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;;; advice-tests.el --- Test suite for the new advice thingy.
;; Copyright (C) 2012-2013 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(ert-deftest advice-tests-nadvice ()
"Test nadvice code."
(defun sm-test1 (x) (+ x 4))
(should (equal (sm-test1 6) 10))
(advice-add 'sm-test1 :around (lambda (f y) (* (funcall f y) 5)))
(should (equal (sm-test1 6) 50))
(defun sm-test1 (x) (+ x 14))
(should (equal (sm-test1 6) 100))
(should (equal (null (get 'sm-test1 'defalias-fset-function)) nil))
(advice-remove 'sm-test1 (lambda (f y) (* (funcall f y) 5)))
(should (equal (sm-test1 6) 20))
(should (equal (get 'sm-test1 'defalias-fset-function) nil))
(advice-add 'sm-test3 :around
(lambda (f &rest args) `(toto ,(apply f args)))
'((name . wrap-with-toto)))
(defmacro sm-test3 (x) `(call-test3 ,x))
(should (equal (macroexpand '(sm-test3 56)) '(toto (call-test3 56)))))
(ert-deftest advice-tests-advice ()
"Test advice code."
(defun sm-test2 (x) (+ x 4))
(should (equal (sm-test2 6) 10))
(defadvice sm-test2 (around sm-test activate)
ad-do-it (setq ad-return-value (* ad-return-value 5)))
(should (equal (sm-test2 6) 50))
(ad-deactivate 'sm-test2)
(should (equal (sm-test2 6) 10))
(ad-activate 'sm-test2)
(should (equal (sm-test2 6) 50))
(defun sm-test2 (x) (+ x 14))
(should (equal (sm-test2 6) 100))
(should (equal (null (get 'sm-test2 'defalias-fset-function)) nil))
(ad-remove-advice 'sm-test2 'around 'sm-test)
(should (equal (sm-test2 6) 100))
(ad-activate 'sm-test2)
(should (equal (sm-test2 6) 20))
(should (equal (null (get 'sm-test2 'defalias-fset-function)) t))
(defadvice sm-test4 (around wrap-with-toto activate)
ad-do-it (setq ad-return-value `(toto ,ad-return-value)))
(defmacro sm-test4 (x) `(call-test4 ,x))
(should (equal (macroexpand '(sm-test4 56)) '(toto (call-test4 56))))
(defmacro sm-test4 (x) `(call-testq ,x))
(should (equal (macroexpand '(sm-test4 56)) '(toto (call-testq 56))))
;; This used to signal an error (bug#12858).
(autoload 'sm-test6 "foo")
(defadvice sm-test6 (around test activate)
ad-do-it))
(ert-deftest advice-tests-combination ()
"Combining old style and new style advices."
(defun sm-test5 (x) (+ x 4))
(should (equal (sm-test5 6) 10))
(advice-add 'sm-test5 :around (lambda (f y) (* (funcall f y) 5)))
(should (equal (sm-test5 6) 50))
(defadvice sm-test5 (around test activate)
ad-do-it (setq ad-return-value (+ ad-return-value 0.1)))
(should (equal (sm-test5 5) 45.1))
(ad-deactivate 'sm-test5)
(should (equal (sm-test5 6) 50))
(ad-activate 'sm-test5)
(should (equal (sm-test5 6) 50.1))
(defun sm-test5 (x) (+ x 14))
(should (equal (sm-test5 6) 100.1))
(advice-remove 'sm-test5 (lambda (f y) (* (funcall f y) 5)))
(should (equal (sm-test5 6) 20.1)))
(ert-deftest advice-test-called-interactively-p ()
"Check interaction between advice and called-interactively-p."
(defun sm-test7 (&optional x) (interactive) (+ (or x 7) 4))
(advice-add 'sm-test7 :around
(lambda (f &rest args)
(list (cons 1 (called-interactively-p)) (apply f args))))
(should (equal (sm-test7) '((1 . nil) 11)))
(should (equal (call-interactively 'sm-test7) '((1 . t) 11)))
(let ((smi 7))
(advice-add 'sm-test7 :before
(lambda (&rest args)
(setq smi (called-interactively-p))))
(should (equal (list (sm-test7) smi)
'(((1 . nil) 11) nil)))
(should (equal (list (call-interactively 'sm-test7) smi)
'(((1 . t) 11) t))))
(advice-add 'sm-test7 :around
(lambda (f &rest args)
(cons (cons 2 (called-interactively-p)) (apply f args))))
(should (equal (call-interactively 'sm-test7) '((2 . t) (1 . t) 11))))
(ert-deftest advice-test-interactive ()
"Check handling of interactive spec."
(defun sm-test8 (a) (interactive "p") a)
(defadvice sm-test8 (before adv1 activate) nil)
(defadvice sm-test8 (before adv2 activate) (interactive "P") nil)
(should (equal (interactive-form 'sm-test8) '(interactive "P"))))
(ert-deftest advice-test-preactivate ()
(should (equal (null (get 'sm-test9 'defalias-fset-function)) t))
(defun sm-test9 (a) (interactive "p") a)
(should (equal (null (get 'sm-test9 'defalias-fset-function)) t))
(defadvice sm-test9 (before adv1 pre act protect compile) nil)
(should (equal (null (get 'sm-test9 'defalias-fset-function)) nil))
(defadvice sm-test9 (before adv2 pre act protect compile)
(interactive "P") nil)
(should (equal (interactive-form 'sm-test9) '(interactive "P"))))
;; Local Variables:
;; no-byte-compile: t
;; End:
;;; advice-tests.el ends here.
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