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-rw-r--r--test/lisp/subr-tests.el12
1 files changed, 12 insertions, 0 deletions
diff --git a/test/lisp/subr-tests.el b/test/lisp/subr-tests.el
index 67f7fc97496..e3f798d11cf 100644
--- a/test/lisp/subr-tests.el
+++ b/test/lisp/subr-tests.el
@@ -551,5 +551,17 @@ See https://debbugs.gnu.org/cgi/bugreport.cgi?bug=19350."
(should (equal (replace-regexp-in-string "\\`\\|x" "z" "--xx--")
"z--zz--")))
+(ert-deftest subr-tests--change-group-33341 ()
+ (with-temp-buffer
+ (buffer-enable-undo)
+ (insert "0\n")
+ ;; (undo-boundary)
+ (let ((g (prepare-change-group)))
+ (activate-change-group g)
+ (insert "b\n")
+ (insert "c\n")
+ (cancel-change-group g))
+ (should (equal (buffer-string) "0\n"))))
+
(provide 'subr-tests)
;;; subr-tests.el ends here