Cleaned up comments

repository/src/test/java/org/apache/hadoop/metadata/RepositoryServiceLoadingTest.java

@@ -12,6 +12,9 @@ import org.testng.annotations.Test;
 
 /**
  * Unit test for Guice injector service loading
+ * 
+ * Uses TestNG's Guice annotation to load the necessary modules and inject the
+ * objects from Guice
  */
 @Guice(modules = RepositoryMetadataModule.class)
 public class RepositoryServiceLoadingTest {
@@ -29,9 +32,6 @@ public class RepositoryServiceLoadingTest {
 
 	@Test
 	public void testGetGraphService() throws Exception {
-		/*
-		 * Now that we've got the injector, we can build objects.
-		 */
 		Assert.assertNotNull(gs);
 	}
 }

repository/src/test/java/org/apache/hadoop/metadata/services/GraphBackedMetadataRepositoryTest.java

@@ -35,6 +35,12 @@ import com.tinkerpop.blueprints.Direction;
 import com.tinkerpop.blueprints.Edge;
 import com.tinkerpop.blueprints.Vertex;
 
+/**
+ * GraphBackedMetadataRepository test
+ * 
+ * Guice loads the dependencies and injects the necessary objects
+ *
+ */
 @Test (enabled = false)
 @Guice(modules = RepositoryMetadataModule.class)
 public class GraphBackedMetadataRepositoryTest {
@@ -52,8 +58,9 @@ public class GraphBackedMetadataRepositoryTest {
 
     @BeforeClass
     public void setUp() throws Exception {
+    	// start the injected graph service
         titanGraphService.start();
-
+        // start the injected repository service
         repositoryService.start();
 
         ts = TypeSystem.getInstance();