Microservice architecture, increasingly adopted by organizations embracing modern DevOps practices, presents unique testing challenges due to its structure of small, focused services working collectively to form an application. Unlike monolithic applications where changes in one component necessitate rebuilding the entire application, microservices allow for independent updates, requiring testers to adopt new strategies for testing individual services as well as the whole system. Testers must ensure code correctness, update dependencies, and manage multiple repositories, while also being knowledgeable about each service to effectively write test cases. Testing strategies should include scalability, functionality, end-to-end, and user interface testing, often leveraging automation tools like LoadUI Pro and SoapUI Pro. Despite the complexity and additional effort required, the advantages of microservices, such as agility and scalability, make these challenges worthwhile.