ConfigRefreshTests.java

/*
 *
 *  * Copyright 2013-2016 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.cloud.netflix.eureka.config;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.cloud.context.scope.refresh.RefreshScopeRefreshedEvent;
import org.springframework.cloud.netflix.eureka.sample.RefreshEurekaSampleApplication;
import org.springframework.context.ApplicationEventPublisher;
import org.springframework.test.context.junit4.SpringRunner;

import com.netflix.discovery.EurekaClient;

import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

/**
 * @author Ryan Baxter
 */
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = RefreshEurekaSampleApplication.class)
public class ConfigRefreshTests {

	@Autowired
	private ApplicationEventPublisher publisher;

	@Autowired
	//Mocked in RefreshEurekaSampleApplication
	private EurekaClient client;

	@Test
	// This test is used to verify that getApplications is called the correct number of times
	// when a refresh event is fired.  The getApplications call in EurekaClientConfigurationRefresher.onApplicationEvent
	// ensures that the EurekaClient bean is recreated after a refresh event and that we reregister the client with
	//the server
	public void verifyGetApplications() {
		if(publisher != null) {
			publisher.publishEvent(new RefreshScopeRefreshedEvent());
		}
		verify(client, times(3)).getApplications();
	}
}