Delete DateFormatRunnableTestMultiThread.java
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/**
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* The MIT License
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* Copyright (c) 2016 Thomas Bauer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package com.iluwatar.tls;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.List;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.fail;
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/**
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*
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* Test of the Callable
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*
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* In this test {@link DateFormatCallable} is used by 4 threads in parallel
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* <p>
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* After a successful run 5 date values should be in the result object of each thread. All dates
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* should have the same value (15.11.2015). To avoid problems with time zone not the date instances
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* themselves are compared by the test. For the test the dates are converted into string format DD.MM.YYY
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* <p>
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* Additionally the number of list entries are tested for both the list with the date values
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* and the list with the exceptions
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*
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* @author Thomas Bauer, January 2017
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*
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*/
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public class DateFormatRunnableTestMultiThread {
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// Class variables used in setup() have to be static because setup() has to be static
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/**
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* Result object given back by DateFormatCallable, one for each thread
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* -- Array with converted date values
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* -- Array with thrown exceptions
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*/
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static Result[] result = new Result[4];
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/**
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* The date values created by the run of of DateFormatRunnalbe. List will be filled in the setup() method
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*/
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@SuppressWarnings("serial")
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static class StringArrayList extends ArrayList<String> {
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/* nothing needed here */
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}
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static List<String>[] createdDateValues = new StringArrayList[4];
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/**
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* Expected number of date values in the date value list created by each thread
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*/
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int expectedCounterDateValues = 5;
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/**
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* Expected number of exceptions in the exception list created by each thread
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*/
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int expectedCounterExceptions = 0;
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/**
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* Expected content of the list containing the date values created by each thread
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*/
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List<String> expectedDateValues = Arrays.asList("15.11.2015", "15.11.2015", "15.11.2015", "15.11.2015", "15.11.2015");
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/**
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* Run Callable and prepare results for usage in the test methods
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*/
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@BeforeClass
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public static void setup() {
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// Create a callable
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DateFormatCallable callableDf = new DateFormatCallable("dd/MM/yyyy", "15/12/2015");
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// start thread using the Callable instance
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ExecutorService executor = Executors.newCachedThreadPool();
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Future<Result> futureResult1 = executor.submit(callableDf);
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Future<Result> futureResult2 = executor.submit(callableDf);
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Future<Result> futureResult3 = executor.submit(callableDf);
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Future<Result> futureResult4 = executor.submit(callableDf);
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try {
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result[0] = futureResult1.get();
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result[1] = futureResult2.get();
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result[2] = futureResult3.get();
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result[3] = futureResult4.get();
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for (int i = 0; i < result.length; i++) {
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createdDateValues[i] = convertDatesToString(result[i]);
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}
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} catch (Exception e) {
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fail("Setup failed: " + e);
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}
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executor.shutdown();
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}
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private static List<String> convertDatesToString(Result res) {
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// Format date value as DD.MM.YYYY
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if (res == null || res.getDateList() == null || res.getDateList().size() == 0) {
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return null;
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}
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List<String> returnList = new StringArrayList();
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for (Date dt : res.getDateList()) {
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Calendar cal = Calendar.getInstance();
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cal.setTime(dt);
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returnList.add(cal.get(Calendar.DAY_OF_MONTH) + "." + cal.get(Calendar.MONTH) + "." + cal.get(Calendar.YEAR));
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}
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return returnList;
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}
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/**
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* Test date values after the run of DateFormatRunnalbe. A correct run should deliver 5 times 15.12.2015
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* by each thread
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*/
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@Test
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public void testDateValues() {
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for (int i = 0; i < createdDateValues.length; i++) {
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assertEquals(expectedDateValues, createdDateValues[i]);
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}
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}
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/**
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* Test number of dates in the list after the run of DateFormatRunnalbe. A correct run should
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* deliver 5 date values by each thread
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*/
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@Test
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public void testCounterDateValues() {
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for (int i = 0; i < result.length; i++) {
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assertEquals(expectedCounterDateValues, result[i].getDateList().size());
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}
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}
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/**
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* Test number of Exceptions in the list after the run of DateFormatRunnalbe. A correct run should
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* deliver no exceptions
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*/
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@Test
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public void testCounterExceptions() {
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for (int i = 0; i < result.length; i++) {
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assertEquals(expectedCounterExceptions, result[i].getExceptionList().size());
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}
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}
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}
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