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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:
;; 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!
)))
;;; Loading
;;;
(defmacro with-some-interesting-snippet-dirs (&rest body)
`(yas/saving-variables
(with-snippet-dirs
'((".emacs.d/snippets"
("c-mode"
(".yas-parents" . "cc-mode")
("printf" . "printf($1);"))
("emacs-lisp-mode" ("ert-deftest" . "(ert-deftest ${1:name} () $0)"))
("lisp-interaction-mode" (".yas-parents" . "emacs-lisp-mode")))
("library/snippets"
("c-mode" (".yas-parents" . "c++-mode"))
("cc-mode" ("def" . "# define"))
("emacs-lisp-mode" ("dolist" . "(dolist)"))
("lisp-interaction-mode" ("sc" . "brother from another mother"))))
,@body)))
(ert-deftest basic-jit-loading ()
"Test basic loading and expansion of snippets"
(with-some-interesting-snippet-dirs
(yas/reload-all)
(yas/basic-jit-loading-1)))
(ert-deftest basic-jit-loading-with-compiled-snippets ()
"Test basic loading and expansion of snippets"
(with-some-interesting-snippet-dirs
(yas/reload-all)
(yas/recompile-all)
(flet ((yas/load-directory-2
(&rest dummies)
(ert-fail "yas/load-directory-2 shouldn't be called when snippets have been compiled")))
(yas/reload-all)
(yas/basic-jit-loading-1))))
(defun yas/basic-jit-loading-1 (&optional compile)
(with-temp-buffer
(should (= 4 (hash-table-count yas/scheduled-jit-loads)))
(should (= 0 (hash-table-count yas/tables)))
(lisp-interaction-mode)
(yas/minor-mode 1)
(should (= 2 (hash-table-count yas/scheduled-jit-loads)))
(should (= 2 (hash-table-count yas/tables)))
(should (= 1 (hash-table-count (yas/table-uuidhash (gethash 'lisp-interaction-mode yas/tables)))))
(should (= 2 (hash-table-count (yas/table-uuidhash (gethash 'emacs-lisp-mode yas/tables)))))
(yas/should-expand '(("sc" . "brother from another mother")
("dolist" . "(dolist)")
("ert-deftest" . "(ert-deftest name () )")))
(c-mode)
(yas/minor-mode 1)
(should (= 0 (hash-table-count yas/scheduled-jit-loads)))
(should (= 4 (hash-table-count yas/tables)))
(should (= 1 (hash-table-count (yas/table-uuidhash (gethash 'c-mode yas/tables)))))
(should (= 1 (hash-table-count (yas/table-uuidhash (gethash 'cc-mode yas/tables)))))
(yas/should-expand '(("printf" . "printf();")
("def" . "# define")))
(yas/should-not-expand '("sc" "dolist" "ert-deftest"))))
;;; Helpers
;;;
(defun yas/should-expand (keys-and-expansions)
(dolist (key-and-expansion keys-and-expansions)
(yas/exit-all-snippets)
(erase-buffer)
(insert (car key-and-expansion))
(let ((yas/fallback-behavior nil))
(ert-simulate-command '(yas/expand)))
(should (string= (buffer-substring-no-properties (point-min) (point-max))
(cdr key-and-expansion))))
(yas/exit-all-snippets))
(defun yas/should-not-expand (keys)
(dolist (key keys)
(yas/exit-all-snippets)
(erase-buffer)
(insert key)
(let ((yas/fallback-behavior nil))
(ert-simulate-command '(yas/expand)))
(should (string= (buffer-substring-no-properties (point-min) (point-max)) key))))
(defun yas/mock-insert (string)
(interactive)
(do ((i 0 (1+ i)))
((= i (length string)))
(insert (aref string i))))
(defun yas/make-file-or-dirs (ass)
(let ((file-or-dir-name (car ass))
(content (cdr ass)))
(cond ((listp content)
(make-directory file-or-dir-name 'parents)
(let ((default-directory (concat default-directory "/" file-or-dir-name)))
(mapc #'yas/make-file-or-dirs content)))
((stringp content)
(with-current-buffer (find-file file-or-dir-name)
(insert content)
(save-buffer)
(kill-buffer (current-buffer))))
(t
(message "[yas] oops don't know this content")))))
(defun yas/variables ()
(let ((syms))
(mapatoms #'(lambda (sym)
(if (and (string-match "^yas/[^/]" (symbol-name sym))
(boundp sym))
(push sym syms))))
syms))
(defmacro yas/saving-variables (&rest body)
`(let ,(mapcar #'(lambda (sym)
`(,sym ,sym))
(yas/variables))
,@body))
(defmacro with-snippet-dirs (dirs &rest body)
`(let ((default-directory (make-temp-file "yasnippet-fixture" t)))
(unwind-protect
(progn
(setq yas/snippet-dirs ',(mapcar #'car (cadr dirs)))
(mapc #'yas/make-file-or-dirs ,dirs)
,@body)
(when (>= emacs-major-version 23)
(delete-directory default-directory 'recursive)))))
;;; Older emacsen
;;;
(unless (fboundp 'special-mode)
(define-minor-mode special-mode "Just a placeholder for something isn't in emacs 22"))
;;; btw to test this in emacs22 mac osx:
;;; curl -L -O https://github.com/mirrors/emacs/raw/master/lisp/emacs-lisp/ert.el
;;; curl -L -O https://github.com/mirrors/emacs/raw/master/lisp/emacs-lisp/ert-x.el
;;; /usr/bin/emacs -nw -Q -L . -l yasnippet-tests.el --batch -e ert
(provide 'yasnippet-tests)
;;; yasnippet-tests.el ends here
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