Hartl's ROR Chapter10 microposts test failed - ruby-on-rails

Question

From chapter10.23, file: spec/requests/authentication_pages_spec.rb
require 'spec_helper'
describe "Authentication" do
.
.
.
describe "authorization" do
describe "for non-signed-in users" do
let(:user) { FactoryGirl.create(:user) }
.
.
.
describe "in the Microposts controller" do
describe "submitting to the create action" do
before { post microposts_path }
specify { expect(response).to redirect_to(signin_path) }
end
describe "submitting to the destroy action" do
before { delete micropost_path(FactoryGirl.create(:micropost)) }
specify { expect(response).to redirect_to(signin_path) }
end
end
.
.
.
end
end
end
when i tried to pass the test. one of them failed and the message is shown below:
1) Authentication authorization for non-signed-in users in the Microposts controller
submitting to the destroy action
Failure/Error: before { delete micropost_path(FactoryGirl.create(:micropost)) }
ActiveRecord::RecordInvalid:
Validation failed: User can't be blank
# ./spec/requests/authentication_pages_spec.rb:90:in `block (6 levels) in <top (required)>'
the problem is I discontinued from learning ROR for a while so I don't know where I did wrong and why the test failed with this message.
Can anyone help?

Answer 1

I think your FactoryGirl.create(:micropost) is invalid! It looks like you have a vlidation of user on presense in Micropost but you did not specify user in factory.
You should define factory for micropost as
FactoryGirl.define do
factory :micropost do
...
user
...
end
end
or call Factory.create with existed user (you define user before in a let-block): FactoryGirl.create(:micropost, user: user)
You should choose a way according to your needs (workflow logic)