Define a base class for testing the objects

minode/tests/test_objects.py

@@ -19,19 +19,14 @@ from minode import sql, shared, structure
 # + vectors_to_send
 
 
-class TestObjectsSQL(unittest.TestCase):
-    """A test case for the sqlite inventory"""
-
-    @classmethod
-    def setUpClass(cls):
-        shared.data_directory = tempfile.gettempdir()
-        cls.tearDownClass()
-        cls.objects = sql.Inventory()
-
-    @classmethod
-    def tearDownClass(cls):
-        cls.objects = None
-        os.remove(os.path.join(shared.data_directory, 'objects.dat'))
+class TestObjects():
+    """
+    A base class for the test case for shared.objects,
+    containing tests for all the methods directly used in code.
+    """
+    # pylint: disable=no-member
+    # A possibility of abstract test cases was rejected:
+    # https://bugs.python.org/issue17519
 
     def test_set_get(self):
         """Put some objects and check presence and getting"""
@@ -151,3 +146,18 @@ class TestObjectsSQL(unittest.TestCase):
             pending.add(obj.vector)
 
         self.assertEqual(self.objects.select(questionable), pending)
+
+
+class TestObjectsSQL(TestObjects, unittest.TestCase):
+    """A test case for the sqlite inventory"""
+
+    @classmethod
+    def setUpClass(cls):
+        shared.data_directory = tempfile.gettempdir()
+        cls.tearDownClass()
+        cls.objects = sql.Inventory()
+
+    @classmethod
+    def tearDownClass(cls):
+        cls.objects = None
+        os.remove(os.path.join(shared.data_directory, 'objects.dat'))