From: Mattias Engdegård <mattiase@acm.org>
Date: Fri, 25 Jun 2021 17:43:04 +0000 (+0200)
Subject: Print newlines as \n instead of \12 in ERT results
X-Git-Tag: emacs-28.0.90~2028
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=52528d6a162630a57ec0dd182295b4ce2c4c228d;p=emacs.git

Print newlines as \n instead of \12 in ERT results

This makes test errors unquestionably more readable.  The change also
makes FF print as \f; other controls still use octal escapes.

* lisp/emacs-lisp/ert.el (ert--pp-with-indentation-and-newline):
Run `pp` with `pp-escape-newlines` set to `t`.
---

diff --git a/lisp/emacs-lisp/ert.el b/lisp/emacs-lisp/ert.el
index 7de07bd6f53..50b45092ca8 100644
--- a/lisp/emacs-lisp/ert.el
+++ b/lisp/emacs-lisp/ert.el
@@ -1301,7 +1301,7 @@ empty string."
   "Pretty-print OBJECT, indenting it to the current column of point.
 Ensures a final newline is inserted."
   (let ((begin (point))
-        (pp-escape-newlines nil)
+        (pp-escape-newlines t)
         (print-escape-control-characters t))
     (pp object (current-buffer))
     (unless (bolp) (insert "\n"))