1d32461b3d
I couldn't make it work with the Babel loader. There is a possible solution using ts-node as a loader. I didn't want to install another package, so I chose a different workaround. mocha-env.mjs is processed as a module thanks to the suffix, and it sets chai. expect globally, and then I updated tests to use the global expect. Please see https://github.com/chaijs/chai/issues/1568 [MAILPOET-6008]