/**
 * Convert match pattern to a form that matches on file with `.ts` or `.spec.ts` extension.
 */
export function normalizePattern(
  pattern: string,
  suffix: '.ts' | '.spec.ts',
): string {
  return pattern.endsWith('.spec.ts')
    ? pattern.replace(/\.spec\.ts$/, suffix)
    : `${pattern}/**/*${suffix}`;
}