Comments on: Rails Testing Strategies: Valid and Invalid Data http://www.sciwerks.com/blog/2006/06/12/rails-testing-strategies-valid-and-invalid-data/ Software for scientists, by scientists Thu, 19 Aug 2010 22:43:31 -0500 http://wordpress.org/?v=2.8.4 hourly 1 By: Antti Tarvainen http://www.sciwerks.com/blog/2006/06/12/rails-testing-strategies-valid-and-invalid-data/comment-page-1/#comment-93 Antti Tarvainen Fri, 17 Nov 2006 08:03:21 +0000 http://www.sciwerks.com/blog/2006/06/12/rails-testing-strategies-valid-and-invalid-data/#comment-93 I was trying to say that to prevent such problems you should use require_dependency instead of the plain require. I was trying to say that to prevent such problems you should use require_dependency instead of the plain require.

]]> By: Antti Tarvainen http://www.sciwerks.com/blog/2006/06/12/rails-testing-strategies-valid-and-invalid-data/comment-page-1/#comment-92 Antti Tarvainen Thu, 16 Nov 2006 15:02:37 +0000 http://www.sciwerks.com/blog/2006/06/12/rails-testing-strategies-valid-and-invalid-data/#comment-92 Thanks for the tip, Kevin. I tried to use this technique also in development mode so that I can quickly create new data to play with. Just so that others don't have to spend three hours hunting for the problem: there's an issue with loading dependencies. It doesn't matter in testing because because the classes are loaded only once. However, in development mode you need to do this: class Item Thanks for the tip, Kevin.

I tried to use this technique also in development mode so that I can quickly create new data to play with. Just so that others don’t have to spend three hours hunting for the problem: there’s an issue with loading dependencies. It doesn’t matter in testing because because the classes are loaded only once. However, in development mode you need to do this:

class Item

]]> By: Eric Nielsen http://www.sciwerks.com/blog/2006/06/12/rails-testing-strategies-valid-and-invalid-data/comment-page-1/#comment-7 Eric Nielsen Mon, 12 Jun 2006 18:08:07 +0000 http://www.sciwerks.com/blog/2006/06/12/rails-testing-strategies-valid-and-invalid-data/#comment-7 I've been using the following custom assertion to help with negative testing of validates_presence_of: <code lang="ruby"> def assert_presence_of(var, field) assert var.errors.invalid?(field) end </code> I've been struggling with a lot of the issues for how to TDD the Model elements -- don't want to test the "magic" of AR, but want to test that the desired fields are present in the model, even before getting to the issue of testing validations.... (See my blog for my evolving struggle.) I’ve been using the following custom assertion to help with negative testing of validates_presence_of:

  1. def assert_presence_of(var, field)
  2.   assert var.errors.invalid?(field)
  3. end

I’ve been struggling with a lot of the issues for how to TDD the Model elements — don’t want to test the “magic” of AR, but want to test that the desired fields are present in the model, even before getting to the issue of testing validations…. (See my blog for my evolving struggle.)

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