Web Audio API Test Utilities

web-audio-test-api is a JavaScript library designed for testing applications that use the Web Audio API, primarily in CI environments. It provides a mock implementation of the Web Audio API interfaces, which, when imported, replaces the native browser or Node.js-emulated Web Audio API globally. Key features include stricter type checking for audio parameters compared to browser implementations, the ability to serialize an audio graph to a JSON object for assertion and debugging, and tracking of OscillatorNode/BufferSourceNode states. The current stable version is 0.5.2. However, the package appears to be unmaintained, with the last publish occurring over eight years ago, suggesting a very slow or effectively abandoned release cadence. Its primary differentiator is its focus on testability and debuggability through explicit state tracking and serialization, rather than mimicking real-time audio processing.