AssertThatJUnit410RulesWorks.java

/*
 * Copyright 2009 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 samples.junit410.rules;

import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.MethodRule;
import org.junit.rules.TestName;
import org.junit.runner.RunWith;
import org.junit.runners.model.FrameworkMethod;
import org.junit.runners.model.Statement;
import org.powermock.modules.junit4.PowerMockRunner;

import java.util.LinkedList;
import java.util.List;

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

/**
 * This test demonstrates that JUnit 4.10 rules works together with PowerMock
 */
@RunWith(PowerMockRunner.class)
public class AssertThatJUnit410RulesWorks {
	private static Object BEFORE = new Object();

	private List<Object> objects = new LinkedList<Object>();

	@Rule
	public MyRule rule = new MyRule();

	@Rule
	public TestName testName = new TestName();

	@Test
	public void assertThatJUnit410RulesWorks() throws Exception {
		assertEquals(1, objects.size());
		assertSame(BEFORE, objects.get(0));
		assertEquals("assertThatJUnit410RulesWorks", testName.getMethodName());
	}

	private class MyRule implements MethodRule {
		public Statement apply(final Statement base, FrameworkMethod method, Object target) {
			return new Statement() {
				@Override
				public void evaluate() throws Throwable {
					objects.add(BEFORE);
					base.evaluate();
				}
			};
		}
	}

}