Chengdu Yecheng Inspection Department is responsible for product inspection, including function, performance and compatibility, to ensure the quality and stability of products. The testing department works closely with the development team, project manager and product manager, compiling test plans and test cases, executing tests and reporting problems, assisting in repairing defects, conducting performance and compatibility tests, participating in version upgrade and release, continuously improving test procedures and improving test efficiency and quality. The testing department ensures that the products are reliable before going on the market and meet the needs of users.