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name: test/lisp/minibuffer-tests.el 	 # note: path name is non-authoritative(*)

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;;; minibuffer-tests.el --- Tests for completion functions  -*- lexical-binding: t; -*-

;; Copyright (C) 2013-2021 Free Software Foundation, Inc.

;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
;; Keywords:

;; 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 <https://www.gnu.org/licenses/>.

;;; Commentary:

;;

;;; Code:

(require 'ert)
(require 'ert-x)

(eval-when-compile (require 'cl-lib))

(ert-deftest completion-test1 ()
  (with-temp-buffer
    (cl-flet* ((test/completion-table (_string _pred action)
                                      (if (eq action 'lambda)
                                          nil
                                        "test: "))
               (test/completion-at-point ()
                                         (list (copy-marker (point-min))
                                               (copy-marker (point))
                                               #'test/completion-table)))
      (let ((completion-at-point-functions (list #'test/completion-at-point)))
        (insert "TEST")
        (completion-at-point)
        (should (equal (buffer-string)
                       "test: "))))))

(ert-deftest completion-table-with-predicate-test ()
  (let ((full-collection
         '("apple"                      ; Has A.
           "beet"                       ; Has B.
           "banana"                     ; Has A & B.
           "cherry"                     ; Has neither.
           ))
        (no-A (lambda (x) (not (string-match-p "a" x))))
        (no-B (lambda (x) (not (string-match-p "b" x)))))
    (should
     (member "cherry"
             (completion-table-with-predicate
              full-collection no-A t "" no-B t)))
    (should-not
     (member "banana"
             (completion-table-with-predicate
              full-collection no-A t "" no-B t)))
    ;; "apple" should still match when strict is nil.
    (should (eq t (try-completion
                   "apple"
                   (apply-partially
                    'completion-table-with-predicate
                    full-collection no-A nil)
                   no-B)))
    ;; "apple" should still match when strict is nil and pred2 is nil
    ;; (Bug#27841).
    (should (eq t (try-completion
                   "apple"
                   (apply-partially
                    'completion-table-with-predicate
                    full-collection no-A nil))))))

(ert-deftest completion-table-subvert-test ()
  (let* ((origtable '("A-hello" "A-there"))
         (subvtable (completion-table-subvert origtable "B" "A")))
    (should (equal (try-completion "B-hel" subvtable)
                   "B-hello"))
    (should (equal (all-completions "B-hel" subvtable) '("-hello")))
    (should (test-completion "B-hello" subvtable))
    (should (equal (completion-boundaries "B-hel" subvtable
                                          nil "suffix")
                   '(1 . 6)))))

(ert-deftest completion-table-test-quoting ()
  (let ((process-environment
         `("CTTQ1=ed" "CTTQ2=et/" ,@process-environment))
        (default-directory (ert-resource-directory)))
    (pcase-dolist (`(,input ,output)
                   '(
                     ;; Test that $ in files is properly $$ quoted.
                     ("data/m-cttq" "data/minibuffer-test-cttq$$tion")
                     ;; Test that $$ in input is properly unquoted.
                     ("data/m-cttq$$t" "data/minibuffer-test-cttq$$tion")
                     ;; Test that env-vars are preserved.
                     ("lisp/c${CTTQ1}et/se-u" "lisp/c${CTTQ1}et/semantic-utest")
                     ("lisp/ced${CTTQ2}se-u" "lisp/ced${CTTQ2}semantic-utest")
                     ;; Test that env-vars don't prevent partial-completion.
                     ;; FIXME: Ideally we'd like to keep the ${CTTQ}!
                     ("lis/c${CTTQ1}/se-u" "lisp/cedet/semantic-utest")
                     ))
      (should (equal (completion-try-completion input
                                                #'completion--file-name-table
                                                nil (length input))
                     (cons output (length output)))))))

(ert-deftest completion--insert-strings-faces ()
  (with-temp-buffer
    (completion--insert-strings
     '(("completion1" "suffix1")))
    (should (equal (get-text-property 12 'face) '(completions-annotations))))
  (with-temp-buffer
    (completion--insert-strings
     '(("completion1" #("suffix1" 0 7 (face shadow)))))
    (should (equal (get-text-property 12 'face) 'shadow)))
  (with-temp-buffer
    (completion--insert-strings
     '(("completion1" "prefix1" "suffix1")))
    (should (equal (get-text-property 19 'face) nil)))
  (with-temp-buffer
    (completion--insert-strings
     '(("completion1" "prefix1" #("suffix1" 0 7 (face shadow)))))
    (should (equal (get-text-property 19 'face) 'shadow))))

(ert-deftest completion-pcm--optimize-pattern ()
  (should (equal (completion-pcm--optimize-pattern '("buf" point "f"))
                 '("buf" point "f")))
  (should (equal (completion-pcm--optimize-pattern '(any "" any))
                 '(any))))

(defun test-completion-all-sorted-completions (base def history-var history-list)
  (with-temp-buffer
    (insert base)
    (cl-letf (((symbol-function #'minibufferp) (lambda (&rest _) t)))
      (let ((completion-styles '(basic))
            (completion-category-defaults nil)
            (completion-category-overrides nil)
            (minibuffer-history-variable history-var)
            (minibuffer-history history-list)
            (minibuffer-default def)
            (minibuffer-completion-table
             (lambda (str pred action)
               (pcase action
                 (`(boundaries . ,_) `(boundaries ,(length base) . 0))
                 (_ (complete-with-action action
                                          '(epsilon alpha gamma beta delta)
                                          (substring str (length base)) pred))))))
        (completion-all-sorted-completions)))))

(ert-deftest completion-all-sorted-completions ()
  ;; No base, disabled history, no default
  (should (equal (test-completion-all-sorted-completions
                  "" nil t nil)
                 `("beta" "alpha" "delta" "gamma" "epsilon" . 0)))
  ;; No base, disabled history, default string
  (should (equal (test-completion-all-sorted-completions
                  "" "gamma" t nil)
                 `("gamma" "beta" "alpha" "delta" "epsilon" . 0)))
  ;; No base, empty history, default string
  (should (equal (test-completion-all-sorted-completions
                  "" "gamma" 'minibuffer-history nil)
                 `("gamma" "beta" "alpha" "delta" "epsilon" . 0)))
  ;; No base, empty history, default list
  (should (equal (test-completion-all-sorted-completions
                  "" '("gamma" "zeta") 'minibuffer-history nil)
                 `("gamma" "beta" "alpha" "delta" "epsilon" . 0)))
  ;; No base, history, default string
  (should (equal (test-completion-all-sorted-completions
                  "" "gamma" 'minibuffer-history '("other" "epsilon" "delta"))
                 `("gamma" "epsilon" "delta" "beta" "alpha"  . 0)))
  ;; Base, history, default string
  (should (equal (test-completion-all-sorted-completions
                  "base/" "gamma" 'minibuffer-history
                  '("some/alpha" "base/epsilon" "base/delta"))
                 `("gamma" "epsilon" "delta" "beta" "alpha"  . 5))))

(provide 'minibuffer-tests)
;;; minibuffer-tests.el ends here

debug log:

solving 03520c2b74 ...
found 03520c2b74 in https://yhetil.org/emacs-devel/9beb1aa3-d934-c3ae-7c26-26256e34ae43@daniel-mendler.de/
found 027711c21e in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 027711c21e6038c410638e62adef252ead2198ea	test/lisp/minibuffer-tests.el

applying [1/1] https://yhetil.org/emacs-devel/9beb1aa3-d934-c3ae-7c26-26256e34ae43@daniel-mendler.de/
diff --git a/test/lisp/minibuffer-tests.el b/test/lisp/minibuffer-tests.el
index 027711c21e..03520c2b74 100644

Checking patch test/lisp/minibuffer-tests.el...
Applied patch test/lisp/minibuffer-tests.el cleanly.

index at:
100644 03520c2b74e1967e178aa65ba170882134f3ac9d	test/lisp/minibuffer-tests.el

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