Contributed to the bytecodealliance/wasmtime repository by developing targeted test coverage for WASI random byte generation, focusing on validating that generated byte buffers are not composed entirely of zeros. This work enhanced the reliability of randomness-dependent features by integrating a new test into Wasmtime’s automated CI suite, supporting secure defaults in the WASI path. Leveraged Rust and asynchronous programming techniques to implement and verify the test, demonstrating a strong understanding of Rust-based test frameworks and secure-coding practices. The addition improved release readiness by reducing risk associated with random number generation, ensuring more robust and trustworthy behavior in production environments.