Adds a query string to include users' created activities in def show

app/controllers/api/v1/users_controller.rb

   end
 
   def show
+    if params[:included] === "true"
+    options = { include: [:activities] }
+    render json: UserSerializer.new(@user, options).serializable_hash.to_json
+    else
     render json: UserSerializer.new(@user).serializable_hash.to_json
+    end
   end
 
   def create

test/controllers/api/v1/users_controller_test.rb

     assert_response :success
     # Test to ensure response contains the correct email
 
-    json_response = JSON.parse(self.response.body)
-    assert_equal @user.email, json_response['data']['attributes']['email']
-    assert_equal @user.username, json_response['data']['attributes']['username']
+    json_response = JSON.parse(self.response.body, symbolize_names: true)
+    assert_equal @user.email, json_response.dig(:data, :attributes, :email)
+    assert_equal @user.username, json_response.dig(:data, :attributes, :username)
   end
 
   #CREATE