/** * Copyright (c) 2008-2010 Andrey Somov * * 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.yaml.snakeyaml; import java.io.IOException; import junit.framework.TestCase; import org.yaml.snakeyaml.constructor.Constructor; public class StressTest extends TestCase { String doc; public void setUp() throws IOException { doc = Util.getLocalResource("specification/example2_27.yaml"); } public void testPerformance() throws IOException { long time1 = System.nanoTime(); new Yaml(new Loader(new Constructor(Invoice.class))); long time2 = System.nanoTime(); float duration = (time2 - time1) / 1000000; System.out.println("Init was " + duration + " ms."); Yaml yaml = new Yaml(new Loader(new Constructor(Invoice.class))); time1 = System.nanoTime(); yaml.load(doc); time2 = System.nanoTime(); duration = (time2 - time1) / 1000000; System.out.println("\nSingle load was " + duration + " ms."); yaml = new Yaml(new Loader(new Constructor(Invoice.class))); int[] range = new int[] { 1000, 2000 }; System.out.println("\nOne instance."); for (int number : range) { time1 = System.nanoTime(); for (int i = 0; i < number; i++) { yaml.load(doc); } time2 = System.nanoTime(); duration = ((time2 - time1) / 1000000) / (float) number; System.out.println("Duration for r=" + number + " was " + duration + " ms/load."); // cobertura may make it very slow if (duration > 3) { System.err.println("!!!!!! Too long. Expected <1 but was " + duration); } // assertTrue("duration=" + duration, duration < 3); } System.out.println("\nMany instances."); for (int number : range) { time1 = System.nanoTime(); for (int i = 0; i < number; i++) { yaml = new Yaml(new Loader(new Constructor(Invoice.class))); yaml.load(doc); } time2 = System.nanoTime(); duration = ((time2 - time1) / 1000000) / (float) number; System.out.println("Duration for r=" + number + " was " + duration + " ms/load."); // cobertura may make it very slow if (duration > 3) { System.err.println("!!!!!! Too long. Expected <1 but was " + duration); } // assertTrue("duration=" + duration, duration < 3); } } }