public void TestDefaultHostTags()
{
InMemoryReporter spanReporter = new InMemoryReporter();
Tracer tracer = new Tracer.Builder("x")
.WithReporter(spanReporter)
.Build();
string hostname = tracer.GetHostName();
string hostIPv4 = Dns.GetHostAddresses(hostname).First(ip => ip.AddressFamily == AddressFamily.InterNetwork).ToString();
Assert.Equal(hostname, tracer.Tags[Constants.TracerHostnameTagKey]);
Assert.Equal(hostIPv4, tracer.Tags[Constants.TracerIpTagKey]);
Assert.Equal(Utils.IpToInt(hostIPv4), tracer.IPv4);
}