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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.core.logging.context;
import org.slf4j.MDC;
import org.testng.annotations.Test;
import java.util.UUID;
import java.util.concurrent.atomic.AtomicBoolean;
import static org.testng.Assert.*;
/**
* @author evitaliy
* @since 12/09/2016.
*/
public class MDCPropagationFactoryTest {
@Test
public void testNoPropagation() throws InterruptedException {
String uuid = UUID.randomUUID().toString();
AtomicBoolean complete = new AtomicBoolean(false);
MDC.put("data", uuid);
Runnable runnable = () -> {
assertNull(MDC.get("data"));
complete.set(true);
};
Thread thread = new Thread(runnable);
thread.start();
thread.join();
assertEquals(MDC.get("data"), uuid);
assertTrue(complete.get());
}
@Test
public void testPropagation() throws InterruptedException {
String uuid = UUID.randomUUID().toString();
AtomicBoolean complete = new AtomicBoolean(false);
MDC.put("data", uuid);
MdcPropagationService factory = new MdcPropagationService();
Runnable runnable = factory.create(() -> {
assertEquals(MDC.get("data"), uuid);
complete.set(true);
});
Thread thread = new Thread(runnable);
thread.start();
thread.join();
assertEquals(MDC.get("data"), uuid);
assertTrue(complete.get());
}
@Test
public void testReplacement() throws InterruptedException {
String innerUuid = UUID.randomUUID().toString();
AtomicBoolean innerComplete = new AtomicBoolean(false);
AtomicBoolean outerComplete = new AtomicBoolean(false);
MDC.put("data", innerUuid);
MdcPropagationService factory = new MdcPropagationService();
// should run with the context of main thread
Runnable inner = factory.create(() -> {
assertEquals(MDC.get("data"), innerUuid);
innerComplete.set(true);
});
// pushes its own context, but runs the inner runnable
Runnable outer = () -> {
String outerUuid = UUID.randomUUID().toString();
MDC.put("data", outerUuid);
inner.run();
assertEquals(MDC.get("data"), outerUuid);
outerComplete.set(true);
};
Thread thread = new Thread(outer);
thread.start();
thread.join();
assertEquals(MDC.get("data"), innerUuid);
assertTrue(outerComplete.get());
assertTrue(innerComplete.get());
}
@Test
public void testEmpty() throws InterruptedException {
final AtomicBoolean complete = new AtomicBoolean(false);
MDC.remove("data");
assertNull(MDC.get("data"));
MdcPropagationService factory = new MdcPropagationService();
Runnable runnable = factory.create(() -> {
assertNull(MDC.get("data"));
complete.set(true);
});
Thread thread = new Thread(runnable);
thread.start();
thread.join();
assertNull(MDC.get("data"));
assertTrue(complete.get());
}
@Test
public void testCleanup() throws Exception {
String innerUuid = UUID.randomUUID().toString();
AtomicBoolean innerComplete = new AtomicBoolean(false);
AtomicBoolean outerComplete = new AtomicBoolean(false);
MDC.put("data", innerUuid);
MdcPropagationService factory = new MdcPropagationService();
// should run with the context of main thread
Runnable inner = factory.create(() -> {
assertEquals(MDC.get("data"), innerUuid);
innerComplete.set(true);
});
// pushes its own context, but runs the inner runnable
Runnable outer = () -> {
assertNull(MDC.get("data"));
inner.run();
assertNull(MDC.get("data"));
outerComplete.set(true);
};
Thread thread = new Thread(outer);
thread.start();
thread.join();
assertEquals(MDC.get("data"), innerUuid);
assertTrue(outerComplete.get());
assertTrue(innerComplete.get());
}
@Test
public void testCleanupAfterError() throws Exception {
String innerUuid = UUID.randomUUID().toString();
AtomicBoolean innerComplete = new AtomicBoolean(false);
AtomicBoolean outerComplete = new AtomicBoolean(false);
AtomicBoolean exceptionThrown = new AtomicBoolean(false);
MDC.put("data", innerUuid);
MdcPropagationService factory = new MdcPropagationService();
// should run with the context of main thread
Runnable inner = factory.create(() -> {
assertEquals(MDC.get("data"), innerUuid);
innerComplete.set(true);
throw new RuntimeException();
});
// pushes its own context, but runs the inner runnable
Runnable outer = () -> {
String outerUuid = UUID.randomUUID().toString();
MDC.put("data", outerUuid);
assertEquals(MDC.get("data"), outerUuid);
try {
inner.run();
} catch (RuntimeException e) {
exceptionThrown.set(true);
} finally {
assertEquals(MDC.get("data"), outerUuid);
outerComplete.set(true);
}
};
Thread thread = new Thread(outer);
thread.start();
thread.join();
assertEquals(MDC.get("data"), innerUuid);
assertTrue(outerComplete.get());
assertTrue(innerComplete.get());
assertTrue(exceptionThrown.get());
}
}
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