package test import ( "testing" "github.com/miekg/coredns/core" ) // Bind to low port should fail. func TestFailStartServer(t *testing.T) { corefile := `.:53 { chaos CoreDNS-001 miek@miek.nl } ` srv, _ := core.TestServer(t, corefile) err := srv.ListenAndServe() if err == nil { srv.Stop() t.Fatalf("Low port startup should fail") } }