/**
* 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.yarn.server.sharedcachemanager.metrics;
import static org.junit.Assert.assertEquals;
import org.apache.hadoop.conf.Configuration;
import org.junit.Before;
import org.junit.Test;
public class TestCleanerMetrics {
Configuration conf = new Configuration();
CleanerMetrics cleanerMetrics;
@Before
public void init() {
cleanerMetrics = CleanerMetrics.getInstance();
}
@Test
public void testMetricsOverMultiplePeriods() {
simulateACleanerRun();
assertMetrics(4, 4, 1, 1);
simulateACleanerRun();
assertMetrics(4, 8, 1, 2);
}
public void simulateACleanerRun() {
cleanerMetrics.reportCleaningStart();
cleanerMetrics.reportAFileProcess();
cleanerMetrics.reportAFileDelete();
cleanerMetrics.reportAFileProcess();
cleanerMetrics.reportAFileProcess();
}
void assertMetrics(int proc, int totalProc, int del, int totalDel) {
assertEquals(
"Processed files in the last period are not measured correctly", proc,
cleanerMetrics.getProcessedFiles());
assertEquals("Total processed files are not measured correctly",
totalProc, cleanerMetrics.getTotalProcessedFiles());
assertEquals(
"Deleted files in the last period are not measured correctly", del,
cleanerMetrics.getDeletedFiles());
assertEquals("Total deleted files are not measured correctly",
totalDel, cleanerMetrics.getTotalDeletedFiles());
}
}