Added tests for NotificationSettings (#143).

src/main/java/org/gitlab4j/api/GitLabApi.java

@@ -49,6 +49,7 @@ public class GitLabApi {
     private MergeRequestApi mergeRequestApi;
     private MilestonesApi milestonesApi;
     private NamespaceApi namespaceApi;
+    private NotificationSettingsApi notificationSettingsApi;
     private PipelineApi pipelineApi;
     private ProjectApi projectApi;
     private RepositoryApi repositoryApi;
@@ -848,6 +849,25 @@ public class GitLabApi {
         return (notesApi);
     }
 
+    /**
+     * Gets the NotesApi instance owned by this GitLabApi instance. The NotesApi is used
+     * to perform all notes related API calls.
+     *
+     * @return the NotesApi instance owned by this GitLabApi instance
+     */
+    public NotificationSettingsApi getNotificationSettingsApi() {
+
+        if (notificationSettingsApi == null) {
+            synchronized (this) {
+                if (notificationSettingsApi == null) {
+                    notificationSettingsApi = new NotificationSettingsApi(this);
+                }
+            }
+        }
+
+        return (notificationSettingsApi);
+    }
+
     /**
      * Gets the PipelineApi instance owned by this GitLabApi instance. The PipelineApi is used
      * to perform all pipeline related API calls.

src/test/java/org/gitlab4j/api/TestGitLabApiBeans.java

@@ -48,6 +48,7 @@ import org.gitlab4j.api.models.Member;
 import org.gitlab4j.api.models.MergeRequest;
 import org.gitlab4j.api.models.Milestone;
 import org.gitlab4j.api.models.Note;
+import org.gitlab4j.api.models.NotificationSettings;
 import org.gitlab4j.api.models.OauthTokenResponse;
 import org.gitlab4j.api.models.Pipeline;
 import org.gitlab4j.api.models.Project;
@@ -331,6 +332,17 @@ public class TestGitLabApiBeans {
         }
     }
 
+    @Test
+    public void testNotificationSettings() {
+
+        try {
+            NotificationSettings settings = makeFakeApiCall(NotificationSettings.class, "notification-settings");
+            assertTrue(compareJson(settings, "notification-settings"));
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
     @Test
     public void testProject() {