I hope there’s not a typo this time 
With self.use_instantiated_fixtures = false in test_helper.rb (default
since 1.0 version) I want on demand instances.
This
@publish_articles[‘article_linux’]
return a Fixture object (breakpointed, I see the data of fixture
fields). So I assume that publish_articles is well populated with
fixture datas
This
assert_equal publish_articles(:article_linux).title, @article.title
produce an error because publish_articles(:article_linux) evaluate to
nil
Why ? I don’t see the reason.