--- jsr166/src/test/tck/CopyOnWriteArrayListTest.java 2003/09/20 18:20:07 1.4 +++ jsr166/src/test/tck/CopyOnWriteArrayListTest.java 2011/06/18 14:32:14 1.23 @@ -1,149 +1,151 @@ /* - * 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. + * Written by Doug Lea with assistance from members of JCP JSR-166 + * Expert Group and released to the public domain, as explained at + * http://creativecommons.org/publicdomain/zero/1.0/ + * Other contributors include Andrew Wright, Jeffrey Hayes, + * Pat Fisher, Mike Judd. */ import junit.framework.*; -import java.util.*; -import java.util.concurrent.*; -import java.io.*; +import java.util.Arrays; +import java.util.Iterator; +import java.util.LinkedList; +import java.util.List; +import java.util.ListIterator; +import java.util.Vector; +import java.util.concurrent.CopyOnWriteArrayList; + +public class CopyOnWriteArrayListTest extends JSR166TestCase { -public class CopyOnWriteArrayListTest extends JSR166TestCase{ - public static void main(String[] args) { - junit.textui.TestRunner.run (suite()); + junit.textui.TestRunner.run(suite()); } public static Test suite() { - return new TestSuite(CopyOnWriteArrayListTest.class); + return new TestSuite(CopyOnWriteArrayListTest.class); } - static CopyOnWriteArrayList populatedArray(int n){ - CopyOnWriteArrayList a = new CopyOnWriteArrayList(); + static CopyOnWriteArrayList populatedArray(int n) { + CopyOnWriteArrayList a = new CopyOnWriteArrayList(); assertTrue(a.isEmpty()); - for (int i = 0; i < n; ++i) + for (int i = 0; i < n; ++i) a.add(new Integer(i)); assertFalse(a.isEmpty()); assertEquals(n, a.size()); return a; } - /** - * + * a new list is empty */ public void testConstructor() { - CopyOnWriteArrayList a = new CopyOnWriteArrayList(); + CopyOnWriteArrayList a = new CopyOnWriteArrayList(); assertTrue(a.isEmpty()); } /** - * + * new list contains all elements of initializing array */ public void testConstructor2() { Integer[] ints = new Integer[SIZE]; for (int i = 0; i < SIZE-1; ++i) ints[i] = new Integer(i); - CopyOnWriteArrayList a = new CopyOnWriteArrayList(ints); - for (int i = 0; i < SIZE; ++i) + CopyOnWriteArrayList a = new CopyOnWriteArrayList(ints); + for (int i = 0; i < SIZE; ++i) assertEquals(ints[i], a.get(i)); } /** - * + * new list contains all elements of initializing collection */ public void testConstructor3() { Integer[] ints = new Integer[SIZE]; for (int i = 0; i < SIZE-1; ++i) ints[i] = new Integer(i); - CopyOnWriteArrayList a = new CopyOnWriteArrayList(Arrays.asList(ints)); - for (int i = 0; i < SIZE; ++i) + 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 + * addAll adds each element from the given collection */ public void testAddAll() { - CopyOnWriteArrayList full = populatedArray(3); - Vector v = new Vector(); - v.add(three); - v.add(four); - v.add(five); - full.addAll(v); - assertEquals(6, full.size()); + 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 + * 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()); + 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 + * addIfAbsent will not add the element if it already exists in the list */ public void testAddIfAbsent() { - CopyOnWriteArrayList full = populatedArray(SIZE); - full.addIfAbsent(one); - assertEquals(SIZE, full.size()); + CopyOnWriteArrayList full = populatedArray(SIZE); + full.addIfAbsent(one); + assertEquals(SIZE, full.size()); } /** - * addIfAbsent correctly adds the element when it does not exist in the list + * addIfAbsent adds the element when it does not exist in the list */ public void testAddIfAbsent2() { - CopyOnWriteArrayList full = populatedArray(SIZE); + CopyOnWriteArrayList full = populatedArray(SIZE); full.addIfAbsent(three); assertTrue(full.contains(three)); } /** - * clear correctly removes all elements from the list + * clear removes all elements from the list */ public void testClear() { - CopyOnWriteArrayList full = populatedArray(SIZE); - full.clear(); - assertEquals(0, full.size()); + CopyOnWriteArrayList full = populatedArray(SIZE); + full.clear(); + assertEquals(0, full.size()); } - /** - * Cloned list is equal + * Cloned list is equal */ public void testClone() { - CopyOnWriteArrayList l1 = populatedArray(SIZE); - CopyOnWriteArrayList l2 = (CopyOnWriteArrayList)(l1.clone()); + CopyOnWriteArrayList l1 = populatedArray(SIZE); + CopyOnWriteArrayList l2 = (CopyOnWriteArrayList)(l1.clone()); assertEquals(l1, l2); - l1.clear(); + l1.clear(); assertFalse(l1.equals(l2)); } /** - * contains returns the correct values + * contains is true for added elements */ public void testContains() { - CopyOnWriteArrayList full = populatedArray(3); - assertTrue(full.contains(one)); - assertFalse(full.contains(five)); + CopyOnWriteArrayList full = populatedArray(3); + assertTrue(full.contains(one)); + assertFalse(full.contains(five)); } /** - * + * adding at an index places it in the indicated index */ public void testAddIndex() { - CopyOnWriteArrayList full = populatedArray(3); + CopyOnWriteArrayList full = populatedArray(3); full.add(0, m1); assertEquals(4, full.size()); assertEquals(m1, full.get(0)); @@ -156,11 +158,11 @@ public class CopyOnWriteArrayListTest ex } /** - * + * lists with same elements are equal and have same hashCode */ public void testEquals() { - CopyOnWriteArrayList a = populatedArray(3); - CopyOnWriteArrayList b = populatedArray(3); + CopyOnWriteArrayList a = populatedArray(3); + CopyOnWriteArrayList b = populatedArray(3); assertTrue(a.equals(b)); assertTrue(b.equals(a)); assertEquals(a.hashCode(), b.hashCode()); @@ -173,235 +175,232 @@ public class CopyOnWriteArrayListTest ex assertEquals(a.hashCode(), b.hashCode()); } - /** - * containsAll returns the correct values + * containsAll returns true for collection with subset of elements */ public void testContainsAll() { - CopyOnWriteArrayList full = populatedArray(3); - Vector v = new Vector(); - v.add(one); - v.add(two); - assertTrue(full.containsAll(v)); - v.add(six); - assertFalse(full.containsAll(v)); + 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 + * get returns the value at the given index */ public void testGet() { - CopyOnWriteArrayList full = populatedArray(3); - assertEquals(0, ((Integer)full.get(0)).intValue()); + CopyOnWriteArrayList full = populatedArray(3); + assertEquals(0, full.get(0)); } /** - * indexOf gives the correct index for the given object + * indexOf gives the index for the given object */ public void testIndexOf() { - CopyOnWriteArrayList full = populatedArray(3); - assertEquals(1, full.indexOf(one)); - assertEquals(-1, full.indexOf("puppies")); + 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 + * indexOf gives the index based on the given index + * at which to start searching */ public void testIndexOf2() { - CopyOnWriteArrayList full = populatedArray(3); - assertEquals(1, full.indexOf(one, 0)); - assertEquals(-1, full.indexOf(one, 2)); + CopyOnWriteArrayList full = populatedArray(3); + assertEquals(1, full.indexOf(one, 0)); + assertEquals(-1, full.indexOf(one, 2)); } /** - * isEmpty returns the correct values + * isEmpty returns true when empty, else false */ public void testIsEmpty() { - CopyOnWriteArrayList empty = new CopyOnWriteArrayList(); - CopyOnWriteArrayList full = populatedArray(SIZE); - assertTrue(empty.isEmpty()); - assertFalse(full.isEmpty()); + CopyOnWriteArrayList empty = new CopyOnWriteArrayList(); + CopyOnWriteArrayList full = populatedArray(SIZE); + assertTrue(empty.isEmpty()); + assertFalse(full.isEmpty()); } /** - * iterator() returns an iterator containing the elements of the list + * iterator() returns an iterator containing the elements of the list */ public void testIterator() { - CopyOnWriteArrayList full = populatedArray(SIZE); - Iterator i = full.iterator(); - int j; - for(j = 0; i.hasNext(); j++) - assertEquals(j, ((Integer)i.next()).intValue()); - assertEquals(SIZE, j); + CopyOnWriteArrayList full = populatedArray(SIZE); + Iterator i = full.iterator(); + int j; + for (j = 0; i.hasNext(); j++) + assertEquals(j, i.next()); + assertEquals(SIZE, j); } /** - * + * iterator.remove throws UnsupportedOperationException */ - public void testIteratorRemove () { - CopyOnWriteArrayList full = populatedArray(SIZE); + public void testIteratorRemove() { + CopyOnWriteArrayList full = populatedArray(SIZE); Iterator it = full.iterator(); it.next(); try { it.remove(); shouldThrow(); - } - catch (UnsupportedOperationException success) {} + } catch (UnsupportedOperationException success) {} } /** - * + * toString contains toString of elements */ public void testToString() { - CopyOnWriteArrayList full = populatedArray(3); + CopyOnWriteArrayList full = populatedArray(3); String s = full.toString(); for (int i = 0; i < 3; ++i) { - assertTrue(s.indexOf(String.valueOf(i)) >= 0); + assertTrue(s.contains(String.valueOf(i))); } - } + } /** - * lastIndexOf returns the correct index for the given object + * lastIndexOf returns the index for the given object */ public void testLastIndexOf1() { - CopyOnWriteArrayList full = populatedArray(3); - full.add(one); - full.add(three); - assertEquals(3, full.lastIndexOf(one)); - assertEquals(-1, full.lastIndexOf(six)); + 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 + * lastIndexOf returns the index from the given starting point */ - public void testlastIndexOf2() { - CopyOnWriteArrayList full = populatedArray(3); - full.add(one); - full.add(three); - assertEquals(3, full.lastIndexOf(one, 4)); - assertEquals(-1, full.lastIndexOf(three, 3)); + 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 + * listIterator traverses all elements */ public void testListIterator1() { - CopyOnWriteArrayList full = populatedArray(SIZE); - ListIterator i = full.listIterator(); - int j; - for(j = 0; i.hasNext(); j++) - assertEquals(j, ((Integer)i.next()).intValue()); - assertEquals(SIZE, j); + CopyOnWriteArrayList full = populatedArray(SIZE); + ListIterator i = full.listIterator(); + int j; + for (j = 0; i.hasNext(); j++) + assertEquals(j, i.next()); + assertEquals(SIZE, j); } /** - * listIterator only returns those elements after the given index + * listIterator only returns those elements after the given index */ public void testListIterator2() { - CopyOnWriteArrayList full = populatedArray(3); - ListIterator i = full.listIterator(1); - int j; - for(j = 0; i.hasNext(); j++) - assertEquals(j+1, ((Integer)i.next()).intValue()); - assertEquals(2, j); + CopyOnWriteArrayList full = populatedArray(3); + ListIterator i = full.listIterator(1); + int j; + for (j = 0; i.hasNext(); j++) + assertEquals(j+1, i.next()); + assertEquals(2, j); } /** - * remove correctly removes and returns the object at the given index + * remove removes and returns the object at the given index */ public void testRemove() { - CopyOnWriteArrayList full = populatedArray(3); - assertEquals(two, full.remove(2)); - assertEquals(2, full.size()); + CopyOnWriteArrayList full = populatedArray(3); + assertEquals(2, full.remove(2)); + assertEquals(2, full.size()); } /** - * removeAll correctly removes all elements from the given collection + * removeAll removes all elements from the given collection */ public void testRemoveAll() { - CopyOnWriteArrayList full = populatedArray(3); - Vector v = new Vector(); - v.add(one); - v.add(two); - full.removeAll(v); - assertEquals(1, full.size()); + 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 + * set changes the element at the given index */ public void testSet() { - CopyOnWriteArrayList full = populatedArray(3); - assertEquals(two, full.set(2, four)); - assertEquals(4, ((Integer)full.get(2)).intValue()); + CopyOnWriteArrayList full = populatedArray(3); + assertEquals(2, full.set(2, four)); + assertEquals(4, full.get(2)); } /** - * size returns the correct values + * size returns the number of elements */ public void testSize() { - CopyOnWriteArrayList empty = new CopyOnWriteArrayList(); - CopyOnWriteArrayList full = populatedArray(SIZE); - assertEquals(SIZE, full.size()); - assertEquals(0, empty.size()); + CopyOnWriteArrayList empty = new CopyOnWriteArrayList(); + CopyOnWriteArrayList full = populatedArray(SIZE); + assertEquals(SIZE, full.size()); + assertEquals(0, empty.size()); } /** - * toArray returns an Object array containing all elements from the list + * 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()); + CopyOnWriteArrayList full = populatedArray(3); + Object[] o = full.toArray(); + assertEquals(3, o.length); + assertEquals(0, o[0]); + assertEquals(1, o[1]); + assertEquals(2, o[2]); } /** - * toArray returns an Integer array containing all elements from - * the list + * 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()); + CopyOnWriteArrayList full = populatedArray(3); + Integer[] i = new Integer[3]; + i = (Integer[])full.toArray(i); + assertEquals(3, i.length); + assertEquals(0, i[0].intValue()); + assertEquals(1, i[1].intValue()); + assertEquals(2, i[2].intValue()); } - /** - * + * sublists contains elements at indexes offset from their base */ public void testSubList() { - CopyOnWriteArrayList a = populatedArray(10); + 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)); - } - } - } + 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); + List s = a.subList(2, 5); assertEquals(s.size(), 3); s.set(2, m1); assertEquals(a.get(4), m1); - s.clear(); + s.clear(); assertEquals(a.size(), 7); } // Exception tests /** - * toArray throws an ArrayStoreException when the given array - * can not store the objects inside the list + * toArray throws an ArrayStoreException when the given array + * can not store the objects inside the list */ public void testToArray_ArrayStoreException() { try { @@ -409,23 +408,23 @@ public class CopyOnWriteArrayListTest ex c.add("zfasdfsdf"); c.add("asdadasd"); c.toArray(new Long[5]); - shouldThrow(); - } catch(ArrayStoreException e){} + shouldThrow(); + } catch (ArrayStoreException success) {} } /** - * get throws an IndexOutOfBoundsException on a negative index + * get throws an IndexOutOfBoundsException on a negative index */ public void testGet1_IndexOutOfBoundsException() { try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.get(-1); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } - + /** - * get throws an IndexOutOfBoundsException on a too high index + * get throws an IndexOutOfBoundsException on a too high index */ public void testGet2_IndexOutOfBoundsException() { try { @@ -434,22 +433,22 @@ public class CopyOnWriteArrayListTest ex c.add("asdad"); c.get(100); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * set throws an IndexOutOfBoundsException on a negative index + * set throws an IndexOutOfBoundsException on a negative index */ public void testSet1_IndexOutOfBoundsException() { try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.set(-1,"qwerty"); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } - + /** - * set throws an IndexOutOfBoundsException on a too high index + * set throws an IndexOutOfBoundsException on a too high index */ public void testSet2() { try { @@ -458,22 +457,22 @@ public class CopyOnWriteArrayListTest ex c.add("asdad"); c.set(100, "qwerty"); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * add throws an IndexOutOfBoundsException on a negative index + * add throws an IndexOutOfBoundsException on a negative index */ public void testAdd1_IndexOutOfBoundsException() { try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.add(-1,"qwerty"); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } - + /** - * add throws an IndexOutOfBoundsException on a too high index + * add throws an IndexOutOfBoundsException on a too high index */ public void testAdd2_IndexOutOfBoundsException() { try { @@ -482,22 +481,22 @@ public class CopyOnWriteArrayListTest ex c.add("asdasdasd"); c.add(100, "qwerty"); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * remove throws an IndexOutOfBoundsException on a negative index + * remove throws an IndexOutOfBoundsException on a negative index */ public void testRemove1_IndexOutOfBounds() { try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.remove(-1); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * remove throws an IndexOutOfBoundsException on a too high index + * remove throws an IndexOutOfBoundsException on a too high index */ public void testRemove2_IndexOutOfBounds() { try { @@ -506,22 +505,22 @@ public class CopyOnWriteArrayListTest ex c.add("adasdasd"); c.remove(100); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } - + /** - * addAll throws an IndexOutOfBoundsException on a negative index + * addAll throws an IndexOutOfBoundsException on a negative index */ public void testAddAll1_IndexOutOfBoundsException() { try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.addAll(-1,new LinkedList()); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } - + /** - * addAll throws an IndexOutOfBoundsException on a too high index + * addAll throws an IndexOutOfBoundsException on a too high index */ public void testAddAll2_IndexOutOfBoundsException() { try { @@ -530,22 +529,22 @@ public class CopyOnWriteArrayListTest ex c.add("asdasdasd"); c.addAll(100, new LinkedList()); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * listIterator throws an IndexOutOfBoundsException on a negative index + * listIterator throws an IndexOutOfBoundsException on a negative index */ public void testListIterator1_IndexOutOfBoundsException() { try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.listIterator(-1); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * listIterator throws an IndexOutOfBoundsException on a too high index + * listIterator throws an IndexOutOfBoundsException on a too high index */ public void testListIterator2_IndexOutOfBoundsException() { try { @@ -554,23 +553,22 @@ public class CopyOnWriteArrayListTest ex c.add("asdasdas"); c.listIterator(100); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * subList throws an IndexOutOfBoundsException on a negative index + * subList throws an IndexOutOfBoundsException on a negative index */ public void testSubList1_IndexOutOfBoundsException() { try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.subList(-1,100); - shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * subList throws an IndexOutOfBoundsException on a too high index + * subList throws an IndexOutOfBoundsException on a too high index */ public void testSubList2_IndexOutOfBoundsException() { try { @@ -578,43 +576,39 @@ public class CopyOnWriteArrayListTest ex c.add("asdasd"); c.subList(1,100); shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * subList throws IndexOutOfBoundsException when the second index - * is lower then the first + * subList throws IndexOutOfBoundsException when the second index + * is lower then the first */ public void testSubList3_IndexOutOfBoundsException() { try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.subList(3,1); - shouldThrow(); - } catch(IndexOutOfBoundsException e){} + } catch (IndexOutOfBoundsException success) {} } /** - * + * a deserialized serialized list is equal */ - public void testSerialization() { - CopyOnWriteArrayList q = populatedArray(SIZE); - - try { - ByteArrayOutputStream bout = new ByteArrayOutputStream(10000); - ObjectOutputStream out = new ObjectOutputStream(new BufferedOutputStream(bout)); - out.writeObject(q); - out.close(); + public void testSerialization() throws Exception { + List x = populatedArray(SIZE); + List y = serialClone(x); - ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray()); - ObjectInputStream in = new ObjectInputStream(new BufferedInputStream(bin)); - CopyOnWriteArrayList r = (CopyOnWriteArrayList)in.readObject(); - assertEquals(q.size(), r.size()); - assertTrue(q.equals(r)); - assertTrue(r.equals(q)); - } catch(Exception e){ - unexpectedException(); + assertTrue(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()); } - + }