primeiro commit

internal/dnsrecord/validator_test.go

@@ -0,0 +1,75 @@
+package dnsrecord
+
+import "testing"
+
+func TestValidateRRSetAcceptsSupportedRecords(t *testing.T) {
+	v := newTestValidator(t)
+
+	cases := []struct {
+		recordType string
+		content    string
+	}{
+		{"A", "192.0.2.10"},
+		{"AAAA", "2001:db8::1"},
+		{"CAA", `0 issue "letsencrypt.org"`},
+		{"CNAME", "target.example.org."},
+		{"MX", "10 mail.example.org."},
+		{"NS", "ns1.example.org."},
+		{"SOA", "ns1.example.org. hostmaster.example.org. 2026010101 3600 600 604800 300"},
+		{"SRV", "10 20 443 service.example.org."},
+		{"TXT", `"v=spf1 -all"`},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.recordType, func(t *testing.T) {
+			if _, err := v.ValidateRRSet("www.example.org", tc.recordType, 300, []string{tc.content}); err != nil {
+				t.Fatalf("ValidateRRSet returned error: %v", err)
+			}
+		})
+	}
+}
+
+func TestValidateRRSetRejectsInvalidRecords(t *testing.T) {
+	v := newTestValidator(t)
+
+	cases := []struct {
+		name       string
+		recordType string
+		content    string
+	}{
+		{"bad name", "A", "192.0.2.10"},
+		{"www.example.org.", "A", "2001:db8::1"},
+		{"www.example.org.", "AAAA", "192.0.2.10"},
+		{"www.example.org.", "MX", "mail.example.org."},
+		{"www.example.org.", "CNAME", "target.example.org"},
+		{"www.example.org.", "TXT", "not quoted"},
+		{"www.example.org.", "SOA", "ns1.example.org. hostmaster.example.org."},
+		{"www.example.org.", "UNSUPPORTED", "value"},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.recordType+" "+tc.content, func(t *testing.T) {
+			if _, err := v.ValidateRRSet(tc.name, tc.recordType, 300, []string{tc.content}); err == nil {
+				t.Fatal("expected validation error")
+			}
+		})
+	}
+}
+
+func TestValidateRRSetRequiresTTL(t *testing.T) {
+	v := newTestValidator(t)
+
+	if _, err := v.ValidateRRSet("www.example.org.", "A", 0, []string{"192.0.2.10"}); err == nil {
+		t.Fatal("expected ttl validation error")
+	}
+}
+
+func newTestValidator(t *testing.T) *Validator {
+	t.Helper()
+
+	v, err := NewValidator()
+	if err != nil {
+		t.Fatalf("NewValidator returned error: %v", err)
+	}
+	return v
+}