diff options
Diffstat (limited to 'impl_core/src/test/java/io/opencensus/implcore/tags/TagsComponentImplBaseTest.java')
-rw-r--r-- | impl_core/src/test/java/io/opencensus/implcore/tags/TagsComponentImplBaseTest.java | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/impl_core/src/test/java/io/opencensus/implcore/tags/TagsComponentImplBaseTest.java b/impl_core/src/test/java/io/opencensus/implcore/tags/TagsComponentImplBaseTest.java new file mode 100644 index 00000000..1bc13c59 --- /dev/null +++ b/impl_core/src/test/java/io/opencensus/implcore/tags/TagsComponentImplBaseTest.java @@ -0,0 +1,84 @@ +/* + * 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.implcore.tags; + +import static com.google.common.truth.Truth.assertThat; + +import io.opencensus.tags.TaggingState; +import io.opencensus.tags.TagsComponent; +import org.junit.Rule; +import org.junit.Test; +import org.junit.rules.ExpectedException; +import org.junit.runner.RunWith; +import org.junit.runners.JUnit4; + +/** Tests for {@link TagsComponentImplBase}. */ +@RunWith(JUnit4.class) +public class TagsComponentImplBaseTest { + + @Rule public final ExpectedException thrown = ExpectedException.none(); + + private final TagsComponent tagsComponent = new TagsComponentImplBase(); + + @Test + public void defaultState() { + assertThat(tagsComponent.getState()).isEqualTo(TaggingState.ENABLED); + } + + @Test + @SuppressWarnings("deprecation") + public void setState_Disabled() { + tagsComponent.setState(TaggingState.DISABLED); + assertThat(tagsComponent.getState()).isEqualTo(TaggingState.DISABLED); + } + + @Test + @SuppressWarnings("deprecation") + public void setState_Enabled() { + tagsComponent.setState(TaggingState.DISABLED); + tagsComponent.setState(TaggingState.ENABLED); + assertThat(tagsComponent.getState()).isEqualTo(TaggingState.ENABLED); + } + + @Test + @SuppressWarnings("deprecation") + public void setState_DisallowsNull() { + thrown.expect(NullPointerException.class); + thrown.expectMessage("newState"); + tagsComponent.setState(null); + } + + @Test + @SuppressWarnings("deprecation") + public void preventSettingStateAfterGettingState_DifferentState() { + tagsComponent.setState(TaggingState.DISABLED); + tagsComponent.getState(); + thrown.expect(IllegalStateException.class); + thrown.expectMessage("State was already read, cannot set state."); + tagsComponent.setState(TaggingState.ENABLED); + } + + @Test + @SuppressWarnings("deprecation") + public void preventSettingStateAfterGettingState_SameState() { + tagsComponent.setState(TaggingState.DISABLED); + tagsComponent.getState(); + thrown.expect(IllegalStateException.class); + thrown.expectMessage("State was already read, cannot set state."); + tagsComponent.setState(TaggingState.DISABLED); + } +} |