From 789fb4f7e54b9f45b2287446cd2866e3effc94e7 Mon Sep 17 00:00:00 2001
From: Dave Eddy <dave@daveeddy.com>
Date: Fri, 4 Sep 2015 20:33:31 -0400
Subject: [PATCH] slug asserts

---
 lib/common.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/common.js b/lib/common.js
index 8732322..0aaf85a 100644
--- a/lib/common.js
+++ b/lib/common.js
@@ -321,6 +321,10 @@ function normShortId(s) {
  * to use for caching
  */
 function slug(o) {
+    assert.object(o, 'o');
+    assert.string(o.account, 'o.account');
+    assert.string(o.url, 'o.url');
+
     var acct = o.account.replace(/[@]/g, '_');
     var url = o.url.replace(/^https?:\/\//, '');
     var s = format('%s@%s', acct, url).replace(/[!#$%\^&\*:'"\?\/\\\.]/g, '_');