compiler_activerecordfixtures.md

ActiveRecordFixtures

Tapioca::Dsl::Compilers::ActiveRecordFixtures decorates RBIs for test fixture methods that are created dynamically by Rails.

For example, given an application with a posts table, we can have a fixture file

first_post:
  author: John
  title: My post

Rails will allow us to invoke posts(:first_post) in tests to get the fixture record. The generated RBI by this compiler will produce the following

# test_case.rbi
# typed: true
class ActiveSupport::TestCase
  sig { params(fixture_names: T.any(String, Symbol)).returns(T.untyped) }
  def posts(*fixture_names); end
end