Rspec：模型中的模拟update_attributes

Question

I'm pretty new in testing rails applications. Now, I'm learning how to mock methods.

I have method that changes password in my User model:

  def change_password(user, pass)
    self.update_attributes(user) if self.password_hash == self.encrypt_password(pass)
  end

All I want to do is to mock method update_attributes. To do this, I wrote a test:

let (:user) {FactoryGirl.build(:user)}
subject{user}
...
describe "#change_password" do
  before {user.save}
    context "when old password doesn't match" do
      it "should not update password" do
        user.should_not_receive(:update_attributes)
        user.change_password(user,"invalid")
      end
    end
  end

But when I run it, I am getting error:

NoMethodError:
       undefined method `should_not_receive' for #<User:0x0000000455daf8>

ALSO, I've tried to mock update_attributes method like this:

user.change_password.should_not_receive(:update_attributes)

and I've got another mistake:

ArgumentError:
       wrong number of arguments (0 for 2)

And I couldn't find any manual of how to mock methods inside methods with attributes.

Could anybody help me with my problem,please?

Answer 1

To use should_receive method u need to set config.mock_with :rspec but I've set config.mock_with :mocha . So I should use expects instead of should_receive .