Replace test setuptools command by unittest discover

issue9215
review389851002

tests/__init__.py

@@ -1,9 +1,2 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
-
-try:
-    from trytond.modules.account_eu.tests.test_account_eu import suite
-except ImportError:
-    from .test_account_eu import suite
-
-__all__ = ['suite']

tests/test_module.py

@@ -1,11 +1,8 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
 
-import unittest
-
 from trytond.modules.company.tests import CompanyTestMixin
 from trytond.tests.test_tryton import ModuleTestCase
-from trytond.tests.test_tryton import suite as test_suite
 
 
 class AccountEuTestCase(CompanyTestMixin, ModuleTestCase):
@@ -13,8 +10,4 @@ class AccountEuTestCase(CompanyTestMixin, ModuleTestCase):
     module = 'account_eu'
 
 
-def suite():
-    suite = test_suite()
-    suite.addTests(unittest.TestLoader().loadTestsFromTestCase(
-            AccountEuTestCase))
-    return suite
+del ModuleTestCase