test: Add a new test_emacs function to test-lib.sh

This should be quite handy for doing automated testing of the
emacs-based functionality in notmuch. This function invokes emacs with
the necessary command-line arguments, (to run in batch mode with no
local initialization, to load the notmuch code from the source
directory, and to ensure an 80-column width).

1 files changed, 6 insertions, 0 deletions

diff --git a/test/test-lib.sh b/test/test-lib.sh
index f1b07cc4..f67fbd1b 100644
--- a/test/test-lib.sh
+++ b/test/test-lib.sh
@@ -715,6 +715,12 @@ test_done () {
 	fi
 }
 
+test_emacs () {
+    emacs_code="$1"
+    emacs --batch --no-site-file --directory ../../emacs --load notmuch.el --eval "(progn (set-frame-width (window-frame (get-buffer-window)) 80) ${emacs_code})"
+}
+
+
 find_notmuch_path ()
 {
     dir="$1"