// Copyright 2012 Georg-August-Universität Göttingen, Germany
//
// 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 de.ugoe.cs.autoquest.usageprofiles;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Random;
import org.junit.*;
import de.ugoe.cs.autoquest.eventcore.Event;
import de.ugoe.cs.autoquest.eventcore.StringEventType;
import de.ugoe.cs.autoquest.usageprofiles.FirstOrderMarkovModel;
import de.ugoe.cs.autoquest.usageprofiles.HighOrderMarkovModel;
import de.ugoe.cs.autoquest.usageprofiles.ModelFlattener;
import de.ugoe.cs.autoquest.usageprofiles.PredictionByPartialMatch;
import de.ugoe.cs.autoquest.usageprofiles.TrieNode;
import static org.junit.Assert.*;
/**
* The class ModelFlattenerTest
contains tests for the class
* {@link ModelFlattener}
.
*
* @author Steffen Herbold
* @version 1.0
*/
public class ModelFlattenerTest {
List sequence;
private static void assertCollectionContent(Collection> c1, Collection> c2) {
assertEquals(c1.size(), c2.size());
for (Object obj : c1) {
assertTrue(c2.contains(obj));
}
}
@Test
public void testFlattenHighOrderMarkovModel_1() throws Exception {
ModelFlattener fixture = new ModelFlattener();
HighOrderMarkovModel model = new HighOrderMarkovModel(2, new Random());
Collection> sequences = new ArrayList>();
sequences.add(sequence);
model.train(sequences);
Collection expectedSymbols = new HashSet();
expectedSymbols.add(new Event(new StringEventType("a-=-END")));
expectedSymbols.add(new Event(new StringEventType("a-=-b")));
expectedSymbols.add(new Event(new StringEventType("a-=-c")));
expectedSymbols.add(new Event(new StringEventType("a-=-d")));
expectedSymbols.add(new Event(new StringEventType("b-=-r")));
expectedSymbols.add(new Event(new StringEventType("c-=-a")));
expectedSymbols.add(new Event(new StringEventType("d-=-a")));
expectedSymbols.add(new Event(new StringEventType("r-=-a")));
expectedSymbols.add(new Event(new StringEventType("START-=-a")));
FirstOrderMarkovModel result = fixture.flattenHighOrderMarkovModel(model);
assertCollectionContent(expectedSymbols, result.getEvents());
TrieNode root = result.trie.find(null);
TrieNode root_aEnd = root.getChild(new Event(new StringEventType("a-=-END")));
TrieNode root_ab = root.getChild(new Event(new StringEventType("a-=-b")));
TrieNode root_ab_br = root_ab.getChild(new Event(new StringEventType("b-=-r")));
TrieNode root_ac = root.getChild(new Event(new StringEventType("a-=-c")));
TrieNode root_ac_ca = root_ac.getChild(new Event(new StringEventType("c-=-a")));
TrieNode root_ad = root.getChild(new Event(new StringEventType("a-=-d")));
TrieNode root_ad_da = root_ad.getChild(new Event(new StringEventType("d-=-a")));
TrieNode root_br = root.getChild(new Event(new StringEventType("b-=-r")));
TrieNode root_br_ra = root_br.getChild(new Event(new StringEventType("r-=-a")));
TrieNode root_ca = root.getChild(new Event(new StringEventType("c-=-a")));
TrieNode root_ca_ad = root_ca.getChild(new Event(new StringEventType("a-=-d")));
TrieNode root_da = root.getChild(new Event(new StringEventType("d-=-a")));
TrieNode root_da_ab = root_da.getChild(new Event(new StringEventType("a-=-b")));
TrieNode root_ra = root.getChild(new Event(new StringEventType("r-=-a")));
TrieNode root_ra_ac = root_ra.getChild(new Event(new StringEventType("a-=-c")));
TrieNode root_ra_aEnd = root_ra.getChild(new Event(new StringEventType("a-=-END")));
TrieNode root_startA = root.getChild(new Event(new StringEventType("START-=-a")));
TrieNode root_startA_ab =
root_startA.getChild(new Event(new StringEventType("a-=-b")));
assertEquals(1, root_aEnd.getCount());
assertTrue(root_aEnd.isLeaf());
assertEquals(2, root_ab.getCount());
assertEquals(1, root_ab.getChildren().size());
assertEquals(2, root_ab_br.getCount());
assertTrue(root_ab_br.isLeaf());
assertEquals(1, root_ac.getCount());
assertEquals(1, root_ac.getChildren().size());
assertEquals(1, root_ac_ca.getCount());
assertTrue(root_ac_ca.isLeaf());
assertEquals(1, root_ad.getCount());
assertEquals(1, root_ad.getChildren().size());
assertEquals(1, root_ad_da.getCount());
assertTrue(root_ad_da.isLeaf());
assertEquals(2, root_br.getCount());
assertEquals(1, root_br.getChildren().size());
assertEquals(2, root_br_ra.getCount());
assertTrue(root_br_ra.isLeaf());
assertEquals(1, root_ca.getCount());
assertEquals(1, root_ca.getChildren().size());
assertEquals(1, root_ca_ad.getCount());
assertTrue(root_ca_ad.isLeaf());
assertEquals(1, root_da.getCount());
assertEquals(1, root_da.getChildren().size());
assertEquals(1, root_da_ab.getCount());
assertTrue(root_da_ab.isLeaf());
assertEquals(2, root_ra.getCount());
assertEquals(2, root_ra.getChildren().size());
assertEquals(1, root_ra_ac.getCount());
assertTrue(root_ra_ac.isLeaf());
assertEquals(1, root_ra_aEnd.getCount());
assertTrue(root_ra_aEnd.isLeaf());
assertEquals(1, root_startA.getCount());
assertEquals(1, root_startA.getChildren().size());
assertEquals(1, root_startA_ab.getCount());
assertTrue(root_startA_ab.isLeaf());
}
@Test
public void testFlattenPredictionByPartialMatch_1() throws Exception {
ModelFlattener fixture = new ModelFlattener();
PredictionByPartialMatch model = new PredictionByPartialMatch(1, new Random());
FirstOrderMarkovModel result = fixture.flattenPredictionByPartialMatch(model);
assertEquals(null, result);
}
@Before
public void setUp() throws Exception {
sequence = new ArrayList();
sequence.add(new Event(new StringEventType("a")));
sequence.add(new Event(new StringEventType("b")));
sequence.add(new Event(new StringEventType("r")));
sequence.add(new Event(new StringEventType("a")));
sequence.add(new Event(new StringEventType("c")));
sequence.add(new Event(new StringEventType("a")));
sequence.add(new Event(new StringEventType("d")));
sequence.add(new Event(new StringEventType("a")));
sequence.add(new Event(new StringEventType("b")));
sequence.add(new Event(new StringEventType("r")));
sequence.add(new Event(new StringEventType("a")));
}
public static void main(String[] args) {
new org.junit.runner.JUnitCore().run(ModelFlattenerTest.class);
}
}