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Diffstat (limited to 'test/lisp/emacs-lisp/cl-generic-tests.el')
| -rw-r--r-- | test/lisp/emacs-lisp/cl-generic-tests.el | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/cl-generic-tests.el b/test/lisp/emacs-lisp/cl-generic-tests.el new file mode 100644 index 00000000000..2703b44dee5 --- /dev/null +++ b/test/lisp/emacs-lisp/cl-generic-tests.el @@ -0,0 +1,223 @@ +;;; cl-generic-tests.el --- Tests for cl-generic.el functionality -*- lexical-binding: t; -*- + +;; Copyright (C) 2015 Free Software Foundation, Inc. + +;; Author: Stefan Monnier <monnier@iro.umontreal.ca> + +;; 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: + +(eval-when-compile (require 'ert)) ;Don't indirectly require cl-lib at run-time. +(require 'cl-generic) + +(fmakunbound 'cl--generic-1) +(cl-defgeneric cl--generic-1 (x y)) +(cl-defgeneric (setf cl--generic-1) (v y z) "My generic doc.") + +(ert-deftest cl-generic-test-00 () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y)) + (cl-defmethod cl--generic-1 ((x t) y) (cons x y)) + (should (equal (cl--generic-1 'a 'b) '(a . b)))) + +(ert-deftest cl-generic-test-01-eql () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y)) + (cl-defmethod cl--generic-1 ((x t) y) (cons x y)) + (cl-defmethod cl--generic-1 ((_x (eql 4)) _y) + (cons "quatre" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x (eql 5)) _y) + (cons "cinq" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x (eql 6)) y) + (cons "six" (cl-call-next-method 'a y))) + (should (equal (cl--generic-1 'a nil) '(a))) + (should (equal (cl--generic-1 4 nil) '("quatre" 4))) + (should (equal (cl--generic-1 5 nil) '("cinq" 5))) + (should (equal (cl--generic-1 6 nil) '("six" a)))) + +(cl-defstruct cl-generic-struct-parent a b) +(cl-defstruct (cl-generic-struct-child1 (:include cl-generic-struct-parent)) c) +(cl-defstruct (cl-generic-struct-child11 (:include cl-generic-struct-child1)) d) +(cl-defstruct (cl-generic-struct-child2 (:include cl-generic-struct-parent)) e) + +(ert-deftest cl-generic-test-02-struct () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y) "My doc.") + (cl-defmethod cl--generic-1 ((x t) y) "Doc 1." (cons x y)) + (cl-defmethod cl--generic-1 ((_x cl-generic-struct-parent) y) + "Doc 2." (cons "parent" (cl-call-next-method 'a y))) + (cl-defmethod cl--generic-1 ((_x cl-generic-struct-child1) _y) + (cons "child1" (cl-call-next-method))) + (cl-defmethod cl--generic-1 :around ((_x t) _y) + (cons "around" (cl-call-next-method))) + (cl-defmethod cl--generic-1 :around ((_x cl-generic-struct-child11) _y) + (cons "child11" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x cl-generic-struct-child2) _y) + (cons "child2" (cl-call-next-method))) + (should (equal (cl--generic-1 (make-cl-generic-struct-child1) nil) + '("around" "child1" "parent" a))) + (should (equal (cl--generic-1 (make-cl-generic-struct-child2) nil) + '("around""child2" "parent" a))) + (should (equal (cl--generic-1 (make-cl-generic-struct-child11) nil) + '("child11" "around""child1" "parent" a)))) + +;; I don't know how to put this inside an `ert-test'. This tests that `setf' +;; can be used directly inside the body of the setf method. +(cl-defmethod (setf cl--generic-2) (v (y integer) z) + (setf (cl--generic-2 (nth y z) z) v)) + +(ert-deftest cl-generic-test-03-setf () + (cl-defmethod (setf cl--generic-1) (v (y t) z) (list v y z)) + (cl-defmethod (setf cl--generic-1) (v (_y (eql 4)) z) (list v "four" z)) + (should (equal (setf (cl--generic-1 'a 'b) 'v) '(v a b))) + (should (equal (setf (cl--generic-1 4 'b) 'v) '(v "four" b))) + (let ((x ())) + (should (equal (setf (cl--generic-1 (progn (push 1 x) 'a) + (progn (push 2 x) 'b)) + (progn (push 3 x) 'v)) + '(v a b))) + (should (equal x '(3 2 1))))) + +(ert-deftest cl-generic-test-04-overlapping-tagcodes () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y) "My doc.") + (cl-defmethod cl--generic-1 ((y t) z) (list y z)) + (cl-defmethod cl--generic-1 ((_y (eql 4)) _z) + (cons "four" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_y integer) _z) + (cons "integer" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_y number) _z) + (cons "number" (cl-call-next-method))) + (should (equal (cl--generic-1 'a 'b) '(a b))) + (should (equal (cl--generic-1 1 'b) '("integer" "number" 1 b))) + (should (equal (cl--generic-1 4 'b) '("four" "integer" "number" 4 b)))) + +(ert-deftest cl-generic-test-05-alias () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y) "My doc.") + (defalias 'cl--generic-2 #'cl--generic-1) + (cl-defmethod cl--generic-1 ((y t) z) (list y z)) + (cl-defmethod cl--generic-2 ((_y (eql 4)) _z) + (cons "four" (cl-call-next-method))) + (should (equal (cl--generic-1 4 'b) '("four" 4 b)))) + +(ert-deftest cl-generic-test-06-multiple-dispatch () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y) "My doc.") + (cl-defmethod cl--generic-1 (x y) (list x y)) + (cl-defmethod cl--generic-1 (_x (_y integer)) + (cons "y-int" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x integer) _y) + (cons "x-int" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x integer) (_y integer)) + (cons "x&y-int" (cl-call-next-method))) + (should (equal (cl--generic-1 1 2) '("x&y-int" "x-int" "y-int" 1 2)))) + +(ert-deftest cl-generic-test-07-apo () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y) + (:documentation "My doc.") (:argument-precedence-order y x)) + (cl-defmethod cl--generic-1 (x y) (list x y)) + (cl-defmethod cl--generic-1 (_x (_y integer)) + (cons "y-int" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x integer) _y) + (cons "x-int" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x integer) (_y integer)) + (cons "x&y-int" (cl-call-next-method))) + (should (equal (cl--generic-1 1 2) '("x&y-int" "y-int" "x-int" 1 2)))) + +(ert-deftest cl-generic-test-08-after/before () + (let ((log ())) + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y)) + (cl-defmethod cl--generic-1 ((_x t) y) (cons y log)) + (cl-defmethod cl--generic-1 ((_x (eql 4)) _y) + (cons "quatre" (cl-call-next-method))) + (cl-defmethod cl--generic-1 :after (x _y) + (push (list :after x) log)) + (cl-defmethod cl--generic-1 :before (x _y) + (push (list :before x) log)) + (should (equal (cl--generic-1 4 6) '("quatre" 6 (:before 4)))) + (should (equal log '((:after 4) (:before 4)))))) + +(defun cl--generic-test-advice (&rest args) (cons "advice" (apply args))) + +(ert-deftest cl-generic-test-09-advice () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y) "My doc.") + (cl-defmethod cl--generic-1 (x y) (list x y)) + (advice-add 'cl--generic-1 :around #'cl--generic-test-advice) + (should (equal (cl--generic-1 4 5) '("advice" 4 5))) + (cl-defmethod cl--generic-1 ((_x integer) _y) + (cons "integer" (cl-call-next-method))) + (should (equal (cl--generic-1 4 5) '("advice" "integer" 4 5))) + (advice-remove 'cl--generic-1 #'cl--generic-test-advice) + (should (equal (cl--generic-1 4 5) '("integer" 4 5)))) + +(ert-deftest cl-generic-test-10-weird () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x &rest r) "My doc.") + (cl-defmethod cl--generic-1 (x &rest r) (cons x r)) + ;; This kind of definition is not valid according to CLHS, but it does show + ;; up in EIEIO's tests for no-next-method, so we should either + ;; detect it and signal an error or do something meaningful with it. + (cl-defmethod cl--generic-1 (x (y integer) &rest r) + `("integer" ,y ,x ,@r)) + (should (equal (cl--generic-1 'a 'b) '(a b))) + (should (equal (cl--generic-1 1 2) '("integer" 2 1)))) + +(ert-deftest cl-generic-test-11-next-method-p () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y)) + (cl-defmethod cl--generic-1 ((x t) y) + (list x y (cl-next-method-p))) + (cl-defmethod cl--generic-1 ((_x (eql 4)) _y) + (cl-list* "quatre" (cl-next-method-p) (cl-call-next-method))) + (should (equal (cl--generic-1 4 5) '("quatre" t 4 5 nil)))) + +(ert-deftest cl-generic-test-12-context () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 ()) + (cl-defmethod cl--generic-1 (&context (overwrite-mode (eql t))) + (list 'is-t (cl-call-next-method))) + (cl-defmethod cl--generic-1 (&context (overwrite-mode (eql nil))) + (list 'is-nil (cl-call-next-method))) + (cl-defmethod cl--generic-1 () 'any) + (should (equal (list (let ((overwrite-mode t)) (cl--generic-1)) + (let ((overwrite-mode nil)) (cl--generic-1)) + (let ((overwrite-mode 1)) (cl--generic-1))) + '((is-t any) (is-nil any) any)))) + +(ert-deftest cl-generic-test-13-head () + (fmakunbound 'cl--generic-1) + (cl-defgeneric cl--generic-1 (x y)) + (cl-defmethod cl--generic-1 ((x t) y) (cons x y)) + (cl-defmethod cl--generic-1 ((_x (head 4)) _y) + (cons "quatre" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x (head 5)) _y) + (cons "cinq" (cl-call-next-method))) + (cl-defmethod cl--generic-1 ((_x (head 6)) y) + (cons "six" (cl-call-next-method 'a y))) + (should (equal (cl--generic-1 'a nil) '(a))) + (should (equal (cl--generic-1 '(4) nil) '("quatre" (4)))) + (should (equal (cl--generic-1 '(5) nil) '("cinq" (5)))) + (should (equal (cl--generic-1 '(6) nil) '("six" a)))) + +(provide 'cl-generic-tests) +;;; cl-generic-tests.el ends here |