figwheel idles when running tests from command line. (Built with webpack)

[LeifAndersen]

I made a minimal example demonstrating it here:

https://github.com/LeifAndersen/figwheel-idle-example

To reproduce (from within the folder) run:

npm ci
clojure -M:text

The code will compile, and webpack will finish. But once the browser launches figwheel just sits without ever running anything.

If :optimization :whitespace is removed, (and thus the dependency to stream-http) is no longer needed, then it seems to work just fine.

Given how easy it is for clojurescript code to break only when optimizations are enabled, it would be good to be able to run tests with them turned on.

[bhauman]

Unfortunately figwheel communication via the REPL connection currently only work with optimizations :none. REPL communication is what's needed to send messages back and forth between the CLI process and the browser process which is running the tests. This has been baked in because you can't really do reloading with in any other optimization mode.

Technically it should be possible to do this but it would require a bit of a rethink just to hand this case.

[LeifAndersen]

Sad, but makes sense. Would it be worth adding a note that :optimizations must be either not provided or set to :none on this page?: https://figwheel.org/docs/testing.html

[bhauman]

Added the note.