// Copyright (c) 2026 Storm Dragon
// Authors: Storm Dragon, Angus Kola
// SPDX-License-Identifier: GPL-3.0-or-later

package atspi

import (
	"strings"
	"testing"
	"unicode/utf8"
)

func TestLibreOfficeFormulaPreservesLiteralSpacesAndBoundedPrefix(t *testing.T) {
	formula := `="two  spaces"`
	if got := sanitizeLibreOfficeFormula(formula); got != formula {
		t.Fatalf("formula literal changed: %q", got)
	}
	formula += strings.Repeat("猫", maxSnapshotFieldLength)
	got := sanitizeLibreOfficeFormula(formula)
	if len(got) > maxSnapshotFieldLength || !utf8.ValidString(got) || !strings.HasPrefix(formula, got) {
		t.Fatalf("invalid bounded formula prefix: bytes=%d", len(got))
	}
}