1 files changed, 216 insertions, 0 deletions
diff --git a/common/openecomp-logging-lib/openecomp-logging-core/src/test/java/org/openecomp/core/logging/context/MDCPropagationFactoryTest.java b/common/openecomp-logging-lib/openecomp-logging-core/src/test/java/org/openecomp/core/logging/context/MDCPropagationFactoryTest.java
new file mode 100644
index 0000000000..f2a6549a2a
--- /dev/null
+++ b/common/openecomp-logging-lib/openecomp-logging-core/src/test/java/org/openecomp/core/logging/context/MDCPropagationFactoryTest.java
@@ -0,0 +1,216 @@
+/*-
+ * ============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());
+  }
+
+}