Merge pull request soumak77#112 from bookcreator/slashes2

Fix for soumak77#97

Author: soumak77

src/firebase.js

@@ -146,6 +146,7 @@ MockFirebase.prototype.toString = function () {
 };
 
 MockFirebase.prototype.child = function (childPath) {
+  if (childPath === '/') return this;
   assert(childPath, 'A child path is required');
   var parts = _.compact(childPath.split('/'));
   var childKey = parts.shift();

test/unit/firebase.js

@@ -319,6 +319,10 @@ describe('MockFirebase', function () {
       expect(ref.ref).to.equal(ref);
     });
 
+    it('child / returns same reference', function () {
+      expect(ref.child('/')).to.equal(ref);
+    });
+
   });
 
   describe('#set', function () {