public void TestTryCreateIPAddressRangeFromIPAddresses()
{
var ip1 = System.Net.IPAddress.Parse("1.1.1.1");
var ip2 = System.Net.IPAddress.Parse("1.1.1.2");
var ip3 = System.Net.IPAddress.Parse("1.1.1.3");
var ip4 = System.Net.IPAddress.Parse("1.1.1.4");
var ip5 = IPAddressRange.Parse("1.1.1.5-1.1.1.10");
var ip6 = System.Net.IPAddress.Parse("255.255.255.254");
var ip7 = System.Net.IPAddress.Parse("255.255.255.255");
IPAddressRange range = IPAddressRange.TryCreateFromIPAddressRanges(ip1, ip2, ip3, ip4);
Assert.AreEqual("1.1.1.1/1.1.1.4", range.ToString());
range = IPAddressRange.TryCreateFromIPAddresses(ip1, ip2, ip3, ip4);
Assert.AreEqual("1.1.1.1/1.1.1.4", range.ToString());
range = IPAddressRange.TryCreateFromIPAddressRanges(ip1, ip2, ip3, ip4, ip5);
Assert.AreEqual("1.1.1.1/1.1.1.10", range.ToString());
range = IPAddressRange.TryCreateFromIPAddressRanges(ip6, ip7);
Assert.AreEqual("255.255.255.254/255.255.255.255", range.ToString());
range = IPAddressRange.TryCreateFromIPAddresses(ip6, ip7);
Assert.AreEqual("255.255.255.254/255.255.255.255", range.ToString());
range = IPAddressRange.TryCreateFromIPAddressRanges(ip1, ip3);
Assert.IsNull(range);
range = IPAddressRange.TryCreateFromIPAddresses(ip1, ip3);
Assert.IsNull(range);
}