Understanding assert_difference in Ruby on Rails
Kann jemand erklären, was dieser Testcode tut? :
assert_difference('Post.count') do
post :create, :post => { :title => 'Hi', :body => 'This is my first post.'}
end
und
assert_difference 'ActionMailer::Base.deliveries.size', +1 do
post :invite_friend, :email => '[email protected]'
end
Ich kann es nicht verstehen, obwohl ich die Dokumentation gelesen habe.
Vielen Dank