diff options
Diffstat (limited to 'api/src/test/java/io/opencensus/trace/propagation/TextFormatTest.java')
-rw-r--r-- | api/src/test/java/io/opencensus/trace/propagation/TextFormatTest.java | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/api/src/test/java/io/opencensus/trace/propagation/TextFormatTest.java b/api/src/test/java/io/opencensus/trace/propagation/TextFormatTest.java new file mode 100644 index 00000000..c2e6e127 --- /dev/null +++ b/api/src/test/java/io/opencensus/trace/propagation/TextFormatTest.java @@ -0,0 +1,75 @@ +/* + * 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); + } +} |