/*
* 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 org.apache.kafka.streams.kstream.internals;
import org.junit.Test;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class SessionWindowTest {
private long start = 50;
private long end = 100;
private final SessionWindow window = new SessionWindow(start, end);
private final TimeWindow timeWindow = new TimeWindow(start, end);
@Test
public void shouldNotOverlapIfOtherWindowIsBeforeThisWindow() {
/*
* This: [-------]
* Other: [---]
*/
assertFalse(window.overlap(new SessionWindow(0, 25)));
assertFalse(window.overlap(new SessionWindow(0, start - 1)));
assertFalse(window.overlap(new SessionWindow(start - 1, start - 1)));
}
@Test
public void shouldOverlapIfOtherWindowEndIsWithinThisWindow() {
/*
* This: [-------]
* Other: [---------]
*/
assertTrue(window.overlap(new SessionWindow(0, start)));
assertTrue(window.overlap(new SessionWindow(0, start + 1)));
assertTrue(window.overlap(new SessionWindow(0, 75)));
assertTrue(window.overlap(new SessionWindow(0, end - 1)));
assertTrue(window.overlap(new SessionWindow(0, end)));
assertTrue(window.overlap(new SessionWindow(start - 1, start)));
assertTrue(window.overlap(new SessionWindow(start - 1, start + 1)));
assertTrue(window.overlap(new SessionWindow(start - 1, 75)));
assertTrue(window.overlap(new SessionWindow(start - 1, end - 1)));
assertTrue(window.overlap(new SessionWindow(start - 1, end)));
}
@Test
public void shouldOverlapIfOtherWindowContainsThisWindow() {
/*
* This: [-------]
* Other: [------------------]
*/
assertTrue(window.overlap(new SessionWindow(0, end)));
assertTrue(window.overlap(new SessionWindow(0, end + 1)));
assertTrue(window.overlap(new SessionWindow(0, 150)));
assertTrue(window.overlap(new SessionWindow(start - 1, end)));
assertTrue(window.overlap(new SessionWindow(start - 1, end + 1)));
assertTrue(window.overlap(new SessionWindow(start - 1, 150)));
assertTrue(window.overlap(new SessionWindow(start, end)));
assertTrue(window.overlap(new SessionWindow(start, end + 1)));
assertTrue(window.overlap(new SessionWindow(start, 150)));
}
@Test
public void shouldOverlapIfOtherWindowIsWithinThisWindow() {
/*
* This: [-------]
* Other: [---]
*/
assertTrue(window.overlap(new SessionWindow(start, start)));
assertTrue(window.overlap(new SessionWindow(start, 75)));
assertTrue(window.overlap(new SessionWindow(start, end)));
assertTrue(window.overlap(new SessionWindow(75, end)));
assertTrue(window.overlap(new SessionWindow(end, end)));
}
@Test
public void shouldOverlapIfOtherWindowStartIsWithinThisWindow() {
/*
* This: [-------]
* Other: [-------]
*/
assertTrue(window.overlap(new SessionWindow(start, end + 1)));
assertTrue(window.overlap(new SessionWindow(start, 150)));
assertTrue(window.overlap(new SessionWindow(75, end + 1)));
assertTrue(window.overlap(new SessionWindow(75, 150)));
assertTrue(window.overlap(new SessionWindow(end, end + 1)));
assertTrue(window.overlap(new SessionWindow(end, 150)));
}
@Test
public void shouldNotOverlapIsOtherWindowIsAfterThisWindow() {
/*
* This: [-------]
* Other: [---]
*/
assertFalse(window.overlap(new SessionWindow(end + 1, end + 1)));
assertFalse(window.overlap(new SessionWindow(end + 1, 150)));
assertFalse(window.overlap(new SessionWindow(125, 150)));
}
@Test(expected = IllegalArgumentException.class)
public void cannotCompareSessionWindowWithDifferentWindowType() {
window.overlap(timeWindow);
}
}