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/*
* 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.trace;
import static com.google.common.truth.Truth.assertThat;
import java.util.HashMap;
import java.util.Map;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Unit tests for {@link BlankSpan}. */
@RunWith(JUnit4.class)
public class BlankSpanTest {
@Test
public void hasInvalidContextAndDefaultSpanOptions() {
assertThat(BlankSpan.INSTANCE.getContext()).isEqualTo(SpanContext.INVALID);
assertThat(BlankSpan.INSTANCE.getOptions().isEmpty()).isTrue();
}
@Test
public void doNotCrash() {
Map<String, AttributeValue> attributes = new HashMap<String, AttributeValue>();
attributes.put(
"MyStringAttributeKey", AttributeValue.stringAttributeValue("MyStringAttributeValue"));
Map<String, AttributeValue> multipleAttributes = new HashMap<String, AttributeValue>();
multipleAttributes.put(
"MyStringAttributeKey", AttributeValue.stringAttributeValue("MyStringAttributeValue"));
multipleAttributes.put("MyBooleanAttributeKey", AttributeValue.booleanAttributeValue(true));
multipleAttributes.put("MyLongAttributeKey", AttributeValue.longAttributeValue(123));
// Tests only that all the methods are not crashing/throwing errors.
BlankSpan.INSTANCE.addAttributes(attributes);
BlankSpan.INSTANCE.addAttributes(multipleAttributes);
BlankSpan.INSTANCE.addAnnotation("MyAnnotation");
BlankSpan.INSTANCE.addAnnotation("MyAnnotation", attributes);
BlankSpan.INSTANCE.addAnnotation("MyAnnotation", multipleAttributes);
BlankSpan.INSTANCE.addAnnotation(Annotation.fromDescription("MyAnnotation"));
BlankSpan.INSTANCE.addNetworkEvent(NetworkEvent.builder(NetworkEvent.Type.SENT, 1L).build());
BlankSpan.INSTANCE.addLink(
Link.fromSpanContext(SpanContext.INVALID, Link.Type.CHILD_LINKED_SPAN));
BlankSpan.INSTANCE.end(EndSpanOptions.DEFAULT);
BlankSpan.INSTANCE.end();
}
@Test
public void blankSpan_ToString() {
assertThat(BlankSpan.INSTANCE.toString()).isEqualTo("BlankSpan");
}
}
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