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The source code/* * Copyright 2003-2004 The Apache Software Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.commons.collections.bag; import java.util.Set; import junit.framework.Test; import junit.framework.TestSuite; import org.apache.commons.collections.Bag; /** * Extension of {@link TestBag} for exercising the {@link TypedBag} * implementation. * * @since Commons Collections 3.0 * @version $Revision: 1.7 $ $Date: 2004/06/02 22:05:03 $ * * @author Phil Steitz */ public class TestTypedBag extends AbstractTestBag { public TestTypedBag(String testName) { super(testName); } public static Test suite() { return new TestSuite(TestTypedBag.class); } public static void main(String args[]) { String[] testCaseName = { TestTypedBag.class.getName()}; junit.textui.TestRunner.main(testCaseName); } //-------------------------------------------------------------------------- protected Class stringClass = this.getName().getClass(); private Object obj = new Object(); protected Class objectClass = obj.getClass(); protected Bag decorateBag(HashBag bag, Class claz) { return TypedBag.decorate(bag, claz); } public Bag makeBag() { return decorateBag(new HashBag(), objectClass); } protected Bag makeTestBag() { return decorateBag(new HashBag(), stringClass); } //-------------------------------------------------------------------------- public void testlegalAddRemove() { Bag bag = makeTestBag(); assertEquals(0, bag.size()); Object[] els = new Object[] {"1", "3", "5", "7", "2", "4", "1"}; for (int i = 0; i < els.length; i++) { bag.add(els[i]); assertEquals(i + 1, bag.size()); assertEquals(true, bag.contains(els[i])); } Set set = ((PredicatedBag) bag).uniqueSet(); assertTrue("Unique set contains the first element",set.contains(els[0])); assertEquals(true, bag.remove(els[0])); set = ((PredicatedBag) bag).uniqueSet(); assertTrue("Unique set now does not contain the first element", !set.contains(els[0])); } public void testIllegalAdd() { Bag bag = makeTestBag(); Integer i = new Integer(3); try { bag.add(i); fail("Integer should fail type check."); } catch (IllegalArgumentException e) { // expected } assertTrue("Collection shouldn't contain illegal element", !bag.contains(i)); } public void testIllegalDecorate() { HashBag elements = new HashBag(); elements.add("one"); elements.add("two"); elements.add(new Integer(3)); elements.add("four"); try { Bag bag = decorateBag(elements, stringClass); fail("Bag contains an element that should fail the type test."); } catch (IllegalArgumentException e) { // expected } try { Bag bag = decorateBag(new HashBag(), null); fail("Expectiing IllegalArgumentException for null predicate."); } catch (IllegalArgumentException e) { // expected } } protected boolean skipSerializedCanonicalTests() { return true; } } |
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