ruby on rails - `allow_any_instance_of` mock not working in scope -

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my mock working when it's in before block shown below. quick , dirty representation of problem. literally when move line before block does not quack assertion, stops mocking :(

describe 'ducks', type: :feature   before     ...     allow_any_instance_of(duck).to receive(:quack).and_return('bark!')     visit animal_farm_path   end    context 'is odd duck'     'does not quack'       expect(duck.new.quack).to eq('bark!')     end   end end

i want here, doesn't work:

describe 'ducks', type: :feature   before     ...     visit animal_farm_path   end    context 'is odd duck'     'does not quack'       allow_any_instance_of(duck).to receive(:quack).and_return('bark!')       expect(duck.new.quack).to eq('bark!')     end   end end

my bad. original question poorly written. visiting page makes #quack call. mocks must done before whatever engages method call. solution

describe 'ducks', type: :feature   before     ...   end    context 'is odd duck'     'does not quack'       allow_any_instance_of(duck).to receive(:quack).and_return('bark!')       visit animal_farm_path        # in crude example, page prints out animals sound       expect(page).to have_text('bark!')     end   end end

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