require_relative '../../fixtures/rational' describe :rational_arithmetic_exception_in_coerce, shared: true do it "does not rescue exception raised in other#coerce" do b = mock("numeric with failed #coerce") b.should_receive(:coerce).and_raise(RationalSpecs::CoerceError) # e.g. Rational(3, 4) + b -> { Rational(3, 4).send(@method, b) }.should raise_error(RationalSpecs::CoerceError) end end