|
Java example source code file (ThresholdCircuitBreakerTest.java)
The ThresholdCircuitBreakerTest.java Java example source code/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.apache.commons.lang3.concurrent; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertTrue; import org.junit.Test; /** * Test class for {@code ThresholdCircuitBreaker}. */ public class ThresholdCircuitBreakerTest { /** * Threshold used in tests. */ private static final long threshold = 10L; private static final long zeroThreshold = 0L; /** * Tests that the threshold is working as expected when incremented and no exception is thrown. */ @Test public void testThreshold() { ThresholdCircuitBreaker circuit = new ThresholdCircuitBreaker(threshold); circuit.incrementAndCheckState(9L); assertFalse("Circuit opened before reaching the threshold", circuit.incrementAndCheckState(1L)); } /** * Tests that exceeding the threshold raises an exception. */ @Test public void testThresholdCircuitBreakingException() { ThresholdCircuitBreaker circuit = new ThresholdCircuitBreaker(threshold); circuit.incrementAndCheckState(9L); assertTrue("The circuit was spposed to be open after increment above the threshold", circuit.incrementAndCheckState(2L)); } /** * Test that when threshold is zero, the circuit breaker is always open. */ @Test public void testThresholdEqualsZero() { ThresholdCircuitBreaker circuit = new ThresholdCircuitBreaker(zeroThreshold); assertTrue("When the threshold is zero, the circuit is supposed to be always open", circuit.incrementAndCheckState(0L)); } /** * Tests that closing a {@code ThresholdCircuitBreaker} resets the internal counter. */ @Test public void testClosingThresholdCircuitBreaker() { ThresholdCircuitBreaker circuit = new ThresholdCircuitBreaker(threshold); circuit.incrementAndCheckState(9L); circuit.close(); // now the internal counter is back at zero, not 9 anymore. So it is safe to increment 9 again assertFalse("Internal counter was not reset back to zero", circuit.incrementAndCheckState(9L)); } /** * Tests that we can get the threshold value correctly. */ @Test public void testGettingThreshold() { ThresholdCircuitBreaker circuit = new ThresholdCircuitBreaker(threshold); assertEquals("Wrong value of threshold", Long.valueOf(threshold), Long.valueOf(circuit.getThreshold())); } } Other Java examples (source code examples)Here is a short list of links related to this Java ThresholdCircuitBreakerTest.java source code file: |
... this post is sponsored by my books ... | |
![]() #1 New Release! |
![]() FP Best Seller |
Copyright 1998-2024 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.