railties/lib/rails/generators/test_unit/generator/templates/generator_test.rb.tt

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require "test_helper"
require "<%= generator_path %>"

<% module_namespacing do -%>
class <%= class_name %>GeneratorTest < Rails::Generators::TestCase
  tests <%= class_name %>Generator
  destination Rails.root.join("tmp/generators")
  setup :prepare_destination

  # test "generator runs without errors" do
  #   assert_nothing_raised do
  #     run_generator ["arguments"]
  #   end
  # end
end
<% end -%>