There is the following code:
def index
@car_types = car_brand.car_types
end
def car_brand
CarBrand.find(params[:car_brand_id])
rescue ActiveRecord::RecordNotFound
raise Errors::CarBrandNotFound.new
end
I want to test it through RSpec. My code is:
it 'raises CarBrandNotFound exception' do
get :index, car_brand_id: 0
expect(response).to raise_error(Errors::CarBrandNotFound)
end
CarBrand with id equaling 0 doesn't exist, therefore my controller code raises Errors::CarBrandNotFound, but my test code tells me that nothing was raised. How can I fix it? What do I wrong?
Use expect{}
instead of expect()
.
Example:
it do
expect { response }.to raise_error(Errors::CarBrandNotFound)
end
In order to spec error handling, your expectations need to be set on a block; evaluating an object cannot raise an error.
So you want to do something like this:
expect {
get :index, car_brand_id: 0
}.to raise_error(Errors::CarBrandNotFound)
See Expect error for details.
I am a bit surprised that you don't get any exception bubbling up to your spec results, though.
get :index, car_brand_id: 0
itself doesn't raise an error.
get :index
will never raise an exception - it will rather set response to be an 500 error some way as a real server would do.
Instead try:
it 'raises CarBrandNotFound exception' do
controller.params[:car_brand_id] = 0
expect{ controller.car_brand }.to raise_error(Errors::CarBrandNotFound)
end
Success story sharing
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into{ }
! Thank you so much