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authorMarcin Borkowski <mbork@mbork.pl>2017-02-14 11:30:36 +0100
committerMarcin Borkowski <mbork@mbork.pl>2017-05-09 14:26:08 +0200
commit6d58dda40a0a43d14dffdd995f0cb3dcc329fa4b (patch)
treeecc8cc8a738a645ffa7ed4e52300769f216ff6e9 /test/lisp/emacs-lisp/lisp-tests.el
parent72d7961d678f9c5f4cb812e0bb9b6dffafb47c68 (diff)
downloademacs-6d58dda40a0a43d14dffdd995f0cb3dcc329fa4b.tar.gz
Add elisp-tests-with-temp-buffer, a new testing macro
* test/lisp/emacs-lisp/lisp-tests.el (elisp-test-point-marker-regex) New variable. (elisp-tests-with-temp-buffer): New macro to help test functions moving the point and/or mark.
Diffstat (limited to 'test/lisp/emacs-lisp/lisp-tests.el')
-rw-r--r--test/lisp/emacs-lisp/lisp-tests.el39
1 files changed, 39 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/lisp-tests.el b/test/lisp/emacs-lisp/lisp-tests.el
index 8cba7fc526a..f6039f78eb1 100644
--- a/test/lisp/emacs-lisp/lisp-tests.el
+++ b/test/lisp/emacs-lisp/lisp-tests.el
@@ -5,6 +5,7 @@
;; Author: Aaron S. Hawley <aaron.s.hawley@gmail.com>
;; Author: Stefan Monnier <monnier@iro.umontreal.ca>
;; Author: Daniel Colascione <dancol@dancol.org>
+;; Author: Marcin Borkowski <mbork@mbork.pl>
;; Keywords: internal
;; GNU Emacs is free software: you can redistribute it and/or modify
@@ -303,5 +304,43 @@
;; abcdefghijklmnopqrstuv
i f a scan-error)
+;;; Helpers
+
+(defvar elisp-test-point-marker-regex "=!\\([a-zA-Z0-9-]+\\)="
+ "A regexp matching placeholders for point position for
+`elisp-tests-with-temp-buffer'.")
+
+;; Copied and heavily modified from `python-tests-with-temp-buffer'
+(defmacro elisp-tests-with-temp-buffer (contents &rest body)
+ "Create an `emacs-lisp-mode' enabled temp buffer with CONTENTS.
+BODY is the code to be executed within the temp buffer. Point is
+always located at the beginning of buffer. Special markers of
+the form =!NAME= in CONTENTS are removed, and a for each one
+a variable called NAME is bound to the position of such
+a marker."
+ (declare (indent 1) (debug t))
+ `(with-temp-buffer
+ (emacs-lisp-mode)
+ (insert ,contents)
+ (goto-char (point-min))
+ (while (re-search-forward elisp-test-point-marker-regex nil t)
+ (delete-region (match-beginning 0)
+ (match-end 0)))
+ (goto-char (point-min))
+ ,(let (marker-list)
+ (with-temp-buffer
+ (insert (cond ((symbolp contents)
+ (symbol-value contents))
+ (t contents)))
+ (goto-char (point-min))
+ (while (re-search-forward elisp-test-point-marker-regex nil t)
+ (push (list (intern (match-string-no-properties 1))
+ (match-beginning 0))
+ marker-list)
+ (delete-region (match-beginning 0)
+ (match-end 0))))
+ `(let ,marker-list
+ ,@body))))
+
(provide 'lisp-tests)
;;; lisp-tests.el ends here