1 files changed, 17 insertions, 0 deletions
diff --git a/internal/smtpclient/client_test.go b/internal/smtpclient/client_test.go
new file mode 100644
index 0000000..6572f9a
--- /dev/null
+++ b/internal/smtpclient/client_test.go
@@ -0,0 +1,17 @@
+package smtpclient
+
+import "testing"
+
+func TestValidateOnionRequiresProxy(t *testing.T) {
+	err := validate(Config{Host: "mail.example.onion", Port: "465", Mode: "TLS", ProxyType: "DIRECT"}, "a@example.org", []string{"news@example.org"})
+	if err == nil {
+		t.Fatal("expected onion proxy validation error")
+	}
+}
+
+func TestValidateAllowsCleartextOnion(t *testing.T) {
+	err := validate(Config{Host: "mail.example.onion", Port: "25", Mode: "", ProxyType: "SOCKS5", ProxyAddress: "127.0.0.1:9050"}, "a@example.org", []string{"news@example.org"})
+	if err != nil {
+		t.Fatalf("cleartext onion SMTP should be allowed: %v", err)
+	}
+}