--- jsr166/src/test/tck/CopyOnWriteArrayListTest.java 2003/08/31 19:24:54 1.1 +++ jsr166/src/test/tck/CopyOnWriteArrayListTest.java 2009/11/16 04:57:10 1.9 @@ -1,299 +1,358 @@ /* - * 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/licenses/publicdomain + * Other contributors include Andrew Wright, Jeffrey Hayes, + * Pat Fisher, Mike Judd. */ import junit.framework.*; import java.util.*; import java.util.concurrent.*; +import java.io.*; + +public class CopyOnWriteArrayListTest extends JSR166TestCase{ -public class CopyOnWriteArrayListTest extends TestCase{ - 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); } - static CopyOnWriteArrayList fullArray(int n){ + 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(); + 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) + 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) + assertEquals(ints[i], a.get(i)); + } + + /** - * Test to verify addAll correctly adds each element from the given collection + * addAll adds each element from the given collection */ - public void testAddAll(){ - CopyOnWriteArrayList full = fullArray(3); + public void testAddAll() { + CopyOnWriteArrayList full = populatedArray(3); Vector v = new Vector(); - v.add(new Integer(3)); - v.add(new Integer(4)); - v.add(new Integer(5)); + v.add(three); + v.add(four); + v.add(five); full.addAll(v); assertEquals(6, full.size()); } /** - * Test to verify addAllAbsent adds each element from the given collection that did not + * addAllAbsent adds each element from the given collection that did not * already exist in the List */ - public void testAddAllAbsent(){ - CopyOnWriteArrayList full = fullArray(3); + public void testAddAllAbsent() { + CopyOnWriteArrayList full = populatedArray(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 + v.add(three); + v.add(four); + v.add(one); // will not add this element full.addAllAbsent(v); assertEquals(5, full.size()); } /** - * Test to verify 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 = fullArray(3); - full.addIfAbsent(new Integer(1)); - assertEquals(3, full.size()); + public void testAddIfAbsent() { + CopyOnWriteArrayList full = populatedArray(SIZE); + full.addIfAbsent(one); + assertEquals(SIZE, full.size()); } /** - * test to verify 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 = fullArray(3); - full.addIfAbsent(new Integer(3)); - assertTrue(full.contains(new Integer(3))); + public void testAddIfAbsent2() { + CopyOnWriteArrayList full = populatedArray(SIZE); + full.addIfAbsent(three); + assertTrue(full.contains(three)); } /** - * Test to verify clear correctly removes all elements from the list + * clear removes all elements from the list */ - public void testClear(){ - CopyOnWriteArrayList full = fullArray(3); + public void testClear() { + CopyOnWriteArrayList full = populatedArray(SIZE); full.clear(); assertEquals(0, full.size()); } + + /** + * Cloned list is equal + */ + public void testClone() { + CopyOnWriteArrayList l1 = populatedArray(SIZE); + CopyOnWriteArrayList l2 = (CopyOnWriteArrayList)(l1.clone()); + assertEquals(l1, l2); + l1.clear(); + assertFalse(l1.equals(l2)); + } + /** - * Test to verify contains returns the correct values + * contains is true for added elements */ - public void testContains(){ - CopyOnWriteArrayList full = fullArray(3); - assertTrue(full.contains(new Integer(1))); - assertFalse(full.contains(new Integer(5))); + public void testContains() { + 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 = fullArray(3); - full.add(0, new Integer(-1)); + CopyOnWriteArrayList full = populatedArray(3); + full.add(0, m1); assertEquals(4, full.size()); - assertEquals(new Integer(-1), full.get(0)); - assertEquals(new Integer(0), full.get(1)); + assertEquals(m1, full.get(0)); + assertEquals(zero, full.get(1)); - full.add(2, new Integer(-2)); + full.add(2, m2); assertEquals(5, full.size()); - assertEquals(new Integer(-2), full.get(2)); - assertEquals(new Integer(2), full.get(4)); + assertEquals(m2, full.get(2)); + assertEquals(two, full.get(4)); } + /** + * lists with same elements are equal and have same hashCode + */ public void testEquals() { - CopyOnWriteArrayList a = fullArray(3); - CopyOnWriteArrayList b = fullArray(3); + CopyOnWriteArrayList a = populatedArray(3); + CopyOnWriteArrayList b = populatedArray(3); assertTrue(a.equals(b)); assertTrue(b.equals(a)); assertEquals(a.hashCode(), b.hashCode()); - a.add(new Integer(-1)); + a.add(m1); assertFalse(a.equals(b)); assertFalse(b.equals(a)); - b.add(new Integer(-1)); + b.add(m1); assertTrue(a.equals(b)); assertTrue(b.equals(a)); assertEquals(a.hashCode(), b.hashCode()); } - + /** - * Test to verify containsAll returns the correct values + * containsAll returns true for collection with subset of elements */ - public void testContainsAll(){ - CopyOnWriteArrayList full = fullArray(3); + public void testContainsAll() { + CopyOnWriteArrayList full = populatedArray(3); Vector v = new Vector(); - v.add(new Integer(1)); - v.add(new Integer(2)); + v.add(one); + v.add(two); assertTrue(full.containsAll(v)); - v.add(new Integer(6)); + v.add(six); assertFalse(full.containsAll(v)); } /** - * Test to verify get returns the correct value for the given index + * get returns the value at the given index */ - public void testGet(){ - CopyOnWriteArrayList full = fullArray(3); + public void testGet() { + CopyOnWriteArrayList full = populatedArray(3); assertEquals(0, ((Integer)full.get(0)).intValue()); } /** - * Test to verify indexOf gives the correct index for the given object + * indexOf gives the index for the given object */ - public void testIndexOf(){ - CopyOnWriteArrayList full = fullArray(3); - assertEquals(1, full.indexOf(new Integer(1))); + public void testIndexOf() { + CopyOnWriteArrayList full = populatedArray(3); + assertEquals(1, full.indexOf(one)); assertEquals(-1, full.indexOf("puppies")); } /** - * Test to verify indexOf gives the correct index based on the given index + * indexOf gives the index based on the given index * at which to start searching */ - public void testIndexOf2(){ - CopyOnWriteArrayList full = fullArray(3); - assertEquals(1, full.indexOf(new Integer(1), 0)); - assertEquals(-1, full.indexOf(new Integer(1), 2)); + public void testIndexOf2() { + CopyOnWriteArrayList full = populatedArray(3); + assertEquals(1, full.indexOf(one, 0)); + assertEquals(-1, full.indexOf(one, 2)); } /** - * Test to verify isEmpty returns the correct values + * isEmpty returns true when empty, else false */ - public void testIsEmpty(){ + public void testIsEmpty() { CopyOnWriteArrayList empty = new CopyOnWriteArrayList(); - CopyOnWriteArrayList full = fullArray(3); + CopyOnWriteArrayList full = populatedArray(SIZE); assertTrue(empty.isEmpty()); assertFalse(full.isEmpty()); } /** - * Test to verify 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 = fullArray(3); + public void testIterator() { + CopyOnWriteArrayList full = populatedArray(SIZE); Iterator i = full.iterator(); int j; - for(j = 0; i.hasNext(); j++) + for (j = 0; i.hasNext(); j++) assertEquals(j, ((Integer)i.next()).intValue()); - assertEquals(3, j); + assertEquals(SIZE, j); } + /** + * iterator.remove throws UnsupportedOperationException + */ public void testIteratorRemove () { - CopyOnWriteArrayList full = fullArray(3); + CopyOnWriteArrayList full = populatedArray(SIZE); Iterator it = full.iterator(); it.next(); try { it.remove(); - fail("should throw"); + shouldThrow(); } catch (UnsupportedOperationException success) {} } - public void testToString(){ - CopyOnWriteArrayList full = fullArray(3); + /** + * toString contains toString of elements + */ + 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); } - } + } /** - * Test to verify lastIndexOf returns the correct index for the given object + * lastIndexOf returns the index for the given object */ - public void testLastIndexOf1(){ - CopyOnWriteArrayList full = fullArray(3); - full.add(new Integer(1)); - full.add(new Integer(3)); - assertEquals(3, full.lastIndexOf(new Integer(1))); - assertEquals(-1, full.lastIndexOf(new Integer(6))); + public void testLastIndexOf1() { + CopyOnWriteArrayList full = populatedArray(3); + full.add(one); + full.add(three); + assertEquals(3, full.lastIndexOf(one)); + assertEquals(-1, full.lastIndexOf(six)); } /** - * Test to verify lastIndexOf returns the correct index from the given starting point + * lastIndexOf returns the index from the given starting point */ - public void testlastIndexOf2(){ - CopyOnWriteArrayList full = fullArray(3); - full.add(new Integer(1)); - full.add(new Integer(3)); - assertEquals(3, full.lastIndexOf(new Integer(1), 4)); - assertEquals(-1, full.lastIndexOf(new Integer(3), 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 = fullArray(3); + public void testListIterator1() { + CopyOnWriteArrayList full = populatedArray(SIZE); ListIterator i = full.listIterator(); int j; - for(j = 0; i.hasNext(); j++) + for (j = 0; i.hasNext(); j++) assertEquals(j, ((Integer)i.next()).intValue()); - assertEquals(3, j); + assertEquals(SIZE, j); } /** - * Identical to testIterator and testListIterator1, but only returns those elements - * after the given index + * listIterator only returns those elements after the given index */ - public void testListIterator2(){ - CopyOnWriteArrayList full = fullArray(3); + public void testListIterator2() { + CopyOnWriteArrayList full = populatedArray(3); ListIterator i = full.listIterator(1); int j; - for(j = 0; i.hasNext(); j++) + for (j = 0; i.hasNext(); j++) assertEquals(j+1, ((Integer)i.next()).intValue()); assertEquals(2, j); } /** - * Test to verify 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 = fullArray(3); - assertEquals(new Integer(2), full.remove(2)); + public void testRemove() { + CopyOnWriteArrayList full = populatedArray(3); + assertEquals(two, full.remove(2)); assertEquals(2, full.size()); } /** - * Test to verify removeAll correctly removes all elements from the given collection + * removeAll removes all elements from the given collection */ - public void testRemoveAll(){ - CopyOnWriteArrayList full = fullArray(3); + public void testRemoveAll() { + CopyOnWriteArrayList full = populatedArray(3); Vector v = new Vector(); - v.add(new Integer(1)); - v.add(new Integer(2)); + v.add(one); + v.add(two); full.removeAll(v); assertEquals(1, full.size()); } /** - * Test to verify set correctly changes the element at the given index + * set changes the element at the given index */ - public void testSet(){ - CopyOnWriteArrayList full = fullArray(3); - assertEquals(new Integer(2), full.set(2, new Integer(4))); + public void testSet() { + CopyOnWriteArrayList full = populatedArray(3); + assertEquals(two, full.set(2, four)); assertEquals(4, ((Integer)full.get(2)).intValue()); } /** - * Test to verify size returns the correct values + * size returns the number of elements */ - public void testSize(){ + public void testSize() { CopyOnWriteArrayList empty = new CopyOnWriteArrayList(); - CopyOnWriteArrayList full = fullArray(3); - assertEquals(3, full.size()); + CopyOnWriteArrayList full = populatedArray(SIZE); + assertEquals(SIZE, full.size()); assertEquals(0, empty.size()); } /** - * Test to verify 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 = fullArray(3); + public void testToArray() { + CopyOnWriteArrayList full = populatedArray(3); Object[] o = full.toArray(); assertEquals(3, o.length); assertEquals(0, ((Integer)o[0]).intValue()); @@ -302,10 +361,11 @@ public class CopyOnWriteArrayListTest ex } /** - * test to verify 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 = fullArray(3); + public void testToArray2() { + CopyOnWriteArrayList full = populatedArray(3); Integer[] i = new Integer[3]; i = (Integer[])full.toArray(i); assertEquals(3, i.length); @@ -315,22 +375,24 @@ public class CopyOnWriteArrayListTest ex } + /** + * sublists contains elements at indexes offset from their base + */ public void testSubList() { - CopyOnWriteArrayList a = fullArray(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) { + 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) { + for (int k = j; k < i; ++k) { assertEquals(new Integer(k), b.get(k-j)); } } } - Integer m1 = new Integer(-1); List s = a.subList(2, 5); assertEquals(s.size(), 3); - s.set(2, new Integer(m1)); + s.set(2, m1); assertEquals(a.get(4), m1); s.clear(); assertEquals(a.size(), 7); @@ -339,198 +401,221 @@ public class CopyOnWriteArrayListTest ex // Exception tests /** - * Test to verify toArray throws an ArrayStoreException when the given array + * toArray throws an ArrayStoreException when the given array * can not store the objects inside the list */ - public void testToArray_ArrayStoreException(){ - try{ + 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){} + shouldThrow(); + } catch (ArrayStoreException e){} } /** - * Test to verify get throws an IndexOutOfBoundsException on a negative index + * get throws an IndexOutOfBoundsException on a negative index */ - public void testGet1_IndexOutOfBoundsException(){ - try{ + public void testGet1_IndexOutOfBoundsException() { + try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.get(-1); - fail("Object get(int) should throw IndexOutOfBounds exception"); - }catch(IndexOutOfBoundsException e){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } - + /** - * Test to verify get throws an IndexOutOfBoundsException on a too high index + * get throws an IndexOutOfBoundsException on a too high index */ - public void testGet2_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify set throws an IndexOutOfBoundsException on a negative index + * set throws an IndexOutOfBoundsException on a negative index */ - public void testSet1_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } - + /** - * Test to verify set throws an IndexOutOfBoundsException on a too high index + * set throws an IndexOutOfBoundsException on a too high index */ - public void testSet2(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify add throws an IndexOutOfBoundsException on a negative index + * add throws an IndexOutOfBoundsException on a negative index */ - public void testAdd1_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } - + /** - * Test to verify add throws an IndexOutOfBoundsException on a too high index + * add throws an IndexOutOfBoundsException on a too high index */ - public void testAdd2_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify remove throws an IndexOutOfBoundsException on a negative index + * remove throws an IndexOutOfBoundsException on a negative index */ - public void testRemove1_IndexOutOfBounds(){ - try{ + public void testRemove1_IndexOutOfBounds() { + try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.remove(-1); - fail("Object remove(int) should throw IndexOutOfBounds exception"); - }catch(IndexOutOfBoundsException e){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify remove throws an IndexOutOfBoundsException on a too high index + * remove throws an IndexOutOfBoundsException on a too high index */ - public void testRemove2_IndexOutOfBounds(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } - + /** - * Test to verify addAll throws an IndexOutOfBoundsException on a negative index + * addAll throws an IndexOutOfBoundsException on a negative index */ - public void testAddAll1_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } - + /** - * Test to verify addAll throws an IndexOutOfBoundsException on a too high index + * addAll throws an IndexOutOfBoundsException on a too high index */ - public void testAddAll2_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify listIterator throws an IndexOutOfBoundsException on a negative index + * listIterator throws an IndexOutOfBoundsException on a negative index */ - public void testListIterator1_IndexOutOfBoundsException(){ - try{ + public void testListIterator1_IndexOutOfBoundsException() { + try { CopyOnWriteArrayList c = new CopyOnWriteArrayList(); c.listIterator(-1); - fail("ListIterator listIterator(int) should throw IndexOutOfBounds exceptione"); - }catch(IndexOutOfBoundsException e){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify listIterator throws an IndexOutOfBoundsException on a too high index + * listIterator throws an IndexOutOfBoundsException on a too high index */ - public void testListIterator2_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify subList throws an IndexOutOfBoundsException on a negative index + * subList throws an IndexOutOfBoundsException on a negative index */ - public void testSubList1_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify subList throws an IndexOutOfBoundsException on a too high index + * subList throws an IndexOutOfBoundsException on a too high index */ - public void testSubList2_IndexOutOfBoundsException(){ - try{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } /** - * Test to verify 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{ + 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){} + shouldThrow(); + } catch (IndexOutOfBoundsException e){} } - + + /** + * a deserialized serialiszed 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(); + + 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(); + } + } + }