public async Task Resolve_ShouldUse_DnsClients_DnsServers() { // Arrange var nameServers = new[] { new IPEndPoint(IPAddress.Parse("15.46.251.79"), 53), new IPEndPoint(IPAddress.Parse("8.8.8.8"), 53), new IPEndPoint(IPAddress.Parse("10.3.15.47"), 66) }; _dnsClients.NameServers().Returns(nameServers.ToList()); _dnsClients.DnsClient(Arg.Any <IReadOnlyCollection <IPEndPoint> >()).Returns(args => { var dnsClient = Substitute.For <IDnsClient>(); dnsClient.NameServers.Returns(args.ArgAt <IReadOnlyCollection <IPEndPoint> >(0)); return(dnsClient); }); var client = new Core.OS.Net.Dns.DnsClient(_dnsClients, _networkInterfaces); // Act await client.Resolve("some.host", CancellationToken.None); // Assert client.NameServers.Should().BeEquivalentTo(nameServers); }
private void RefreshDnsClient() { if (!_addressChanged) { return; } _addressChanged = false; var dnsServers = _dnsClients.NameServers(); if (_dnsClient.NameServers.ToHashSet().SetEquals(dnsServers)) { return; } _dnsClient = _dnsClients.DnsClient(dnsServers); }