Beginnigs of coverage for BTrees/___Bucket.py

BTrees/tests/test____BTree.py

+##############################################################################
+#
+# Copyright 2012 Zope Foundation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+import unittest
+
+
+class _BucketBaseTests(unittest.TestCase):
+
+    def _getTargetClass(self):
+        from BTrees.___BTree import _BucketBase
+        return _BucketBase
+
+    def _makeOne(self, *args, **kw):
+        return self._getTargetClass()(*args, **kw)
+
+    def test_ctor_defaults(self):
+        bucket = self._makeOne()
+        self.assertEqual(bucket._keys, [])
+        self.assertEqual(bucket._next, None)
+        self.assertEqual(bucket.size, 0)
+
+
+def test_suite():
+    return unittest.TestSuite((
+        unittest.makeSuite(_BucketBaseTests),
+    ))