code.delx.au - gnu-emacs-elpa/blob - company-tests.el

   1 ;;; company-tests.el --- company-mode tests
   2
   3 ;; Copyright (C) 2011, 2013-2014  Free Software Foundation, Inc.
   4
   5 ;; Author: Nikolaj Schumacher
   6
   7 ;; This file is part of GNU Emacs.
   8
   9 ;; GNU Emacs is free software: you can redistribute it and/or modify
  10 ;; it under the terms of the GNU General Public License as published by
  11 ;; the Free Software Foundation, either version 3 of the License, or
  12 ;; (at your option) any later version.
  13
  14 ;; GNU Emacs is distributed in the hope that it will be useful,
  15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 ;; GNU General Public License for more details.
  18
  19 ;; You should have received a copy of the GNU General Public License
  20 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  21
  22
  23 ;;; Commentary:
  24 ;;
  25
  26 ;;; Code:
  27
  28 (eval-when-compile (require 'cl))
  29 (require 'ert)
  30 (require 'company)
  31 (require 'company-keywords)
  32 (require 'company-elisp)
  33 (require 'company-clang)
  34
  35 ;;; Core
  36
  37 (ert-deftest company-sorted-keywords ()
  38   "Test that keywords in `company-keywords-alist' are in alphabetical order."
  39   (dolist (pair company-keywords-alist)
  40     (when (consp (cdr pair))
  41       (let ((prev (cadr pair)))
  42         (dolist (next (cddr pair))
  43           (should (not (equal prev next)))
  44           (should (string< prev next))
  45           (setq prev next))))))
  46
  47 (ert-deftest company-good-prefix ()
  48   (let ((company-minimum-prefix-length 5)
  49         company-abort-manual-when-too-short
  50         company--manual-action            ;idle begin
  51         (company-selection-changed t))    ;has no effect
  52     (should (eq t (company--good-prefix-p "!@#$%")))
  53     (should (eq nil (company--good-prefix-p "abcd")))
  54     (should (eq nil (company--good-prefix-p 'stop)))
  55     (should (eq t (company--good-prefix-p '("foo" . 5))))
  56     (should (eq nil (company--good-prefix-p '("foo" . 4))))
  57     (should (eq t (company--good-prefix-p '("foo" . t))))))
  58
  59 (ert-deftest company--manual-prefix-set-and-unset ()
  60   (with-temp-buffer
  61     (insert "ab")
  62     (company-mode)
  63     (let (company-frontends
  64           (company-backends
  65            (list (lambda (command &optional arg)
  66                    (case command
  67                      (prefix (buffer-substring (point-min) (point)))
  68                      (candidates '("abc" "abd")))))))
  69       (company-manual-begin)
  70       (should (equal "ab" company--manual-prefix))
  71       (company-abort)
  72       (should (null company--manual-prefix)))))
  73
  74 (ert-deftest company-abort-manual-when-too-short ()
  75   (let ((company-minimum-prefix-length 5)
  76         (company-abort-manual-when-too-short t)
  77         (company-selection-changed t))    ;has not effect
  78     (let ((company--manual-action nil))   ;idle begin
  79       (should (eq t (company--good-prefix-p "!@#$%")))
  80       (should (eq t (company--good-prefix-p '("foo" . 5))))
  81       (should (eq t (company--good-prefix-p '("foo" . t)))))
  82     (let ((company--manual-action t)
  83           (company--manual-prefix "abc")) ;manual begin from this prefix
  84       (should (eq t (company--good-prefix-p "!@#$")))
  85       (should (eq nil (company--good-prefix-p "ab")))
  86       (should (eq nil (company--good-prefix-p 'stop)))
  87       (should (eq t (company--good-prefix-p '("foo" . 4))))
  88       (should (eq t (company--good-prefix-p "abcd")))
  89       (should (eq t (company--good-prefix-p "abc")))
  90       (should (eq t (company--good-prefix-p '("bar" . t)))))))
  91
  92 (ert-deftest company-multi-backend-with-lambdas ()
  93   (let ((company-backend
  94          (list (lambda (command &optional arg &rest ignore)
  95                  (case command
  96                    (prefix "z")
  97                    (candidates '("a" "b"))))
  98                (lambda (command &optional arg &rest ignore)
  99                  (case command
 100                    (prefix "z")
 101                    (candidates '("c" "d")))))))
 102     (should (equal (company-call-backend 'candidates "z") '("a" "b" "c" "d")))))
 103
 104 (ert-deftest company-multi-backend-remembers-candidate-backend ()
 105   (let ((company-backend
 106          (list (lambda (command &optional arg &rest ignore)
 107                  (case command
 108                    (ignore-case nil)
 109                    (annotation "1")
 110                    (candidates '("a" "c"))
 111                    (post-completion "13")))
 112                (lambda (command &optional arg &rest ignore)
 113                  (case command
 114                    (ignore-case t)
 115                    (annotation "2")
 116                    (candidates '("b" "d"))
 117                    (post-completion "42"))))))
 118     (let ((candidates (company-calculate-candidates nil)))
 119       (should (equal candidates '("a" "b" "c" "d")))
 120       (should (equal t (company-call-backend 'ignore-case)))
 121       (should (equal "1" (company-call-backend 'annotation (nth 0 candidates))))
 122       (should (equal "2" (company-call-backend 'annotation (nth 1 candidates))))
 123       (should (equal "13" (company-call-backend 'post-completion (nth 2 candidates))))
 124       (should (equal "42" (company-call-backend 'post-completion (nth 3 candidates)))))))
 125
 126 (ert-deftest company-multi-backend-handles-keyword-with ()
 127   (let ((primo (lambda (command &optional arg)
 128                  (case command
 129                    (prefix "a")
 130                    (candidates '("abb" "abc" "abd")))))
 131         (secundo (lambda (command &optional arg)
 132                    (case command
 133                      (prefix "a")
 134                      (candidates '("acc" "acd"))))))
 135     (let ((company-backend (list 'ignore 'ignore :with secundo)))
 136       (should (null (company-call-backend 'prefix))))
 137     (let ((company-backend (list 'ignore primo :with secundo)))
 138       (should (equal "a" (company-call-backend 'prefix)))
 139       (should (equal '("abb" "abc" "abd" "acc" "acd")
 140                      (company-call-backend 'candidates "a"))))))
 141
 142 (ert-deftest company-begin-backend-failure-doesnt-break-company-backends ()
 143   (with-temp-buffer
 144     (insert "a")
 145     (company-mode)
 146     (should-error
 147      (company-begin-backend (lambda (command &rest ignore))))
 148     (let (company-frontends
 149           (company-backends
 150            (list (lambda (command &optional arg)
 151                    (case command
 152                      (prefix "a")
 153                      (candidates '("a" "ab" "ac")))))))
 154       (let (this-command)
 155         (company-call 'complete))
 156       (should (eq 3 company-candidates-length)))))
 157
 158 (ert-deftest company-require-match-explicit ()
 159   (with-temp-buffer
 160     (insert "ab")
 161     (company-mode)
 162     (let (company-frontends
 163           (company-require-match 'company-explicit-action-p)
 164           (company-backends
 165            (list (lambda (command &optional arg)
 166                    (case command
 167                      (prefix (buffer-substring (point-min) (point)))
 168                      (candidates '("abc" "abd")))))))
 169       (let (this-command)
 170         (company-complete))
 171       (let ((last-command-event ?e))
 172         (company-call 'self-insert-command 1))
 173       (should (eq 2 company-candidates-length))
 174       (should (eq 3 (point))))))
 175
 176 (ert-deftest company-dont-require-match-when-idle ()
 177   (with-temp-buffer
 178     (insert "ab")
 179     (company-mode)
 180     (let (company-frontends
 181           (company-require-match 'company-explicit-action-p)
 182           (company-backends
 183            (list (lambda (command &optional arg)
 184                    (case command
 185                      (prefix (buffer-substring (point-min) (point)))
 186                      (candidates '("abc" "abd")))))))
 187       (company-idle-begin (current-buffer) (selected-window)
 188                           (buffer-chars-modified-tick) (point))
 189       (let ((last-command-event ?e))
 190         (company-call 'self-insert-command 1))
 191       (should (eq nil company-candidates-length))
 192       (should (eq 4 (point))))))
 193
 194 (ert-deftest company-should-complete-whitelist ()
 195   (with-temp-buffer
 196     (insert "ab")
 197     (company-mode)
 198     (let (company-frontends
 199           company-begin-commands
 200           (company-backends
 201            (list (lambda (command &optional arg)
 202                    (case command
 203                      (prefix (buffer-substring (point-min) (point)))
 204                      (candidates '("abc" "abd")))))))
 205       (let ((company-continue-commands nil))
 206         (let (this-command)
 207           (company-complete))
 208         (company-call 'backward-delete-char 1)
 209         (should (null company-candidates-length)))
 210       (let ((company-continue-commands '(backward-delete-char)))
 211         (let (this-command)
 212           (company-complete))
 213         (company-call 'backward-delete-char 1)
 214         (should (eq 2 company-candidates-length))))))
 215
 216 (ert-deftest company-should-complete-blacklist ()
 217   (with-temp-buffer
 218     (insert "ab")
 219     (company-mode)
 220     (let (company-frontends
 221           company-begin-commands
 222           (company-backends
 223            (list (lambda (command &optional arg)
 224                    (case command
 225                      (prefix (buffer-substring (point-min) (point)))
 226                      (candidates '("abc" "abd")))))))
 227       (let ((company-continue-commands '(not backward-delete-char)))
 228         (let (this-command)
 229           (company-complete))
 230         (company-call 'backward-delete-char 1)
 231         (should (null company-candidates-length)))
 232       (let ((company-continue-commands '(not backward-delete-char-untabify)))
 233         (let (this-command)
 234           (company-complete))
 235         (company-call 'backward-delete-char 1)
 236         (should (eq 2 company-candidates-length))))))
 237
 238 (ert-deftest company-auto-complete-explicit ()
 239   (with-temp-buffer
 240     (insert "ab")
 241     (company-mode)
 242     (let (company-frontends
 243           (company-auto-complete 'company-explicit-action-p)
 244           (company-auto-complete-chars '(? ))
 245           (company-backends
 246            (list (lambda (command &optional arg)
 247                    (case command
 248                      (prefix (buffer-substring (point-min) (point)))
 249                      (candidates '("abcd" "abef")))))))
 250       (let (this-command)
 251         (company-complete))
 252       (let ((last-command-event ? ))
 253         (company-call 'self-insert-command 1))
 254       (should (string= "abcd " (buffer-string))))))
 255
 256 (ert-deftest company-no-auto-complete-when-idle ()
 257   (with-temp-buffer
 258     (insert "ab")
 259     (company-mode)
 260     (let (company-frontends
 261           (company-auto-complete 'company-explicit-action-p)
 262           (company-auto-complete-chars '(? ))
 263           (company-backends
 264            (list (lambda (command &optional arg)
 265                    (case command
 266                      (prefix (buffer-substring (point-min) (point)))
 267                      (candidates '("abcd" "abef")))))))
 268       (company-idle-begin (current-buffer) (selected-window)
 269                           (buffer-chars-modified-tick) (point))
 270       (let ((last-command-event ? ))
 271         (company-call 'self-insert-command 1))
 272       (should (string= "ab " (buffer-string))))))
 273
 274 (ert-deftest company-clears-explicit-action-when-no-matches ()
 275   (with-temp-buffer
 276     (company-mode)
 277     (let (company-frontends
 278           company-backends)
 279       (company-call 'manual-begin) ;; fails
 280       (should (null company-candidates))
 281       (should (null (company-explicit-action-p))))))
 282
 283 (ert-deftest company-ignore-case-replaces-prefix ()
 284   (with-temp-buffer
 285     (company-mode)
 286     (let (company-frontends
 287           company-end-of-buffer-workaround
 288           (company-backends
 289            (list (lambda (command &optional arg)
 290                    (case command
 291                      (prefix (buffer-substring (point-min) (point)))
 292                      (candidates '("abcd" "abef"))
 293                      (ignore-case t))))))
 294       (insert "A")
 295       (let (this-command)
 296         (company-complete))
 297       (should (string= "ab" (buffer-string)))
 298       (delete-char -2)
 299       (insert "A") ; hack, to keep it in one test
 300       (company-complete-selection)
 301       (should (string= "abcd" (buffer-string))))))
 302
 303 (ert-deftest company-ignore-case-with-keep-prefix ()
 304   (with-temp-buffer
 305     (insert "AB")
 306     (company-mode)
 307     (let (company-frontends
 308           (company-backends
 309            (list (lambda (command &optional arg)
 310                    (case command
 311                      (prefix (buffer-substring (point-min) (point)))
 312                      (candidates '("abcd" "abef"))
 313                      (ignore-case 'keep-prefix))))))
 314       (let (this-command)
 315         (company-complete))
 316       (company-complete-selection)
 317       (should (string= "ABcd" (buffer-string))))))
 318
 319 (ert-deftest company-non-prefix-completion ()
 320   (with-temp-buffer
 321     (insert "tc")
 322     (company-mode)
 323     (let (company-frontends
 324           company-end-of-buffer-workaround
 325           (company-backends
 326            (list (lambda (command &optional arg)
 327                    (case command
 328                      (prefix (buffer-substring (point-min) (point)))
 329                      (candidates '("tea-cup" "teal-color")))))))
 330       (let (this-command)
 331         (company-complete))
 332       (should (string= "tc" (buffer-string)))
 333       (company-complete-selection)
 334       (should (string= "tea-cup" (buffer-string))))))
 335
 336 (ert-deftest company-pseudo-tooltip-does-not-get-displaced ()
 337   :tags '(interactive)
 338   (with-temp-buffer
 339     (save-window-excursion
 340       (set-window-buffer nil (current-buffer))
 341       (save-excursion (insert " ff"))
 342       (company-mode)
 343       (let ((company-frontends '(company-pseudo-tooltip-frontend))
 344             (company-begin-commands '(self-insert-command))
 345             (company-backends
 346              (list (lambda (c &optional arg)
 347                      (case c (prefix "") (candidates '("a" "b" "c")))))))
 348         (let (this-command)
 349           (company-call 'complete))
 350         (company-call 'open-line 1)
 351         (should (eq 2 (overlay-start company-pseudo-tooltip-overlay)))))))
 352
 353 (ert-deftest company-pseudo-tooltip-show ()
 354   :tags '(interactive)
 355   (with-temp-buffer
 356     (save-window-excursion
 357     (set-window-buffer nil (current-buffer))
 358     (insert "aaaa\n  bb\nccccccc\nddd")
 359     (search-backward "bb")
 360     (let ((col (company--column))
 361           (company-candidates-length 2)
 362           (company-candidates '("123" "45"))
 363           (company-backend 'ignore))
 364       (company-pseudo-tooltip-show (company--row) col 0)
 365       (let ((ov company-pseudo-tooltip-overlay))
 366         ;; With margins.
 367         (should (eq (overlay-get ov 'company-width) 5))
 368         ;; FIXME: Make it 2?
 369         (should (eq (overlay-get ov 'company-height) company-tooltip-limit))
 370         (should (eq (overlay-get ov 'company-column) col))
 371         (should (string= (overlay-get ov 'company-after)
 372                          "  123 \nc 45  c\nddd\n")))))))
 373
 374 (ert-deftest company-preview-show-with-annotations ()
 375   :tags '(interactive)
 376   (with-temp-buffer
 377     (save-window-excursion
 378       (set-window-buffer nil (current-buffer))
 379       (save-excursion (insert "\n"))
 380       (let ((company-candidates-length 1)
 381             (company-candidates '("123")))
 382         (company-preview-show-at-point (point))
 383         (let ((ov company-preview-overlay))
 384           (should (string= (overlay-get ov 'display) "123\n")))))))
 385
 386 (ert-deftest company-pseudo-tooltip-show-with-annotations ()
 387   :tags '(interactive)
 388   (with-temp-buffer
 389     (save-window-excursion
 390       (set-window-buffer nil (current-buffer))
 391       (insert " ")
 392       (save-excursion (insert "\n"))
 393       (let ((company-candidates-length 2)
 394             (company-backend (lambda (action &optional arg &rest _ignore)
 395                                (when (eq action 'annotation)
 396                                  (cdr (assoc arg '(("123" . "(4)")))))))
 397             (company-candidates '("123" "45"))
 398             company-tooltip-align-annotations)
 399         (company-pseudo-tooltip-show-at-point (point))
 400         (let ((ov company-pseudo-tooltip-overlay))
 401           ;; With margins.
 402           (should (eq (overlay-get ov 'company-width) 8))
 403           (should (string= (overlay-get ov 'company-after)
 404                            " 123(4) \n 45     \n")))))))
 405
 406 (ert-deftest company-pseudo-tooltip-show-with-annotations-right-aligned ()
 407   :tags '(interactive)
 408   (with-temp-buffer
 409     (save-window-excursion
 410       (set-window-buffer nil (current-buffer))
 411       (insert " ")
 412       (save-excursion (insert "\n"))
 413       (let ((company-candidates-length 3)
 414             (company-backend (lambda (action &optional arg &rest _ignore)
 415                                (when (eq action 'annotation)
 416                                  (cdr (assoc arg '(("123" . "(4)")
 417                                                    ("67" . "(891011)")))))))
 418             (company-candidates '("123" "45" "67"))
 419             (company-tooltip-align-annotations t))
 420         (company-pseudo-tooltip-show-at-point (point))
 421         (let ((ov company-pseudo-tooltip-overlay))
 422           ;; With margins.
 423           (should (eq (overlay-get ov 'company-width) 13))
 424           (should (string= (overlay-get ov 'company-after)
 425                            " 123     (4) \n 45          \n 67 (891011) \n")))))))
 426
 427 (ert-deftest company-create-lines-shows-numbers ()
 428   (let ((company-show-numbers t)
 429         (company-candidates '("x" "y" "z"))
 430         (company-candidates-length 3)
 431         (company-backend 'ignore))
 432     (should (equal '(" x 1 " " y 2 " " z 3 ")
 433                    (company--create-lines 0 999)))))
 434
 435 (ert-deftest company-create-lines-truncates-annotations ()
 436   (let* ((ww (company--window-width))
 437          (data `(("1" . "(123)")
 438                  ("2" . nil)
 439                  ("3" . ,(concat "(" (make-string (- ww 2) ?4) ")"))
 440                  (,(make-string ww ?4) . "<4>")))
 441          (company-candidates (mapcar #'car data))
 442          (company-candidates-length 4)
 443          (company-tooltip-margin 1)
 444          (company-backend (lambda (cmd &optional arg)
 445                             (when (eq cmd 'annotation)
 446                               (cdr (assoc arg data)))))
 447          company-tooltip-align-annotations)
 448     (should (equal (list (format " 1(123)%s " (company-space-string (- ww 8)))
 449                          (format " 2%s " (company-space-string (- ww 3)))
 450                          (format " 3(444%s " (make-string (- ww 7) ?4))
 451                          (format " %s " (make-string (- ww 2) ?4)))
 452                    (company--create-lines 0 999)))
 453     (let ((company-tooltip-align-annotations t))
 454       (should (equal (list (format " 1%s(123) " (company-space-string (- ww 8)))
 455                            (format " 2%s " (company-space-string (- ww 3)))
 456                            (format " 3 (444%s " (make-string (- ww 8) ?4))
 457                            (format " %s " (make-string (- ww 2) ?4)))
 458                      (company--create-lines 0 999))))))
 459
 460 (ert-deftest company-column-with-composition ()
 461   (with-temp-buffer
 462     (insert "lambda ()")
 463     (compose-region 1 (1+ (length "lambda")) "\\")
 464     (should (= (company--column) 4))))
 465
 466 (ert-deftest company-column-with-line-prefix ()
 467   (with-temp-buffer
 468     (insert "foo")
 469     (put-text-property (point-min) (point) 'line-prefix "  ")
 470     (should (= (company--column) 5))))
 471
 472 (ert-deftest company-column-wth-line-prefix-on-empty-line ()
 473   (with-temp-buffer
 474     (insert "\n")
 475     (forward-char -1)
 476     (put-text-property (point-min) (point-max) 'line-prefix "  ")
 477     (should (= (company--column) 2))))
 478
 479 (ert-deftest company-plainify ()
 480   (let ((tab-width 8))
 481     (should (equal-including-properties
 482              (company-plainify "\tabc\td\t")
 483              (concat "        "
 484                      "abc     "
 485                      "d       "))))
 486   (should (equal-including-properties
 487            (company-plainify (propertize "foobar" 'line-prefix "-*-"))
 488            "-*-foobar")))
 489
 490 (ert-deftest company-modify-line ()
 491   (let ((str "-*-foobar"))
 492     (should (equal-including-properties
 493              (company-modify-line str "zz" 4)
 494              "-*-fzzbar"))
 495     (should (equal-including-properties
 496              (company-modify-line str "xx" 0)
 497              "xx-foobar"))
 498     (should (equal-including-properties
 499              (company-modify-line str "zz" 10)
 500              "-*-foobar zz"))))
 501
 502 (ert-deftest company-scrollbar-bounds ()
 503   (should (equal nil (company--scrollbar-bounds 0 3 3)))
 504   (should (equal nil (company--scrollbar-bounds 0 4 3)))
 505   (should (equal '(0 . 0) (company--scrollbar-bounds 0 1 2)))
 506   (should (equal '(1 . 1) (company--scrollbar-bounds 2 2 4)))
 507   (should (equal '(2 . 3) (company--scrollbar-bounds 7 4 12)))
 508   (should (equal '(1 . 2) (company--scrollbar-bounds 3 4 12)))
 509   (should (equal '(1 . 3) (company--scrollbar-bounds 4 5 11))))
 510
 511 ;;; Template
 512
 513 (ert-deftest company-template-removed-after-the-last-jump ()
 514   (with-temp-buffer
 515     (insert "{ }")
 516     (goto-char 2)
 517     (let ((tpl (company-template-declare-template (point) (1- (point-max)))))
 518       (save-excursion
 519         (dotimes (i 2)
 520           (insert " ")
 521           (company-template-add-field tpl (point) "foo")))
 522       (company-call 'template-forward-field)
 523       (should (= 3 (point)))
 524       (company-call 'template-forward-field)
 525       (should (= 7 (point)))
 526       (company-call 'template-forward-field)
 527       (should (= 11 (point)))
 528       (should (zerop (length (overlay-get tpl 'company-template-fields))))
 529       (should (null (overlay-buffer tpl))))))
 530
 531 (ert-deftest company-template-removed-after-input-and-jump ()
 532   (with-temp-buffer
 533     (insert "{ }")
 534     (goto-char 2)
 535     (let ((tpl (company-template-declare-template (point) (1- (point-max)))))
 536       (save-excursion
 537         (insert " ")
 538         (company-template-add-field tpl (point) "bar"))
 539       (company-call 'template-move-to-first tpl)
 540       (should (= 3 (point)))
 541       (dolist (c (string-to-list "tee"))
 542         (let ((last-command-event c))
 543           (company-call 'self-insert-command 1)))
 544       (should (string= "{ tee }" (buffer-string)))
 545       (should (overlay-buffer tpl))
 546       (company-call 'template-forward-field)
 547       (should (= 7 (point)))
 548       (should (null (overlay-buffer tpl))))))
 549
 550 (defun company-call (name &rest args)
 551   (let* ((maybe (intern (format "company-%s" name)))
 552          (command (if (fboundp maybe) maybe name)))
 553     (let ((this-command command))
 554       (run-hooks 'pre-command-hook))
 555     (apply command args)
 556     (let ((this-command command))
 557       (run-hooks 'post-command-hook))))
 558
 559 (ert-deftest company-template-c-like-templatify ()
 560   (with-temp-buffer
 561     (let ((text "foo(int a, short b)"))
 562       (insert text)
 563       (company-template-c-like-templatify text)
 564       (should (equal "foo(arg0, arg1)" (buffer-string)))
 565       (should (looking-at "arg0"))
 566       (should (equal "int a"
 567                      (overlay-get (company-template-field-at) 'display))))))
 568
 569 (ert-deftest company-template-c-like-templatify-trims-after-closing-paren ()
 570   (with-temp-buffer
 571     (let ((text "foo(int a, short b)!@ #1334 a"))
 572       (insert text)
 573       (company-template-c-like-templatify text)
 574       (should (equal "foo(arg0, arg1)" (buffer-string)))
 575       (should (looking-at "arg0")))))
 576
 577 ;;; Elisp
 578
 579 (defmacro company-elisp-with-buffer (contents &rest body)
 580   (declare (indent 0))
 581   `(with-temp-buffer
 582      (insert ,contents)
 583      (setq major-mode 'emacs-lisp-mode)
 584      (re-search-backward "|")
 585      (replace-match "")
 586      (let ((company-elisp-detect-function-context t))
 587        ,@body)))
 588
 589 (ert-deftest company-elisp-candidates-predicate ()
 590   (company-elisp-with-buffer
 591     "(foo ba|)"
 592     (should (eq (company-elisp--candidates-predicate "ba")
 593                 'boundp))
 594     (should (eq (let (company-elisp-detect-function-context)
 595                   (company-elisp--candidates-predicate "ba"))
 596                 'company-elisp--predicate)))
 597   (company-elisp-with-buffer
 598     "(foo| )"
 599     (should (eq (company-elisp--candidates-predicate "foo")
 600                 'fboundp))
 601     (should (eq (let (company-elisp-detect-function-context)
 602                   (company-elisp--candidates-predicate "foo"))
 603                 'company-elisp--predicate)))
 604   (company-elisp-with-buffer
 605     "(foo 'b|)"
 606     (should (eq (company-elisp--candidates-predicate "b")
 607                 'company-elisp--predicate))))
 608
 609 (ert-deftest company-elisp-candidates-predicate-in-docstring ()
 610   (company-elisp-with-buffer
 611    "(def foo () \"Doo be doo `ide|"
 612    (should (eq 'company-elisp--predicate
 613                (company-elisp--candidates-predicate "ide")))))
 614
 615 ;; This one's also an integration test.
 616 (ert-deftest company-elisp-candidates-recognizes-binding-form ()
 617   (let ((company-elisp-detect-function-context t)
 618         (obarray [when what whelp])
 619         (what 1)
 620         (whelp 2)
 621         (wisp 3))
 622     (company-elisp-with-buffer
 623       "(let ((foo 7) (wh| )))"
 624       (should (equal '("what" "whelp")
 625                      (company-elisp-candidates "wh"))))
 626     (company-elisp-with-buffer
 627       "(cond ((null nil) (wh| )))"
 628       (should (equal '("when")
 629                      (company-elisp-candidates "wh"))))))
 630
 631 (ert-deftest company-elisp-candidates-predicate-binding-without-value ()
 632   (loop for (text prefix predicate) in '(("(let (foo|" "foo" boundp)
 633                                          ("(let (foo (bar|" "bar" boundp)
 634                                          ("(let (foo) (bar|" "bar" fboundp))
 635         do
 636         (eval `(company-elisp-with-buffer
 637                  ,text
 638                  (should (eq ',predicate
 639                              (company-elisp--candidates-predicate ,prefix)))))))
 640
 641 (ert-deftest company-elisp-finds-vars ()
 642   (let ((obarray [boo bar baz backquote])
 643         (boo t)
 644         (bar t)
 645         (baz t))
 646     (should (equal '("bar" "baz")
 647                    (company-elisp--globals "ba" 'boundp)))))
 648
 649 (ert-deftest company-elisp-finds-functions ()
 650   (let ((obarray [when what whelp])
 651         (what t)
 652         (whelp t))
 653     (should (equal '("when")
 654                    (company-elisp--globals "wh" 'fboundp)))))
 655
 656 (ert-deftest company-elisp-finds-things ()
 657   (let ((obarray [when what whelp])
 658         (what t)
 659         (whelp t))
 660     (should (equal '("what" "whelp" "when")
 661                    (sort (company-elisp--globals "wh" 'company-elisp--predicate)
 662                          'string<)))))
 663
 664 (ert-deftest company-elisp-locals-vars ()
 665   (company-elisp-with-buffer
 666     "(let ((foo 5) (bar 6))
 667        (cl-labels ((borg ()))
 668          (lambda (boo baz)
 669            b|)))"
 670     (should (equal '("bar" "baz" "boo")
 671                    (company-elisp--locals "b" nil)))))
 672
 673 (ert-deftest company-elisp-locals-single-var ()
 674   (company-elisp-with-buffer
 675     "(dotimes (itk 100)
 676        (dolist (item items)
 677          it|))"
 678     (should (equal '("itk" "item")
 679                    (company-elisp--locals "it" nil)))))
 680
 681 (ert-deftest company-elisp-locals-funs ()
 682   (company-elisp-with-buffer
 683     "(cl-labels ((foo ())
 684                  (fee ()))
 685        (let ((fun 4))
 686          (f| )))"
 687     (should (equal '("fee" "foo")
 688                    (sort (company-elisp--locals "f" t) 'string<)))))
 689
 690 (ert-deftest company-elisp-locals-skips-current-varlist ()
 691   (company-elisp-with-buffer
 692     "(let ((foo 1)
 693            (f| )))"
 694     (should (null (company-elisp--locals "f" nil)))))
 695
 696 (ert-deftest company-elisp-show-locals-first ()
 697   (company-elisp-with-buffer
 698     "(let ((floo 1)
 699            (flop 2)
 700            (flee 3))
 701        fl|)"
 702     (let ((obarray [float-pi]))
 703       (let (company-elisp-show-locals-first)
 704         (should (eq nil (company-elisp 'sorted))))
 705       (let ((company-elisp-show-locals-first t))
 706         (should (eq t (company-elisp 'sorted)))
 707         (should (equal '("flee" "floo" "flop" "float-pi")
 708                        (company-elisp-candidates "fl")))))))
 709
 710 (ert-deftest company-elisp-candidates-no-duplicates ()
 711   (company-elisp-with-buffer
 712     "(let ((float-pi 4))
 713        f|)"
 714     (let ((obarray [float-pi])
 715           (company-elisp-show-locals-first t))
 716       (should (equal '("float-pi") (company-elisp-candidates "f"))))))
 717
 718 (ert-deftest company-elisp-shouldnt-complete-defun-name ()
 719   (company-elisp-with-buffer
 720     "(defun foob|)"
 721     (should (null (company-elisp 'prefix)))))
 722
 723 (ert-deftest company-elisp-should-complete-def-call ()
 724   (company-elisp-with-buffer
 725     "(defu|"
 726     (should (equal "defu" (company-elisp 'prefix)))))
 727
 728 (ert-deftest company-elisp-should-complete-in-defvar ()
 729   ;; It will also complete the var name, at least for now.
 730   (company-elisp-with-buffer
 731     "(defvar abc de|"
 732     (should (equal "de" (company-elisp 'prefix)))))
 733
 734 (ert-deftest company-elisp-shouldnt-complete-in-defun-arglist ()
 735   (company-elisp-with-buffer
 736     "(defsubst foobar (ba|"
 737     (should (null (company-elisp 'prefix)))))
 738
 739 (ert-deftest company-elisp-prefix-in-defun-body ()
 740   (company-elisp-with-buffer
 741     "(defun foob ()|)"
 742     (should (equal "" (company-elisp 'prefix)))))
 743
 744 ;;; Clang
 745
 746 (ert-deftest company-clang-objc-templatify ()
 747   (with-temp-buffer
 748     (let ((text "createBookWithTitle:andAuthor:"))
 749       (insert text)
 750       (company-clang-objc-templatify text)
 751       (should (equal "createBookWithTitle:arg0 andAuthor:arg1" (buffer-string)))
 752       (should (looking-at "arg0"))
 753       (should (null (overlay-get (company-template-field-at) 'display))))))