public void DHCPv4ScopeAddressProperties_NextAddress()
{
Random random = new Random();
Int32 addressRange = random.Next(0, 255);
IPv4Address start = random.GetIPv4Address();
IPv4Address end = start + addressRange;
Int32 usedAddreessAmount = random.Next(0, addressRange - 1);
List <IPv4Address> usedAddress = new List <IPv4Address>();
List <IPv4Address> excludedAddresses = new List <IPv4Address>();
for (int i = 0; i < usedAddreessAmount; i++)
{
IPv4Address nextAddress = start + i;
if (random.NextBoolean() == true)
{
usedAddress.Add(nextAddress);
}
else
{
excludedAddresses.Add(nextAddress);
}
}
DHCPv4ScopeAddressProperties properties = new DHCPv4ScopeAddressProperties(start, end, excludedAddresses,
addressAllocationStrategy: DHCPv4ScopeAddressProperties.AddressAllocationStrategies.Next);
IPv4Address next = properties.GetValidAddresses(usedAddress);
IPv4Address expectedAddress = start + usedAddreessAmount;
Assert.Equal(expectedAddress, next);
}
public void DHCPv4ScopeAddressProperties_RandomAddress()
{
Random random = new Random();
Int32 addressRange = random.Next(0, 255);
IPv4Address start = random.GetIPv4Address();
IPv4Address end = start + addressRange;
Int32 usedAddreessAmount = random.Next(0, addressRange - 1);
List <IPv4Address> usedAddress = new List <IPv4Address>();
List <IPv4Address> excludedAddresses = new List <IPv4Address>();
for (int i = 0; i < usedAddreessAmount; i++)
{
IPv4Address nextAddress = start + i;
if (random.NextBoolean() == true)
{
usedAddress.Add(nextAddress);
}
else
{
excludedAddresses.Add(nextAddress);
}
}
DHCPv4ScopeAddressProperties properties = new DHCPv4ScopeAddressProperties(start, end, excludedAddresses,
addressAllocationStrategy: DHCPv4ScopeAddressProperties.AddressAllocationStrategies.Random);
Int32 checkAmount = random.Next(100, 200);
for (int i = 0; i < checkAmount; i++)
{
IPv4Address next = properties.GetValidAddresses(usedAddress);
Assert.DoesNotContain(next, usedAddress);
Assert.DoesNotContain(next, excludedAddresses);
Assert.True(start <= next);
Assert.True(end >= next);
}
}
public void DHCPv4ScopeAddressProperties_PoolExhausted()
{
Random random = new Random();
Int32 addressRange = random.Next(0, 255);
IPv4Address start = random.GetIPv4Address();
IPv4Address end = start + addressRange;
List <IPv4Address> usedAddress = new List <IPv4Address>();
List <IPv4Address> excludedAddresses = new List <IPv4Address>();
for (int i = 0; i < addressRange + 1; i++)
{
IPv4Address nextAddress = start + i;
if (random.NextBoolean() == true)
{
usedAddress.Add(nextAddress);
}
else
{
excludedAddresses.Add(nextAddress);
}
}
List <DHCPv4ScopeAddressProperties.AddressAllocationStrategies> strategies = new List <DHCPv4ScopeAddressProperties.AddressAllocationStrategies> {
DHCPv4ScopeAddressProperties.AddressAllocationStrategies.Next,
DHCPv4ScopeAddressProperties.AddressAllocationStrategies.Random,
};
foreach (var item in strategies)
{
DHCPv4ScopeAddressProperties properties = new DHCPv4ScopeAddressProperties(start, end, excludedAddresses,
addressAllocationStrategy: item);
IPv4Address next = properties.GetValidAddresses(usedAddress);
Assert.Equal(IPv4Address.Empty, next);
}
}
public void DHCPv4ScopeAddressProperties_SingleAddressRange()
{
Random random = new Random();
List <DHCPv4ScopeAddressProperties.AddressAllocationStrategies> strategies = new List <DHCPv4ScopeAddressProperties.AddressAllocationStrategies> {
DHCPv4ScopeAddressProperties.AddressAllocationStrategies.Next,
DHCPv4ScopeAddressProperties.AddressAllocationStrategies.Random,
};
IPv4Address start = random.GetIPv4Address();
IPv4Address end = start;
foreach (var item in strategies)
{
DHCPv4ScopeAddressProperties properties = new DHCPv4ScopeAddressProperties(start, end, Array.Empty <IPv4Address>(),
addressAllocationStrategy: item);
IPv4Address next = properties.GetValidAddresses(Array.Empty <IPv4Address>());
Assert.Equal(start, next);
}
}