--- a/main.lua	Tue Sep 11 23:24:08 2018 +0100
+++ b/main.lua	Tue Sep 11 23:24:55 2018 +0100
@@ -104,7 +104,6 @@
 	for _, file in ipairs(arg) do
 		table.insert(files, file);
 	end
-	assert(#files > 0, "No test script provided");
 	return files;
 end
 
@@ -299,6 +298,7 @@
 
 local result_tally = { all = {} };
 
+assert(#files > 0, "No test script provided");
 for i = 1, #files do
 	local ret = run_test_script(files[i]);
 	if not result_tally[ret.status] then