injectortest.java

来自「Wicket一个开发Java Web应用程序框架。它使得开发web应用程序变得容」· Java 代码 · 共 92 行

/*
 * 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.wicket.injection;

import java.lang.reflect.Field;

import junit.framework.TestCase;

import org.apache.wicket.injection.util.InternalTestObject;
import org.apache.wicket.injection.util.MockDependency;
import org.apache.wicket.injection.util.TestObject;

/**
 * Tests {@link Injector}
 * 
 * @author Igor Vaynberg (ivaynberg)
 * 
 */
public class InjectorTest extends TestCase
{
	private static MockDependency dependency = new MockDependency("inject");

	private static IFieldValueFactory factory = new IFieldValueFactory()
	{

		public Object getFieldValue(Field field, Object fieldOwner)
		{
			return dependency;
		}

		public boolean supportsField(Field field)
		{
			return true;
		}

	};

	/**
	 * Test injection
	 */
	public void testInjection()
	{
		TestObject testObject = new TestObject();

		Injector.getInstance().inject(testObject, factory);

		assertEquals(testObject.getDependency1().getMessage(), "inject");
		assertEquals(testObject.getDependency2().getMessage(), "dont-inject");
		assertEquals(testObject.getDependency3().getMessage(), "dont-inject");
		assertEquals(testObject.getDependency4().getMessage(), "inject");
	}

	/**
	 * Test abort injection on boundary class
	 */
	public void testBreakOnBoundary()
	{
		Injector injector = new Injector()
		{
			protected boolean isBoundaryClass(Class clazz)
			{
				return clazz.equals(InternalTestObject.class);
			}
		};

		TestObject testObject = new TestObject();

		injector.inject(testObject, factory);

		assertTrue(testObject.getDependency1() == null);
		assertEquals(testObject.getDependency2().getMessage(), "dont-inject");
		assertEquals(testObject.getDependency3().getMessage(), "dont-inject");
		assertEquals(testObject.getDependency4().getMessage(), "inject");

	}

}