adding more tests for user controller

app/controllers/concerns/followable_controller.rb

@@ -22,7 +22,12 @@ module FollowableController
   # DELETE /v1/users/1/unfollow
   # DELETE /v1/users/1/unfollow.json
   def unfollow
-    current_user.unfollow(@followable) if current_user.following? @followable
+    if current_user.following?(@followable)
+      current_user.unfollow(@followable)
+      render nothing: true, status: :ok
+    else
+      render nothing: true, status: :forbidden
+    end
   end
 
 end
\ No newline at end of file

test/controllers/v1/users_controller_test.rb

@@ -36,7 +36,6 @@ class V1::UsersControllerTest < ActionController::TestCase
 
   test 'should put invalid user to update and return :unprocessable_entity code' do
     user = users(:john)
-
     put :update, user: {name: 'mauricio', email: '', password: 'test123455', password_confirmation: 'test123455',
                         terms_of_service: false}, id: user.id
     assert_response :unprocessable_entity
@@ -49,10 +48,28 @@ class V1::UsersControllerTest < ActionController::TestCase
   end
 
   test 'should user follow an user jack' do
-    user = users(:john)
-    auth_request user
+    auth_request users(:john)
+    post :follow, id: users(:jack).id
+    assert_response :created
+  end
+
+  test 'should user follow an already followed user and return :forbidden code' do
+    auth_request users(:john)
+
     post :follow, id: users(:jack).id
     assert_response :created
+
+    post :follow, id: users(:jack).id
+    assert_response :forbidden
+  end
+
+  test 'should user unfollow an user jack' do
+    auth_request users(:john)
+    post :follow, id: users(:jack).id
+    assert_response :created
+
+    delete :unfollow, id: users(:jack).id
+    assert_response :ok
   end
 
 end