Srushti S. V. developed a comprehensive integration test suite for phone number authentication in the firebase/firebase-ios-sdk repository, focusing on both callback-based and async/await sign-in flows. Using Swift and leveraging Firebase Authentication, she ensured that the new tests provided end-to-end coverage for SMS-based sign-in, addressing both traditional and modern asynchronous patterns. Her work emphasized integration and unit testing, improving the reliability of authentication features and enhancing the CI feedback loop for critical authentication paths. By tying code changes directly to test coverage, Srushti’s contributions reduced regression risk and strengthened release readiness for iOS development within the Firebase ecosystem.