## test_helper.rb defines an anchor

# BEGIN custom_assertion
class ActiveSupport::TestCase
  def assert_size(collection, size, message = nil)
    message ||= "expected #{collection.inspect} to have #{size} elements but instead had #{collection.size}"
    assert_block message do
      collection.size == size
    end
  end
end
# END custom_assertion



## test_helper_custom_assertion.rb.inc references the anchor

testing/example/test/test_helper.rb#custom_assertion



## rake render complains

code/output/testing/test_helper_custom_assertion.rb:7: syntax error, unexpected $end, expecting kEND
  end
     ^
Validating syntax of code samples: 112 valid, 1 invalid
Invalid files:
code/output/testing/test_helper_custom_assertion.rb
Rendering code samples



## the outputted test_helper_custom_assertion.rb is missing the last line

class ActiveSupport::TestCase
  def assert_size(collection, size, message = nil)
    message ||= "expected #{collection.inspect} to have #{size} elements but instead had #{collection.size}"
    assert_block message do
      collection.size == size
    end
  end