1 /* 2 * Copyright 2019, OpenCensus Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package io.opencensus.metrics; 18 19 import io.opencensus.common.ToDoubleFunction; 20 import java.util.ArrayList; 21 import java.util.Collections; 22 import java.util.List; 23 import org.junit.Rule; 24 import org.junit.Test; 25 import org.junit.rules.ExpectedException; 26 import org.junit.runner.RunWith; 27 import org.junit.runners.JUnit4; 28 29 /** Unit tests for {@link DerivedDoubleCumulative}. */ 30 @RunWith(JUnit4.class) 31 public class DerivedDoubleCumulativeTest { 32 @Rule public ExpectedException thrown = ExpectedException.none(); 33 34 private static final String NAME = "name"; 35 private static final String DESCRIPTION = "description"; 36 private static final String UNIT = "1"; 37 private static final List<LabelKey> LABEL_KEY = 38 Collections.singletonList(LabelKey.create("key", "key description")); 39 private static final List<LabelValue> LABEL_VALUES = 40 Collections.singletonList(LabelValue.create("value")); 41 private static final List<LabelValue> EMPTY_LABEL_VALUES = new ArrayList<LabelValue>(); 42 43 private final DerivedDoubleCumulative derivedDoubleCumulative = 44 DerivedDoubleCumulative.newNoopDerivedDoubleCumulative(NAME, DESCRIPTION, UNIT, LABEL_KEY); 45 private static final ToDoubleFunction<Object> doubleFunction = 46 new ToDoubleFunction<Object>() { 47 @Override 48 public double applyAsDouble(Object value) { 49 return 5.0; 50 } 51 }; 52 53 @Test noopCreateTimeSeries_WithNullLabelValues()54 public void noopCreateTimeSeries_WithNullLabelValues() { 55 thrown.expect(NullPointerException.class); 56 thrown.expectMessage("labelValues"); 57 derivedDoubleCumulative.createTimeSeries(null, null, doubleFunction); 58 } 59 60 @Test noopCreateTimeSeries_WithNullElement()61 public void noopCreateTimeSeries_WithNullElement() { 62 List<LabelValue> labelValues = Collections.singletonList(null); 63 thrown.expect(NullPointerException.class); 64 thrown.expectMessage("labelValue"); 65 derivedDoubleCumulative.createTimeSeries(labelValues, null, doubleFunction); 66 } 67 68 @Test noopCreateTimeSeries_WithInvalidLabelSize()69 public void noopCreateTimeSeries_WithInvalidLabelSize() { 70 thrown.expect(IllegalArgumentException.class); 71 thrown.expectMessage("Label Keys and Label Values don't have same size."); 72 derivedDoubleCumulative.createTimeSeries(EMPTY_LABEL_VALUES, null, doubleFunction); 73 } 74 75 @Test createTimeSeries_WithNullFunction()76 public void createTimeSeries_WithNullFunction() { 77 thrown.expect(NullPointerException.class); 78 thrown.expectMessage("function"); 79 derivedDoubleCumulative.createTimeSeries(LABEL_VALUES, null, null); 80 } 81 82 @Test noopRemoveTimeSeries_WithNullLabelValues()83 public void noopRemoveTimeSeries_WithNullLabelValues() { 84 thrown.expect(NullPointerException.class); 85 thrown.expectMessage("labelValues"); 86 derivedDoubleCumulative.removeTimeSeries(null); 87 } 88 } 89