FactoryBot skip_create

factory_bot has an option to skip calling save! on create:

FactoryBot.define do
  factory :model_without_table do
    skip_create
    an_attribute { "An Attribute" }
  end
end

This will build the object in memory, but not persist it. Useful if you want to create a factory for a model that isn't backed by a database table, where trying to persist the record would result in an exception.

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