Microservice architecture, a popular alternative to traditional Service-Oriented Architecture (SOA), offers numerous advantages such as increased scalability, flexibility, and responsiveness for enterprise-level applications. Despite its benefits, it poses distinct testing challenges due to its decentralized and complex nature, requiring specialized strategies for effective integration testing, debugging, and coordination among independent teams. Challenges include managing decoupled databases, redesigning existing systems, addressing performance tracing, and ensuring effective communication and prioritization among teams. Overcoming these obstacles involves establishing clear API endpoints, employing autonomous and technically skilled staff, adopting standardized development practices, and implementing robust security and monitoring systems. While the architecture can significantly enhance business scalability and product quality, it demands careful consideration of its pros and cons to ensure successful deployment and maintenance.