IndexOutOfBounds exception");
484	}catch(IndexOutOfBoundsException e){}
485	}
486
487	/**
488	* addAll throws an IndexOutOfBoundsException on a too high index
489	*/
490	public void testAddAll2_IndexOutOfBoundsException(){
491	try{
492	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
493	c.add("asdasd");
494	c.add("asdasdasd");
495	c.addAll(100, new LinkedList());
496	fail("boolean addAll(int, Collection) should throw IndexOutOfBounds exception");
497	}catch(IndexOutOfBoundsException e){}
498	}
499
500	/**
501	* listIterator throws an IndexOutOfBoundsException on a negative index
502	*/
503	public void testListIterator1_IndexOutOfBoundsException(){
504	try{
505	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
506	c.listIterator(-1);
507	fail("ListIterator listIterator(int) should throw IndexOutOfBounds exceptione");
508	}catch(IndexOutOfBoundsException e){}
509	}
510
511	/**
512	* listIterator throws an IndexOutOfBoundsException on a too high index
513	*/
514	public void testListIterator2_IndexOutOfBoundsException(){
515	try{
516	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
517	c.add("adasd");
518	c.add("asdasdas");
519	c.listIterator(100);
520	fail("ListIterator listIterator(int) should throw IndexOutOfBounds exception");
521	}catch(IndexOutOfBoundsException e){}
522	}
523
524	/**
525	* subList throws an IndexOutOfBoundsException on a negative index
526	*/
527	public void testSubList1_IndexOutOfBoundsException(){
528	try{
529	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
530	c.subList(-1,100);
531
532	fail("List subList(int, int) should throw IndexOutofBounds exception");
533	}catch(IndexOutOfBoundsException e){}
534	}
535
536	/**
537	* subList throws an IndexOutOfBoundsException on a too high index
538	*/
539	public void testSubList2_IndexOutOfBoundsException(){
540	try{
541	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
542	c.add("asdasd");
543	c.subList(1,100);
544	fail("List subList(int, int) should throw IndexOutofBounds exception");
545	}catch(IndexOutOfBoundsException e){}
546	}
547
548	/**
549	* subList throws IndexOutOfBoundsException when the second index
550	* is lower then the first
551	*/
552	public void testSubList3_IndexOutOfBoundsException(){
553	try{
554	CopyOnWriteArrayList c = new CopyOnWriteArrayList();
555	c.subList(3,1);
556
557	fail("List subList(int, int) should throw IndexOutofBounds exception");
558	}catch(IndexOutOfBoundsException e){}
559	}
560
561	public void testSerialization() {
562	CopyOnWriteArrayList q = populatedArray(SIZE);
563
564	try {
565	ByteArrayOutputStream bout = new ByteArrayOutputStream(10000);
566	ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout));
567	out.writeObject(q);
568	out.close();
569
570	ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
571	ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin));
572	CopyOnWriteArrayList r = (CopyOnWriteArrayList)in.readObject();
573	assertEquals(q.size(), r.size());
574	assertTrue(q.equals(r));
575	assertTrue(r.equals(q));
576	} catch(Exception e){
577	e.printStackTrace();
578	fail("unexpected exception");
579	}
580	}
581
582	}