public void Returns_correct_sequence()
{
RangeExpansion rangeExpansion = new RangeExpansion();
var input = "1,2,3,7-12,20,23-25";
var expectedResult = new List <int> {
1, 2, 3, 7, 8, 9, 10, 11, 12, 20, 23, 24, 25
};
Assert.Equal(expectedResult, rangeExpansion.Start(input));
}
public void Throws_ArgumentNullException_when_input_is_null()
{
RangeExpansion rangeExpansion = new RangeExpansion();
Assert.Throws <ArgumentNullException>(() => rangeExpansion.Start(null));
}
