public void op_CompareTo_BritishPostcode(int expected,
string value,
string comparand)
{
BritishPostcode postcode1 = value;
BritishPostcode postcode2 = comparand;
Assert.Equal(expected, postcode1.CompareTo(postcode2));
Assert.Equal(expected, postcode1.CompareTo((object)postcode2));
}
public void op_CompareTo_object_whenString()
{
BritishPostcode obj = "GU21 4XG";
Assert.Throws <ArgumentOutOfRangeException>(() => obj.CompareTo((object)"GU21 4XG"));
}