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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.propagation;
import static com.google.common.truth.Truth.assertThat;
import io.opencensus.trace.SpanContext;
import io.opencensus.trace.propagation.TextFormat.Getter;
import io.opencensus.trace.propagation.TextFormat.Setter;
import javax.annotation.Nullable;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/** Unit tests for {@link TextFormat}. */
@RunWith(JUnit4.class)
public class TextFormatTest {
private static final TextFormat textFormat = TextFormat.getNoopTextFormat();
@Test(expected = NullPointerException.class)
public void inject_NullSpanContext() {
textFormat.inject(
null,
new Object(),
new Setter<Object>() {
@Override
public void put(Object carrier, String key, String value) {}
});
}
@Test
public void inject_NotNullSpanContext_DoesNotFail() {
textFormat.inject(
SpanContext.INVALID,
new Object(),
new Setter<Object>() {
@Override
public void put(Object carrier, String key, String value) {}
});
}
@Test(expected = NullPointerException.class)
public void fromHeaders_NullGetter() throws SpanContextParseException {
textFormat.extract(new Object(), null);
}
@Test
public void fromHeaders_NotNullGetter() throws SpanContextParseException {
assertThat(
textFormat.extract(
new Object(),
new Getter<Object>() {
@Nullable
@Override
public String get(Object carrier, String key) {
return null;
}
}))
.isSameAs(SpanContext.INVALID);
}
}
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