Minimal configuration for pytest

Configure setup.cfg for pytest

python-ldap uses a non-standard configuration for tests.

Also, fix test class:
TestSubschemaUrlfetch must be a subclass of TestCase, not TestSuite.

https://github.com/python-ldap/python-ldap/pull/114
Signed-off-by: Christian Heimes <cheimes@redhat.com>

.gitignore

@@ -6,6 +6,7 @@ __pycache__/
 .tox
 .coverage*
 !.coveragerc
+/.cache
 
 # shared libs installed by 'setup.py test'
 /Lib/*.so*

Doc/contributing.rst

@@ -224,7 +224,7 @@ Run reference leak tests::
 
     $ cd path/to/python-ldap
     $ /tmp/refleak/bin/pip install --upgrade .
-    $ /tmp/refleak/bin/pytest -v -R: Tests/t_*.py
+    $ /tmp/refleak/bin/pytest -v -R:
 
 Run ``/tmp/refleak/bin/pip install --upgrade .`` every time a file outside
 of ``Tests/`` is modified.

Tests/t_ldap_schema_subentry.py

@@ -25,6 +25,7 @@
     os.path.join(HERE, 'data', 'subschema-openldap-all.ldif'),
 )
 
+
 class TestSubschemaLDIF(unittest.TestCase):
     """
     test ldap.schema.SubSchema with subschema subentries read from LDIF files
@@ -49,7 +50,7 @@ def test_subschema_file(self):
                     self.assertEqual(attributetype.oid, oid)
 
 
-class TestSubschemaUrlfetch(unittest.TestSuite):
+class TestSubschemaUrlfetch(unittest.TestCase):
     def test_urlfetch_file(self):
         freeipa_uri = 'file://{}'.format(TEST_SUBSCHEMA_FILES[0])
         dn, schema = ldap.schema.urlfetch(freeipa_uri)

setup.cfg

@@ -35,3 +35,11 @@ packager = python-ldap team
 distribution_name = openSUSE 11.x
 release = 1
 doc_files = CHANGES README INSTALL TODO Demo/
+
+# pytest, https://docs.pytest.org/en/latest/customize.html
+[tool:pytest]
+testpaths = Tests
+python_files = t_*.py
+filterwarnings =
+    error
+    ignore::ldap.LDAPBytesWarning