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 TraceConfig}. */
27 @RunWith(JUnit4.class)
28 public class TraceConfigTest {
29   TraceConfig traceConfig = TraceConfig.getNoopTraceConfig();
30 
31   @Test
activeTraceParams_NoOpImplementation()32   public void activeTraceParams_NoOpImplementation() {
33     assertThat(traceConfig.getActiveTraceParams()).isEqualTo(TraceParams.DEFAULT);
34   }
35 
36   @Test
updateActiveTraceParams_NoOpImplementation()37   public void updateActiveTraceParams_NoOpImplementation() {
38     TraceParams traceParams =
39         TraceParams.DEFAULT
40             .toBuilder()
41             .setSampler(Samplers.alwaysSample())
42             .setMaxNumberOfAttributes(8)
43             .setMaxNumberOfAnnotations(9)
44             .setMaxNumberOfNetworkEvents(10)
45             .setMaxNumberOfMessageEvents(10)
46             .setMaxNumberOfLinks(11)
47             .build();
48     traceConfig.updateActiveTraceParams(traceParams);
49     assertThat(traceConfig.getActiveTraceParams()).isEqualTo(TraceParams.DEFAULT);
50   }
51 }
52