| /* |
| * Copyright 2017, OpenCensus Authors |
| * |
| * 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 io.opencensus.implcore.stats; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import io.opencensus.common.Duration; |
| import io.opencensus.common.Timestamp; |
| import io.opencensus.implcore.stats.MutableAggregation.MutableMean; |
| import io.opencensus.stats.Aggregation.Mean; |
| import io.opencensus.stats.Measure.MeasureDouble; |
| import io.opencensus.tags.TagValue; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link IntervalBucket}. */ |
| @RunWith(JUnit4.class) |
| public class IntervalBucketTest { |
| |
| @Rule public final ExpectedException thrown = ExpectedException.none(); |
| |
| private static final double TOLERANCE = 1e-6; |
| private static final MeasureDouble MEASURE_DOUBLE = |
| MeasureDouble.create("measure1", "description", "1"); |
| private static final Duration MINUTE = Duration.create(60, 0); |
| private static final Duration NEGATIVE_TEN_SEC = Duration.create(-10, 0); |
| private static final Timestamp START = Timestamp.create(60, 0); |
| private static final Mean MEAN = Mean.create(); |
| |
| @Test |
| public void preventNullStartTime() { |
| thrown.expect(NullPointerException.class); |
| new IntervalBucket(null, MINUTE, MEAN, MEASURE_DOUBLE); |
| } |
| |
| @Test |
| public void preventNullDuration() { |
| thrown.expect(NullPointerException.class); |
| new IntervalBucket(START, null, MEAN, MEASURE_DOUBLE); |
| } |
| |
| @Test |
| public void preventNegativeDuration() { |
| thrown.expect(IllegalArgumentException.class); |
| new IntervalBucket(START, NEGATIVE_TEN_SEC, MEAN, MEASURE_DOUBLE); |
| } |
| |
| @Test |
| public void preventNullAggregation() { |
| thrown.expect(NullPointerException.class); |
| new IntervalBucket(START, MINUTE, null, MEASURE_DOUBLE); |
| } |
| |
| @Test |
| public void preventNullMeasure() { |
| thrown.expect(NullPointerException.class); |
| new IntervalBucket(START, MINUTE, MEAN, null); |
| } |
| |
| @Test |
| public void testGetTagValueAggregationMap_empty() { |
| assertThat(new IntervalBucket(START, MINUTE, MEAN, MEASURE_DOUBLE).getTagValueAggregationMap()) |
| .isEmpty(); |
| } |
| |
| @Test |
| public void testGetStart() { |
| assertThat(new IntervalBucket(START, MINUTE, MEAN, MEASURE_DOUBLE).getStart()).isEqualTo(START); |
| } |
| |
| @Test |
| public void testRecord() { |
| IntervalBucket bucket = new IntervalBucket(START, MINUTE, MEAN, MEASURE_DOUBLE); |
| List<TagValue> tagValues1 = Arrays.<TagValue>asList(TagValue.create("VALUE1")); |
| List<TagValue> tagValues2 = Arrays.<TagValue>asList(TagValue.create("VALUE2")); |
| bucket.record(tagValues1, 5.0, Collections.<String, String>emptyMap(), START); |
| bucket.record(tagValues1, 15.0, Collections.<String, String>emptyMap(), START); |
| bucket.record(tagValues2, 10.0, Collections.<String, String>emptyMap(), START); |
| assertThat(bucket.getTagValueAggregationMap().keySet()).containsExactly(tagValues1, tagValues2); |
| MutableMean mutableMean1 = (MutableMean) bucket.getTagValueAggregationMap().get(tagValues1); |
| MutableMean mutableMean2 = (MutableMean) bucket.getTagValueAggregationMap().get(tagValues2); |
| assertThat(mutableMean1.getSum()).isWithin(TOLERANCE).of(20); |
| assertThat(mutableMean2.getSum()).isWithin(TOLERANCE).of(10); |
| assertThat(mutableMean1.getCount()).isEqualTo(2); |
| assertThat(mutableMean2.getCount()).isEqualTo(1); |
| } |
| |
| @Test |
| public void testGetFraction() { |
| Timestamp thirtySecondsAfterStart = Timestamp.create(90, 0); |
| assertThat( |
| new IntervalBucket(START, MINUTE, MEAN, MEASURE_DOUBLE) |
| .getFraction(thirtySecondsAfterStart)) |
| .isWithin(TOLERANCE) |
| .of(0.5); |
| } |
| |
| @Test |
| public void preventCallingGetFractionOnPastBuckets() { |
| IntervalBucket bucket = new IntervalBucket(START, MINUTE, MEAN, MEASURE_DOUBLE); |
| Timestamp twoMinutesAfterStart = Timestamp.create(180, 0); |
| thrown.expect(IllegalArgumentException.class); |
| bucket.getFraction(twoMinutesAfterStart); |
| } |
| |
| @Test |
| public void preventCallingGetFractionOnFutureBuckets() { |
| IntervalBucket bucket = new IntervalBucket(START, MINUTE, MEAN, MEASURE_DOUBLE); |
| Timestamp thirtySecondsBeforeStart = Timestamp.create(30, 0); |
| thrown.expect(IllegalArgumentException.class); |
| bucket.getFraction(thirtySecondsBeforeStart); |
| } |
| } |