| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.beanutils; |
| |
| |
| import junit.framework.Test; |
| import junit.framework.TestCase; |
| import junit.framework.TestSuite; |
| |
| |
| /** |
| * <p> |
| * Test Case for the BeanComparator class. |
| * |
| * @version $Id$ |
| */ |
| |
| public class BeanComparatorTestCase extends TestCase { |
| |
| // ---------------------------------------------------- Instance Variables |
| |
| /** |
| * The test beans for each test. |
| */ |
| protected TestBean bean = null; |
| protected AlphaBean alphaBean1 = null; |
| protected AlphaBean alphaBean2 = null; |
| |
| |
| // ---------------------------------------------------------- Constructors |
| |
| /** |
| * Construct a new instance of this test case. |
| * |
| * @param name Name of the test case |
| */ |
| public BeanComparatorTestCase(final String name) { |
| super(name); |
| } |
| |
| |
| // -------------------------------------------------- Overall Test Methods |
| |
| |
| /** |
| * Set up instance variables required by this test case. |
| */ |
| @Override |
| public void setUp() { |
| bean = new TestBean(); |
| alphaBean1 = new AlphaBean("alphaBean1"); |
| alphaBean2 = new AlphaBean("alphaBean2"); |
| |
| |
| } |
| |
| |
| /** |
| * Return the tests included in this test suite. |
| */ |
| public static Test suite() { |
| return (new TestSuite(BeanComparatorTestCase.class)); |
| } |
| |
| /** |
| * Tear down instance variables required by this test case. |
| */ |
| @Override |
| public void tearDown() { |
| bean = null; |
| alphaBean1 = null; |
| alphaBean2 = null; |
| } |
| |
| |
| // ------------------------------------------------ Individual Test Methods |
| |
| |
| /** |
| * tests comparing two beans via their name using the default Comparator |
| */ |
| public void testSimpleCompare() { |
| final BeanComparator<AlphaBean> beanComparator = new BeanComparator<AlphaBean>( |
| "name"); |
| final int result = beanComparator.compare(alphaBean1, alphaBean2); |
| assertTrue("Comparator did not sort properly. Result:" + result, |
| result == -1); |
| } |
| |
| /** |
| * tests comparing two beans via their name using the default Comparator, but the inverse |
| */ |
| public void testSimpleCompareInverse() { |
| final BeanComparator<AlphaBean> beanComparator = new BeanComparator<AlphaBean>( |
| "name"); |
| final int result = beanComparator.compare(alphaBean2, alphaBean1); |
| assertTrue("Comparator did not sort properly. Result:" + result, |
| result == 1); |
| } |
| |
| /** |
| * tests comparing two beans via their name using the default Comparator where they have the same value. |
| */ |
| public void testCompareIdentical() { |
| alphaBean1 = new AlphaBean("alphabean"); |
| alphaBean2 = new AlphaBean("alphabean"); |
| final BeanComparator<AlphaBean> beanComparator = new BeanComparator<AlphaBean>( |
| "name"); |
| final int result = beanComparator.compare(alphaBean1, alphaBean2); |
| assertTrue("Comparator did not sort properly. Result:" + result, |
| result == 0); |
| } |
| |
| /** |
| * tests comparing one bean against itself. |
| */ |
| public void testCompareBeanAgainstSelf() { |
| final BeanComparator<AlphaBean> beanComparator = new BeanComparator<AlphaBean>( |
| "name"); |
| final int result = beanComparator.compare(alphaBean1, alphaBean1); |
| assertTrue("Comparator did not sort properly. Result:" + result, |
| result == 0); |
| } |
| |
| /** |
| * tests comparing two beans via their name using the default Comparator, but with one of the beans |
| * being null. |
| */ |
| public void testCompareWithNulls() { |
| try { |
| final BeanComparator<AlphaBean> beanComparator = new BeanComparator<AlphaBean>("name"); |
| beanComparator.compare(alphaBean2, null); |
| |
| fail("Should not be able to compare a null value."); |
| } |
| catch (final Exception e) { |
| // expected result |
| } |
| } |
| |
| /** |
| * tests comparing two beans who don't have a property |
| */ |
| public void testCompareOnMissingProperty() { |
| try { |
| final BeanComparator<AlphaBean> beanComparator = new BeanComparator<AlphaBean>("bogusName"); |
| beanComparator.compare(alphaBean2, alphaBean1); |
| fail("should not be able to compare"); |
| |
| |
| } |
| catch (final Exception e) { |
| assertTrue("Wrong exception was thrown: " + e, e.toString().indexOf("Unknown property") > -1); |
| } |
| } |
| |
| /** |
| * tests comparing two beans on a boolean property, which is not possible. |
| */ |
| public void testCompareOnBooleanProperty() { |
| try { |
| final TestBean testBeanA = new TestBean(); |
| final TestBean testBeanB = new TestBean(); |
| |
| testBeanA.setBooleanProperty(true); |
| testBeanB.setBooleanProperty(false); |
| |
| final BeanComparator<TestBean> beanComparator = new BeanComparator<TestBean>("booleanProperty"); |
| beanComparator.compare(testBeanA, testBeanB); |
| |
| // **** java.lang.Boolean implements Comparable from JDK 1.5 onwards |
| // so this test no longer fails |
| // fail("BeanComparator should throw an exception when comparing two booleans."); |
| |
| } |
| catch (final ClassCastException cce){ |
| // Expected result |
| } |
| } |
| |
| /** |
| * tests comparing two beans on a boolean property, then changing the property and testing |
| */ |
| public void testSetProperty() { |
| final TestBean testBeanA = new TestBean(); |
| final TestBean testBeanB = new TestBean(); |
| |
| testBeanA.setDoubleProperty(5.5); |
| testBeanB.setDoubleProperty(1.0); |
| |
| final BeanComparator<TestBean> beanComparator = new BeanComparator<TestBean>( |
| "doubleProperty"); |
| int result = beanComparator.compare(testBeanA, testBeanB); |
| |
| assertTrue("Comparator did not sort properly. Result:" + result, |
| result == 1); |
| |
| testBeanA.setStringProperty("string 1"); |
| testBeanB.setStringProperty("string 2"); |
| |
| beanComparator.setProperty("stringProperty"); |
| |
| result = beanComparator.compare(testBeanA, testBeanB); |
| |
| assertTrue("Comparator did not sort properly. Result:" + result, |
| result == -1); |
| } |
| } |