Check in test I missed checking in yesterday

sigh

src/ZODB/tests/test_TransactionMetaData.py

@@ -0,0 +1,95 @@
+##############################################################################
+#
+# Copyright (c) Zope Foundation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.0 (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
+import warnings
+
+from .._compat import dumps, loads, _protocol
+from ..Connection import TransactionMetaData
+
+class TransactionMetaDataTests(unittest.TestCase):
+
+    def test_basic(self):
+        t = TransactionMetaData(
+            u'user\x80', u'description\x80', dict(foo='FOO'))
+        self.assertEqual(t.user, b'user\xc2\x80')
+        self.assertEqual(t.description, b'description\xc2\x80')
+        self.assertEqual(t.extension, dict(foo='FOO'))
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always")
+            self.assertEqual(t._extension, t.extension)
+            self.assertEqual(len(w), 1)
+            self.assertTrue(issubclass(w[-1].category, DeprecationWarning))
+            self.assertTrue("_extension is deprecated" in str(w[-1].message))
+
+    def test_basic_no_encoding(self):
+        t = TransactionMetaData(
+            b'user', b'description', dumps(dict(foo='FOO'), _protocol))
+        self.assertEqual(t.user, b'user')
+        self.assertEqual(t.description, b'description')
+        self.assertEqual(t.extension, dict(foo='FOO'))
+        self.assertEqual(t._extension, t.extension)
+
+    def test_constructor_default_args(self):
+        t = TransactionMetaData()
+        self.assertEqual(t.user, b'')
+        self.assertEqual(t.description, b'')
+        self.assertEqual(t.extension, {})
+        self.assertEqual(t._extension, t.extension)
+
+    def test_set_extension(self):
+        t = TransactionMetaData(u'', u'', b'')
+        self.assertEqual(t.user, b'')
+        self.assertEqual(t.description, b'')
+        self.assertEqual(t.extension, {})
+        self.assertEqual(t._extension, t.extension)
+
+        for name in 'extension', '_extension':
+            data = {name: name + 'foo'}
+            setattr(t, name, data)
+            self.assertEqual(t.extension, data)
+            self.assertEqual(t._extension, t.extension)
+            data = {}
+            setattr(t, name, data)
+            self.assertEqual(t.extension, data)
+            self.assertEqual(t._extension, t.extension)
+
+    def test_used_by_connection(self):
+        import ZODB
+        from ZODB.MappingStorage import MappingStorage
+
+        class Storage(MappingStorage):
+            def tpc_begin(self, transaction):
+                self.test_transaction = transaction
+                return MappingStorage.tpc_begin(self, transaction)
+
+        storage = Storage()
+        conn = ZODB.connection(storage)
+        with conn.transaction_manager as t:
+            t.user = u'user\x80'
+            t.description = u'description\x80'
+            t.setExtendedInfo('foo', 'FOO')
+            conn.root.x = 1
+
+        t = storage.test_transaction
+        self.assertEqual(t.__class__, TransactionMetaData)
+        self.assertEqual(t.user, b'user\xc2\x80')
+        self.assertEqual(t.description, b'description\xc2\x80')
+        self.assertEqual(t.extension, dict(foo='FOO'))
+
+def test_suite():
+    return unittest.makeSuite(TransactionMetaDataTests)
+
+if __name__ == '__main__':
+    unittest.main(defaultTest='test_suite')
+