This package provides functions to support ert, the Emacs Regression Test framework. It includes:

* a set of predicates for comparing strings, buffers and file contents; * explainer functions for all predicates giving useful output; * macros for creating many temporary buffers at once, and for restoring the buffer list; * methods for testing indentation, by comparison or "round-tripping"; * methods for testing fontification;

Assess aims to be a stateless as possible, leaving Emacs unchanged whether the tests succeed or fail, with respect to buffers, open files and so on; this helps to keep tests independent from each other. Violations of this will be considered a bug.

Assess aims also to be as noiseless as possible, reducing and suppressing extraneous messages where possible, to leave a clean ert output in batch mode.