Spring Framework example source code file (ManagedSetTests.java)

This example Spring Framework source code file (ManagedSetTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

illegalargumentexception, illegalstateexception, managedset, managedset, managedsettests, managedsettests, must, must, set, set, testcase, util

The Spring Framework ManagedSetTests.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * 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.springframework.beans.factory.support;

import java.util.Set;

import junit.framework.TestCase;

/**
 * @author Rick Evans
 * @author Juergen Hoeller
 */
public class ManagedSetTests extends TestCase {

	public void testMergeSunnyDay() {
		ManagedSet parent = new ManagedSet();
		parent.add("one");
		parent.add("two");
		ManagedSet child = new ManagedSet();
		child.add("three");
		child.setMergeEnabled(true);
		Set mergedSet = (Set) child.merge(parent);
		assertEquals("merge() obviously did not work.", 3, mergedSet.size());
	}

	public void testMergeWithNullParent() {
		ManagedSet child = new ManagedSet();
		child.add("one");
		child.setMergeEnabled(true);
		assertSame(child, child.merge(null));
	}

	public void testMergeNotAllowedWhenMergeNotEnabled() {
		ManagedSet child = new ManagedSet();
		try {
			child.merge(null);
			fail("Must have failed by this point (cannot merge() when the mergeEnabled property is false.");
		}
		catch (IllegalStateException expected) {
		}
	}

	public void testMergeWithNonCompatibleParentType() {
		ManagedSet child = new ManagedSet();
		child.add("one");
		child.setMergeEnabled(true);
		try {
			child.merge("hello");
			fail("Must have failed by this point.");
		}
		catch (IllegalArgumentException expected) {
		}
	}

	public void testMergeEmptyChild() {
		ManagedSet parent = new ManagedSet();
		parent.add("one");
		parent.add("two");
		ManagedSet child = new ManagedSet();
		child.setMergeEnabled(true);
		Set mergedSet = (Set) child.merge(parent);
		assertEquals("merge() obviously did not work.", 2, mergedSet.size());
	}

	public void testMergeChildValuesOverrideTheParents() {
		// asserts that the set contract is not violated during a merge() operation...
		ManagedSet parent = new ManagedSet();
		parent.add("one");
		parent.add("two");
		ManagedSet child = new ManagedSet();
		child.add("one");
		child.setMergeEnabled(true);
		Set mergedSet = (Set) child.merge(parent);
		assertEquals("merge() obviously did not work.", 2, mergedSet.size());
	}

}