Add ability to destroy a user with 0 posts

spec/controllers/admin/users_controller_spec.rb

@@ -161,6 +161,34 @@ describe Admin::UsersController do
       end
     end
 
+    context '.destroy' do
+      before do
+        @delete_me = Fabricate(:user)
+      end
+
+      it "raises an error when the user doesn't have permission" do
+        Guardian.any_instance.expects(:can_delete_user?).with(@delete_me).returns(false)
+        xhr :delete, :destroy, id: @delete_me.id
+        response.should be_forbidden
+      end
+
+      it "returns a 403 if the user doesn't exist" do
+        xhr :delete, :destroy, id: 123123
+        response.should be_forbidden
+      end
+
+      it "returns an error if the user has posts" do
+        Fabricate(:post, user: @delete_me)
+        xhr :delete, :destroy, id: @delete_me.id
+        response.should be_forbidden
+      end
+
+      it "deletes the user record" do
+        UserDestroyer.any_instance.expects(:destroy).returns(true)
+        xhr :delete, :destroy, id: @delete_me.id
+      end
+    end
+
   end
 
 end