scolebourne 2002/11/21 15:09:26 Modified: collections/src/test/org/apache/commons/collections/iterators TestAll.java Added: collections/src/test/org/apache/commons/collections/iterators TestLoopingIterator.java Log: Add LoopingIterator, from Jonathan Carlson Revision Changes Path 1.3 +5 -4 jakarta-commons/collections/src/test/org/apache/commons/collections/iterators/TestAll.java Index: TestAll.java =================================================================== RCS file: /home/cvs/jakarta-commons/collections/src/test/org/apache/commons/collections/iterators/TestAll.java,v retrieving revision 1.2 retrieving revision 1.3 diff -u -r1.2 -r1.3 --- TestAll.java 17 Aug 2002 11:39:16 -0000 1.2 +++ TestAll.java 21 Nov 2002 23:09:26 -0000 1.3 @@ -84,6 +84,7 @@ suite.addTest(TestFilterListIterator.suite()); suite.addTest(TestIteratorChain.suite()); suite.addTest(TestListIteratorWrapper.suite()); + suite.addTest(TestLoopingIterator.suite()); suite.addTest(TestSingletonIterator.suite()); suite.addTest(TestSingletonListIterator.suite()); suite.addTest(TestUniqueFilterIterator.suite()); 1.1 jakarta-commons/collections/src/test/org/apache/commons/collections/iterators/TestLoopingIterator.java Index: TestLoopingIterator.java =================================================================== /* * $Header: /home/cvs/jakarta-commons/collections/src/test/org/apache/commons/collections/iterators/TestLoopingIterator.java,v 1.1 2002/11/21 23:09:26 scolebourne Exp $ * $Revision: 1.1 $ * $Date: 2002/11/21 23:09:26 $ * * ==================================================================== * * The Apache Software License, Version 1.1 * * Copyright (c) 1999-2001 The Apache Software Foundation. All rights * reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, if * any, must include the following acknowlegement: * "This product includes software developed by the * Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowlegement may appear in the software itself, * if and wherever such third-party acknowlegements normally appear. * * 4. The names "The Jakarta Project", "Commons", and "Apache Software * Foundation" must not be used to endorse or promote products derived * from this software without prior written permission. For written * permission, please contact [EMAIL PROTECTED] * * 5. Products derived from this software may not be called "Apache" * nor may "Apache" appear in their names without prior written * permission of the Apache Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of the Apache Software Foundation. For more * information on the Apache Software Foundation, please see * <http://www.apache.org/>. * */ package org.apache.commons.collections.iterators; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.NoSuchElementException; import junit.framework.Test; import junit.framework.TestCase; import junit.framework.TestSuite; /** * Tests the LoopingIterator class using jUnit. * * @author <a href="mailto:[EMAIL PROTECTED]">Jonathan Carlson</a> * @author Stephen Colebourne */ public class TestLoopingIterator extends TestCase { public TestLoopingIterator(String testName) { super(testName); } public static Test suite() { return new TestSuite(TestLoopingIterator.class); } /** * Tests constructor exception. */ public void testConstructorEx() throws Exception { try { new LoopingIterator(null); fail(); } catch (NullPointerException ex) { } } /** * Tests whether an empty looping iterator works as designed. * @throws Exception If something unexpected occurs. */ public void testLooping0() throws Exception { List list = new ArrayList(); LoopingIterator loop = new LoopingIterator(list); assertTrue("hasNext should return false", loop.hasNext() == false); try { loop.next(); fail("NoSuchElementException was not thrown during next() call."); } catch (NoSuchElementException ex) { } } /** * Tests whether a populated looping iterator works as designed. * @throws Exception If something unexpected occurs. */ public void testLooping1() throws Exception { List list = new ArrayList(Arrays.asList(new String[] { "a" })); LoopingIterator loop = new LoopingIterator(list); assertTrue("1st hasNext should return true", loop.hasNext()); assertEquals("a", loop.next()); assertTrue("2nd hasNext should return true", loop.hasNext()); assertEquals("a", loop.next()); assertTrue("3rd hasNext should return true", loop.hasNext()); assertEquals("a", loop.next()); } /** * Tests whether a populated looping iterator works as designed. * @throws Exception If something unexpected occurs. */ public void testLooping2() throws Exception { List list = new ArrayList(Arrays.asList(new String[] { "a", "b" })); LoopingIterator loop = new LoopingIterator(list); assertTrue("1st hasNext should return true", loop.hasNext()); assertEquals("a", loop.next()); assertTrue("2nd hasNext should return true", loop.hasNext()); assertEquals("b", loop.next()); assertTrue("3rd hasNext should return true", loop.hasNext()); assertEquals("a", loop.next()); } /** * Tests whether a populated looping iterator works as designed. * @throws Exception If something unexpected occurs. */ public void testLooping3() throws Exception { List list = new ArrayList(Arrays.asList(new String[] { "a", "b", "c" })); LoopingIterator loop = new LoopingIterator(list); assertTrue("1st hasNext should return true", loop.hasNext()); assertEquals("a", loop.next()); assertTrue("2nd hasNext should return true", loop.hasNext()); assertEquals("b", loop.next()); assertTrue("3rd hasNext should return true", loop.hasNext()); assertEquals("c", loop.next()); assertTrue("4th hasNext should return true", loop.hasNext()); assertEquals("a", loop.next()); } /** * Tests the remove() method on a LoopingIterator wrapped ArrayList. * @throws Exception If something unexpected occurs. */ public void testRemoving1() throws Exception { List list = new ArrayList(Arrays.asList(new String[] { "a", "b", "c" })); LoopingIterator loop = new LoopingIterator(list); assertEquals("list should have 3 elements.", 3, list.size()); assertTrue("1st hasNext should return true", loop.hasNext()); assertEquals("a", loop.next()); loop.remove(); // removes a assertEquals("list should have 2 elements.", 2, list.size()); assertTrue("2nd hasNext should return true", loop.hasNext()); assertEquals("b", loop.next()); loop.remove(); // removes b assertEquals("list should have 1 elements.", 1, list.size()); assertTrue("3rd hasNext should return true", loop.hasNext()); assertEquals("c", loop.next()); loop.remove(); // removes c assertEquals("list should have 0 elements.", 0, list.size()); assertTrue("4th hasNext should return false", loop.hasNext() == false); try { loop.next(); fail("Expected NoSuchElementException to be thrown."); } catch (NoSuchElementException ex) { } } /** * Tests the reset() method on a LoopingIterator wrapped ArrayList. * @throws Exception If something unexpected occurs. */ public void testReset() throws Exception { List list = new ArrayList(Arrays.asList(new String[] { "a", "b", "c" })); LoopingIterator loop = new LoopingIterator(list); assertEquals("a", loop.next()); assertEquals("b", loop.next()); loop.reset(); assertEquals("a", loop.next()); loop.reset(); assertEquals("a", loop.next()); assertEquals("b", loop.next()); assertEquals("c", loop.next()); loop.reset(); assertEquals("a", loop.next()); assertEquals("b", loop.next()); assertEquals("c", loop.next()); } /** * Tests the size() method on a LoopingIterator wrapped ArrayList. * @throws Exception If something unexpected occurs. */ public void testSize() throws Exception { List list = new ArrayList(Arrays.asList(new String[] { "a", "b", "c" })); LoopingIterator loop = new LoopingIterator(list); assertEquals(3, loop.size()); loop.next(); loop.next(); assertEquals(3, loop.size()); loop.reset(); assertEquals(3, loop.size()); loop.next(); loop.remove(); assertEquals(2, loop.size()); } }
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