public void Render_ShouldThrowException_WhenNegativeTurnedOffLampsValueIsGiven()
{
var request = new BerlinClockRendererRequest
{
TurnedOnLampSign = 'X',
AmountOfTurnedOnLamps = 1,
AmountOfTurnedOffLamps = -1
};
Assert.Throws <Exception>(() => _sut.Render(request));
}
public void Render_ShouldModifyResult_WhenAdditionalFormattingIsGiven()
{
var expectedValue = "TEST";
var request = new BerlinClockRendererRequest
{
AdditionalFormatting = (row) => expectedValue,
TurnedOnLampSign = 'X',
AmountOfTurnedOnLamps = 1,
AmountOfTurnedOffLamps = 1
};
var result = _sut.Render(request);
Assert.That(result, Is.EqualTo(expectedValue));
}
public string Render(BerlinClockRendererRequest request)
{
if (request.AmountOfTurnedOffLamps < 0 || request.AmountOfTurnedOnLamps < 0)
{
throw new Exception("Cannot render negative values");
}
var stringBuilder = new StringBuilder();
stringBuilder.Append(request.TurnedOnLampSign, request.AmountOfTurnedOnLamps);
stringBuilder.Append(TurnedOffLampSign, request.AmountOfTurnedOffLamps);
var row = stringBuilder.ToString();
return(request.AdditionalFormatting != null
? request.AdditionalFormatting(row) : row);
}
