unit testing many to one relationship

[jeetu]

nosetest example in turbogears http://www.turbogears.org/2.2/docs/main/Testing/index.html suggests use of klass and attrs for testing a single table. What if i have multiple tables like in many to one relationships. I want to initiate two tables in single setup of nosetest. How to do it. I am expecting something like

class TestUser(ModelTest):
    """Unit test case for the ``User`` model."""
    klass1 = model.User
    attrs1 = dict(
        user_name = u"ignucius",
        email_address = u"ignu...@example.org"
        group = u"test" )
   
    klass2 = model.Group
    attrs2 = dict(
        group_name = u"test",
        )

    def test_something(self):
         pass

Is something like this possible? An example would help a lot.

[jeetu]

@all
Or may be I have to modify __init__.py in tests/model dir so that klass accepts list of tables and attrs accept some sort of list of list of dicts. Is that a good approach?

[Craig Small]

On Mon, Nov 05, 2012 at 12:55:22AM -0800, jeetu wrote:
> klass and attrs for testing a single table. What if i have multiple tables
> like in many to one relationships. I want to initiate two tables in single
> setup of nosetest. How to do it. I am expecting something like

I'm not sure myself. I've got the following.

class TestParent(ModelTest):
klass = model.Parent
attrs = dict(
child = model.Child(u'Test Child Name')
)

or, just to be confusing:

class TestParent(ModelTest):
klass = model.Parent

def do_get_dependencies(self):
test_child = model.Child(u'Test Child Name')
return {'child': test_child }

I think the second one is more correct but not sure.

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[Michael Pedersen]

Another valid option is to consider using bootalchemy. I was able to use it to load up a complete database model, and then run tests against that model. I modeled even many-to-many relations using it, and it was pretty straightforward. I'm actually planning on using it at work in the very near future again for a significant rewrite that I've got coming up.

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