This way we don't have to write `"spec/fixtures/files"` every time.
Note this method isn't included in factories. We could include it like
so:
```
FactoryBot::SyntaxRunner.class_eval do
include ActiveSupport::Testing::FileFixtures
self.file_fixture_path = RSpec.configuration.file_fixture_path
end
```
However, I'm not sure about the possible side effects, and since we only
use attachments in a few factories, there isn't much gain in applying
the monkey-patch.
By using real XML responses developers will be able to understand better
how the integration works (the data flow), and the correspondency between
`remote_census` settings and their place at a real XML response.
As `stubbed_responses` methods were removed from the model layer now the
stubbing part should be managed from the test environment code so also
added a new helper module `RemoteCensusSetup` that can be used anywhere
where we need to call the web service.
Co-Authored-By: Javi Martín <javim@elretirao.net>
