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Signed-off-by: Sjoerd Talsma <[email protected]>
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73 changes: 73 additions & 0 deletions
73
...xt-propagation-api/src/test/java/nl/talsmasoftware/context/api/NoContextManagersTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| /* | ||
| * Copyright 2016-2024 Talsma ICT | ||
| * | ||
| * 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 nl.talsmasoftware.context.api; | ||
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| import nl.talsmasoftware.context.dummy.DummyContext; | ||
| import org.junit.jupiter.api.AfterEach; | ||
| import org.junit.jupiter.api.Assertions; | ||
| import org.junit.jupiter.api.BeforeEach; | ||
| import org.junit.jupiter.api.Test; | ||
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| import java.io.File; | ||
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| import static org.hamcrest.MatcherAssert.assertThat; | ||
| import static org.hamcrest.Matchers.is; | ||
| import static org.hamcrest.Matchers.notNullValue; | ||
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| public class NoContextManagersTest { | ||
| private static final String SERVICE_LOCATION = "target/test-classes/META-INF/services/"; | ||
| private static final File SERVICE_FILE = new File(SERVICE_LOCATION + ContextManager.class.getName()); | ||
| private static final File TMP_SERVICE_FILE = new File(SERVICE_LOCATION + "tmp-ContextManager"); | ||
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| @BeforeEach | ||
| public void avoidContextManagersCache() { | ||
| ContextManager.useClassLoader(new ClassLoader(Thread.currentThread().getContextClassLoader()) { | ||
| }); | ||
| assertThat("Move service file", SERVICE_FILE.renameTo(TMP_SERVICE_FILE), is(true)); | ||
| } | ||
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| @AfterEach | ||
| public void resetDefaultClassLoader() { | ||
| ContextManager.useClassLoader(null); | ||
| assertThat("Restore service file!", TMP_SERVICE_FILE.renameTo(SERVICE_FILE), is(true)); | ||
| } | ||
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| @Test | ||
| public void testReactivate_withoutContextManagers() { | ||
| Context<String> ctx1 = new DummyContext("foo"); | ||
| ContextSnapshot snapshot = ContextSnapshot.capture(); | ||
| ctx1.close(); | ||
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| ContextSnapshot.Reactivation reactivated = snapshot.reactivate(); | ||
| reactivated.close(); | ||
| } | ||
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| @Test | ||
| public void testCreateSnapshot_withoutContextManagers() { | ||
| ContextSnapshot snapshot = ContextSnapshot.capture(); | ||
| assertThat(snapshot, is(notNullValue())); | ||
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| ContextSnapshot.Reactivation reactivated = snapshot.reactivate(); | ||
| assertThat(reactivated, is(notNullValue())); | ||
| reactivated.close(); | ||
| } | ||
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| @Test | ||
| public void testClearManagedContexts_withoutContextManagers() { | ||
| Assertions.assertDoesNotThrow(() -> ContextManager.clearAll()); // there should be no exception | ||
| } | ||
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| } |
75 changes: 75 additions & 0 deletions
75
context-propagation-api/src/test/java/nl/talsmasoftware/context/dummy/DummyContext.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,75 @@ | ||
| /* | ||
| * Copyright 2016-2024 Talsma ICT | ||
| * | ||
| * 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 nl.talsmasoftware.context.dummy; | ||
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| import nl.talsmasoftware.context.api.Context; | ||
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| import java.util.concurrent.atomic.AtomicBoolean; | ||
|
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| /** | ||
| * @author Sjoerd Talsma | ||
| */ | ||
| public final class DummyContext implements Context<String> { | ||
| private static final ThreadLocal<DummyContext> INSTANCE = new ThreadLocal<>(); | ||
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| private final DummyContext parent; | ||
| private final String value; | ||
| private final AtomicBoolean closed; | ||
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| public DummyContext(String newValue) { | ||
| this.parent = INSTANCE.get(); | ||
| this.value = newValue; | ||
| this.closed = new AtomicBoolean(false); | ||
| INSTANCE.set(this); | ||
| } | ||
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| // Public for testing! | ||
| public boolean isClosed() { | ||
| return closed.get(); | ||
| } | ||
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| public String getValue() { | ||
| return value; | ||
| } | ||
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| public void close() { | ||
| if (closed.compareAndSet(false, true) && INSTANCE.get() == this) { | ||
| DummyContext current = INSTANCE.get(); | ||
| while (current != null && current.isClosed()) { | ||
| current = current.parent; | ||
| } | ||
| if (current == null) { | ||
| INSTANCE.remove(); | ||
| } else { | ||
| INSTANCE.set(current); | ||
| } | ||
| } | ||
| } | ||
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| public static String currentValue() { | ||
| final Context<String> currentContext = INSTANCE.get(); | ||
| return currentContext != null ? currentContext.getValue() : null; | ||
| } | ||
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| public static void setCurrentValue(String value) { | ||
| new DummyContext(value); | ||
| } | ||
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| public static void reset() { | ||
| INSTANCE.remove(); | ||
| } | ||
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| } |
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