test: update the changed file domain

Author: leeyeh

test/cloud.js

@@ -59,7 +59,7 @@ describe('AV.Cloud', function() {
         expect(result.avObject.get('fileColumn')).to.be.a(AV.File);
         expect(result.avObject.get('fileColumn').name()).to.be('ttt.jpg');
         expect(result.avObject.get('fileColumn').url()).to.be(
-          'http://ac-4h2h4okw.clouddn.com/4qSbLMO866Tf4YtT9QEwJwysTlHGC9sMl7bpTwhQ.jpg'
+          'http://lc-4h2h4okw.cn-n1.lcfile.com/4qSbLMO866Tf4YtT9QEwJwysTlHGC9sMl7bpTwhQ.jpg'
         );
 
         result.avObjects.forEach(function(object) {