test/lisp/minibuffer-tests.el

   1 ;;; completion-tests.el --- Tests for completion functions  -*- lexical-binding: t; -*-
   2
   3 ;; Copyright (C) 2013-2018 Free Software Foundation, Inc.
   4
   5 ;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
   6 ;; Keywords:
   7
   8 ;; This program is free software; you can redistribute it and/or modify
   9 ;; it under the terms of the GNU General Public License as published by
  10 ;; the Free Software Foundation, either version 3 of the License, or
  11 ;; (at your option) any later version.
  12
  13 ;; This program is distributed in the hope that it will be useful,
  14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 ;; GNU General Public License for more details.
  17
  18 ;; You should have received a copy of the GNU General Public License
  19 ;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
  20
  21 ;;; Commentary:
  22
  23 ;;
  24
  25 ;;; Code:
  26
  27 (eval-when-compile (require 'cl-lib))
  28
  29 (ert-deftest completion-test1 ()
  30   (with-temp-buffer
  31     (cl-flet* ((test/completion-table (_string _pred action)
  32                                       (if (eq action 'lambda)
  33                                           nil
  34                                         "test: "))
  35                (test/completion-at-point ()
  36                                          (list (copy-marker (point-min))
  37                                                (copy-marker (point))
  38                                                #'test/completion-table)))
  39       (let ((completion-at-point-functions (list #'test/completion-at-point)))
  40         (insert "TEST")
  41         (completion-at-point)
  42         (should (equal (buffer-string)
  43                        "test: "))))))
  44
  45 (ert-deftest completion-table-with-predicate-test ()
  46   (let ((full-collection
  47          '("apple"                      ; Has A.
  48            "beet"                       ; Has B.
  49            "banana"                     ; Has A & B.
  50            "cherry"                     ; Has neither.
  51            ))
  52         (no-A (lambda (x) (not (string-match-p "a" x))))
  53         (no-B (lambda (x) (not (string-match-p "b" x)))))
  54     (should
  55      (member "cherry"
  56              (completion-table-with-predicate
  57               full-collection no-A t "" no-B t)))
  58     (should-not
  59      (member "banana"
  60              (completion-table-with-predicate
  61               full-collection no-A t "" no-B t)))
  62     ;; "apple" should still match when strict is nil.
  63     (should (eq t (try-completion
  64                    "apple"
  65                    (apply-partially
  66                     'completion-table-with-predicate
  67                     full-collection no-A nil)
  68                    no-B)))
  69     ;; "apple" should still match when strict is nil and pred2 is nil
  70     ;; (Bug#27841).
  71     (should (eq t (try-completion
  72                    "apple"
  73                    (apply-partially
  74                     'completion-table-with-predicate
  75                     full-collection no-A nil))))))
  76
  77 (provide 'completion-tests)
  78 ;;; completion-tests.el ends here