If you need a bunch of factories of different type, you'll simply have to create them individually. You can make this a bit less verbose by adding this to your test_helper.rb
:
include FactoryGirl::Syntax::Methods
Then you can create factories like this:
create(:factory_name)
And of course, if you need a bunch of records of the same type, you can create them like this:
5.times { create(:factory_name) }
As mentioned in my comment, creating all your factories in one fell swoop on initialization of your test framework is counter-productive. The idea behind FactoryGirl is to provide just the data you need for each test case or context. This avoids dependencies between tests that tend to slip into a fixture-driven approach.