Resurrect restore test and updates

tests/test_resurrect_restore.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+source $CURRENT_DIR/helpers/helpers.sh
+source $CURRENT_DIR/helpers/resurrect_helpers.sh
+
+setup_file_for_restore() {
+	mkdir -p ~/.tmux/resurrect/
+	cp tests/fixtures/restore_file.txt "${HOME}/.tmux/resurrect/restore_file.txt"
+	ln -sf restore_file.txt "${HOME}/.tmux/resurrect/last"
+}
+
+restore_tmux_environment_and_save_again() {
+	set_tmux_conf_helper<<-HERE
+	run-shell '~/.tmux/plugins/tmux-resurrect/resurrect.tmux'
+	HERE
+	set_screen_dimensions_helper
+	$CURRENT_DIR/helpers/restore_and_save_tmux_test_environment.exp
+}
+
+main() {
+	install_tmux_resurrect_helper
+	setup_file_for_restore
+	restore_tmux_environment_and_save_again
+
+	if last_save_file_differs_helper "tests/fixtures/restore_file.txt"; then
+		fail_helper "Saved file not correct after restore"
+	fi
+	exit_helper
+}
+main