Implement owner setup and browser authentication sessions

internal/domain/identity_test.go

@@ -0,0 +1,26 @@
+package domain
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestNewOwnerIdentityNormalizesAndFoldsUsername(t *testing.T) {
+	t.Parallel()
+
+	identity, err := NewOwnerIdentity("  ÉLIJAH  ", "  Elijah Kuntz  ")
+	if err != nil {
+		t.Fatalf("NewOwnerIdentity returned an error: %v", err)
+	}
+	if identity.Username != "ÉLIJAH" || identity.UsernameKey != "élijah" || identity.DisplayName != "Elijah Kuntz" {
+		t.Fatalf("unexpected identity: %#v", identity)
+	}
+}
+
+func TestValidatePasswordRejectsShortPassword(t *testing.T) {
+	t.Parallel()
+
+	if err := ValidatePassword("too-short"); !errors.Is(err, ErrInvalidPassword) {
+		t.Fatalf("ValidatePassword error = %v, want %v", err, ErrInvalidPassword)
+	}
+}