This work describes the process of building a test automation tool to support some testing activities at a technology company. The presented solution aims to make more efficient the process of testing transactions involving payment in PoS (Point of Sale) terminals through the proposed tool, called ValiBits. To evaluate this solution, interviews were conducted with professionals in the quality area of the technology company. In general, the tool was well accepted by these professionals that participated in this initial assessment as a tool to support the company’s testing process.