/*
* 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;
import org.apache.kafka.streams.kstream.internals.UnlimitedWindow;
import org.junit.Test;
import java.util.Map;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
public class UnlimitedWindowsTest {
private static long anyStartTime = 10L;
@Test
public void shouldSetWindowStartTime() {
assertEquals(anyStartTime, UnlimitedWindows.of().startOn(anyStartTime).startMs);
}
@Test(expected = IllegalArgumentException.class)
public void startTimeMustNotBeNegative() {
UnlimitedWindows.of().startOn(-1);
}
@Test
public void shouldThrowOnUntil() {
final UnlimitedWindows windowSpec = UnlimitedWindows.of();
try {
windowSpec.until(42);
fail("should not allow to set window retention time");
} catch (final IllegalArgumentException e) {
// expected
}
}
@Test
public void shouldIncludeRecordsThatHappenedOnWindowStart() {
UnlimitedWindows w = UnlimitedWindows.of().startOn(anyStartTime);
Map<Long, UnlimitedWindow> matchedWindows = w.windowsFor(w.startMs);
assertEquals(1, matchedWindows.size());
assertEquals(new UnlimitedWindow(anyStartTime), matchedWindows.get(anyStartTime));
}
@Test
public void shouldIncludeRecordsThatHappenedAfterWindowStart() {
UnlimitedWindows w = UnlimitedWindows.of().startOn(anyStartTime);
long timestamp = w.startMs + 1;
Map<Long, UnlimitedWindow> matchedWindows = w.windowsFor(timestamp);
assertEquals(1, matchedWindows.size());
assertEquals(new UnlimitedWindow(anyStartTime), matchedWindows.get(anyStartTime));
}
@Test
public void shouldExcludeRecordsThatHappenedBeforeWindowStart() {
UnlimitedWindows w = UnlimitedWindows.of().startOn(anyStartTime);
long timestamp = w.startMs - 1;
Map<Long, UnlimitedWindow> matchedWindows = w.windowsFor(timestamp);
assertTrue(matchedWindows.isEmpty());
}
}