Fix failing GitHub specs
Fix failing Supermarket worker specs
Remove all uses of "its" (RSpec deprecation)
Replace be_true with be_truthy (RSpec deprecation)
Change pending to skip (RSpec deprecation)
Change have(n).items to .size eq(n) (RSpec deprecated)
Remove unneeded test for the Supermarket URL
Use > instead of greater_than
Use a helper method to create a remote_cookbook
Stub celluloid objects with #wrapped_object