How to run rcf tests in a polylith project?

[ieugen]

I would like to run rcf tests (from my src/ directories) of polylith bricks.

I run tests with clojure -Srepro -M:poly test .
Right now tests are not run, probably because the (hyperfiddle.rcf/enable!) is not run from development/src/user.clj

https://polylith.gitbook.io/poly/workflow/testing

I will probably create+link this to the polylith project so we can figure out and document this feature.

[ieugen]

So, after some discussions and investigations, I found out the following: https://clojurians.slack.com/archives/C013B7MQHJQ/p1661457088307879 .

We can use test setup and tear-down to call rcf/enable! https://polylith.gitbook.io/poly/workflow/testing#test-setup-and-teardown .

(ns foo.test-setup
  (:require [hyperfiddle.rcf]))

(defn setup
  "Enable rcf tests https://github.com/hyperfiddle/rcf#usage"
  [project-name]
  (println "Setup hyperfiddle.rcf in project" project-name)
  (hyperfiddle.rcf/enable!))

in workspace.edn

 :projects {
            "app" {:alias "app"
                   :test {:setup-fn foo.test-setup/setup}}

Unfortunately, this does not work for tests under src/ .
It does work for tests under test/ .

Trying to figure out why.

[ieugen]

So in polylith, test runner (polylith-kaocha) only considers files that end with _test . and only under test/ .
I added a test file on src/ and another file without test on test/ .
Only files ending in _test under test/ work.
I wonder if this is something I can change with kaocha config.

[ieugen]

Polylith projects can run RCF tests normally, but they require passing the JVM option -Dhyperfiddle.rcf.generate-tests=true to the poly tool.

In normal projects, this means adding :jvm-opts to ./deps.edn like so:

:aliases { 
  :poly {:main-opts ["-m" "polylith.clj.core.poly-cli.core"]
         ;; REDACTED
         :jvm-opts ["-Dhyperfiddle.rcf.generate-tests=true"]
         :extra-deps {polylith/clj-poly REDACTED
                             polylith-kaocha/test-runner REDACTED }}

[ieugen]

See https://github.com/ieugen/poly-rcf as well.
It works with some caveats.

For src/ tests we need to add src/ to :test :extra-paths

[licht1stein]

Thanks @ieugen your solution works on my project!