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Added a few ert unit tests, mostly for very basic snippet mechanics

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Joao Tavora 2012-03-13 11:23:38 +00:00
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yasnippet-tests.el Executable file
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;;; yasnippet-tests.el --- some yasnippet tests
;; Copyright (C) 2012 João Távora
;; Author: João Távora <joaot@siscog.pt>
;; Keywords: emulations, convenience
;; This program 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.
;; This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Attempt to test basic snippet mechanics and the loading system
;;; Code:
(require 'yasnippet)
(require 'ert)
(require 'ert-x)
;;; Snippet mechanics
(ert-deftest field-navigation ()
(with-temp-buffer
(yas/minor-mode 1)
(yas/expand-snippet "${1:brother} from another ${2:mother}")
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"brother from another mother"))
(should (looking-at "brother"))
(ert-simulate-command '(yas/next-field-or-maybe-expand))
(should (looking-at "mother"))
(ert-simulate-command '(yas/prev-field))
(should (looking-at "brother"))))
(ert-deftest simple-mirror ()
(with-temp-buffer
(yas/minor-mode 1)
(yas/expand-snippet "${1:brother} from another $1")
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"brother from another brother"))
(ert-simulate-command `(yas/mock-insert "bla"))
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"bla from another bla"))))
(ert-deftest mirror-with-transformation ()
(with-temp-buffer
(yas/minor-mode 1)
(yas/expand-snippet "${1:brother} from another ${1:$(upcase yas/text)}")
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"brother from another BROTHER"))
(ert-simulate-command `(yas/mock-insert "bla"))
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"bla from another BLA"))))
(ert-deftest nested-placeholders-kill-superfield ()
(with-temp-buffer
(yas/minor-mode 1)
(yas/expand-snippet "brother from ${2:another ${3:mother}}!")
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"brother from another mother!"))
(ert-simulate-command `(yas/mock-insert "bla"))
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"brother from bla!"))))
(ert-deftest nested-placeholders-use-subfield ()
(with-temp-buffer
(yas/minor-mode 1)
(yas/expand-snippet "brother from ${2:another ${3:mother}}!")
(ert-simulate-command '(yas/next-field-or-maybe-expand))
(ert-simulate-command `(yas/mock-insert "bla"))
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"brother from another bla!"))))
;; (ert-deftest in-snippet-undo ()
;; (with-temp-buffer
;; (yas/minor-mode 1)
;; (yas/expand-snippet "brother from ${2:another ${3:mother}}!")
;; (ert-simulate-command '(yas/next-field-or-maybe-expand))
;; (ert-simulate-command `(yas/mock-insert "bla"))
;; (ert-simulate-command '(undo))
;; (should (string= (buffer-substring-no-properties (point-min) (point-max))
;; "brother from another mother!"))))
;;; Misc tests
;;;
(ert-deftest protection-overlay-no-cheating ()
"Protection overlays at the very end of the buffer, are dealt by cheatingly inserting a newline!
TODO: correct this bug!"
:expected-result :failed
(with-temp-buffer
(yas/minor-mode 1)
(yas/expand-snippet "${2:brother} from another ${1:mother}")
(should (string= (buffer-substring-no-properties (point-min) (point-max))
"brother from another mother") ;; no newline should be here!
)))
;;; Helpers
;;;
(defun yas/mock-insert (string)
(interactive)
(do ((i 0 (1+ i)))
((= i (length string)))
(insert (aref string i))))
(provide 'yasnippet-tests)
;;; yasnippet-tests.el ends here