public void LargestSubnet_NullInput_ReturnsNull_Test()
{
// Arrange
// Act
var result = SubnetUtilities.LargestSubnet(null);
// Assert
Assert.Null(result);
}
public void LargestSubnet_EmptyInput_ReturnsNull_Test()
{
// Arrange
var subnets = Enumerable.Empty <Subnet>();
// Act
var result = SubnetUtilities.LargestSubnet(subnets);
// Assert
Assert.Null(result);
}
public void LargestSubnetLargestOfNoneTest()
{
// Arrange
var subnets = new Subnet[] {};
// Act
var result = SubnetUtilities.LargestSubnet(subnets);
// Assert
Assert.IsNull(result);
}
public void LargestSubnet_Example()
{
// Arrange
var tall = Subnet.Parse("255.255.255.254/31"); // 2^1 = 2
var grande = Subnet.Parse("192.168.1.0/24"); // 2^8 = 256
var vente = Subnet.Parse("10.10.0.0/16"); // 2^16 = 65536
var trenta = Subnet.Parse("16.240.0.0/12"); // 2^20 = 1048576
var subnets = new[] { tall, grande, vente, trenta };
// Act
var result = SubnetUtilities.LargestSubnet(subnets);
// Assert
Assert.Equal(trenta, result);
}
public void LargestSubnet_Single_ReturnSingle_Test()
{
// Arrange
var expected = new Subnet(IPAddress.Any, 16);
var subnets = new[]
{
expected
};
// Act
var result = SubnetUtilities.LargestSubnet(subnets);
// Assert
Assert.Same(expected, result);
}
public void LargestSubnet_Ambiguous_ReturnsOneOfLargest_Test()
{
// Arrange
var subnets = new[]
{
new Subnet(IPAddress.Any, 24),
new Subnet(IPAddress.Any, 16),
new Subnet(IPAddress.Any, 16),
new Subnet(IPAddress.Any, 32)
};
// Act
var result = SubnetUtilities.LargestSubnet(subnets);
// Assert
Assert.Equal(new Subnet(IPAddress.Any, 16), result);
}
public void LargestSubnetLargestOfOneTest()
{
// Arrange
var expected = new Subnet(IPAddress.Any, 16);
var subnets = new[]
{
expected
};
// Act
var result = SubnetUtilities.LargestSubnet(subnets);
// Assert
Assert.AreSame(expected, result);
}
public void LargestSubnetAmbiguousLargestOfThreeOneTest()
{
// Arrange
var subnets = new[]
{
new Subnet(IPAddress.Any, 24),
new Subnet(IPAddress.Any, 16),
new Subnet(IPAddress.Any, 16),
new Subnet(IPAddress.Any, 32)
};
// Act
var result = SubnetUtilities.LargestSubnet(subnets);
// Assert
Assert.AreEqual(new Subnet(IPAddress.Any, 16), result);
}
