Watch A Directory And Run Mocha JS With ES Modules When Files Change
May - 2022
This is how I'm running Mochajs in watch mode with ES Modules:
mocha --watch --parallel
Adding --parallel
is based off this comment to a GitHub issue about --watch
not working by itself with ES Modules.
If you try to run mocha --watch
without --parallel
it produces errors like:
Error [ERR_REQUIRE_ESM]: require() of ES Module
/file/path/file.mjs not supported.
Instead change the require of /file/path/file.mjs
to a dynamic import() which is available in all
CommonJS modules.
(I think I've done the dynamic import stuff before in other projects, but haven't tried it with Mocha yet)