| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 opennlp.tools.ml.model; |
| |
| import java.io.IOException; |
| |
| import org.junit.jupiter.api.Test; |
| |
| import opennlp.tools.util.ObjectStream; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertNotEquals; |
| import static org.junit.jupiter.api.Assertions.assertNotNull; |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| |
| public class ChecksumEventStreamTest { |
| |
| @Test |
| void testCalculateChecksumEquality() throws IOException { |
| ChecksumEventStream ces1 = new ChecksumEventStream(createEventStreamFull()); |
| ChecksumEventStream ces2 = new ChecksumEventStream(createEventStreamFull()); |
| consumeEventStream(ces1, 7); |
| consumeEventStream(ces2, 7); |
| |
| long checksum1 = ces1.calculateChecksum(); |
| long checksum2 = ces2.calculateChecksum(); |
| assertTrue(checksum1 != 0); |
| assertTrue(checksum2 != 0); |
| assertEquals(checksum1, checksum2); |
| } |
| |
| @Test |
| void testCalculateChecksumMismatch() throws IOException { |
| ChecksumEventStream ces1 = new ChecksumEventStream(createEventStreamFull()); |
| ChecksumEventStream ces2 = new ChecksumEventStream(createEventStreamPartial()); |
| consumeEventStream(ces1, 7); |
| consumeEventStream(ces2, 2); |
| |
| long checksum1 = ces1.calculateChecksum(); |
| long checksum2 = ces2.calculateChecksum(); |
| assertTrue(checksum1 != 0); |
| assertTrue(checksum2 != 0); |
| assertNotEquals(checksum1, checksum2); |
| } |
| |
| private ObjectStream<Event> createEventStreamFull() { |
| // He belongs to <START:org> Apache Software Foundation <END> . |
| return new SimpleEventStreamBuilder() |
| .add("other/w=he n1w=belongs n2w=to po=other pow=other,He powf=other,ic ppo=other") |
| .add("other/w=belongs p1w=he n1w=to n2w=apache po=other pow=other,belongs powf=other,lc ppo=other") |
| .add("other/w=to p1w=belongs p2w=he n1w=apache n2w=software po=other pow=other,to" + |
| " powf=other,lc ppo=other") |
| .add("org-start/w=apache p1w=to p2w=belongs n1w=software n2w=foundation po=other pow=other,Apache" + |
| " powf=other,ic ppo=other") |
| .add("org-cont/w=software p1w=apache p2w=to n1w=foundation n2w=. po=org-start" + |
| " pow=org-start,Software powf=org-start,ic ppo=other") |
| .add("org-cont/w=foundation p1w=software p2w=apache n1w=. po=org-cont pow=org-cont,Foundation" + |
| " powf=org-cont,ic ppo=org-start") |
| .add("other/w=. p1w=foundation p2w=software po=org-cont pow=org-cont,. powf=org-cont,other" + |
| " ppo=org-cont") |
| .build(); |
| } |
| |
| private ObjectStream<Event> createEventStreamPartial() { |
| // He . |
| return new SimpleEventStreamBuilder() |
| .add("other/w=he n1w=belongs n2w=to po=other pow=other,He powf=other,ic ppo=other") |
| .add("other/w=. p1w=foundation p2w=software po=org-cont pow=org-cont,. powf=org-cont,other" + |
| " ppo=org-cont") |
| .build(); |
| } |
| |
| private void consumeEventStream(ObjectStream<Event> eventStream, int eventCount) throws IOException { |
| for (int i = 0; i < eventCount; i++) { |
| assertNotNull(eventStream.read()); |
| } |
| } |
| } |