public void GetLongestMagicNumber_NoMagicNumberDefined_Negative()
{
// Arrange
var magicNumber = new MagicNumberMapping();
// Act
Action act = () => magicNumber.GetLongestMagicNumber();
// Assert
act.Should().Throw <InvalidConfigurationException>("there are no magic numbers defined at all, hence no longest number");
}
public void GetLongestMagicNumber_Positive()
{
// Arrange
var longestMagicNumberToAdd = 10;
var fileMagicNumberMapping = new MagicNumberMapping();
for (var i = 1; i <= longestMagicNumberToAdd; i++)
{
var magicNumber = Enumerable.Repeat(new byte?(1), i).ToArray();
var type = i.ToString();
fileMagicNumberMapping.AddMagicNumber(magicNumber, type);
}
// Act
var longestMagicNumber = fileMagicNumberMapping.GetLongestMagicNumber();
// Assert
longestMagicNumber.Should().Be(longestMagicNumberToAdd);
}