RSpecはテスト対象のIDを含むshould_receiveマクロ

Question

これを書くにはどうすればハードコードなしで渡すことができます1。鶏と卵。

@sender = Factory(:user) 
@receiver = Factory(:user) 

mailer = double 
mailer.should_receive(:deliver) 
Mailer.should_receive(:email).with(1, @sender.id, @receiver.id).and_return(mailer) 

# This will create an object with id #1 to make this test pass 
@object = Object.create(:sender => @sender, :receiver => @receiver) 

Answer 1

これはいかがですか？

Mailer.should_receive(:email).with(an_instance_of(Fixnum), @sender.id, @receiver.id).and_return(mailer)