public void ReturnsZero_If_InputIsEmpty() { var inverter = new CaptchaInverter(string.Empty); var sum = inverter.GetSum(); sum.Should().Be(0); }
public void Returns_Expected(string input, int expected) { var inverter = new CaptchaInverter(input); var sum = inverter.GetSum(); sum.Should().Be(expected); }
public void ReturnsDigit_If_InputContainsSameTwoDigits() { var inverter = new CaptchaInverter("11"); var sum = inverter.GetSum(); sum.Should().Be(2); }
public void ReturnsDigit_If_InputContainsDifferentTwoDigits() { var inverter = new CaptchaInverter("12"); var sum = inverter.GetSum(); sum.Should().Be(0); }
public void ReturnsDigit_If_InputContainsExactlyOneDigit() { var inverter = new CaptchaInverter("9"); var sum = inverter.GetSum(); sum.Should().Be(9); }