LogicAndTestInSameClassTest.java

/*
 * Copyright 2008 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.junit4.singleton;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import samples.singleton.StaticService;

import static org.easymock.EasyMock.expect;
import static org.junit.Assert.assertEquals;
import static org.powermock.api.easymock.PowerMock.*;

/**
 * A simple test that asserts that it's possible execute a test from the same
 * class that defines the logic to test.
 */
@RunWith(PowerMockRunner.class)
@PrepareForTest( { StaticService.class, LogicAndTestInSameClassTest.class })
public class LogicAndTestInSameClassTest {

	private static String invokeMethod() {
		return StaticService.say("hello");
	}

	@Test
	public void assertThatTestAndInstanceCanBeInSameClass() throws Exception {
		mockStatic(StaticService.class);
		String expected = "Hello altered World";
		expect(StaticService.say("hello")).andReturn("Hello altered World");
		replayAll();
		assertEquals(expected, LogicAndTestInSameClassTest.invokeMethod());
		verifyAll();
	}
}