Stubbing controller methods with Capybara & Rspec

Although it is often a sign of code that needs to be refactored and is an anti-pattern, it is sometimes necessary to stub controller methods within RSpec when running integration/feature specs.

To avoid needing to use RSpec-mock’s allow_any_instance_of method, which I prefer to avoid using, I tend to create a new controller instance, stub the required method against the new controller instance, and then stub the controller class’ .new method to return the stubbed controller.


describe '[...]' do
  before do
    stubbed_controller =
    user = User.first

    allow(stubbed_controller).to receive(:current_user).and_return(user)
    allow(Controller).to receive(:new).and_return(stubbed_controller)
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