java-design-patterns/circuit-breaker/src/test/java/com/iluwatar/circuitbreaker/MonitoringServiceTest.java

/*
 * The MIT License
 * Copyright © 2014-2019 Ilkka Seppälä
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.iluwatar.circuitbreaker;

import static org.junit.jupiter.api.Assertions.assertEquals;

import org.junit.jupiter.api.Test;

/**
 * Monitoring Service test
 */
public class MonitoringServiceTest {

  //long timeout, int failureThreshold, long retryTimePeriod
  @Test
  public void testLocalResponse() {
    var monitoringService = new MonitoringService();
    var response = monitoringService.localResourceResponse();
    assertEquals(response, "Local Service is working");
  }

  @Test
  public void testRemoteResponse() {
    var monitoringService = new MonitoringService();
    var circuitBreaker = new CircuitBreaker(1, 1, 100);
    //Set time in past to make the server work
    var serverStartTime = System.nanoTime() / 10;
    var response = monitoringService.remoteResourceResponse(circuitBreaker, serverStartTime);
    assertEquals(response, "Delayed service is working");
  }

  @Test
  public void testRemoteResponse2() {
    var monitoringService = new MonitoringService();
    var circuitBreaker = new CircuitBreaker(1, 1, 100);
    //Set time as current time as initially server fails
    var serverStartTime = System.nanoTime();
    var response = monitoringService.remoteResourceResponse(circuitBreaker, serverStartTime);
    assertEquals(response, "Remote service not responding");
  }
}