From 9e1b45941d63a6b63e58132031e58bbd4c7ba3ba Mon Sep 17 00:00:00 2001 From: Morgan James Delagrange Date: Mon, 25 Feb 2002 23:37:48 +0000 Subject: [PATCH] added base class for testing iterators git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@130580 13f79535-47bb-0310-9956-ffa450edef68 --- .../collections/TestSingletonIterator.java | 248 ++++++++++-------- 1 file changed, 136 insertions(+), 112 deletions(-) diff --git a/src/test/org/apache/commons/collections/TestSingletonIterator.java b/src/test/org/apache/commons/collections/TestSingletonIterator.java index b6d0b9535..556ddb3b1 100644 --- a/src/test/org/apache/commons/collections/TestSingletonIterator.java +++ b/src/test/org/apache/commons/collections/TestSingletonIterator.java @@ -1,112 +1,136 @@ -/* - * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/test/org/apache/commons/collections/Attic/TestSingletonIterator.java,v 1.1 2001/08/22 07:43:53 jstrachan Exp $ - * $Revision: 1.1 $ - * $Date: 2001/08/22 07:43:53 $ - * - * ==================================================================== - * - * 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 apache@apache.org. - * - * 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 - * . - * - */ - -package org.apache.commons.collections; - -import junit.framework.*; -import java.util.Iterator; -import java.util.NoSuchElementException; - -/** - * Tests the SingletonIterator to ensure that the next() method will actually - * perform the iteration rather than the hasNext() method. - * - * @author James Strachan - * @version $Id: TestSingletonIterator.java,v 1.1 2001/08/22 07:43:53 jstrachan Exp $ - */ -public class TestSingletonIterator extends TestObject { - - private static final Object testValue = "foo"; - - public static Test suite() { - return new TestSuite(TestSingletonIterator.class); - } - - public TestSingletonIterator(String testName) { - super(testName); - } - - /** - * Return a new, empty {@link Object} to used for testing. - */ - public Object makeObject() { - return new SingletonIterator( testValue ); - } - - public void testIterator() { - Iterator iter = (Iterator) makeObject(); - assertTrue( "Iterator has a first item", iter.hasNext() ); - - Object iterValue = iter.next(); - assertEquals( "Iteration value is correct", testValue, iterValue ); - - assertTrue("Iterator should now be empty", ! iter.hasNext() ); - - try { - Object testValue = iter.next(); - } - catch (Exception e) { - assertTrue("NoSuchElementException must be thrown", - e.getClass().equals((new NoSuchElementException()).getClass())); - } - } -} - +/* + * $Header: /home/jerenkrantz/tmp/commons/commons-convert/cvs/home/cvs/jakarta-commons//collections/src/test/org/apache/commons/collections/Attic/TestSingletonIterator.java,v 1.2 2002/02/25 23:37:48 morgand Exp $ + * $Revision: 1.2 $ + * $Date: 2002/02/25 23:37:48 $ + * + * ==================================================================== + * + * 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 apache@apache.org. + * + * 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 + * . + * + */ + +package org.apache.commons.collections; + +import junit.framework.*; +import java.util.Iterator; +import java.util.NoSuchElementException; + +/** + * Tests the SingletonIterator to ensure that the next() method will actually + * perform the iteration rather than the hasNext() method. + * + * @author James Strachan + * @version $Id: TestSingletonIterator.java,v 1.2 2002/02/25 23:37:48 morgand Exp $ + */ +public class TestSingletonIterator extends TestIterator { + + private static final Object testValue = "foo"; + + public static Test suite() { + return new TestSuite(TestSingletonIterator.class); + } + + public TestSingletonIterator(String testName) { + super(testName); + } + + /** + * Returns null. SingletonIterators can never be empty; + * they always have exactly one element. + * + * @return null + */ + public Iterator makeEmptyIterator() { + return null; + } + + public Iterator makeFullIterator() { + return new SingletonIterator( testValue ); + } + + /** + * Return a new, empty {@link Object} to used for testing. + */ + public Object makeObject() { + return makeFullIterator(); + } + + /** + * Whether or not we are testing an iterator that can be + * empty. SingletonIterators are never empty; + * + * @return false + */ + public boolean supportsEmptyIterator() { + return false; + } + + public void testIterator() { + Iterator iter = (Iterator) makeObject(); + assertTrue( "Iterator has a first item", iter.hasNext() ); + + Object iterValue = iter.next(); + assertEquals( "Iteration value is correct", testValue, iterValue ); + + assertTrue("Iterator should now be empty", ! iter.hasNext() ); + + try { + Object testValue = iter.next(); + } + catch (Exception e) { + assertTrue("NoSuchElementException must be thrown", + e.getClass().equals((new NoSuchElementException()).getClass())); + } + } +} +