;;; completion-tests.el --- Tests for completion.el -*- lexical-binding: t -*-
;; Copyright (C) 2020-2022 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 <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'ert)
(require 'completion)
(ert-deftest completion-test-cmpl-string-case-type ()
(should (eq (cmpl-string-case-type "123ABCDEF456") :up))
(should (eq (cmpl-string-case-type "123abcdef456") :down))
(should (eq (cmpl-string-case-type "123aBcDeF456") :mixed))
(should (eq (cmpl-string-case-type "123456") :neither))
(should (eq (cmpl-string-case-type "Abcde123") :capitalized)))
(ert-deftest completion-test-cmpl-merge-string-cases ()
(should (equal (cmpl-merge-string-cases "AbCdEf456" "abc") "AbCdEf456"))
(should (equal (cmpl-merge-string-cases "abcdef456" "ABC") "ABCDEF456"))
(should (equal (cmpl-merge-string-cases "ABCDEF456" "Abc") "Abcdef456"))
(should (equal (cmpl-merge-string-cases "ABCDEF456" "abc") "abcdef456")))
(ert-deftest completion-test-add-find-delete-tail ()
(unwind-protect
(progn
;; - Add and Find -
(should (equal (add-completion-to-head "banana") '("banana" 0 nil 0)))
(should (equal (find-exact-completion "banana") '("banana" 0 nil 0)))
(should (equal (find-exact-completion "bana") nil))
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banana" 0 nil 0))))
(should (equal (cdr (find-cmpl-prefix-entry "ban")) '(("banana" 0 nil 0))))
(should (equal (add-completion-to-head "banish") '("banish" 0 nil 0)))
(should (equal (find-exact-completion "banish") '("banish" 0 nil 0)))
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banish" 0 nil 0) ("banana" 0 nil 0))))
(should (equal (cdr (find-cmpl-prefix-entry "ban")) '(("banana" 0 nil 0))))
(should (equal (add-completion-to-head "banana") '("banana" 0 nil 0)))
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banana" 0 nil 0) ("banish" 0 nil 0))))
(should (equal (cdr (find-cmpl-prefix-entry "ban")) '(("banish" 0 nil 0))))
;; - Deleting -
(should (equal (add-completion-to-head "banner") '("banner" 0 nil 0)))
(delete-completion "banner")
(should-not (find-exact-completion "banner"))
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banana" 0 nil 0) ("banish" 0 nil 0))))
(should (equal (cdr (find-cmpl-prefix-entry "ban")) '(("banish" 0 nil 0))))
(should (equal (add-completion-to-head "banner") '("banner" 0 nil 0)))
(delete-completion "banana")
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banner" 0 nil 0) ("banish" 0 nil 0))))
(should (equal (cdr (find-cmpl-prefix-entry "ban")) '(("banish" 0 nil 0))))
(delete-completion "banner")
(delete-completion "banish")
(should-not (find-cmpl-prefix-entry "ban"))
(should-error (delete-completion "banner"))
;; - Tail -
(should (equal (add-completion-to-tail-if-new "banana") '("banana" 0 nil 0)))
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banana" 0 nil 0))))
(should (equal (cdr (find-cmpl-prefix-entry "ban")) '(("banana" 0 nil 0))))
(add-completion-to-tail-if-new "banish") '("banish" 0 nil 0)
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banana" 0 nil 0) ("banish" 0 nil 0))))
(should (equal (cdr (find-cmpl-prefix-entry "ban")) '(("banish" 0 nil 0)))))
(ignore-errors (kill-completion "banana"))
(ignore-errors (kill-completion "banner"))
(ignore-errors (kill-completion "banish"))))
(ert-deftest completion-test-add-find-accept-delete ()
(unwind-protect
(progn
;; - Add and Find -
(add-completion "banana" 5 10)
(should (equal (find-exact-completion "banana") '("banana" 5 10 0)))
(add-completion "banana" 6)
(should (equal (find-exact-completion "banana") '("banana" 6 10 0)))
(add-completion "banish")
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banish" 0 nil 0) ("banana" 6 10 0))))
;; - Accepting -
(setq completion-to-accept "banana")
(accept-completion)
(should (equal (find-exact-completion "banana") '("banana" 7 10 0)))
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banana" 7 10 0) ("banish" 0 nil 0))))
(setq completion-to-accept "banish")
(add-completion "banner")
(should (equal (car (find-cmpl-prefix-entry "ban"))
'(("banner" 0 nil 0) ("banish" 1 nil 0) ("banana" 7 10 0))))
;; - Deleting -
(kill-completion "banish")
(should (equal (car (find-cmpl-prefix-entry "ban")) '(("banner" 0 nil 0) ("banana" 7 10 0)))))
(ignore-errors (kill-completion "banish"))
(ignore-errors (kill-completion "banana"))
(ignore-errors (kill-completion "banner"))))
(ert-deftest completion-test-search ()
(unwind-protect
(progn
;; - Add and Find -
(add-completion "banana")
(completion-search-reset "ban")
(should (equal (car (completion-search-next 0)) "banana"))
;; - Discrimination -
(add-completion "cumberland")
(add-completion "cumberbund")
;; cumbering
(completion-search-reset "cumb")
(should (equal (car (completion-search-peek t)) "cumberbund"))
(should (equal (car (completion-search-next 0)) "cumberbund"))
(should (equal (car (completion-search-peek t)) "cumberland"))
(should (equal (car (completion-search-next 1)) "cumberland"))
(should-not (completion-search-peek nil))
;; FIXME
;; (should (equal (completion-search-next 2) "cumbering")) ; {cdabbrev}
;;(completion-search-next 3) --> nil or "cumming" {depends on context}
(should (equal (car (completion-search-next 1)) "cumberland"))
;; FIXME
;; (should (equal (completion-search-peek t) "cumbering")) ; {cdabbrev}
;; - Accepting -
(should (equal (car (completion-search-next 1)) "cumberland"))
(setq completion-to-accept "cumberland")
(completion-search-reset "foo")
(completion-search-reset "cum")
(should (equal (car (completion-search-next 0)) "cumberland"))
;; - Deleting -
(kill-completion "cumberland")
(add-completion "cummings")
(completion-search-reset "cum")
(should (equal (car (completion-search-next 0)) "cummings"))
(should (equal (car (completion-search-next 1)) "cumberbund"))
;; - Ignoring Capitalization -
(completion-search-reset "CuMb")
(should (equal (car (completion-search-next 0)) "cumberbund")))
(ignore-errors (kill-completion "banana"))
(ignore-errors (kill-completion "cumberland"))
(ignore-errors (kill-completion "cumberbund"))
(ignore-errors (kill-completion "cummings"))))
(ert-deftest completion-test-lisp-def-regexp ()
(should (= (and (string-match *lisp-def-regexp* "\n(defun foo") (match-end 0)) 8))
(should (= (and (string-match *lisp-def-regexp* "\n(si:def foo") (match-end 0)) 9))
(should (= (and (string-match *lisp-def-regexp* "\n(def-bar foo")(match-end 0)) 10))
(should (= (and (string-match *lisp-def-regexp* "\n(defun (foo") (match-end 0)) 9)))
(provide 'completion-tests)
;;; completion-tests.el ends here