source: trunk/quest-core-event-test/src/de/ugoe/cs/quest/coverage/SequenceToolsTest.java @ 433

package de.ugoe.cs.quest.coverage;

import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
import java.util.Set;
import de.ugoe.cs.quest.coverage.SequenceTools;
import de.ugoe.cs.quest.eventcore.Event;
import de.ugoe.cs.quest.usageprofiles.FirstOrderMarkovModel;
import de.ugoe.cs.quest.usageprofiles.IStochasticProcess;
import de.ugoe.cs.quest.usageprofiles.MockTrieBasedModel;

import org.junit.*;

import static org.junit.Assert.*;

/**
 * The class <code>SequenceToolsTest</code> contains tests for the class <code>{@link SequenceTools}</code>.
 *
 * @author Steffen Herbold
 * @version 1.0
 */
public class SequenceToolsTest {
        
        Collection<List<? extends Event<?>>> sequences;
        Set<List<? extends Event<?>>> subSequences;
        MockTrieBasedModel mockProcess;
        
        @Test
        public void testContainedSubSequences_1()
                throws Exception {
                int length = 2;

                Set<List<? extends Event<?>>> result = SequenceTools.containedSubSequences(sequences, length);

                assertNotNull(result);
                assertTrue(result.containsAll(subSequences));
                assertEquals(subSequences.size(), result.size());
        }
        
        @Test
        public void testContainedSubSequences_2()
                throws Exception {
                int length = 2;

                Set<List<? extends Event<?>>> result = SequenceTools.containedSubSequences(null, length);
                assertNotNull(result);
                assertTrue(result.isEmpty());
        }
        
        @Test(expected=java.security.InvalidParameterException.class)
        public void testContainedSubSequences_3()
                throws Exception {
                int length = 0;

                SequenceTools.containedSubSequences(sequences, length);
        }
        
        @Test(expected=java.security.InvalidParameterException.class)
        public void testContainedSubSequences_4()
                throws Exception {
                int length = -1;

                SequenceTools.containedSubSequences(sequences, length);
        }

        @Test
        public void testGenerateWeights_1()
                throws Exception {
                Map<List<? extends Event<?>>, Double> result = SequenceTools.generateWeights(mockProcess, subSequences);

                assertNotNull(result);
                Set<Entry<List<? extends Event<?>>, Double>> entrySet = result.entrySet();
                assertEquals(subSequences.size(),entrySet.size());
                for( Entry<List<? extends Event<?>>, Double> entry : entrySet ) {
                        assertEquals(Double.valueOf(2.0d), entry.getValue());
                        assertTrue(subSequences.contains(entry.getKey()));
                }
        }
        
        @Test
        public void testGenerateWeights_2()
                throws Exception {
                Map<List<? extends Event<?>>, Double> result = SequenceTools.generateWeights(null, subSequences);
                
                Set<Entry<List<? extends Event<?>>, Double>> entrySet = result.entrySet();
                assertEquals(subSequences.size(),entrySet.size());
                for( Entry<List<? extends Event<?>>, Double> entry : entrySet ) {
                        assertEquals(Double.valueOf(0.0d), entry.getValue());
                        assertTrue(subSequences.contains(entry.getKey()));
                }
        }
        
        @Test
        public void testGenerateWeights_3()
                throws Exception {
                Map<List<? extends Event<?>>, Double> result = SequenceTools.generateWeights(mockProcess, null);
                
                assertNotNull(result);
                assertTrue(result.isEmpty());
        }

        @Test
        public void testNumSequences_1()
                throws Exception {
                int length = 2;
                int expected = 49;

                long result = SequenceTools.numSequences(mockProcess, length);

                assertEquals(expected, result);
        }
        
        @Test
        public void testNumSequences_2()
                throws Exception {
                int length = 2;
                int expected = 49;

                long result = SequenceTools.numSequences(mockProcess, length);

                assertEquals(expected, result);
        }
        
        @Test(expected = java.security.InvalidParameterException.class )
        public void testNumSequences_3()
                throws Exception {
                int length = 0;

                SequenceTools.numSequences(mockProcess, length);
        }

        @Test(expected = java.security.InvalidParameterException.class )
        public void testNumSequences_4()
                throws Exception {
                IStochasticProcess process = new FirstOrderMarkovModel(new Random());
                int length = -1;

                SequenceTools.numSequences(process, length);
        }
        
        @Before
        public void setUp()
                throws Exception {
                sequences = new LinkedList<List<? extends Event<?>>>();
                List<Event<?>> sequence1 = new ArrayList<Event<?>>();
                sequence1.add(new Event<String>("a"));
                sequence1.add(new Event<String>("b"));
                sequence1.add(new Event<String>("r"));
                sequence1.add(new Event<String>("a"));
                List<Event<?>> sequence2 = new ArrayList<Event<?>>();
                sequence2.add(new Event<String>("c"));
                sequence2.add(new Event<String>("a"));
                sequence2.add(new Event<String>("d"));
                sequence2.add(new Event<String>("a"));
                sequence2.add(new Event<String>("b"));
                sequence2.add(new Event<String>("r"));
                sequence2.add(new Event<String>("a"));
                sequences.add(sequence1);
                sequences.add(sequence2);
                
                subSequences = new LinkedHashSet<List<? extends Event<?>>>();
                List<Event<?>> tmpList = new ArrayList<Event<?>>();
                tmpList.add(new Event<String>("a"));
                tmpList.add(new Event<String>("b"));
                subSequences.add(tmpList);
                tmpList = new ArrayList<Event<?>>();
                tmpList.add(new Event<String>("b"));
                tmpList.add(new Event<String>("r"));
                subSequences.add(tmpList);
                tmpList = new ArrayList<Event<?>>();
                tmpList.add(new Event<String>("r"));
                tmpList.add(new Event<String>("a"));
                subSequences.add(tmpList);
                tmpList = new ArrayList<Event<?>>();
                tmpList.add(new Event<String>("c"));
                tmpList.add(new Event<String>("a"));
                subSequences.add(tmpList);
                tmpList = new ArrayList<Event<?>>();
                tmpList.add(new Event<String>("a"));
                tmpList.add(new Event<String>("d"));
                subSequences.add(tmpList);
                tmpList = new ArrayList<Event<?>>();
                tmpList.add(new Event<String>("d"));
                tmpList.add(new Event<String>("a"));
                subSequences.add(tmpList);
                
                int markovOrder = 2;
                mockProcess = new MockTrieBasedModel(markovOrder, new Random());
                mockProcess.train(sequences);
        }

        public static void main(String[] args) {
                new org.junit.runner.JUnitCore().run(SequenceToolsTest.class);
        }
}