[Tutor] Test code organization

[Willi Richert]

Hi,

for some time I try to find the best test code organization. I've come 
up with the following solution, which I guess is not optimal. Please 
comment.

In the code directory there is a special tests directory, which contains 
all the unit test files. There is the file alltests.py which collects 
all python test files and executes them:

=====================================
import sys, unittest
sys.path.append(".")
sys.path.append("..")

TEST_DIR = "tests"

import glob
testCases = [t.split(".")[0] for t in glob.glob1(TEST_DIR, "*Tests.py")]
print "Found test case modules "+", ".join(testCases)
print

for t in testCases:
        exec("from %s import %s"%(TEST_DIR, t))

def suite():
    exec("suites = tuple([x.suite() for x in [%s]])"%str(", 
".join(testCases)))
    suite = unittest.TestSuite(suites)
    return suite


if __name__ == '__main__':
        suite = suite()
        result = unittest.TextTestRunner(verbosity=2).run(suite)
        if result.wasSuccessful():
                sys.exit(0)
        else:
                sys.exit(1)
======================================


For every class to test I create a ClassTests.py file which contains the 
following code:
Header:
======================================
import sys
sys.path.append("..")

import unittest
from Class... import *
======================================

The footer parses the available test classes:
======================================
def _testclasses():
    mod = sys.modules[__name__]
    return [getattr(mod, name) for name in dir(mod) if 
name.endswith('TestCase')]

def suite():
        return unittest.TestSuite([unittest.makeSuite(tc) for tc in 
_testclasses()])

if __name__ == '__main__':
                unittest.main()
======================================


What smalls badly is the sys.path.append() stuff every test file must 
have. Improvements?

Thanks for any comment,
wr