Failure: test_operatingsystem_race_condition_handling not all expectations were satisfied unsatisfied expectations: - expected exactly twice, invoked once: Operatingsystem(id: integer, major: string, name: string, minor: string, nameindicator: string, created_at: datetime, updated_at: datetime, release_name: string, type: string, description: string, password_hash: string, title: string).find_by(any_parameters) satisfied expectations: - allowed any number of times, invoked never: #<AnyInstance:Resolv::DNS>.getaddresses(any_parameters) - allowed any number of times, invoked never: #<AnyInstance:Resolv::DNS>.getaddress(any_parameters) - allowed any number of times, invoked never: #<AnyInstance:Resolv::DNS>.getnames(any_parameters) - allowed any number of times, invoked never: #<AnyInstance:Resolv::DNS>.getname(any_parameters)