Slow tests initialization

[avishefi]

How can I run eask test ert without reloading package information each time?

I have:

(source "gnu")
(source "melpa")

As part of Eask, and running eask test ert "test/*-test.el" show "Loading package information" and waits 12-15 seconds every time, whereas running eask test ert-runner . doesn't wait at all.

I did eask install-deps --dev and all seems good except this delay each time.

When I remove the sources it is fast just like ert-runner.

[jcs090218]

Eask attempts to load the complete package metadata, including all dependencies, to avoid potential errors. Because there is no guaranteed way to determine whether a package has dependencies, Eask runs package-initialize on every execution (eask test ert). It might be possible to infer whether initialization is necessary by inspecting the package’s dependency list.

You can do something like this to get away from this:

(add-hook 'eask-before-test/ert-hook
          (lambda () (advice-add 'eask-pkg-init :override #'ignore)))

Eask does not enforce loading package metadata in the command eask test ert-runner, as this behavior is entirely determined by the ert-runner package itself. 🤔

[avishefi]

Thanks!