[fix] Check global object, return empty location when undefined (#142)

* [fix] Check if global variable exists
* [test] Add tests: parse when global variable is undefined
* [test] change global not defined tests title

Author: ahonn

index.js

@@ -50,7 +50,8 @@ var ignore = { hash: 1, query: 1 };
  * @api public
  */
 function lolcation(loc) {
-  loc = loc || global.location || {};
+  var location = global && global.location || {};
+  loc = loc || location;
 
   var finaldestination = {}
     , type = typeof loc

test/test.js

@@ -29,6 +29,19 @@ describe('url-parse', function () {
     assume(url.hostname).to.be.a('string');
   });
 
+  it('works when the global variable is not defined', function () {
+    var globalVar = global;
+    global = undefined;
+    var url = parse('http://google.com/?foo=bar', true);
+
+    assume(url).to.be.an('object');
+    assume(url.pathname).to.be.a('string');
+    assume(url.host).to.be.a('string');
+    assume(url.hostname).to.be.a('string');
+
+    global = globalVar;
+  });
+
   describe('extractProtocol', function () {
     it('extracts the protocol data', function () {
       assume(parse.extractProtocol('')).eql({