[TIP] Nose teardown functions not run while expected to

[Raphael Marvie]

Dear TIP list,

I am trying to use nose for my tests on a new project. In addition to 
finding and running the tests with nosetests, I am attempting to use 
nose API for writing the tests.

However, I am facing a problem with the execution of the teardown for 
failing tests. When a single test fail all the test suite fail as the 
teardown of the test has not been run, so my test database is not in a 
coherent state. Here is the simplest code I can write that illustrate my 
problem:

import nose

def setup_func():
     print 'setup test'

def teardown_func():
     print 'teardown test'

@nose.with_setup(setup_func, teardown_func)
def test_i_should_fail():
     nose.tools.assert_true(False)

Running this test displays the failing assertion as well as the 'setup 
test' printing, but 'teadown test' is not printed. I was expecting my 
test to fail but to run the teardown_func anyway.

In my test suite, the setup creates objects in the test database and the 
teardown removes these objects, so each test uses a clean db. On success 
every thing is fine, when a single test fail all the following ones also 
fail as the database is not clean and some uniqueness db constraints are 
violated.

Am I improperly using nose configuration or use ?

Thanks for any hint,

r.

-- 
Raphael Marvie
LIFL - Université Lille 1
+33 3 20 33 59 51