Bootstrap copied BFF and local accounts with public Sendico contracts (#34)

backend/pkg/merrors/signup_email_policy_test.go

@@ -0,0 +1,52 @@
+package merrors
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestSignupEmailPolicyError(t *testing.T) {
+	err := SignupEmailPolicyRejected(SignupEmailPolicyReasonFreeDomain, "gmail.com")
+	policyErr, ok := AsSignupEmailPolicyError(err)
+	if !ok {
+		t.Fatalf("expected signup email policy error")
+	}
+	if policyErr.Reason() != SignupEmailPolicyReasonFreeDomain {
+		t.Fatalf("reason mismatch: got=%q", policyErr.Reason())
+	}
+	if policyErr.Domain() != "gmail.com" {
+		t.Fatalf("domain mismatch: got=%q", policyErr.Domain())
+	}
+	if !errors.Is(err, ErrSignupEmailPolicyRejected) {
+		t.Fatalf("expected signup email policy sentinel")
+	}
+
+	reason, ok := Reason(err)
+	if !ok {
+		t.Fatalf("expected generic reason")
+	}
+	if reason != SignupEmailPolicyReasonFreeDomain {
+		t.Fatalf("generic reason mismatch: got=%q", reason)
+	}
+}
+
+func TestSignupEmailPolicyReasonNormalization(t *testing.T) {
+	for _, reason := range []string{
+		SignupEmailPolicyReasonInvalidEmail,
+		SignupEmailPolicyReasonDisposableDomain,
+		SignupEmailPolicyReasonFreeDomain,
+	} {
+		if !IsSignupEmailPolicyReason(reason) {
+			t.Fatalf("expected supported reason: %q", reason)
+		}
+	}
+
+	err := SignupEmailPolicyRejected("unexpected_reason", "")
+	policyErr, ok := AsSignupEmailPolicyError(err)
+	if !ok {
+		t.Fatalf("expected signup email policy error")
+	}
+	if policyErr.Reason() != SignupEmailPolicyReasonInvalidEmail {
+		t.Fatalf("unexpected reasons must not leak: got=%q", policyErr.Reason())
+	}
+}