Add cookie parameter in test_class
Add cookie parameter in test_class

In order to extend the TestClass in core we have added the cookie
parameter in order to make the same calls in core using cookie

kelonye/mist.io,kelonye/mist.io,Lao-liu/mist.io,johnnyWalnut/mist.io,Lao-liu/mist.io,johnnyWalnut/mist.io,DimensionDataCBUSydney/mist.io,afivos/mist.io,munkiat/mist.io,johnnyWalnut/mist.io,zBMNForks/mist.io,kelonye/mist.io,afivos/mist.io,munkiat/mist.io,munkiat/mist.io,munkiat/mist.io,DimensionDataCBUSydney/mist.io,Lao-liu/mist.io,Lao-liu/mist.io,DimensionDataCBUSydney/mist.io,DimensionDataCBUSydney/mist.io,zBMNForks/mist.io,zBMNForks/mist.io,afivos/mist.io