storm-core/test/jvm/backtype/storm/metric/internal/CountStatAndMetricTest.java

/**
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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 backtype.storm.metric.internal;

import java.util.Map;
import java.util.HashMap;

import org.junit.Test;
import junit.framework.TestCase;
import static org.junit.Assert.*;

/**
 * Unit test for CountStatAndMetric
 */
public class CountStatAndMetricTest extends TestCase {
    final long TEN_MIN = 10 * 60 * 1000;
    final long THIRTY_SEC = 30 * 1000;
    final long THREE_HOUR = 3 * 60 * 60 * 1000;
    final long ONE_DAY = 24 * 60 * 60 * 1000;

    @Test
    public void testBasic() {
        long time = 0l;
        CountStatAndMetric count = new CountStatAndMetric(10, time);
        while (time < TEN_MIN) {
            //For this part of the test we interleve the differnt rotation types.
            count.incBy(50);
            time += THIRTY_SEC/2;
            count.rotateSched(time);
            count.incBy(50);
            time += THIRTY_SEC/2;
            assertEquals(100l, ((Long)count.getValueAndReset(time)).longValue());
        }

        long val = 100 * TEN_MIN/THIRTY_SEC;
        Map<String, Long> expected = new HashMap<String, Long>();
        expected.put("600", val);
        expected.put("10800", val);
        expected.put("86400", val);
        expected.put(":all-time", val);
        assertEquals(expected, count.getTimeCounts(time));

        while (time < THREE_HOUR) {
            count.incBy(100);
            time += THIRTY_SEC;
            assertEquals(100l, ((Long)count.getValueAndReset(time)).longValue());
        }

        val = 100 * THREE_HOUR/THIRTY_SEC;
        expected = new HashMap<String, Long>();
        expected.put("600", 100 * TEN_MIN/THIRTY_SEC);
        expected.put("10800", val);
        expected.put("86400", val);
        expected.put(":all-time", val);
        assertEquals(expected, count.getTimeCounts(time));

        while (time < ONE_DAY) {
            count.incBy(100);
            time += THIRTY_SEC;
            assertEquals(100l, ((Long)count.getValueAndReset(time)).longValue());
        }

        val = 100 * ONE_DAY/THIRTY_SEC;
        expected = new HashMap<String, Long>();
        expected.put("600", 100 * TEN_MIN/THIRTY_SEC);
        expected.put("10800", 100 * THREE_HOUR/THIRTY_SEC);
        expected.put("86400", val);
        expected.put(":all-time", val);
        assertEquals(expected, count.getTimeCounts(time));
    }
}