Merge pull request #80 from msokk/fix-node6

path.dirname does not accept undefined anymore

Author: defunctzombie

.travis.yml

@@ -2,3 +2,6 @@ language: node_js
 node_js:
     - "0.8"
     - "0.10"
+    - "4"
+    - "5"
+    - "6"

index.js

@@ -214,6 +214,7 @@ function resolve(id, opts, cb) {
     // opts.packageFilter
 
     opts = opts || {};
+    opts.filename = opts.filename || '';
 
     var base = path.dirname(opts.filename);
 
@@ -278,6 +279,8 @@ resolve.sync = function (id, opts) {
     // opts.packageFilter
 
     opts = opts || {};
+    opts.filename = opts.filename || '';
+
     var base = path.dirname(opts.filename);
 
     if (opts.basedir) {