company-elisp-tests.el

   1 ;;; company-elisp-tests.el --- company-elisp tests
   2
   3 ;; Copyright (C) 2013-2014  Free Software Foundation, Inc.
   4
   5 ;; Author: Dmitry Gutov
   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 (defmacro company-elisp-with-buffer (contents &rest body)
  29   (declare (indent 0))
  30   `(with-temp-buffer
  31      (insert ,contents)
  32      (setq major-mode 'emacs-lisp-mode)
  33      (re-search-backward "|")
  34      (replace-match "")
  35      (let ((company-elisp-detect-function-context t))
  36        ,@body)))
  37
  38 (ert-deftest company-elisp-candidates-predicate ()
  39   (company-elisp-with-buffer
  40     "(foo ba|)"
  41     (should (eq (company-elisp--candidates-predicate "ba")
  42                 'boundp))
  43     (should (eq (let (company-elisp-detect-function-context)
  44                   (company-elisp--candidates-predicate "ba"))
  45                 'company-elisp--predicate)))
  46   (company-elisp-with-buffer
  47     "(foo| )"
  48     (should (eq (company-elisp--candidates-predicate "foo")
  49                 'fboundp))
  50     (should (eq (let (company-elisp-detect-function-context)
  51                   (company-elisp--candidates-predicate "foo"))
  52                 'company-elisp--predicate)))
  53   (company-elisp-with-buffer
  54     "(foo 'b|)"
  55     (should (eq (company-elisp--candidates-predicate "b")
  56                 'company-elisp--predicate))))
  57
  58 (ert-deftest company-elisp-candidates-predicate-in-docstring ()
  59   (company-elisp-with-buffer
  60    "(def foo () \"Doo be doo `ide|"
  61    (should (eq 'company-elisp--predicate
  62                (company-elisp--candidates-predicate "ide")))))
  63
  64 ;; This one's also an integration test.
  65 (ert-deftest company-elisp-candidates-recognizes-binding-form ()
  66   (let ((company-elisp-detect-function-context t)
  67         (obarray [when what whelp])
  68         (what 1)
  69         (whelp 2)
  70         (wisp 3))
  71     (company-elisp-with-buffer
  72       "(let ((foo 7) (wh| )))"
  73       (should (equal '("what" "whelp")
  74                      (company-elisp-candidates "wh"))))
  75     (company-elisp-with-buffer
  76       "(cond ((null nil) (wh| )))"
  77       (should (equal '("when")
  78                      (company-elisp-candidates "wh"))))))
  79
  80 (ert-deftest company-elisp-candidates-predicate-binding-without-value ()
  81   (loop for (text prefix predicate) in '(("(let (foo|" "foo" boundp)
  82                                          ("(let (foo (bar|" "bar" boundp)
  83                                          ("(let (foo) (bar|" "bar" fboundp))
  84         do
  85         (eval `(company-elisp-with-buffer
  86                  ,text
  87                  (should (eq ',predicate
  88                              (company-elisp--candidates-predicate ,prefix)))))))
  89
  90 (ert-deftest company-elisp-finds-vars ()
  91   (let ((obarray [boo bar baz backquote])
  92         (boo t)
  93         (bar t)
  94         (baz t))
  95     (should (equal '("bar" "baz")
  96                    (company-elisp--globals "ba" 'boundp)))))
  97
  98 (ert-deftest company-elisp-finds-functions ()
  99   (let ((obarray [when what whelp])
 100         (what t)
 101         (whelp t))
 102     (should (equal '("when")
 103                    (company-elisp--globals "wh" 'fboundp)))))
 104
 105 (ert-deftest company-elisp-finds-things ()
 106   (let ((obarray [when what whelp])
 107         (what t)
 108         (whelp t))
 109     (should (equal '("what" "whelp" "when")
 110                    (sort (company-elisp--globals "wh" 'company-elisp--predicate)
 111                          'string<)))))
 112
 113 (ert-deftest company-elisp-locals-vars ()
 114   (company-elisp-with-buffer
 115     "(let ((foo 5) (bar 6))
 116        (cl-labels ((borg ()))
 117          (lambda (boo baz)
 118            b|)))"
 119     (should (equal '("bar" "baz" "boo")
 120                    (company-elisp--locals "b" nil)))))
 121
 122 (ert-deftest company-elisp-locals-single-var ()
 123   (company-elisp-with-buffer
 124     "(dotimes (itk 100)
 125        (dolist (item items)
 126          it|))"
 127     (should (equal '("itk" "item")
 128                    (company-elisp--locals "it" nil)))))
 129
 130 (ert-deftest company-elisp-locals-funs ()
 131   (company-elisp-with-buffer
 132     "(cl-labels ((foo ())
 133                  (fee ()))
 134        (let ((fun 4))
 135          (f| )))"
 136     (should (equal '("fee" "foo")
 137                    (sort (company-elisp--locals "f" t) 'string<)))))
 138
 139 (ert-deftest company-elisp-locals-skips-current-varlist ()
 140   (company-elisp-with-buffer
 141     "(let ((foo 1)
 142            (f| )))"
 143     (should (null (company-elisp--locals "f" nil)))))
 144
 145 (ert-deftest company-elisp-show-locals-first ()
 146   (company-elisp-with-buffer
 147     "(let ((floo 1)
 148            (flop 2)
 149            (flee 3))
 150        fl|)"
 151     (let ((obarray [float-pi]))
 152       (let (company-elisp-show-locals-first)
 153         (should (eq nil (company-elisp 'sorted))))
 154       (let ((company-elisp-show-locals-first t))
 155         (should (eq t (company-elisp 'sorted)))
 156         (should (equal '("flee" "floo" "flop" "float-pi")
 157                        (company-elisp-candidates "fl")))))))
 158
 159 (ert-deftest company-elisp-candidates-no-duplicates ()
 160   (company-elisp-with-buffer
 161     "(let ((float-pi 4))
 162        f|)"
 163     (let ((obarray [float-pi])
 164           (company-elisp-show-locals-first t))
 165       (should (equal '("float-pi") (company-elisp-candidates "f"))))))
 166
 167 (ert-deftest company-elisp-shouldnt-complete-defun-name ()
 168   (company-elisp-with-buffer
 169     "(defun foob|)"
 170     (should (null (company-elisp 'prefix)))))
 171
 172 (ert-deftest company-elisp-should-complete-def-call ()
 173   (company-elisp-with-buffer
 174     "(defu|"
 175     (should (equal "defu" (company-elisp 'prefix)))))
 176
 177 (ert-deftest company-elisp-should-complete-in-defvar ()
 178   ;; It will also complete the var name, at least for now.
 179   (company-elisp-with-buffer
 180     "(defvar abc de|"
 181     (should (equal "de" (company-elisp 'prefix)))))
 182
 183 (ert-deftest company-elisp-shouldnt-complete-in-defun-arglist ()
 184   (company-elisp-with-buffer
 185     "(defsubst foobar (ba|"
 186     (should (null (company-elisp 'prefix)))))
 187
 188 (ert-deftest company-elisp-prefix-in-defun-body ()
 189   (company-elisp-with-buffer
 190     "(defun foob ()|)"
 191     (should (equal "" (company-elisp 'prefix)))))