test/tck/CopyOnWriteArraySetTest.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.*;

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

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

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

    /**
     *  Test to verify addAll correctly adds each element from the given collection
     */
    public void testAddAll(){
        CopyOnWriteArraySet full = fullSet(3);
        Vector v = new Vector();
        v.add(new Integer(3));
        v.add(new Integer(4));
        v.add(new Integer(5));
        full.addAll(v);
        assertEquals(6, full.size());
    }

    /**
     *  Test to verify addAllAbsent adds each element from the given collection that did not
     *  already exist in the List
     */
    public void testAddAll2(){
        CopyOnWriteArraySet full = fullSet(3);
        Vector v = new Vector();
        v.add(new Integer(3));
        v.add(new Integer(4));
        v.add(new Integer(1)); // will not add this element
        full.addAll(v);
        assertEquals(5, full.size());
    }

    /**
     *  Test to verify addIfAbsent will not add the element if it already exists in the list
     */
    public void testAdd2(){
        CopyOnWriteArraySet full = fullSet(3);
        full.add(new Integer(1));
        assertEquals(3, full.size());
    }

    /**
     *  test to verify addIfAbsent correctly adds the element when it does not exist in the list
     */
    public void testAdd3(){
        CopyOnWriteArraySet full = fullSet(3);
        full.add(new Integer(3));
        assertTrue(full.contains(new Integer(3)));
    }

    /**
     *  Test to verify clear correctly removes all elements from the list
     */
    public void testClear(){
        CopyOnWriteArraySet full = fullSet(3);
        full.clear();
        assertEquals(0, full.size());
    }

    /**
     *  Test to verify contains returns the correct values 
     */
    public void testContains(){
        CopyOnWriteArraySet full = fullSet(3);
        assertTrue(full.contains(new Integer(1)));
        assertFalse(full.contains(new Integer(5)));
    }

    public void testEquals() {
        CopyOnWriteArraySet a = fullSet(3);
        CopyOnWriteArraySet b = fullSet(3);
        assertTrue(a.equals(b));
        assertTrue(b.equals(a));
        assertEquals(a.hashCode(), b.hashCode());
        a.add(new Integer(-1));
        assertFalse(a.equals(b));
        assertFalse(b.equals(a));
        b.add(new Integer(-1));
        assertTrue(a.equals(b));
        assertTrue(b.equals(a));
        assertEquals(a.hashCode(), b.hashCode());
    }

    
    /**
     *  Test to verify containsAll returns the correct values
     */
    public void testContainsAll(){
        CopyOnWriteArraySet full = fullSet(3);
        Vector v = new Vector();
        v.add(new Integer(1));
        v.add(new Integer(2));
        assertTrue(full.containsAll(v));
        v.add(new Integer(6));
        assertFalse(full.containsAll(v));
    }

    /**
     *  Test to verify isEmpty returns the correct values
     */
    public void testIsEmpty(){
        CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
        CopyOnWriteArraySet full = fullSet(3);
        assertTrue(empty.isEmpty());
        assertFalse(full.isEmpty());
    }

    /**
     *  Test to verify iterator() returns an iterator containing the elements of the list 
     */
    public void testIterator(){
        CopyOnWriteArraySet full = fullSet(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 () {
        CopyOnWriteArraySet full = fullSet(3);
        Iterator it = full.iterator();
        it.next();
        try {
            it.remove();
            fail("should throw");
        }
        catch (UnsupportedOperationException success) {}
    }

    public void testToString(){
        CopyOnWriteArraySet full = fullSet(3);
        String s = full.toString();
        for (int i = 0; i < 3; ++i) {
            assertTrue(s.indexOf(String.valueOf(i)) >= 0);
        }
    }        


    /**
     *  Test to verify removeAll correctly removes all elements from the given collection
     */
    public void testRemoveAll(){
        CopyOnWriteArraySet full = fullSet(3);
        Vector v = new Vector();
        v.add(new Integer(1));
        v.add(new Integer(2));
        full.removeAll(v);
        assertEquals(1, full.size());
    }


    public void testRemove(){
        CopyOnWriteArraySet full = fullSet(3);
        full.remove(new Integer(1));
        assertFalse(full.contains(new Integer(1)));
        assertEquals(2, full.size());
    }

    /**
     *  Test to verify size returns the correct values
     */
    public void testSize(){
        CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
        CopyOnWriteArraySet full = fullSet(3);
        assertEquals(3, full.size());
        assertEquals(0, empty.size());
    }

    /**
     *  Test to verify toArray returns an Object array containing all elements from the list
     */
    public void testToArray(){
        CopyOnWriteArraySet full = fullSet(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(){
        CopyOnWriteArraySet full = fullSet(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());
    }


    // Exception tests

    /**
     *  Test to verify toArray throws an ArrayStoreException when the given array
     *  can not store the objects inside the list
     */
    public void testToArray_ArrayStoreException(){
        try{
            CopyOnWriteArraySet c = new CopyOnWriteArraySet();
            c.add("zfasdfsdf");
            c.add("asdadasd");
            c.toArray(new Long[5]);
            fail("Object[] toArray(Object[]) should throw ArrayStoreException");
        }catch(ArrayStoreException e){}
    }

}
Revision:	1.1
Committed:	Sun Aug 31 19:24:54 2003 UTC (20 years, 8 months ago) by dl
Branch:	MAIN
Log Message:	First check-in of tests to be in tck
#	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
12			public class CopyOnWriteArraySetTest extends TestCase{
13
14			public static void main(String[] args) {
15			junit.textui.TestRunner.run (suite());
16			}
17
18			public static Test suite() {
19			return new TestSuite(CopyOnWriteArraySetTest.class);
20			}
21
22			static CopyOnWriteArraySet fullSet(int n){
23			CopyOnWriteArraySet a = new CopyOnWriteArraySet();
24			assertTrue(a.isEmpty());
25			for (int i = 0; i < n; ++i)
26			a.add(new Integer(i));
27			assertFalse(a.isEmpty());
28			assertEquals(n, a.size());
29			return a;
30			}
31
32			/**
33			* Test to verify addAll correctly adds each element from the given collection
34			*/
35			public void testAddAll(){
36			CopyOnWriteArraySet full = fullSet(3);
37			Vector v = new Vector();
38			v.add(new Integer(3));
39			v.add(new Integer(4));
40			v.add(new Integer(5));
41			full.addAll(v);
42			assertEquals(6, full.size());
43			}
44
45			/**
46			* Test to verify addAllAbsent adds each element from the given collection that did not
47			* already exist in the List
48			*/
49			public void testAddAll2(){
50			CopyOnWriteArraySet full = fullSet(3);
51			Vector v = new Vector();
52			v.add(new Integer(3));
53			v.add(new Integer(4));
54			v.add(new Integer(1)); // will not add this element
55			full.addAll(v);
56			assertEquals(5, full.size());
57			}
58
59			/**
60			* Test to verify addIfAbsent will not add the element if it already exists in the list
61			*/
62			public void testAdd2(){
63			CopyOnWriteArraySet full = fullSet(3);
64			full.add(new Integer(1));
65			assertEquals(3, full.size());
66			}
67
68			/**
69			* test to verify addIfAbsent correctly adds the element when it does not exist in the list
70			*/
71			public void testAdd3(){
72			CopyOnWriteArraySet full = fullSet(3);
73			full.add(new Integer(3));
74			assertTrue(full.contains(new Integer(3)));
75			}
76
77			/**
78			* Test to verify clear correctly removes all elements from the list
79			*/
80			public void testClear(){
81			CopyOnWriteArraySet full = fullSet(3);
82			full.clear();
83			assertEquals(0, full.size());
84			}
85
86			/**
87			* Test to verify contains returns the correct values
88			*/
89			public void testContains(){
90			CopyOnWriteArraySet full = fullSet(3);
91			assertTrue(full.contains(new Integer(1)));
92			assertFalse(full.contains(new Integer(5)));
93			}
94
95			public void testEquals() {
96			CopyOnWriteArraySet a = fullSet(3);
97			CopyOnWriteArraySet b = fullSet(3);
98			assertTrue(a.equals(b));
99			assertTrue(b.equals(a));
100			assertEquals(a.hashCode(), b.hashCode());
101			a.add(new Integer(-1));
102			assertFalse(a.equals(b));
103			assertFalse(b.equals(a));
104			b.add(new Integer(-1));
105			assertTrue(a.equals(b));
106			assertTrue(b.equals(a));
107			assertEquals(a.hashCode(), b.hashCode());
108			}
109
110
111			/**
112			* Test to verify containsAll returns the correct values
113			*/
114			public void testContainsAll(){
115			CopyOnWriteArraySet full = fullSet(3);
116			Vector v = new Vector();
117			v.add(new Integer(1));
118			v.add(new Integer(2));
119			assertTrue(full.containsAll(v));
120			v.add(new Integer(6));
121			assertFalse(full.containsAll(v));
122			}
123
124			/**
125			* Test to verify isEmpty returns the correct values
126			*/
127			public void testIsEmpty(){
128			CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
129			CopyOnWriteArraySet full = fullSet(3);
130			assertTrue(empty.isEmpty());
131			assertFalse(full.isEmpty());
132			}
133
134			/**
135			* Test to verify iterator() returns an iterator containing the elements of the list
136			*/
137			public void testIterator(){
138			CopyOnWriteArraySet full = fullSet(3);
139			Iterator i = full.iterator();
140			int j;
141			for(j = 0; i.hasNext(); j++)
142			assertEquals(j, ((Integer)i.next()).intValue());
143			assertEquals(3, j);
144			}
145
146			public void testIteratorRemove () {
147			CopyOnWriteArraySet full = fullSet(3);
148			Iterator it = full.iterator();
149			it.next();
150			try {
151			it.remove();
152			fail("should throw");
153			}
154			catch (UnsupportedOperationException success) {}
155			}
156
157			public void testToString(){
158			CopyOnWriteArraySet full = fullSet(3);
159			String s = full.toString();
160			for (int i = 0; i < 3; ++i) {
161			assertTrue(s.indexOf(String.valueOf(i)) >= 0);
162			}
163			}
164
165
166			/**
167			* Test to verify removeAll correctly removes all elements from the given collection
168			*/
169			public void testRemoveAll(){
170			CopyOnWriteArraySet full = fullSet(3);
171			Vector v = new Vector();
172			v.add(new Integer(1));
173			v.add(new Integer(2));
174			full.removeAll(v);
175			assertEquals(1, full.size());
176			}
177
178
179			public void testRemove(){
180			CopyOnWriteArraySet full = fullSet(3);
181			full.remove(new Integer(1));
182			assertFalse(full.contains(new Integer(1)));
183			assertEquals(2, full.size());
184			}
185
186			/**
187			* Test to verify size returns the correct values
188			*/
189			public void testSize(){
190			CopyOnWriteArraySet empty = new CopyOnWriteArraySet();
191			CopyOnWriteArraySet full = fullSet(3);
192			assertEquals(3, full.size());
193			assertEquals(0, empty.size());
194			}
195
196			/**
197			* Test to verify toArray returns an Object array containing all elements from the list
198			*/
199			public void testToArray(){
200			CopyOnWriteArraySet full = fullSet(3);
201			Object[] o = full.toArray();
202			assertEquals(3, o.length);
203			assertEquals(0, ((Integer)o[0]).intValue());
204			assertEquals(1, ((Integer)o[1]).intValue());
205			assertEquals(2, ((Integer)o[2]).intValue());
206			}
207
208			/**
209			* test to verify toArray returns an Integer array containing all elements from the list
210			*/
211			public void testToArray2(){
212			CopyOnWriteArraySet full = fullSet(3);
213			Integer[] i = new Integer[3];
214			i = (Integer[])full.toArray(i);
215			assertEquals(3, i.length);
216			assertEquals(0, i[0].intValue());
217			assertEquals(1, i[1].intValue());
218			assertEquals(2, i[2].intValue());
219			}
220
221
222
223			// Exception tests
224
225			/**
226			* Test to verify toArray throws an ArrayStoreException when the given array
227			* can not store the objects inside the list
228			*/
229			public void testToArray_ArrayStoreException(){
230			try{
231			CopyOnWriteArraySet c = new CopyOnWriteArraySet();
232			c.add("zfasdfsdf");
233			c.add("asdadasd");
234			c.toArray(new Long[5]);
235			fail("Object[] toArray(Object[]) should throw ArrayStoreException");
236			}catch(ArrayStoreException e){}
237			}
238
239			}