2 files changed, 99 insertions, 31 deletions
diff --git a/BRMSGateway/src/main/java/org/onap/policy/brms/api/BrmsGateway.java b/BRMSGateway/src/main/java/org/onap/policy/brms/api/BrmsGateway.java
index e743794ec..bb62b96c4 100644
--- a/BRMSGateway/src/main/java/org/onap/policy/brms/api/BrmsGateway.java
+++ b/BRMSGateway/src/main/java/org/onap/policy/brms/api/BrmsGateway.java
@@ -7,9 +7,9 @@
  * 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.
@@ -20,6 +20,7 @@
 
 package org.onap.policy.brms.api;
 
+import java.util.concurrent.CountDownLatch;
 import org.onap.policy.api.NotificationScheme;
 import org.onap.policy.api.PolicyEngine;
 import org.onap.policy.api.PolicyException;
@@ -31,7 +32,7 @@ import org.onap.policy.xacml.api.XACMLErrorConstants;
  * BRMSGateway: This application acts as the Gateway interface between the PDP XACML and PDP Drools.
  * The listens for BRMS based policies and pushes them to the specified Policy Repository, from
  * where the PDP Drools reads the Rule Jar.
- * 
+ *
  * @version 0.1
  */
 public class BrmsGateway {
@@ -41,6 +42,9 @@ public class BrmsGateway {
 
     private static PolicyEngine policyEngine = null;
 
+    // may be overridden by junit tests
+    private static Factory factory = new Factory();
+
     private BrmsGateway() {
         // Default private constructor
     }
@@ -68,7 +72,7 @@ public class BrmsGateway {
         logger.info("Initializing BRMS Handler");
         BrmsHandler brmsHandler = null;
         try {
-            brmsHandler = new BrmsHandler(configFile);
+            brmsHandler = factory.makeBrmsHandler(configFile);
         } catch (final PolicyException e) {
             String errorString = "Check your property file: " + e.getMessage();
             logger.error(errorString);
@@ -85,21 +89,34 @@ public class BrmsGateway {
         }
 
         // Keep Running....
+        CountDownLatch latch = new CountDownLatch(1);
         final Runnable runnable = () -> {
-            while (true) {
-                try {
-                    Thread.sleep(30000);
-                } catch (final InterruptedException e) {
-                    logger.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "Thread Exception " + e.getMessage());
-                    Thread.currentThread().interrupt();
-                }
+            try {
+                // wait until interrupted
+                latch.await();
+            } catch (final InterruptedException e) {
+                logger.error(XACMLErrorConstants.ERROR_SYSTEM_ERROR + "Thread Exception " + e.getMessage());
+                Thread.currentThread().interrupt();
             }
         };
-        final Thread thread = new Thread(runnable);
+        final Thread thread = factory.makeThread(runnable);
         thread.start();
     }
 
     public static PolicyEngine getPolicyEngine() {
         return policyEngine;
     }
+
+    /**
+     * Factory to provide various data.  May be overridden by junit tests.
+     */
+    public static class Factory {
+        public BrmsHandler makeBrmsHandler(String configFile) throws PolicyException {
+            return new BrmsHandler(configFile);
+        }
+
+        public Thread makeThread(Runnable runnable) {
+            return new Thread(runnable);
+        }
+    }
 }
diff --git a/BRMSGateway/src/test/java/org/onap/policy/brms/api/BrmsGatewayTest.java b/BRMSGateway/src/test/java/org/onap/policy/brms/api/BrmsGatewayTest.java
index fd8a7ed3b..b34b18b6d 100644
--- a/BRMSGateway/src/test/java/org/onap/policy/brms/api/BrmsGatewayTest.java
+++ b/BRMSGateway/src/test/java/org/onap/policy/brms/api/BrmsGatewayTest.java
@@ -7,9 +7,9 @@
  * 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.
@@ -20,37 +20,88 @@
 
 package org.onap.policy.brms.api;
 
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.fail;
-import static org.mockito.Matchers.any;
 
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Before;
+import org.junit.BeforeClass;
 import org.junit.Test;
-import org.junit.runner.RunWith;
 import org.mockito.Mockito;
-import org.powermock.api.mockito.PowerMockito;
-import org.powermock.core.classloader.annotations.PrepareForTest;
-import org.powermock.modules.junit4.PowerMockRunner;
+import org.onap.policy.api.PolicyException;
+import org.onap.policy.brms.api.BrmsGateway.Factory;
+import org.powermock.reflect.Whitebox;
 
-@RunWith(PowerMockRunner.class)
 public class BrmsGatewayTest {
+    private static final String FACTORY_FIELD = "factory";
+
+    private static Factory saveFactory;
+
+    private Thread thread;
+
+    @BeforeClass
+    public static void setUpBeforeClass() {
+        saveFactory = Whitebox.getInternalState(BrmsGateway.class, FACTORY_FIELD);
+    }
+
+    @AfterClass
+    public static void tearDownAfterClass() {
+        Whitebox.setInternalState(BrmsGateway.class, FACTORY_FIELD, saveFactory);
+    }
+
+    /**
+     * Installs a factory.
+     */
+    @Before
+    public void setUp() {
+        thread = null;
+
+        Factory factory = new Factory() {
+            @Override
+            public BrmsHandler makeBrmsHandler(String configFile) throws PolicyException {
+                // Mock handler
+                return Mockito.mock(BrmsHandler.class);
+            }
+
+            @Override
+            public Thread makeThread(Runnable runnable) {
+                thread = super.makeThread(runnable);
+                return thread;
+            }
+
+        };
+
+        Whitebox.setInternalState(BrmsGateway.class, FACTORY_FIELD, factory);
+    }
+
+    /**
+     * Interrupts the thread, if there is one.
+     */
+    @After
+    public void tearDown() throws InterruptedException {
+        if (thread != null) {
+            thread.interrupt();
+            thread.join(5000L);
+            assertFalse(thread.isAlive());
+        }
+    }
+
+    @Test
+    public void testFactory() throws InterruptedException {
+        assertNotNull(saveFactory);
+        assertNotNull(saveFactory.makeThread(() -> { }));
+    }
+
     @Test
     public void testGet() {
         assertNull(BrmsGateway.getPolicyEngine());
     }
 
-    @PrepareForTest({Thread.class, BrmsGateway.class})
     @Test
     public void testMain() throws Exception {
-        // Mock Thread
-        PowerMockito.spy(Thread.class);
-        PowerMockito.doNothing().when(Thread.class);
-        Thread.sleep(1000);
-
-        // Mock handler
-        final BrmsHandler handler = Mockito.mock(BrmsHandler.class);
-        PowerMockito.whenNew(BrmsHandler.class).withArguments(any()).thenReturn(handler);
-
-        // Run app
         try {
             final String[] args = new String[0];
             BrmsGateway.main(args);