diff options
Diffstat (limited to 'test/lisp/emacs-lisp/cl-print-tests.el')
| -rw-r--r-- | test/lisp/emacs-lisp/cl-print-tests.el | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/cl-print-tests.el b/test/lisp/emacs-lisp/cl-print-tests.el index 7594d2466b5..2be1d2cb493 100644 --- a/test/lisp/emacs-lisp/cl-print-tests.el +++ b/test/lisp/emacs-lisp/cl-print-tests.el @@ -233,5 +233,41 @@ (let ((print-circle t)) (should (equal "(0 . #1=(0 . #1#))" (cl-prin1-to-string x)))))) +(ert-deftest cl-print-tests-print-to-string-with-limit () + (let* ((thing10 (make-list 10 'a)) + (thing100 (make-list 100 'a)) + (thing10x10 (make-list 10 thing10)) + (nested-thing (let ((val 'a)) + (dotimes (i 20) + (setq val (list val))) + val)) + ;; Make a consistent environment for this test. + (print-circle nil) + (print-level nil) + (print-length nil)) + + ;; Print something that fits in the space given. + (should (string= (cl-prin1-to-string thing10) + (cl-print-to-string-with-limit #'cl-prin1 thing10 100))) + + ;; Print something which needs to be abbreviated and which can be. + (should (< (length (cl-print-to-string-with-limit #'cl-prin1 thing100 100)) + 100 + (length (cl-prin1-to-string thing100)))) + + ;; Print something resistant to easy abbreviation. + (should (string= (cl-prin1-to-string thing10x10) + (cl-print-to-string-with-limit #'cl-prin1 thing10x10 100))) + + ;; Print something which should be abbreviated even if the limit is large. + (should (< (length (cl-print-to-string-with-limit #'cl-prin1 nested-thing 1000)) + (length (cl-prin1-to-string nested-thing)))) + + ;; Print with no limits. + (dolist (thing (list thing10 thing100 thing10x10 nested-thing)) + (let ((rep (cl-prin1-to-string thing))) + (should (string= rep (cl-print-to-string-with-limit #'cl-prin1 thing 0))) + (should (string= rep (cl-print-to-string-with-limit #'cl-prin1 thing nil))))))) + ;;; cl-print-tests.el ends here. |