Developed and maintained automation test cases based on Python + Pytest/unittest framework, covering core functions and regression scenarios, and outputting automation test reports. Designed and maintained functional test cases for the system under test on TestLink, participated in test case reviews, and ensured test coverage of requirements. Independently developed an automation testing tool for sweeping robots using Python + OpenCV, which can automatically identify and calculate the sweep path and coverage, significantly improving testing efficiency and accuracy. Analyzed test results and located defects, tracked defects using Bugzilla, and promoted the closure of issues. Compiled test reports, daily reports, and weekly reports, and synchronized project progress and testing risks via email. Successfully intercepted 2 high-priority bugs that severely affected the user's core experience, and accurately reproduced and located the conditions for triggering them, providing effective basis for R&D to fix them.