/*
* 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.hadoop.hbase.io.hadoopbackport;
import org.apache.hadoop.hbase.testclassification.MiscTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category({MiscTests.class, SmallTests.class})
public class TestThrottledInputStream {
@Test
public void testCalSleepTimeMs() {
// case 0: initial - no read, no sleep
assertEquals(0, ThrottledInputStream.calSleepTimeMs(0, 10000, 1000));
// case 1: no threshold
assertEquals(0, ThrottledInputStream.calSleepTimeMs(Long.MAX_VALUE, 0, 1000));
assertEquals(0, ThrottledInputStream.calSleepTimeMs(Long.MAX_VALUE, -1, 1000));
// case 2: too fast
assertEquals(1500, ThrottledInputStream.calSleepTimeMs(5, 2, 1000));
assertEquals(500, ThrottledInputStream.calSleepTimeMs(5, 2, 2000));
assertEquals(6500, ThrottledInputStream.calSleepTimeMs(15, 2, 1000));
// case 3: too slow
assertEquals(0, ThrottledInputStream.calSleepTimeMs(1, 2, 1000));
assertEquals(0, ThrottledInputStream.calSleepTimeMs(2, 2, 2000));
assertEquals(0, ThrottledInputStream.calSleepTimeMs(1, 2, 1000));
}
}