test: save buffer content to file instead of printing it in Emacs tests

[notmuch] / test / test-lib.el

diff --git a/test/test-lib.el b/test/test-lib.el
index 943999622d927265357a984efce409e5a883b3ba..4e7f5cfc30a7538011124717884b026a19fc2f06 100644 (file)
--- a/test/test-lib.el
+++ b/test/test-lib.el
@@ -20,6 +20,24 @@
 ;;
 ;; Authors: Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
 
+;; avoid crazy 10-column default of --batch
+(set-frame-width (window-frame (get-buffer-window)) 80)
+
+(defun notmuch-test-wait ()
+  "Wait for process completion."
+  (while (get-buffer-process (current-buffer))
+    (sleep-for 0.1)))
+
+(defun test-output (&optional filename)
+  "Save current buffer to file FILENAME.  Default FILENAME is OUTPUT."
+  (write-region (point-min) (point-max) (or filename "OUTPUT")))
+
+(defun test-visible-output (&optional filename)
+  "Save visible text in current buffer to file FILENAME.  Default
+FILENAME is OUTPUT."
+  (let ((text (visible-buffer-string)))
+    (with-temp-file (or filename "OUTPUT") (insert text))))
+
 (defun visible-buffer-string ()
   "Same as `buffer-string', but excludes invisible text."
   (visible-buffer-substring (point-min) (point-max)))