Calculator.Specs.Subtraction.Subtract_a_number C# (CSharp) Метод

        Scenario Subtract_a_number()
        {
            return Given(I_have_entered_70_into_the_calculator)
                   .And(I_have_entered_50_into_the_calculator)
                   .When(I_press_subtract)
                   .Then(the_result_should_be_20_on_the_screen);
        }