public void SubnetMaskLengthTest_Valid()
{
var range = new IPAddressRange(IPAddress.Parse("192.168.75.23"), IPAddressRange.SubnetMaskLength(IPAddress.Parse("255.255.254.0")));
range.Begin.ToString().Is("192.168.74.0");
range.End.ToString().Is("192.168.75.255");
}
public void SubnetMaskLengthTest_Invalid()
{
AssertEx.Throws <ArgumentException>(() =>
new IPAddressRange(IPAddress.Parse("192.168.75.23"), IPAddressRange.SubnetMaskLength(IPAddress.Parse("255.255.54.0"))));
}