1 /* 2 * Copyright 2017, 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.trace.config; 18 19 import static com.google.common.truth.Truth.assertThat; 20 21 import io.opencensus.trace.samplers.Samplers; 22 import org.junit.Test; 23 import org.junit.runner.RunWith; 24 import org.junit.runners.JUnit4; 25 26 /** Unit tests for {@link TraceParams}. */ 27 @RunWith(JUnit4.class) 28 public class TraceParamsTest { 29 @Test defaultTraceParams()30 public void defaultTraceParams() { 31 assertThat(TraceParams.DEFAULT.getSampler()).isEqualTo(Samplers.probabilitySampler(1e-4)); 32 assertThat(TraceParams.DEFAULT.getMaxNumberOfAttributes()).isEqualTo(32); 33 assertThat(TraceParams.DEFAULT.getMaxNumberOfAnnotations()).isEqualTo(32); 34 assertThat(TraceParams.DEFAULT.getMaxNumberOfNetworkEvents()).isEqualTo(128); 35 assertThat(TraceParams.DEFAULT.getMaxNumberOfMessageEvents()).isEqualTo(128); 36 assertThat(TraceParams.DEFAULT.getMaxNumberOfLinks()).isEqualTo(32); 37 } 38 39 @Test(expected = NullPointerException.class) updateTraceParams_NullSampler()40 public void updateTraceParams_NullSampler() { 41 TraceParams.DEFAULT.toBuilder().setSampler(null).build(); 42 } 43 44 @Test(expected = IllegalArgumentException.class) updateTraceParams_NonPositiveMaxNumberOfAttributes()45 public void updateTraceParams_NonPositiveMaxNumberOfAttributes() { 46 TraceParams.DEFAULT.toBuilder().setMaxNumberOfAttributes(0).build(); 47 } 48 49 @Test(expected = IllegalArgumentException.class) updateTraceParams_NonPositiveMaxNumberOfAnnotations()50 public void updateTraceParams_NonPositiveMaxNumberOfAnnotations() { 51 TraceParams.DEFAULT.toBuilder().setMaxNumberOfAnnotations(0).build(); 52 } 53 54 @Test(expected = IllegalArgumentException.class) updateTraceParams_NonPositiveMaxNumberOfNetworkEvents()55 public void updateTraceParams_NonPositiveMaxNumberOfNetworkEvents() { 56 TraceParams.DEFAULT.toBuilder().setMaxNumberOfNetworkEvents(0).build(); 57 } 58 59 @Test(expected = IllegalArgumentException.class) updateTraceParams_NonPositiveMaxNumberOfMessageEvents()60 public void updateTraceParams_NonPositiveMaxNumberOfMessageEvents() { 61 TraceParams.DEFAULT.toBuilder().setMaxNumberOfMessageEvents(0).build(); 62 } 63 64 @Test(expected = IllegalArgumentException.class) updateTraceParams_NonPositiveMaxNumberOfLinks()65 public void updateTraceParams_NonPositiveMaxNumberOfLinks() { 66 TraceParams.DEFAULT.toBuilder().setMaxNumberOfLinks(0).build(); 67 } 68 69 @Test updateTraceParams_All()70 public void updateTraceParams_All() { 71 TraceParams traceParams = 72 TraceParams.DEFAULT 73 .toBuilder() 74 .setSampler(Samplers.alwaysSample()) 75 .setMaxNumberOfAttributes(8) 76 .setMaxNumberOfAnnotations(9) 77 .setMaxNumberOfMessageEvents(10) 78 .setMaxNumberOfLinks(11) 79 .build(); 80 assertThat(traceParams.getSampler()).isEqualTo(Samplers.alwaysSample()); 81 assertThat(traceParams.getMaxNumberOfAttributes()).isEqualTo(8); 82 assertThat(traceParams.getMaxNumberOfAnnotations()).isEqualTo(9); 83 // test maxNumberOfNetworkEvent can be set via maxNumberOfMessageEvent 84 assertThat(traceParams.getMaxNumberOfNetworkEvents()).isEqualTo(10); 85 assertThat(traceParams.getMaxNumberOfMessageEvents()).isEqualTo(10); 86 assertThat(traceParams.getMaxNumberOfLinks()).isEqualTo(11); 87 } 88 89 @Test updateTraceParams_maxNumberOfNetworkEvents()90 public void updateTraceParams_maxNumberOfNetworkEvents() { 91 TraceParams traceParams = 92 TraceParams.DEFAULT.toBuilder().setMaxNumberOfNetworkEvents(10).build(); 93 assertThat(traceParams.getMaxNumberOfNetworkEvents()).isEqualTo(10); 94 // test maxNumberOfMessageEvent can be set via maxNumberOfNetworkEvent 95 assertThat(traceParams.getMaxNumberOfMessageEvents()).isEqualTo(10); 96 } 97 } 98