Performed functional and end-to-end testing of the OpenCart e-commerce web application. Designed and executed test scenarios and test cases covering user registration, login, product search, product details, shopping cart, checkout, order confirmation, order history, and logout. Developed automated test scripts using Python, Playwright, and Pytest. Implemented reliable element identification using Playwright locators and handled web elements, assertions, waits, and browser interactions. Executed automated test cases and analyzed test results to identify functional issues. Documented test scenarios, test cases, and defects based on expected and actual results. Followed software testing practices including STLC, functional testing, regression testing, and defect reporting.