User left project event added

spec/observers/users_project_observer_spec.rb

@@ -45,4 +45,23 @@ describe UsersProjectObserver do
       subject.after_update(users_project)
     end
   end
+  describe "#after_destroy" do
+    it "should called when UsersProject destroyed" do
+      subject.should_receive(:after_destroy)
+      UsersProject.observers.enable :users_project_observer do
+        UsersProject.bulk_delete(
+          users_project.project,
+          [users_project.user.id]
+        )
+      end
+    end
+    it "should create new event" do
+      Event.should_receive(:create).with(
+        project_id: users_project.project.id, 
+        action: Event::Left, 
+        author_id: users_project.user.id
+      )
+      subject.after_destroy(users_project)
+    end
+  end
 end