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
#	User	Rev	Content
1	dl	1.1	/*
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	dl	1.2	import java.io.*;
12	dl	1.1
13	dl	1.3	public class CopyOnWriteArrayListTest extends JSR166TestCase{
14	dl	1.1
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	dl	1.3	static CopyOnWriteArrayList populatedArray(int n){
24	dl	1.1	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	dl	1.3
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	dl	1.1	/**
59	dl	1.3	* addAll correctly adds each element from the given collection
60	dl	1.1	*/
61			public void testAddAll(){
62	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
63	dl	1.1	Vector v = new Vector();
64	dl	1.3	v.add(three);
65			v.add(four);
66			v.add(five);
67	dl	1.1	full.addAll(v);
68			assertEquals(6, full.size());
69			}
70
71			/**
72	dl	1.3	* addAllAbsent adds each element from the given collection that did not
73	dl	1.1	* already exist in the List
74			*/
75			public void testAddAllAbsent(){
76	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
77	dl	1.1	Vector v = new Vector();
78	dl	1.3	v.add(three);
79			v.add(four);
80			v.add(one); // will not add this element
81	dl	1.1	full.addAllAbsent(v);
82			assertEquals(5, full.size());
83			}
84
85			/**
86	dl	1.3	* addIfAbsent will not add the element if it already exists in the list
87	dl	1.1	*/
88			public void testAddIfAbsent(){
89	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
90			full.addIfAbsent(one);
91	dl	1.1	assertEquals(3, full.size());
92			}
93
94			/**
95	dl	1.3	* addIfAbsent correctly adds the element when it does not exist in the list
96	dl	1.1	*/
97			public void testAddIfAbsent2(){
98	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
99			full.addIfAbsent(three);
100			assertTrue(full.contains(three));
101	dl	1.1	}
102
103			/**
104	dl	1.3	* clear correctly removes all elements from the list
105	dl	1.1	*/
106			public void testClear(){
107	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
108	dl	1.1	full.clear();
109			assertEquals(0, full.size());
110			}
111
112			/**
113	dl	1.3	* contains returns the correct values
114	dl	1.1	*/
115			public void testContains(){
116	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
117			assertTrue(full.contains(one));
118			assertFalse(full.contains(five));
119	dl	1.1	}
120
121			public void testAddIndex() {
122	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
123			full.add(0, m1);
124	dl	1.1	assertEquals(4, full.size());
125	dl	1.3	assertEquals(m1, full.get(0));
126			assertEquals(zero, full.get(1));
127	dl	1.1
128	dl	1.3	full.add(2, m2);
129	dl	1.1	assertEquals(5, full.size());
130	dl	1.3	assertEquals(m2, full.get(2));
131			assertEquals(two, full.get(4));
132	dl	1.1	}
133
134			public void testEquals() {
135	dl	1.3	CopyOnWriteArrayList a = populatedArray(3);
136			CopyOnWriteArrayList b = populatedArray(3);
137	dl	1.1	assertTrue(a.equals(b));
138			assertTrue(b.equals(a));
139			assertEquals(a.hashCode(), b.hashCode());
140	dl	1.3	a.add(m1);
141	dl	1.1	assertFalse(a.equals(b));
142			assertFalse(b.equals(a));
143	dl	1.3	b.add(m1);
144	dl	1.1	assertTrue(a.equals(b));
145			assertTrue(b.equals(a));
146			assertEquals(a.hashCode(), b.hashCode());
147			}
148
149
150			/**
151	dl	1.3	* containsAll returns the correct values
152	dl	1.1	*/
153			public void testContainsAll(){
154	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
155	dl	1.1	Vector v = new Vector();
156	dl	1.3	v.add(one);
157			v.add(two);
158	dl	1.1	assertTrue(full.containsAll(v));
159	dl	1.3	v.add(six);
160	dl	1.1	assertFalse(full.containsAll(v));
161			}
162
163			/**
164	dl	1.3	* get returns the correct value for the given index
165	dl	1.1	*/
166			public void testGet(){
167	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
168	dl	1.1	assertEquals(0, ((Integer)full.get(0)).intValue());
169			}
170
171			/**
172	dl	1.3	* indexOf gives the correct index for the given object
173	dl	1.1	*/
174			public void testIndexOf(){
175	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
176			assertEquals(1, full.indexOf(one));
177	dl	1.1	assertEquals(-1, full.indexOf("puppies"));
178			}
179
180			/**
181	dl	1.3	* indexOf gives the correct index based on the given index
182	dl	1.1	* at which to start searching
183			*/
184			public void testIndexOf2(){
185	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
186			assertEquals(1, full.indexOf(one, 0));
187			assertEquals(-1, full.indexOf(one, 2));
188	dl	1.1	}
189
190			/**
191	dl	1.3	* isEmpty returns the correct values
192	dl	1.1	*/
193			public void testIsEmpty(){
194			CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
195	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
196	dl	1.1	assertTrue(empty.isEmpty());
197			assertFalse(full.isEmpty());
198			}
199
200			/**
201	dl	1.3	* iterator() returns an iterator containing the elements of the list
202	dl	1.1	*/
203			public void testIterator(){
204	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
205	dl	1.1	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	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
214	dl	1.1	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	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
225	dl	1.1	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	dl	1.3	* lastIndexOf returns the correct index for the given object
233	dl	1.1	*/
234			public void testLastIndexOf1(){
235	dl	1.3	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	dl	1.1	}
241
242			/**
243	dl	1.3	* lastIndexOf returns the correct index from the given starting point
244	dl	1.1	*/
245			public void testlastIndexOf2(){
246	dl	1.3	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	dl	1.1	}
252
253			/**
254			* Identical to testIterator, except ListInterator has more functionality
255			*/
256			public void testListIterator1(){
257	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
258	dl	1.1	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	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
271	dl	1.1	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	dl	1.3	* remove correctly removes and returns the object at the given index
280	dl	1.1	*/
281			public void testRemove(){
282	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
283			assertEquals(two, full.remove(2));
284	dl	1.1	assertEquals(2, full.size());
285			}
286
287			/**
288	dl	1.3	* removeAll correctly removes all elements from the given collection
289	dl	1.1	*/
290			public void testRemoveAll(){
291	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
292	dl	1.1	Vector v = new Vector();
293	dl	1.3	v.add(one);
294			v.add(two);
295	dl	1.1	full.removeAll(v);
296			assertEquals(1, full.size());
297			}
298
299			/**
300	dl	1.3	* set correctly changes the element at the given index
301	dl	1.1	*/
302			public void testSet(){
303	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
304			assertEquals(two, full.set(2, four));
305	dl	1.1	assertEquals(4, ((Integer)full.get(2)).intValue());
306			}
307
308			/**
309	dl	1.3	* size returns the correct values
310	dl	1.1	*/
311			public void testSize(){
312			CopyOnWriteArrayList empty = new CopyOnWriteArrayList();
313	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
314	dl	1.1	assertEquals(3, full.size());
315			assertEquals(0, empty.size());
316			}
317
318			/**
319	dl	1.3	* toArray returns an Object array containing all elements from the list
320	dl	1.1	*/
321			public void testToArray(){
322	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
323	dl	1.1	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	dl	1.3	CopyOnWriteArrayList full = populatedArray(3);
335	dl	1.1	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	dl	1.3	CopyOnWriteArrayList a = populatedArray(10);
346	dl	1.1	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	dl	1.3	s.set(2, m1);
359	dl	1.1	assertEquals(a.get(4), m1);
360			s.clear();
361			assertEquals(a.size(), 7);
362			}
363
364			// Exception tests
365
366			/**
367	dl	1.3	* toArray throws an ArrayStoreException when the given array
368	dl	1.1	* 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	dl	1.3	* get throws an IndexOutOfBoundsException on a negative index
382	dl	1.1	*/
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	dl	1.3	* get throws an IndexOutOfBoundsException on a too high index
393	dl	1.1	*/
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	dl	1.3	* set throws an IndexOutOfBoundsException on a negative index
406	dl	1.1	*/
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	dl	1.3	* set throws an IndexOutOfBoundsException on a too high index
417	dl	1.1	*/
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	dl	1.3	* add throws an IndexOutOfBoundsException on a negative index
430	dl	1.1	*/
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	dl	1.3	* add throws an IndexOutOfBoundsException on a too high index
441	dl	1.1	*/
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	dl	1.3	* remove throws an IndexOutOfBoundsException on a negative index
454	dl	1.1	*/
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	dl	1.3	* remove throws an IndexOutOfBoundsException on a too high index
465	dl	1.1	*/
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	dl	1.3	* addAll throws an IndexOutOfBoundsException on a negative index
478	dl	1.1	*/
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	dl	1.3	* addAll throws an IndexOutOfBoundsException on a too high index
489	dl	1.1	*/
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	dl	1.3	* listIterator throws an IndexOutOfBoundsException on a negative index
502	dl	1.1	*/
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	dl	1.3	* listIterator throws an IndexOutOfBoundsException on a too high index
513	dl	1.1	*/
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	dl	1.3	* subList throws an IndexOutOfBoundsException on a negative index
526	dl	1.1	*/
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	dl	1.3	* subList throws an IndexOutOfBoundsException on a too high index
538	dl	1.1	*/
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	dl	1.3	* subList throws IndexOutOfBoundsException when the second index
550	dl	1.1	* 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	dl	1.2	}
560
561			public void testSerialization() {
562	dl	1.3	CopyOnWriteArrayList q = populatedArray(SIZE);
563	dl	1.2
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	dl	1.1	}
581
582			}