| /* |
| * 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.stats; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.common.testing.EqualsTester; |
| import io.opencensus.common.Functions; |
| import io.opencensus.stats.Aggregation.Count; |
| import io.opencensus.stats.Aggregation.Distribution; |
| import io.opencensus.stats.Aggregation.LastValue; |
| import io.opencensus.stats.Aggregation.Mean; |
| import io.opencensus.stats.Aggregation.Sum; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| 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; |
| |
| /** Unit tests for {@link io.opencensus.stats.Aggregation}. */ |
| @RunWith(JUnit4.class) |
| public class AggregationTest { |
| |
| @Rule public ExpectedException thrown = ExpectedException.none(); |
| |
| @Test |
| public void testCreateDistribution() { |
| BucketBoundaries bucketBoundaries = BucketBoundaries.create(Arrays.asList(0.1, 2.2, 33.3)); |
| Distribution distribution = Distribution.create(bucketBoundaries); |
| assertThat(distribution.getBucketBoundaries()).isEqualTo(bucketBoundaries); |
| } |
| |
| @Test |
| public void testNullBucketBoundaries() { |
| thrown.expect(NullPointerException.class); |
| thrown.expectMessage("bucketBoundaries"); |
| Distribution.create(null); |
| } |
| |
| @Test |
| public void testEquals() { |
| new EqualsTester() |
| .addEqualityGroup(Sum.create(), Sum.create()) |
| .addEqualityGroup(Count.create(), Count.create()) |
| .addEqualityGroup( |
| Distribution.create(BucketBoundaries.create(Arrays.asList(-10.0, 1.0, 5.0))), |
| Distribution.create(BucketBoundaries.create(Arrays.asList(-10.0, 1.0, 5.0)))) |
| .addEqualityGroup( |
| Distribution.create(BucketBoundaries.create(Arrays.asList(0.0, 1.0, 5.0))), |
| Distribution.create(BucketBoundaries.create(Arrays.asList(0.0, 1.0, 5.0)))) |
| .addEqualityGroup(Mean.create(), Mean.create()) |
| .addEqualityGroup(LastValue.create(), LastValue.create()) |
| .testEquals(); |
| } |
| |
| @Test |
| public void testMatch() { |
| List<Aggregation> aggregations = |
| Arrays.asList( |
| Sum.create(), |
| Count.create(), |
| Mean.create(), |
| Distribution.create(BucketBoundaries.create(Arrays.asList(-10.0, 1.0, 5.0))), |
| LastValue.create()); |
| |
| List<String> actual = new ArrayList<String>(); |
| for (Aggregation aggregation : aggregations) { |
| actual.add( |
| aggregation.match( |
| Functions.returnConstant("SUM"), |
| Functions.returnConstant("COUNT"), |
| Functions.returnConstant("DISTRIBUTION"), |
| Functions.returnConstant("LASTVALUE"), |
| Functions.returnConstant("UNKNOWN"))); |
| } |
| |
| assertThat(actual) |
| .isEqualTo(Arrays.asList("SUM", "COUNT", "UNKNOWN", "DISTRIBUTION", "LASTVALUE")); |
| } |
| } |