ruby-mode-tests.el 12.6 KB
Newer Older
1 2
;;; ruby-mode-tests.el --- Test suite for ruby-mode

3
;; Copyright (C) 2012-2013 Free Software Foundation, Inc.
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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

;;; Commentary:

;;; Code:

(require 'ruby-mode)

26
(defun ruby-should-indent (content column)
27
  "Assert indentation COLUMN on the last line of CONTENT."
28
  (ruby-with-temp-buffer content
29
    (ruby-indent-line)
30 31 32 33 34 35
    (should (= (current-indentation) column))))

(defun ruby-should-indent-buffer (expected content)
  "Assert that CONTENT turns into EXPECTED after the buffer is re-indented.

The whitespace before and including \"|\" on each line is removed."
36
  (ruby-with-temp-buffer (ruby-test-string content)
37 38 39
    (indent-region (point-min) (point-max))
    (should (string= (ruby-test-string expected) (buffer-string)))))

40 41 42 43 44 45 46
(defmacro ruby-with-temp-buffer (contents &rest body)
  (declare (indent 1) (debug t))
  `(with-temp-buffer
     (insert ,contents)
     (ruby-mode)
     ,@body))

47 48
(defun ruby-test-string (s &rest args)
  (apply 'format (replace-regexp-in-string "^[ \t]*|" "" s) args))
49 50 51 52 53

(defun ruby-assert-state (content &rest values-plist)
  "Assert syntax state values at the end of CONTENT.

VALUES-PLIST is a list with alternating index and value elements."
54
  (ruby-with-temp-buffer content
55 56 57 58 59 60 61
    (syntax-propertize (point))
    (while values-plist
      (should (eq (nth (car values-plist)
                       (parse-partial-sexp (point-min) (point)))
                  (cadr values-plist)))
      (setq values-plist (cddr values-plist)))))

62
(defun ruby-assert-face (content pos face)
63
  (ruby-with-temp-buffer content
64 65 66
    (font-lock-fontify-buffer)
    (should (eq face (get-text-property pos 'face)))))

67
(ert-deftest ruby-indent-after-symbol-made-from-string-interpolation ()
68
  "It can indent the line after symbol made using string interpolation."
69 70 71 72 73 74 75 76 77 78
  (ruby-should-indent "def foo(suffix)\n  :\"bar#{suffix}\"\n"
                      ruby-indent-level))

(ert-deftest ruby-indent-after-js-style-symbol-with-block-beg-name ()
  "JS-style hash symbol can have keyword name."
  (ruby-should-indent "link_to \"home\", home_path, class: \"foo\"\n" 0))

(ert-deftest ruby-discern-singleton-class-from-heredoc ()
  (ruby-assert-state "foo <<asd\n" 3 ?\n)
  (ruby-assert-state "class <<asd\n" 3 nil))
79

80 81
(ert-deftest ruby-heredoc-font-lock ()
  (let ((s "foo <<eos.gsub('^ *', '')"))
Dmitry Gutov's avatar
Dmitry Gutov committed
82
    (ruby-assert-face s 9 font-lock-string-face)
83 84 85 86 87
    (ruby-assert-face s 10 nil)))

(ert-deftest ruby-singleton-class-no-heredoc-font-lock ()
  (ruby-assert-face "class<<a" 8 nil))

88 89 90 91 92 93 94 95 96 97 98 99 100 101
(ert-deftest ruby-deep-indent ()
  (let ((ruby-deep-arglist nil)
        (ruby-deep-indent-paren '(?\( ?\{ ?\[ ?\] t)))
    (ruby-should-indent "foo = [1,\n2" 7)
    (ruby-should-indent "foo = {a: b,\nc: d" 7)
    (ruby-should-indent "foo(a,\nb" 4)))

(ert-deftest ruby-deep-indent-disabled ()
  (let ((ruby-deep-arglist nil)
        (ruby-deep-indent-paren nil))
    (ruby-should-indent "foo = [\n1" ruby-indent-level)
    (ruby-should-indent "foo = {\na: b" ruby-indent-level)
    (ruby-should-indent "foo(\na" ruby-indent-level)))

102 103 104 105 106
(ert-deftest ruby-indent-after-keyword-in-a-string ()
  (ruby-should-indent "a = \"abc\nif\"\n  " 0)
  (ruby-should-indent "a = %w[abc\n       def]\n  " 0)
  (ruby-should-indent "a = \"abc\n      def\"\n  " 0))

107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165
(ert-deftest ruby-indent-simple ()
  (ruby-should-indent-buffer
   "if foo
   |  bar
   |end
   |zot
   |"
   "if foo
   |bar
   |  end
   |    zot
   |"))

(ert-deftest ruby-indent-keyword-label ()
  (ruby-should-indent-buffer
   "bar(class: XXX) do
   |  foo
   |end
   |bar
   |"
   "bar(class: XXX) do
   |     foo
   |  end
   |    bar
   |"))

(ert-deftest ruby-indent-method-with-question-mark ()
  (ruby-should-indent-buffer
   "if x.is_a?(XXX)
   |  foo
   |end
   |"
   "if x.is_a?(XXX)
   | foo
   |   end
   |"))

(ert-deftest ruby-indent-expr-in-regexp ()
  (ruby-should-indent-buffer
   "if /#{foo}/ =~ s
   |  x = 1
   |end
   |"
   "if /#{foo}/ =~ s
   | x = 1
   |  end
   |"))

(ert-deftest ruby-indent-singleton-class ()
  (ruby-should-indent-buffer
   "class<<bar
   |  foo
   |end
   |"
   "class<<bar
   |foo
   |   end
   |"))

166 167 168 169 170 171 172 173 174 175 176 177 178 179
(ert-deftest ruby-indent-inside-heredoc-after-operator ()
  (ruby-should-indent-buffer
   "b=<<eos
   |     42"
   "b=<<eos
   |     42"))

(ert-deftest ruby-indent-inside-heredoc-after-space ()
  (ruby-should-indent-buffer
   "foo <<eos.gsub(' ', '*')
   |     42"
   "foo <<eos.gsub(' ', '*')
   |     42"))

180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226
(ert-deftest ruby-indent-array-literal ()
  (let ((ruby-deep-indent-paren nil))
    (ruby-should-indent-buffer
     "foo = [
     |  bar
     |]
     |"
     "foo = [
     | bar
     |  ]
     |"))
  (ruby-should-indent-buffer
   "foo do
   |  [bar]
   |end
   |"
   "foo do
   |[bar]
   |  end
   |"))

(ert-deftest ruby-indent-begin-end ()
  (ruby-should-indent-buffer
   "begin
   |  a[b]
   |end
   |"
   "begin
   | a[b]
   |  end
   |"))

(ert-deftest ruby-indent-array-after-paren-and-space ()
  (ruby-should-indent-buffer
   "class A
   |  def foo
   |    foo( [])
   |  end
   |end
   |"
   "class A
   | def foo
   |foo( [])
   |end
   |  end
   |"))

227 228 229 230 231 232 233 234 235 236 237 238 239
(ert-deftest ruby-indent-after-block-in-continued-expression ()
  (ruby-should-indent-buffer
   "var =
   |  begin
   |    val
   |  end
   |statement"
   "var =
   |begin
   |val
   |end
   |statement"))

Dmitry Gutov's avatar
Dmitry Gutov committed
240 241 242 243 244 245 246 247 248 249 250 251
(ert-deftest ruby-indent-spread-args-in-parens ()
  (let ((ruby-deep-indent-paren '(?\()))
    (ruby-should-indent-buffer
     "foo(1,
     |    2,
     |    3)
     |"
     "foo(1,
     | 2,
     |  3)
     |")))

252
(ert-deftest ruby-move-to-block-stops-at-indentation ()
253
  (ruby-with-temp-buffer "def f\nend"
254 255
    (beginning-of-line)
    (ruby-move-to-block -1)
256
    (should (looking-at "^def"))))
257 258

(ert-deftest ruby-toggle-block-to-do-end ()
259
  (ruby-with-temp-buffer "foo {|b|\n}"
260
    (beginning-of-line)
261
    (ruby-toggle-block)
262
    (should (string= "foo do |b|\nend" (buffer-string)))))
263 264

(ert-deftest ruby-toggle-block-to-brace ()
265 266 267 268 269 270 271 272 273 274
  (let ((pairs '((16 . "foo {|b| b + 2 }")
                 (15 . "foo {|b|\n  b + 2\n}"))))
    (dolist (pair pairs)
      (with-temp-buffer
        (let ((fill-column (car pair)))
          (insert "foo do |b|\n  b + 2\nend")
          (ruby-mode)
          (beginning-of-line)
          (ruby-toggle-block)
          (should (string= (cdr pair) (buffer-string))))))))
275 276

(ert-deftest ruby-toggle-block-to-multiline ()
277
  (ruby-with-temp-buffer "foo {|b| b + 1}"
278
    (beginning-of-line)
279
    (ruby-toggle-block)
280
    (should (string= "foo do |b|\n  b + 1\nend" (buffer-string)))))
281

282
(ert-deftest ruby-recognize-symbols-starting-with-at-character ()
Dmitry Gutov's avatar
Dmitry Gutov committed
283
  (ruby-assert-face ":@abc" 3 font-lock-constant-face))
284 285 286

(ert-deftest ruby-hash-character-not-interpolation ()
  (ruby-assert-face "\"This is #{interpolation}\"" 15
Dmitry Gutov's avatar
Dmitry Gutov committed
287
                    font-lock-variable-name-face)
288
  (ruby-assert-face "\"This is \\#{no interpolation} despite the #\""
Dmitry Gutov's avatar
Dmitry Gutov committed
289 290
                    15 font-lock-string-face)
  (ruby-assert-face "\n#@comment, not ruby code" 5 font-lock-comment-face)
291
  (ruby-assert-state "\n#@comment, not ruby code" 4 t)
292
  (ruby-assert-face "# A comment cannot have #{an interpolation} in it"
Dmitry Gutov's avatar
Dmitry Gutov committed
293
                    30 font-lock-comment-face)
294
  (ruby-assert-face "# #{comment}\n \"#{interpolation}\"" 16
Dmitry Gutov's avatar
Dmitry Gutov committed
295 296
                    font-lock-variable-name-face))

297
(ert-deftest ruby-interpolation-suppresses-quotes-inside ()
Dmitry Gutov's avatar
Dmitry Gutov committed
298 299 300 301 302 303
  (let ((s "\"<ul><li>#{@files.join(\"</li><li>\")}</li></ul>\""))
    (ruby-assert-state s 8 nil)
    (ruby-assert-face s 9 font-lock-string-face)
    (ruby-assert-face s 10 font-lock-variable-name-face)
    (ruby-assert-face s 41 font-lock-string-face)))

304 305 306 307 308 309 310 311 312 313 314 315
(ert-deftest ruby-interpolation-suppresses-one-double-quote ()
  (let ((s "\"foo#{'\"'}\""))
    (ruby-assert-state s 8 nil)
    (ruby-assert-face s 8 font-lock-variable-name-face)
    (ruby-assert-face s 11 font-lock-string-face)))

(ert-deftest ruby-interpolation-suppresses-one-backtick ()
  (let ((s "`as#{'`'}das`"))
    (ruby-assert-state s 8 nil)))

(ert-deftest ruby-interpolation-keeps-non-quote-syntax ()
  (let ((s "\"foo#{baz.tee}bar\""))
316 317
    (ruby-with-temp-buffer s
      (goto-char (point-min))
318 319 320 321 322
      (ruby-mode)
      (font-lock-fontify-buffer)
      (search-forward "tee")
      (should (string= (thing-at-point 'symbol) "tee")))))

Dmitry Gutov's avatar
Dmitry Gutov committed
323 324 325 326 327 328 329 330
(ert-deftest ruby-interpolation-inside-percent-literal-with-paren ()
  :expected-result :failed
  (let ((s "%(^#{\")\"}^)"))
    (ruby-assert-face s 3 font-lock-string-face)
    (ruby-assert-face s 4 font-lock-variable-name-face)
    (ruby-assert-face s 10 font-lock-string-face)
    ;; It's confused by the closing paren in the middle.
    (ruby-assert-state s 8 nil)))
331

332 333 334 335
(ert-deftest ruby-add-log-current-method-examples ()
  (let ((pairs '(("foo" . "#foo")
                 ("C.foo" . ".foo")
                 ("self.foo" . ".foo"))))
336 337
    (dolist (pair pairs)
      (let ((name  (car pair))
338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397
            (value (cdr pair)))
        (ruby-with-temp-buffer (ruby-test-string
                                "module M
                                |  class C
                                |    def %s
                                |      _
                                |    end
                                |  end
                                |end"
                                name)
          (search-backward "_")
          (forward-line)
          (should (string= (ruby-add-log-current-method)
                           (format "M::C%s" value))))))))

(ert-deftest ruby-add-log-current-method-outside-of-method ()
  (ruby-with-temp-buffer (ruby-test-string
                          "module M
                          |  class C
                          |    def foo
                          |    end
                          |    _
                          |  end
                          |end")
    (search-backward "_")
    (should (string= (ruby-add-log-current-method)"M::C"))))

(ert-deftest ruby-add-log-current-method-in-singleton-class ()
  (ruby-with-temp-buffer (ruby-test-string
                          "class C
                          |  class << self
                          |    def foo
                          |      _
                          |    end
                          |  end
                          |end")
    (search-backward "_")
    (should (string= (ruby-add-log-current-method) "C.foo"))))

(ert-deftest ruby-add-log-current-method-namespace-shorthand ()
  (ruby-with-temp-buffer (ruby-test-string
                          "class C::D
                          |  def foo
                          |    _
                          |  end
                          |end")
    (search-backward "_")
    (should (string= (ruby-add-log-current-method) "C::D#foo"))))

(ert-deftest ruby-add-log-current-method-after-inner-class ()
  (ruby-with-temp-buffer (ruby-test-string
                          "module M
                          |  class C
                          |    class D
                          |    end
                          |    _
                          |  end
                          |end")
    (search-backward "_")
    (should (string= (ruby-add-log-current-method) "M::C"))))
398

399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446
(defvar ruby-block-test-example
  (ruby-test-string
   "class C
   |  def foo
   |    1
   |  end
   |
   |  def bar
   |    2
   |  end
   |
   |  def baz
   |    some do
   |    end
   |  end
   |end"))

(defmacro ruby-deftest-move-to-block (name &rest body)
  `(ert-deftest ,(intern (format "ruby-move-to-block-%s" name)) ()
     (with-temp-buffer
       (insert ruby-block-test-example)
       (ruby-mode)
       ,@body)))

(put 'ruby-deftest-move-to-block 'lisp-indent-function 'defun)

(ruby-deftest-move-to-block works-on-do
  (goto-line 11)
  (ruby-end-of-block)
  (should (= 12 (line-number-at-pos)))
  (ruby-beginning-of-block)
  (should (= 11 (line-number-at-pos))))

(ruby-deftest-move-to-block zero-is-noop
  (goto-line 5)
  (ruby-move-to-block 0)
  (should (= 5 (line-number-at-pos))))

(ruby-deftest-move-to-block ok-with-three
  (goto-line 2)
  (ruby-move-to-block 3)
  (should (= 13 (line-number-at-pos))))

(ruby-deftest-move-to-block ok-with-minus-two
  (goto-line 10)
  (ruby-move-to-block -2)
  (should (= 2 (line-number-at-pos))))

447 448 449
(provide 'ruby-mode-tests)

;;; ruby-mode-tests.el ends here