ert-font-lock

ERT Font Lock is an extension to the Emacs Lisp Regression Test
library (ERT) providing a convenient way to check syntax
highlighting provided by font-lock.

ert-font-lock entry points are functions
`ert-font-lock-test-string' and `ert-font-lock-test-file', and
convenience macros `ert-font-lock-deftest' and
`ert-font-lock-deftest-file'.

See unit tests in ert-font-lock-tests.el for usage examples.