/* * This file is part of the GeoLatte project. * * GeoLatte is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * GeoLatte is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with GeoLatte. If not, see <http://www.gnu.org/licenses/>. * * Copyright (C) 2010 - 2010 and Ownership of code is shared by: * Qmino bvba - Romeinsestraat 18 - 3001 Heverlee (http://www.qmino.com) * Geovise bvba - Generaal Eisenhowerlei 9 - 2140 Antwerpen (http://www.geovise.com) */ package org.geolatte.common.transformer; import org.geolatte.testobjects.ProgrammableFilter; import org.junit.Assert; import org.junit.Test; import java.util.ArrayList; import java.util.Arrays; /** * <p> * Unit test for the DefaultFilter class. * </p> * <p> * <i>Creation-Date</i>: 03-Jun-2010<br> * <i>Creation-Time</i>: 10:09:22<br> * </p> * * @author Bert Vanhooff * @author <a href="http://www.qmino.com">Qmino bvba</a> * @since SDK1.5 */ public class FilterTest { /** * Tests the constructor of DefaultFilter */ @SuppressWarnings({"CatchGenericClass"}) @Test public void test_Constructor() { try { DefaultFilter<Object> transformer = new DefaultFilter<Object>(null); } catch (Throwable t) { Assert.assertSame(IllegalArgumentException.class, t.getClass()); } try { new DefaultFilter<String>(new ProgrammableFilter<String>()); } catch (Throwable t) { Assert.fail("Should not throw an exception"); } } /** * Tests basic execution of a DefaultFilter by feeding it input data and checking whether the correct elements are filtered out. * Also tests whether invoking output() again yields no results. */ @Test public void test_Execute() { ArrayList<String> input = new ArrayList<String>(Arrays.asList("Scarlett", "Natalie", "Rachel", "Cameron", "McAdams", "Dunst")); Integer[] filteredElements = new Integer[] {2, 4, 6}; ArrayList<String> expectedOutput = new ArrayList<String>(Arrays.asList("Scarlett", "Rachel", "McAdams")); DefaultFilter<String> transformer = new DefaultFilter<String>(new ProgrammableFilter<String>(filteredElements)); transformer.setInput(input); int transformationStep = 0; for (String outputElement : transformer.output()) { Assert.assertEquals(expectedOutput.get(transformationStep), outputElement); transformationStep++; } Assert.assertEquals(expectedOutput.size(), transformationStep); // Should not recurse.. the transformation has already provided all of its output values in the previous loop for (String outputElement : transformer.output()) { Assert.fail("DefaultFilter should not continue to provide output when the output() method is invoked multiple times."); } } }