Add before and after options

[deadghost]

I wanted global fixtures that will setup before testing and teardown after testing. I generalized it as -b[efore] and -a[fter]. They take Symbol indicating the fully qualified name of a specific function to run before/after tests. I'm open to option naming and code review. I have (after args) in two places because of (System/exit) and it feels kind of gross.

[puredanger]

I know this is super old, but curious what you needed to do in before/after...

[deadghost]

Yeah it's been a long time so I don't remember all the details. I believe it was to set up a test db only once for tests across multiple namespaces. The tests themselves did speculative transactions for testing. Then after all the tests finished, the db would be torn down.

use-fixtures can have setup/teardown granularity on a per function or per namespace basis with :each and :once but not for the entire test run across all namespaces. Setup/teardown can be resource intensive and I'd want to run them as few times as possible.

[darkleaf]

It is not required to modify test-runner for this.
You could write own wrapper function:

;; src/my/app/wrapper.clj
(ns my.app.wrapper)

(defn wrap [{:keys [f] :as args}]
  (let [f (requiring-resolve f)]
    (prn "~~~before~~~")
    (f args)))

;; deps.edn
{,,,
  :test  {:extra-paths ["test"]
          :extra-deps  {io.github.cognitect-labs/test-runner
                        {:git/tag "v0.5.1" :git/sha "dfb30dd"}}
          :exec-fn     my.app.wrapper/wrap ;; use wrapper instead of `cognitect.test-runner.api/test`
          :exec-args   {:f cognitect.test-runner.api/test}}}