Feature: Simple math
        In order to avoid silly mistakes
        As a math idiot
        I want to be told the result of simple math operations

        Scenario: adition
                Given I have entered 50 into the calculator
                And I have entered 70 into the calculator
                When I press add
                Then I should see 120 on the screen

        Scenario: subtraction
                Given I have entered 60 into the calculator
                And I have entered 30 into the calculator
                When I press sub
                Then I should see 30 on the screen