internal async Task GetIpAddressAsync_Force_IsRespected(IpAddressMode ipAddressMode, string expectedResult)
{
// Arrange
var addresses = new IPAddress[]
{
IPAddress.Parse("127.0.0.1"),
IPAddress.Parse("::1")
};
var mockLookupClient = new Mock <ILookupClient>();
var mockDotNetDnsClient = new Mock <IDotNetDnsClient>();
mockDotNetDnsClient
.Setup(m => m.GetHostAddressesAsync("cb.somewhere.com"))
.ReturnsAsync(addresses);
var resolver =
new DnsClientDnsResolver(mockLookupClient.Object, mockDotNetDnsClient.Object, new Mock <ILogger <DnsClientDnsResolver> >().Object)
{
IpAddressMode = ipAddressMode
};
// Act
var result = await resolver.GetIpAddressAsync("cb.somewhere.com");
// Assert
Assert.NotNull(result);
Assert.Equal(IPAddress.Parse(expectedResult), result);
}
internal async Task GetIpAddressAsync_Preference_IsRespected(IpAddressMode ipAddressMode, AddressFamily expectedFamily)
{
// Arrange
var ipv4Record = new AddressRecord(
new ResourceRecordInfo("cb.somewhere.com.", ResourceRecordType.A, QueryClass.IN, 100, 100),
IPAddress.Parse("127.0.0.1"));
var mockIpv4Response = new Mock <IDnsQueryResponse>();
mockIpv4Response
.Setup(x => x.HasError).Returns(false);
mockIpv4Response
.Setup(x => x.Answers)
.Returns(new List <AddressRecord> {
ipv4Record
});
var ipv6Record = new AddressRecord(
new ResourceRecordInfo("cb.somewhere.com.", ResourceRecordType.AAAA, QueryClass.IN, 100, 100),
IPAddress.Parse("::1"));
var mockIpv6Response = new Mock <IDnsQueryResponse>();
mockIpv6Response
.Setup(x => x.HasError).Returns(false);
mockIpv6Response
.Setup(x => x.Answers)
.Returns(new List <AddressRecord> {
ipv6Record
});
var mockLookupClient = new Mock <ILookupClient>();
mockLookupClient
.Setup(x => x.QueryAsync("cb.somewhere.com.", QueryType.A, QueryClass.IN, default))
.ReturnsAsync(mockIpv4Response.Object);
mockLookupClient
.Setup(x => x.QueryAsync("cb.somewhere.com.", QueryType.AAAA, QueryClass.IN, default))
.ReturnsAsync(mockIpv6Response.Object);
var resolver =
new DnsClientDnsResolver(mockLookupClient.Object, new Mock <ILogger <DnsClientDnsResolver> >().Object)
{
IpAddressMode = ipAddressMode
};
// Act
var result = await resolver.GetIpAddressAsync("cb.somewhere.com");
// Assert
Assert.NotNull(result);
Assert.Equal(expectedFamily, result.AddressFamily);
}
internal async Task GetIpAddressAsync_Force_IsRespected(IpAddressMode ipAddressMode)
{
// Arrange
var expectedQuery = ipAddressMode == IpAddressMode.ForceIpv4 ? QueryType.A : QueryType.AAAA;
var notExpectedQuery = ipAddressMode == IpAddressMode.ForceIpv4 ? QueryType.AAAA : QueryType.A;
var record = expectedQuery == QueryType.A
? new AddressRecord(
new ResourceRecordInfo("cb.somewhere.com.", ResourceRecordType.A, QueryClass.IN, 100, 100),
IPAddress.Parse("127.0.0.1"))
: new AddressRecord(
new ResourceRecordInfo("cb.somewhere.com.", ResourceRecordType.AAAA, QueryClass.IN, 100, 100),
IPAddress.Parse("::1"));
var mockResponse = new Mock <IDnsQueryResponse>();
mockResponse
.Setup(x => x.HasError).Returns(false);
mockResponse
.Setup(x => x.Answers)
.Returns(new List <AddressRecord> {
record
});
var mockLookupClient = new Mock <ILookupClient>();
mockLookupClient
.Setup(x => x.QueryAsync("cb.somewhere.com.", expectedQuery, QueryClass.IN, default))
.ReturnsAsync(mockResponse.Object);
var resolver =
new DnsClientDnsResolver(mockLookupClient.Object, new Mock <ILogger <DnsClientDnsResolver> >().Object)
{
IpAddressMode = ipAddressMode
};
// Act
var result = await resolver.GetIpAddressAsync("cb.somewhere.com");
// Assert
Assert.NotNull(result);
Assert.Equal(record.Address, result);
mockLookupClient.Verify(
x => x.QueryAsync(It.IsAny <string>(), notExpectedQuery, It.IsAny <QueryClass>(), It.IsAny <CancellationToken>()),
Times.Never);
}
public ArpEntry(IPAddress ipAddress, ulong macAddress, IpAddressMode mode)
{
this.IpAddress = ipAddress;
this.MacAddress = macAddress;
this.Mode = mode;
}