+ # test dependencies beforehand to avoid the waiting loop below
+ missing_dependencies=
+ test_require_external_prereq dtach || missing_dependencies=1
+ test_require_external_prereq emacs || missing_dependencies=1
+ test_require_external_prereq ${TEST_EMACSCLIENT} || missing_dependencies=1
+ test -z "$missing_dependencies" || return
+
+ if [ -z "$EMACS_SERVER" ]; then
+ emacs_tests="${this_test_bare}.el"
+ if [ -f "$TEST_DIRECTORY/$emacs_tests" ]; then
+ load_emacs_tests="--eval '(load \"$emacs_tests\")'"
+ else
+ load_emacs_tests=
+ fi
+ server_name="notmuch-test-suite-$$"
+ # start a detached session with an emacs server
+ # user's TERM (or 'vt100' in case user's TERM is known dumb
+ # or unknown) is given to dtach which assumes a minimally
+ # VT100-compatible terminal -- and emacs inherits that
+ TERM=$SMART_TERM dtach -n "$TEST_TMPDIR/emacs-dtach-socket.$$" \
+ sh -c "stty rows 24 cols 80; exec '$TMP_DIRECTORY/run_emacs' \
+ --no-window-system \
+ $load_emacs_tests \
+ --eval '(setq server-name \"$server_name\")' \
+ --eval '(server-start)' \
+ --eval '(orphan-watchdog $$)'" || return
+ EMACS_SERVER="$server_name"
+ # wait until the emacs server is up
+ until test_emacs '()' >/dev/null 2>/dev/null; do
+ sleep 1
+ done
+ fi
+
+ # Clear test-output output file. Most Emacs tests end with a
+ # call to (test-output). If the test code fails with an
+ # exception before this call, the output file won't get
+ # updated. Since we don't want to compare against an output
+ # file from another test, so start out with an empty file.
+ rm -f OUTPUT
+ touch OUTPUT
+
+ ${TEST_EMACSCLIENT} --socket-name="$EMACS_SERVER" --eval "(notmuch-test-progn $@)"