Unique data in dm-sweatshop
dm-sweatshop is how you set up test data for your datamapper apps. Standard practice is to generate random data that follows a pattern:
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User.fix {{ :login => /\w+/.gen }} new_user = User.gen |
Let’s not now debate whether or not random data in tests is a good idea. What’s more important is that the above code should make you uneasy if login is supposed to be unique. There was a hack in sweatshop that would try recreating the data if you had a uniqueness constraint on login and it was invalid, but it was exactly that: a hack. As of a few days ago (what will be 0.9.7), you need to be more explicit if you want unique data. It’s pretty easy:
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include DataMapper::Sweatshop::Unique User.fix {{ :login => unique { /\w+/.gen } }} |
Tada! You can also easily get non-random unique data by providing a block with one parameter. Check the README for this and other cool things you can do.
