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/*
* Copyright 2017, Google Inc.
* 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.trace;
import static com.google.common.truth.Truth.assertThat;
import com.google.common.testing.EqualsTester;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Unit tests for {@link StartSpanOptions}. */
@RunWith(JUnit4.class)
public class StartSpanOptionsTest {
private final List<Span> singleParentList = Arrays.<Span>asList(BlankSpan.INSTANCE);
@Test
public void defaultOptions() {
StartSpanOptions defaultOptions = StartSpanOptions.builder().build();
assertThat(defaultOptions.getSampler()).isNull();
assertThat(defaultOptions.getParentLinks().isEmpty()).isTrue();
assertThat(defaultOptions.getRecordEvents()).isNull();
}
@Test
public void setSampler() {
StartSpanOptions options =
StartSpanOptions.builder().setSampler(Samplers.neverSample()).build();
assertThat(options.getSampler()).isEqualTo(Samplers.neverSample());
assertThat(options.getParentLinks().isEmpty()).isTrue();
assertThat(options.getRecordEvents()).isNull();
}
@Test
public void setParentLinks() {
StartSpanOptions options = StartSpanOptions.builder().setParentLinks(singleParentList).build();
assertThat(options.getSampler()).isNull();
assertThat(options.getParentLinks()).isEqualTo(singleParentList);
assertThat(options.getRecordEvents()).isNull();
}
@Test
public void setParentLinks_EmptyList() {
StartSpanOptions options =
StartSpanOptions.builder().setParentLinks(new LinkedList<Span>()).build();
assertThat(options.getSampler()).isNull();
assertThat(options.getParentLinks().size()).isEqualTo(0);
assertThat(options.getRecordEvents()).isNull();
}
@Test
public void setParentLinks_MultipleParents() {
StartSpanOptions options =
StartSpanOptions.builder()
.setParentLinks(Arrays.<Span>asList(BlankSpan.INSTANCE, BlankSpan.INSTANCE))
.build();
assertThat(options.getSampler()).isNull();
assertThat(options.getParentLinks().size()).isEqualTo(2);
assertThat(options.getRecordEvents()).isNull();
}
@Test
public void setRecordEvents() {
StartSpanOptions options = StartSpanOptions.builder().setRecordEvents(true).build();
assertThat(options.getSampler()).isNull();
assertThat(options.getParentLinks().isEmpty()).isTrue();
assertThat(options.getRecordEvents()).isTrue();
}
@Test
public void setAllProperties() {
StartSpanOptions options =
StartSpanOptions.builder()
.setSampler(Samplers.alwaysSample())
.setRecordEvents(true)
.setParentLinks(singleParentList)
.build();
assertThat(options.getSampler()).isEqualTo(Samplers.alwaysSample());
assertThat(options.getParentLinks()).isEqualTo(singleParentList);
assertThat(options.getRecordEvents()).isTrue();
}
@Test
public void startSpanOptions_EqualsAndHashCode() {
EqualsTester tester = new EqualsTester();
StartSpanOptions optionsWithAlwaysSampler1 =
StartSpanOptions.builder().setSampler(Samplers.alwaysSample()).build();
StartSpanOptions optionsWithAlwaysSampler2 =
StartSpanOptions.builder().setSampler(Samplers.alwaysSample()).build();
tester.addEqualityGroup(optionsWithAlwaysSampler1, optionsWithAlwaysSampler2);
StartSpanOptions optionsWithNeverSampler =
StartSpanOptions.builder().setSampler(Samplers.neverSample()).build();
tester.addEqualityGroup(optionsWithNeverSampler);
tester.addEqualityGroup(StartSpanOptions.DEFAULT);
tester.testEquals();
}
}
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