module RSpec::ActiveModel::Mocks::Mocks::ActiveModelStubExtensions

def as_new_record

Stubs `persisted` to return false and `id` to return nil 
def as_new_record
  RSpec::Mocks.allow_message(self, :persisted?).and_return(false)
  RSpec::Mocks.allow_message(self, :id).and_return(nil)
  self
end

def persisted?

Returns `true` by default. Override with a stub. 
def persisted?
  true
end