/** * 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.ambari.server.controller.metrics; import java.util.ArrayList; import java.util.List; import org.apache.ambari.server.controller.jmx.JMXMetricHolder; import org.codehaus.jackson.map.DeserializationConfig; import org.codehaus.jackson.map.ObjectMapper; import org.codehaus.jackson.map.ObjectReader; import org.junit.Assert; import org.junit.Test; public class ThreadPoolEnabledPropertyProviderTest { @Test public void testGetCacheKeyForException() throws Exception { ObjectMapper jmxObjectMapper = new ObjectMapper(); jmxObjectMapper.configure(DeserializationConfig.Feature.USE_ANNOTATIONS, false); ObjectReader jmxObjectReader = jmxObjectMapper.reader(JMXMetricHolder.class); List<Exception> exceptions = new ArrayList<>(); for (int i = 0; i < 2; i++) { try{ jmxObjectReader.readValue("Invalid string"); } catch (Exception e) { // Exception messages will be different with each iteration. exceptions.add(e); } } Assert.assertEquals(ThreadPoolEnabledPropertyProvider.getCacheKeyForException(exceptions.get(0)), ThreadPoolEnabledPropertyProvider.getCacheKeyForException(exceptions.get(1))); } }