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;;; -*- lexical-binding: t -*-
(require 'buttercup)
(require 'with-simulated-input)
(defun has-advice (symbol advice)
(let ((advice-fun-to-find
;; In Emacs 24, `indirect-function' throws an error instead
;; of returning nil for void functions. We want it to return nil.
(ignore-errors (indirect-function advice)))
(found nil))
(when advice-fun-to-find
(advice-mapc
(lambda (ad-fun ad-props)
(let ((ad-fun-def (ignore-errors (indirect-function ad-fun))))
(when ad-fun-def
(setq found
(or found
(equal ad-fun-def advice-fun-to-find))))))
symbol))
found))
(describe "The `with-simulated-input' library"
;; Run each test with the library unloaded. Obviously this is not
;; ideal since we are testing the unloading functionality, but
;; there's not much else we can do. We reload the library after each
;; test in order to restore the prior state.
(before-each
(when (featurep 'with-simulated-input)
(unload-feature 'with-simulated-input t)))
(after-each
(require 'with-simulated-input))
(it "should be able to load"
(expect (require 'with-simulated-input)
:not :to-throw))
(it "should apply the idle time advice when loading"
(require 'with-simulated-input)
(expect (has-advice #'current-idle-time 'current-idle-time@simulate-idle-time)
:to-be-truthy)
(spy-on 'current-idle-time@simulate-idle-time :and-call-through)
(current-idle-time)
(expect 'current-idle-time@simulate-idle-time
:to-have-been-called))
(it "should be able to unload"
;; Load and unload 3 times, just to make sure there aren't errors
;; on subsequent reloadings.
(expect (require 'with-simulated-input)
:not :to-throw)
(expect (featurep 'with-simulated-input))
(expect (unload-feature 'with-simulated-input t)
:not :to-throw)
(expect (not (featurep 'with-simulated-input)))
(expect (require 'with-simulated-input)
:not :to-throw)
(expect (featurep 'with-simulated-input))
(expect (unload-feature 'with-simulated-input t)
:not :to-throw)
(expect (not (featurep 'with-simulated-input)))
(expect (require 'with-simulated-input)
:not :to-throw)
(expect (featurep 'with-simulated-input))
(expect (unload-feature 'with-simulated-input t)
:not :to-throw)
(expect (not (featurep 'with-simulated-input))))
(it "should remove the idle time advice when unloading"
(expect (require 'with-simulated-input)
:not :to-throw)
(expect (has-advice #'current-idle-time 'current-idle-time@simulate-idle-time)
:to-be-truthy)
(expect (unload-feature 'with-simulated-input t)
:not :to-throw)
(expect (has-advice #'current-idle-time 'current-idle-time@simulate-idle-time)
:not :to-be-truthy)))
;;; test-unload.el ends here
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