wip: migrate to mono-repo. SPN has already been moved to spn/

service/resolver/reverse_test.go

@@ -0,0 +1,41 @@
+package resolver
+
+import (
+	"context"
+	"testing"
+
+	"github.com/safing/portbase/log"
+)
+
+func testReverse(t *testing.T, ip, result, expectedErr string) {
+	t.Helper()
+
+	ctx, tracer := log.AddTracer(context.Background())
+	defer tracer.Submit()
+
+	domain, err := ResolveIPAndValidate(ctx, ip)
+	if err != nil {
+		tracer.Warning(err.Error())
+		if expectedErr == "" || err.Error() != expectedErr {
+			t.Errorf("reverse-validating %s: unexpected error: %s", ip, err)
+		}
+		return
+	}
+
+	if domain != result {
+		t.Errorf("reverse-validating %s: unexpected result: %s", ip, domain)
+	}
+}
+
+func TestResolveIPAndValidate(t *testing.T) {
+	t.Parallel()
+
+	testReverse(t, "198.41.0.4", "a.root-servers.net.", "")
+	// testReverse(t, "9.9.9.9", "dns.quad9.net.", "") // started resolving to dns9.quad9.net.
+	// testReverse(t, "2620:fe::fe", "dns.quad9.net.", "") // fails sometimes for some (external) reason
+	testReverse(t, "1.1.1.1", "one.one.one.one.", "")
+	testReverse(t, "2606:4700:4700::1111", "one.one.one.one.", "")
+
+	testReverse(t, "93.184.216.34", "example.com.", "record could not be found: 34.216.184.93.in-addr.arpa.PTR")
+	testReverse(t, "185.199.109.153", "cdn-185-199-109-153.github.com.", "record could not be found: 153.109.199.185.in-addr.arpa.PTR")
+}