TSpec

What TSpec is

TSpec is a TypeScript-first testing framework designed for testing TypeScript applications. Its basic setup requires no configuration and includes native TypeScript support. The assertion package handles synchronous checks as well as promises that resolve or reject. Its mock tools provide mock functions, spies, and a way to replace object methods. Watch mode can rerun tests after files change and select affected tests. The command-line interface offers test selection, custom configuration, verbosity controls, silenced output, and timeouts. An optional TypeScript configuration file can set test patterns, ignored paths, timeouts, and output options. The project documents process exit codes for CI/CD workflows. TSpec runs on Node.js, with Node.js 20 or later as the listed requirement, and is identified as MIT licensed. It is free. The project is in active development, and package publication is described as coming soon; current use requires building from source. The documented installation route uses npm, and the framework can be run from a project or command line.