Added DateTime tests to testrunner

lib/python/DateTime/tests.py

 
 # To run these tests, use:
-#   python unittest.py DateTime.tests.suite
+#   python unittest.py DateTime.tests.test_suite
 
 import unittest
 from DateTime import DateTime
@@ -137,5 +137,5 @@ class DateTimeTests (unittest.TestCase):
         assert dt - dt1 == 3000000.0, (dt, dt1)
 
 
-def suite():
+def test_suite():
     return unittest.makeSuite(DateTimeTests)

utilities/testrunner.py

@@ -59,7 +59,6 @@ class TestRunner:
                 'test_explicit_acquisition.py': None,
                 'test_func_attr.py': None,
                 'test_method_hook.py': None,
-                'tests.py': None,
                 'test.py': None,
                 }