; Improve commentary in 'files-tests-save-buffer-read-only-file'.

1 files changed, 3 insertions, 0 deletions

diff --git a/test/lisp/files-tests.el b/test/lisp/files-tests.el
index 77a4c22ed6a..3492bd701b2 100644
--- a/test/lisp/files-tests.el
+++ b/test/lisp/files-tests.el
@@ -1754,6 +1754,9 @@ Ensure that the issues from bug#66546 are fixed."
                 (signal 'file-error "Write failed")))
 
       (let* (;; Sanitize environment.
+             ;; The tests below test text for equality, so we need to
+             ;; disable any code- and EOL-conversions to avoid false
+             ;; positives and false negatives.
              (coding-system-for-read 'no-conversion)
              (coding-system-for-write 'no-conversion)
              (auto-save-default nil)