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Spring Framework example source code file (ParameterizedDependencyInjectionTests.java)

This example Spring Framework source code file (ParameterizedDependencyInjectionTests.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

afterclass, applicationcontext, arraylist, autowired, employee, parameterizeddependencyinjectiontests, smith, smith, string, string, testcontextmanager, testcontextmanager, util, verifying, verifying

The Spring Framework ParameterizedDependencyInjectionTests.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.test.context.junit4;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;

import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import org.springframework.beans.Employee;
import org.springframework.beans.Pet;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.TestContextManager;
import org.springframework.test.context.TestExecutionListeners;
import org.springframework.test.context.support.DependencyInjectionTestExecutionListener;

/**
 * Simple JUnit 4 based unit test which demonstrates how to use JUnit's
 * {@link Parameterized} Runner in conjunction with
 * {@link ContextConfiguration @ContextConfiguration}, the
 * {@link DependencyInjectionTestExecutionListener}, and a
 * {@link TestContextManager} to provide dependency injection to a
 * <em>parameterized test instance.
 *
 * @author Sam Brannen
 * @since 2.5
 */
@RunWith(Parameterized.class)
@ContextConfiguration
@TestExecutionListeners( { DependencyInjectionTestExecutionListener.class })
public class ParameterizedDependencyInjectionTests {

	private static final List<Employee> employees = new ArrayList();

	@Autowired
	private ApplicationContext applicationContext;

	@Autowired
	private Pet pet;

	private final String employeeBeanName;
	private final String employeeName;

	private final TestContextManager testContextManager;


	public ParameterizedDependencyInjectionTests(final String employeeBeanName, final String employeeName)
			throws Exception {
		this.testContextManager = new TestContextManager(getClass());
		this.employeeBeanName = employeeBeanName;
		this.employeeName = employeeName;
	}

	@Parameters
	public static Collection<String[]> employeeData() {
		return Arrays.asList(new String[][] { { "employee1", "John Smith" }, { "employee2", "Jane Smith" } });
	}

	@BeforeClass
	public static void clearEmployees() {
		employees.clear();
	}

	@Before
	public void injectDependencies() throws Throwable {
		this.testContextManager.prepareTestInstance(this);
	}

	@Test
	public final void verifyPetAndEmployee() {

		// Verifying dependency injection:
		assertNotNull("The pet field should have been autowired.", this.pet);

		// Verifying 'parameterized' support:
		final Employee employee = (Employee) this.applicationContext.getBean(this.employeeBeanName);
		employees.add(employee);
		assertEquals("Verifying the name of the employee configured as bean [" + this.employeeBeanName + "].",
			this.employeeName, employee.getName());
	}

	@AfterClass
	public static void verifyNumParameterizedRuns() {
		assertEquals("Verifying the number of times the parameterized test method was executed.",
			employeeData().size(), employees.size());
	}

}

Other Spring Framework examples (source code examples)

Here is a short list of links related to this Spring Framework ParameterizedDependencyInjectionTests.java source code file:

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