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