test/tck/VectorTest.java

/*
 * Written by Doug Lea and Martin Buchholz with assistance from
 * members of JCP JSR-166 Expert Group and released to the public
 * domain, as explained at
 * http://creativecommons.org/publicdomain/zero/1.0/
 */

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Vector;
import java.util.concurrent.ThreadLocalRandom;

import junit.framework.Test;

public class VectorTest extends JSR166TestCase {
    public static void main(String[] args) {
        main(suite(), args);
    }

    public static Test suite() {
        class Implementation implements CollectionImplementation {
            public Class<?> klazz() { return Vector.class; }
            public List emptyCollection() { return new Vector(); }
            public Object makeElement(int i) { return i; }
            public boolean isConcurrent() { return false; }
            public boolean permitsNulls() { return true; }
        }
        class SubListImplementation extends Implementation {
            public List emptyCollection() {
                return super.emptyCollection().subList(0, 0);
            }
        }
        return newTestSuite(
                VectorTest.class,
                CollectionTest.testSuite(new Implementation()),
                CollectionTest.testSuite(new SubListImplementation()));
    }

    static Vector<Integer> populatedList(int n) {
        Vector<Integer> list = new Vector<>();
        assertTrue(list.isEmpty());
        for (int i = 0; i < n; i++)
            list.add(i);
        assertEquals(n <= 0, list.isEmpty());
        assertEquals(n, list.size());
        return list;
    }

    /**
     * addAll adds each element from the given collection, including duplicates
     */
    public void testAddAll() {
        List list = populatedList(3);
        assertTrue(list.addAll(Arrays.asList(three, four, five)));
        assertEquals(6, list.size());
        assertTrue(list.addAll(Arrays.asList(three, four, five)));
        assertEquals(9, list.size());
    }

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

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

    /**
     * contains is true for added elements
     */
    public void testContains() {
        List list = populatedList(3);
        assertTrue(list.contains(one));
        assertFalse(list.contains(five));
    }

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

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

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

        assertFalse(a.equals(null));
    }

    /**
     * containsAll returns true for collections with subset of elements
     */
    public void testContainsAll() {
        List list = populatedList(3);
        assertTrue(list.containsAll(Arrays.asList()));
        assertTrue(list.containsAll(Arrays.asList(one)));
        assertTrue(list.containsAll(Arrays.asList(one, two)));
        assertFalse(list.containsAll(Arrays.asList(one, two, six)));
        assertFalse(list.containsAll(Arrays.asList(six)));

        try {
            list.containsAll(null);
            shouldThrow();
        } catch (NullPointerException success) {}
    }

    /**
     * get returns the value at the given index
     */
    public void testGet() {
        List list = populatedList(3);
        assertEquals(0, list.get(0));
    }

    /**
     * indexOf(Object) returns the index of the first occurrence of the
     * specified element in this list, or -1 if this list does not
     * contain the element
     */
    public void testIndexOf() {
        List list = populatedList(3);
        assertEquals(-1, list.indexOf(-42));
        int size = list.size();
        for (int i = 0; i < size; i++) {
            assertEquals(i, list.indexOf(i));
            assertEquals(i, list.subList(0, size).indexOf(i));
            assertEquals(i, list.subList(0, i + 1).indexOf(i));
            assertEquals(-1, list.subList(0, i).indexOf(i));
            assertEquals(0, list.subList(i, size).indexOf(i));
            assertEquals(-1, list.subList(i + 1, size).indexOf(i));
        }

        list.add(1);
        assertEquals(1, list.indexOf(1));
        assertEquals(1, list.subList(0, size + 1).indexOf(1));
        assertEquals(0, list.subList(1, size + 1).indexOf(1));
        assertEquals(size - 2, list.subList(2, size + 1).indexOf(1));
        assertEquals(0, list.subList(size, size + 1).indexOf(1));
        assertEquals(-1, list.subList(size + 1, size + 1).indexOf(1));
    }

    /**
     * indexOf(E, int) returns the index of the first occurrence of the
     * specified element in this list, searching forwards from index,
     * or returns -1 if the element is not found
     */
    public void testIndexOf2() {
        Vector list = populatedList(3);
        int size = list.size();
        assertEquals(-1, list.indexOf(-42, 0));

        // we might expect IOOBE, but spec says otherwise
        assertEquals(-1, list.indexOf(0, size));
        assertEquals(-1, list.indexOf(0, Integer.MAX_VALUE));

        assertThrows(
            IndexOutOfBoundsException.class,
            () -> list.indexOf(0, -1),
            () -> list.indexOf(0, Integer.MIN_VALUE));

        for (int i = 0; i < size; i++) {
            assertEquals(i, list.indexOf(i, 0));
            assertEquals(i, list.indexOf(i, i));
            assertEquals(-1, list.indexOf(i, i + 1));
        }

        list.add(1);
        assertEquals(1, list.indexOf(1, 0));
        assertEquals(1, list.indexOf(1, 1));
        assertEquals(size, list.indexOf(1, 2));
        assertEquals(size, list.indexOf(1, size));
    }

    /**
     * isEmpty returns true when empty, else false
     */
    public void testIsEmpty() {
        List empty = new Vector();
        assertTrue(empty.isEmpty());
        assertTrue(empty.subList(0, 0).isEmpty());

        List full = populatedList(SIZE);
        assertFalse(full.isEmpty());
        assertTrue(full.subList(0, 0).isEmpty());
        assertTrue(full.subList(SIZE, SIZE).isEmpty());
    }

    /**
     * iterator of empty collection has no elements
     */
    public void testEmptyIterator() {
        Collection c = new Vector();
        assertIteratorExhausted(c.iterator());
    }

    /**
     * lastIndexOf(Object) returns the index of the last occurrence of
     * the specified element in this list, or -1 if this list does not
     * contain the element
     */
    public void testLastIndexOf1() {
        List list = populatedList(3);
        assertEquals(-1, list.lastIndexOf(-42));
        int size = list.size();
        for (int i = 0; i < size; i++) {
            assertEquals(i, list.lastIndexOf(i));
            assertEquals(i, list.subList(0, size).lastIndexOf(i));
            assertEquals(i, list.subList(0, i + 1).lastIndexOf(i));
            assertEquals(-1, list.subList(0, i).lastIndexOf(i));
            assertEquals(0, list.subList(i, size).lastIndexOf(i));
            assertEquals(-1, list.subList(i + 1, size).lastIndexOf(i));
        }

        list.add(1);
        assertEquals(size, list.lastIndexOf(1));
        assertEquals(size, list.subList(0, size + 1).lastIndexOf(1));
        assertEquals(1, list.subList(0, size).lastIndexOf(1));
        assertEquals(0, list.subList(1, 2).lastIndexOf(1));
        assertEquals(-1, list.subList(0, 1).indexOf(1));
    }

    /**
     * lastIndexOf(E, int) returns the index of the last occurrence of the
     * specified element in this list, searching backwards from index, or
     * returns -1 if the element is not found
     */
    public void testLastIndexOf2() {
        Vector list = populatedList(3);

        // we might expect IOOBE, but spec says otherwise
        assertEquals(-1, list.lastIndexOf(0, -1));

        int size = list.size();
        assertThrows(
            IndexOutOfBoundsException.class,
            () -> list.lastIndexOf(0, size),
            () -> list.lastIndexOf(0, Integer.MAX_VALUE));

        for (int i = 0; i < size; i++) {
            assertEquals(i, list.lastIndexOf(i, i));
            assertEquals(list.indexOf(i), list.lastIndexOf(i, i));
            if (i > 0)
                assertEquals(-1, list.lastIndexOf(i, i - 1));
        }
        list.add(one);
        list.add(three);
        assertEquals(1, list.lastIndexOf(one, 1));
        assertEquals(1, list.lastIndexOf(one, 2));
        assertEquals(3, list.lastIndexOf(one, 3));
        assertEquals(3, list.lastIndexOf(one, 4));
        assertEquals(-1, list.lastIndexOf(three, 3));
    }

    /**
     * size returns the number of elements
     */
    public void testSize() {
        List empty = new Vector();
        assertEquals(0, empty.size());
        assertEquals(0, empty.subList(0, 0).size());

        List full = populatedList(SIZE);
        assertEquals(SIZE, full.size());
        assertEquals(0, full.subList(0, 0).size());
        assertEquals(0, full.subList(SIZE, SIZE).size());
    }

    /**
     * sublists contains elements at indexes offset from their base
     */
    public void testSubList() {
        List a = populatedList(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(3, s.size());
        s.set(2, m1);
        assertEquals(a.get(4), m1);
        s.clear();
        assertEquals(7, a.size());

        assertThrows(
            IndexOutOfBoundsException.class,
            () -> s.get(0),
            () -> s.set(0, 42));
    }

    /**
     * toArray throws an ArrayStoreException when the given array
     * can not store the objects inside the list
     */
    public void testToArray_ArrayStoreException() {
        List list = new Vector();
        // Integers are not auto-converted to Longs
        list.add(86);
        list.add(99);
        assertThrows(
            ArrayStoreException.class,
            () -> list.toArray(new Long[0]),
            () -> list.toArray(new Long[5]));
    }

    void testIndexOutOfBoundsException(List list) {
        int size = list.size();
        assertThrows(
            IndexOutOfBoundsException.class,
            () -> list.get(-1),
            () -> list.get(size),
            () -> list.set(-1, "qwerty"),
            () -> list.set(size, "qwerty"),
            () -> list.add(-1, "qwerty"),
            () -> list.add(size + 1, "qwerty"),
            () -> list.remove(-1),
            () -> list.remove(size),
            () -> list.addAll(-1, Collections.emptyList()),
            () -> list.addAll(size + 1, Collections.emptyList()),
            () -> list.listIterator(-1),
            () -> list.listIterator(size + 1),
            () -> list.subList(-1, size),
            () -> list.subList(0, size + 1));

        // Conversely, operations that must not throw
        list.addAll(0, Collections.emptyList());
        list.addAll(size, Collections.emptyList());
        list.add(0, "qwerty");
        list.add(list.size(), "qwerty");
        list.get(0);
        list.get(list.size() - 1);
        list.set(0, "azerty");
        list.set(list.size() - 1, "azerty");
        list.listIterator(0);
        list.listIterator(list.size());
        list.subList(0, list.size());
        list.remove(list.size() - 1);
    }

    /**
     * IndexOutOfBoundsException is thrown when specified
     */
    public void testIndexOutOfBoundsException() {
        ThreadLocalRandom rnd = ThreadLocalRandom.current();
        List x = populatedList(rnd.nextInt(5));
        testIndexOutOfBoundsException(x);

        int start = rnd.nextInt(x.size() + 1);
        int end = rnd.nextInt(start, x.size() + 1);

        // Vector#subList spec deviates slightly from List#subList spec
        assertThrows(
            IllegalArgumentException.class,
            () -> x.subList(start, start - 1));

        List subList = x.subList(start, end);
        testIndexOutOfBoundsException(x);
    }

    /**
     * a deserialized/reserialized list equals original
     */
    public void testSerialization() throws Exception {
        List x = populatedList(SIZE);
        List y = serialClone(x);

        assertNotSame(x, y);
        assertEquals(x.size(), y.size());
        assertEquals(x.toString(), y.toString());
        assertTrue(Arrays.equals(x.toArray(), y.toArray()));
        assertEquals(x, y);
        assertEquals(y, x);
        while (!x.isEmpty()) {
            assertFalse(y.isEmpty());
            assertEquals(x.remove(0), y.remove(0));
        }
        assertTrue(y.isEmpty());
    }

    /**
     * tests for setSize()
     */
    public void testSetSize() {
        final Vector v = new Vector();
        for (int n : new int[] { 100, 5, 50 }) {
            v.setSize(n);
            assertEquals(n, v.size());
            assertNull(v.get(0));
            assertNull(v.get(n - 1));
            assertThrows(
                    ArrayIndexOutOfBoundsException.class,
                    new Runnable() { public void run() { v.setSize(-1); }});
            assertEquals(n, v.size());
            assertNull(v.get(0));
            assertNull(v.get(n - 1));
        }
    }

}
Revision:	1.7
Committed:	Tue Apr 3 00:59:22 2018 UTC (6 years, 1 month ago) by jsr166
Branch:	MAIN
Changes since 1.6:	+393 -1 lines
Log Message:	port CopyOnWriteArrayListTest tests to also test Vector
#	User	Rev	Content
1	jsr166	1.1	/*
2			* Written by Doug Lea and Martin Buchholz with assistance from
3			* members of JCP JSR-166 Expert Group and released to the public
4			* domain, as explained at
5			* http://creativecommons.org/publicdomain/zero/1.0/
6			*/
7
8	jsr166	1.7	import java.util.ArrayList;
9			import java.util.Arrays;
10			import java.util.Collection;
11			import java.util.Collections;
12			import java.util.List;
13	jsr166	1.1	import java.util.Vector;
14	jsr166	1.7	import java.util.concurrent.ThreadLocalRandom;
15	jsr166	1.1
16			import junit.framework.Test;
17
18			public class VectorTest extends JSR166TestCase {
19			public static void main(String[] args) {
20			main(suite(), args);
21			}
22
23			public static Test suite() {
24			class Implementation implements CollectionImplementation {
25			public Class<?> klazz() { return Vector.class; }
26	jsr166	1.2	public List emptyCollection() { return new Vector(); }
27	jsr166	1.1	public Object makeElement(int i) { return i; }
28			public boolean isConcurrent() { return false; }
29			public boolean permitsNulls() { return true; }
30			}
31	jsr166	1.2	class SubListImplementation extends Implementation {
32			public List emptyCollection() {
33			return super.emptyCollection().subList(0, 0);
34			}
35			}
36			return newTestSuite(
37	jsr166	1.3	VectorTest.class,
38	jsr166	1.2	CollectionTest.testSuite(new Implementation()),
39			CollectionTest.testSuite(new SubListImplementation()));
40	jsr166	1.1	}
41
42	jsr166	1.7	static Vector<Integer> populatedList(int n) {
43			Vector<Integer> list = new Vector<>();
44			assertTrue(list.isEmpty());
45			for (int i = 0; i < n; i++)
46			list.add(i);
47			assertEquals(n <= 0, list.isEmpty());
48			assertEquals(n, list.size());
49			return list;
50			}
51
52			/**
53			* addAll adds each element from the given collection, including duplicates
54			*/
55			public void testAddAll() {
56			List list = populatedList(3);
57			assertTrue(list.addAll(Arrays.asList(three, four, five)));
58			assertEquals(6, list.size());
59			assertTrue(list.addAll(Arrays.asList(three, four, five)));
60			assertEquals(9, list.size());
61			}
62
63			/**
64			* clear removes all elements from the list
65			*/
66			public void testClear() {
67			List list = populatedList(SIZE);
68			list.clear();
69			assertEquals(0, list.size());
70			}
71
72			/**
73			* Cloned list is equal
74			*/
75			public void testClone() {
76			Vector l1 = populatedList(SIZE);
77			Vector l2 = (Vector)(l1.clone());
78			assertEquals(l1, l2);
79			l1.clear();
80			assertFalse(l1.equals(l2));
81			}
82
83			/**
84			* contains is true for added elements
85			*/
86			public void testContains() {
87			List list = populatedList(3);
88			assertTrue(list.contains(one));
89			assertFalse(list.contains(five));
90			}
91
92			/**
93			* adding at an index places it in the indicated index
94			*/
95			public void testAddIndex() {
96			List list = populatedList(3);
97			list.add(0, m1);
98			assertEquals(4, list.size());
99			assertEquals(m1, list.get(0));
100			assertEquals(zero, list.get(1));
101
102			list.add(2, m2);
103			assertEquals(5, list.size());
104			assertEquals(m2, list.get(2));
105			assertEquals(two, list.get(4));
106			}
107
108			/**
109			* lists with same elements are equal and have same hashCode
110			*/
111			public void testEquals() {
112			List a = populatedList(3);
113			List b = populatedList(3);
114			assertTrue(a.equals(b));
115			assertTrue(b.equals(a));
116			assertTrue(a.containsAll(b));
117			assertTrue(b.containsAll(a));
118			assertEquals(a.hashCode(), b.hashCode());
119			a.add(m1);
120			assertFalse(a.equals(b));
121			assertFalse(b.equals(a));
122			assertTrue(a.containsAll(b));
123			assertFalse(b.containsAll(a));
124			b.add(m1);
125			assertTrue(a.equals(b));
126			assertTrue(b.equals(a));
127			assertTrue(a.containsAll(b));
128			assertTrue(b.containsAll(a));
129			assertEquals(a.hashCode(), b.hashCode());
130
131			assertFalse(a.equals(null));
132			}
133
134			/**
135			* containsAll returns true for collections with subset of elements
136			*/
137			public void testContainsAll() {
138			List list = populatedList(3);
139			assertTrue(list.containsAll(Arrays.asList()));
140			assertTrue(list.containsAll(Arrays.asList(one)));
141			assertTrue(list.containsAll(Arrays.asList(one, two)));
142			assertFalse(list.containsAll(Arrays.asList(one, two, six)));
143			assertFalse(list.containsAll(Arrays.asList(six)));
144
145			try {
146			list.containsAll(null);
147			shouldThrow();
148			} catch (NullPointerException success) {}
149			}
150
151			/**
152			* get returns the value at the given index
153			*/
154			public void testGet() {
155			List list = populatedList(3);
156			assertEquals(0, list.get(0));
157			}
158
159			/**
160			* indexOf(Object) returns the index of the first occurrence of the
161			* specified element in this list, or -1 if this list does not
162			* contain the element
163			*/
164			public void testIndexOf() {
165			List list = populatedList(3);
166			assertEquals(-1, list.indexOf(-42));
167			int size = list.size();
168			for (int i = 0; i < size; i++) {
169			assertEquals(i, list.indexOf(i));
170			assertEquals(i, list.subList(0, size).indexOf(i));
171			assertEquals(i, list.subList(0, i + 1).indexOf(i));
172			assertEquals(-1, list.subList(0, i).indexOf(i));
173			assertEquals(0, list.subList(i, size).indexOf(i));
174			assertEquals(-1, list.subList(i + 1, size).indexOf(i));
175			}
176
177			list.add(1);
178			assertEquals(1, list.indexOf(1));
179			assertEquals(1, list.subList(0, size + 1).indexOf(1));
180			assertEquals(0, list.subList(1, size + 1).indexOf(1));
181			assertEquals(size - 2, list.subList(2, size + 1).indexOf(1));
182			assertEquals(0, list.subList(size, size + 1).indexOf(1));
183			assertEquals(-1, list.subList(size + 1, size + 1).indexOf(1));
184			}
185
186			/**
187			* indexOf(E, int) returns the index of the first occurrence of the
188			* specified element in this list, searching forwards from index,
189			* or returns -1 if the element is not found
190			*/
191			public void testIndexOf2() {
192			Vector list = populatedList(3);
193			int size = list.size();
194			assertEquals(-1, list.indexOf(-42, 0));
195
196			// we might expect IOOBE, but spec says otherwise
197			assertEquals(-1, list.indexOf(0, size));
198			assertEquals(-1, list.indexOf(0, Integer.MAX_VALUE));
199
200			assertThrows(
201			IndexOutOfBoundsException.class,
202			() -> list.indexOf(0, -1),
203			() -> list.indexOf(0, Integer.MIN_VALUE));
204
205			for (int i = 0; i < size; i++) {
206			assertEquals(i, list.indexOf(i, 0));
207			assertEquals(i, list.indexOf(i, i));
208			assertEquals(-1, list.indexOf(i, i + 1));
209			}
210
211			list.add(1);
212			assertEquals(1, list.indexOf(1, 0));
213			assertEquals(1, list.indexOf(1, 1));
214			assertEquals(size, list.indexOf(1, 2));
215			assertEquals(size, list.indexOf(1, size));
216			}
217
218			/**
219			* isEmpty returns true when empty, else false
220			*/
221			public void testIsEmpty() {
222			List empty = new Vector();
223			assertTrue(empty.isEmpty());
224			assertTrue(empty.subList(0, 0).isEmpty());
225
226			List full = populatedList(SIZE);
227			assertFalse(full.isEmpty());
228			assertTrue(full.subList(0, 0).isEmpty());
229			assertTrue(full.subList(SIZE, SIZE).isEmpty());
230			}
231
232			/**
233			* iterator of empty collection has no elements
234			*/
235			public void testEmptyIterator() {
236			Collection c = new Vector();
237			assertIteratorExhausted(c.iterator());
238			}
239
240			/**
241			* lastIndexOf(Object) returns the index of the last occurrence of
242			* the specified element in this list, or -1 if this list does not
243			* contain the element
244			*/
245			public void testLastIndexOf1() {
246			List list = populatedList(3);
247			assertEquals(-1, list.lastIndexOf(-42));
248			int size = list.size();
249			for (int i = 0; i < size; i++) {
250			assertEquals(i, list.lastIndexOf(i));
251			assertEquals(i, list.subList(0, size).lastIndexOf(i));
252			assertEquals(i, list.subList(0, i + 1).lastIndexOf(i));
253			assertEquals(-1, list.subList(0, i).lastIndexOf(i));
254			assertEquals(0, list.subList(i, size).lastIndexOf(i));
255			assertEquals(-1, list.subList(i + 1, size).lastIndexOf(i));
256			}
257
258			list.add(1);
259			assertEquals(size, list.lastIndexOf(1));
260			assertEquals(size, list.subList(0, size + 1).lastIndexOf(1));
261			assertEquals(1, list.subList(0, size).lastIndexOf(1));
262			assertEquals(0, list.subList(1, 2).lastIndexOf(1));
263			assertEquals(-1, list.subList(0, 1).indexOf(1));
264			}
265
266			/**
267			* lastIndexOf(E, int) returns the index of the last occurrence of the
268			* specified element in this list, searching backwards from index, or
269			* returns -1 if the element is not found
270			*/
271			public void testLastIndexOf2() {
272			Vector list = populatedList(3);
273
274			// we might expect IOOBE, but spec says otherwise
275			assertEquals(-1, list.lastIndexOf(0, -1));
276
277			int size = list.size();
278			assertThrows(
279			IndexOutOfBoundsException.class,
280			() -> list.lastIndexOf(0, size),
281			() -> list.lastIndexOf(0, Integer.MAX_VALUE));
282
283			for (int i = 0; i < size; i++) {
284			assertEquals(i, list.lastIndexOf(i, i));
285			assertEquals(list.indexOf(i), list.lastIndexOf(i, i));
286			if (i > 0)
287			assertEquals(-1, list.lastIndexOf(i, i - 1));
288			}
289			list.add(one);
290			list.add(three);
291			assertEquals(1, list.lastIndexOf(one, 1));
292			assertEquals(1, list.lastIndexOf(one, 2));
293			assertEquals(3, list.lastIndexOf(one, 3));
294			assertEquals(3, list.lastIndexOf(one, 4));
295			assertEquals(-1, list.lastIndexOf(three, 3));
296			}
297
298			/**
299			* size returns the number of elements
300			*/
301			public void testSize() {
302			List empty = new Vector();
303			assertEquals(0, empty.size());
304			assertEquals(0, empty.subList(0, 0).size());
305
306			List full = populatedList(SIZE);
307			assertEquals(SIZE, full.size());
308			assertEquals(0, full.subList(0, 0).size());
309			assertEquals(0, full.subList(SIZE, SIZE).size());
310			}
311
312			/**
313			* sublists contains elements at indexes offset from their base
314			*/
315			public void testSubList() {
316			List a = populatedList(10);
317			assertTrue(a.subList(1,1).isEmpty());
318			for (int j = 0; j < 9; ++j) {
319			for (int i = j ; i < 10; ++i) {
320			List b = a.subList(j,i);
321			for (int k = j; k < i; ++k) {
322			assertEquals(new Integer(k), b.get(k-j));
323			}
324			}
325			}
326
327			List s = a.subList(2, 5);
328			assertEquals(3, s.size());
329			s.set(2, m1);
330			assertEquals(a.get(4), m1);
331			s.clear();
332			assertEquals(7, a.size());
333
334			assertThrows(
335			IndexOutOfBoundsException.class,
336			() -> s.get(0),
337			() -> s.set(0, 42));
338			}
339
340			/**
341			* toArray throws an ArrayStoreException when the given array
342			* can not store the objects inside the list
343			*/
344			public void testToArray_ArrayStoreException() {
345			List list = new Vector();
346			// Integers are not auto-converted to Longs
347			list.add(86);
348			list.add(99);
349			assertThrows(
350			ArrayStoreException.class,
351			() -> list.toArray(new Long[0]),
352			() -> list.toArray(new Long[5]));
353			}
354
355			void testIndexOutOfBoundsException(List list) {
356			int size = list.size();
357			assertThrows(
358			IndexOutOfBoundsException.class,
359			() -> list.get(-1),
360			() -> list.get(size),
361			() -> list.set(-1, "qwerty"),
362			() -> list.set(size, "qwerty"),
363			() -> list.add(-1, "qwerty"),
364			() -> list.add(size + 1, "qwerty"),
365			() -> list.remove(-1),
366			() -> list.remove(size),
367			() -> list.addAll(-1, Collections.emptyList()),
368			() -> list.addAll(size + 1, Collections.emptyList()),
369			() -> list.listIterator(-1),
370			() -> list.listIterator(size + 1),
371			() -> list.subList(-1, size),
372			() -> list.subList(0, size + 1));
373
374			// Conversely, operations that must not throw
375			list.addAll(0, Collections.emptyList());
376			list.addAll(size, Collections.emptyList());
377			list.add(0, "qwerty");
378			list.add(list.size(), "qwerty");
379			list.get(0);
380			list.get(list.size() - 1);
381			list.set(0, "azerty");
382			list.set(list.size() - 1, "azerty");
383			list.listIterator(0);
384			list.listIterator(list.size());
385			list.subList(0, list.size());
386			list.remove(list.size() - 1);
387			}
388
389			/**
390			* IndexOutOfBoundsException is thrown when specified
391			*/
392			public void testIndexOutOfBoundsException() {
393			ThreadLocalRandom rnd = ThreadLocalRandom.current();
394			List x = populatedList(rnd.nextInt(5));
395			testIndexOutOfBoundsException(x);
396
397			int start = rnd.nextInt(x.size() + 1);
398			int end = rnd.nextInt(start, x.size() + 1);
399
400			// Vector#subList spec deviates slightly from List#subList spec
401			assertThrows(
402			IllegalArgumentException.class,
403			() -> x.subList(start, start - 1));
404
405			List subList = x.subList(start, end);
406			testIndexOutOfBoundsException(x);
407			}
408
409			/**
410			* a deserialized/reserialized list equals original
411			*/
412			public void testSerialization() throws Exception {
413			List x = populatedList(SIZE);
414			List y = serialClone(x);
415
416			assertNotSame(x, y);
417			assertEquals(x.size(), y.size());
418			assertEquals(x.toString(), y.toString());
419			assertTrue(Arrays.equals(x.toArray(), y.toArray()));
420			assertEquals(x, y);
421			assertEquals(y, x);
422			while (!x.isEmpty()) {
423			assertFalse(y.isEmpty());
424			assertEquals(x.remove(0), y.remove(0));
425			}
426			assertTrue(y.isEmpty());
427			}
428
429	jsr166	1.3	/**
430			* tests for setSize()
431			*/
432			public void testSetSize() {
433	jsr166	1.5	final Vector v = new Vector();
434	jsr166	1.3	for (int n : new int[] { 100, 5, 50 }) {
435			v.setSize(n);
436			assertEquals(n, v.size());
437			assertNull(v.get(0));
438			assertNull(v.get(n - 1));
439	jsr166	1.5	assertThrows(
440			ArrayIndexOutOfBoundsException.class,
441			new Runnable() { public void run() { v.setSize(-1); }});
442	jsr166	1.4	assertEquals(n, v.size());
443			assertNull(v.get(0));
444			assertNull(v.get(n - 1));
445	jsr166	1.3	}
446			}
447
448	jsr166	1.1	}