/*
* Copyright 2012, Facebook, Inc.
*
* 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 com.facebook.LinkBench;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.junit.Test;
import com.facebook.LinkBench.stats.LatencyStats;
public class TestStats extends TestCase {
@Test
public void testBucketing() {
// 0 microseconds until 100 seconds
for (long us = 0; us < 100 * 1000 * 1000; us += 100 ) {
int bucket = LatencyStats.latencyToBucket(us);
try {
assertTrue(bucket >= 0);
assertTrue(bucket < LatencyStats.NUM_BUCKETS);
long range[] = LatencyStats.bucketBound(bucket);
assertTrue(us >= range[0]);
assertTrue(us < range[1]);
} catch (AssertionFailedError e) {
System.err.println("Failed for " + us + "us, bucket=" + bucket);
throw e;
}
}
}
}