tell user if no tests were run.

Author: cloudhead

lib/vows/console.js

@@ -47,6 +47,10 @@ this.result = function (event) {
     var status = (event.errored && 'errored') || (event.broken && 'broken') ||
                  (event.honored && 'honored') || (event.pending && 'pending');
 
+    if (event.total === 0) {
+        return [$("Could not find any tests to run.").bold.red];
+    }
+
     event.honored && result.push($(event.honored).bold + " honored");
     event.broken  && result.push($(event.broken).bold  + " broken");
     event.errored && result.push($(event.errored).bold + " errored");