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-rw-r--r--Lib/unittest/mock.py3
-rw-r--r--Lib/unittest/test/testmock/testmock.py5
2 files changed, 5 insertions, 3 deletions
diff --git a/Lib/unittest/mock.py b/Lib/unittest/mock.py
index 1e8057d..47ed06c 100644
--- a/Lib/unittest/mock.py
+++ b/Lib/unittest/mock.py
@@ -572,7 +572,8 @@ class NonCallableMock(Base):
raise AttributeError(name)
if not self._mock_unsafe:
if name.startswith(('assert', 'assret')):
- raise AttributeError(name)
+ raise AttributeError("Attributes cannot start with 'assert' "
+ "or 'assret'")
result = self._mock_children.get(name)
if result is _deleted:
diff --git a/Lib/unittest/test/testmock/testmock.py b/Lib/unittest/test/testmock/testmock.py
index 5f917dd..b20b8e2 100644
--- a/Lib/unittest/test/testmock/testmock.py
+++ b/Lib/unittest/test/testmock/testmock.py
@@ -1453,9 +1453,10 @@ class MockTest(unittest.TestCase):
#Issue21238
def test_mock_unsafe(self):
m = Mock()
- with self.assertRaises(AttributeError):
+ msg = "Attributes cannot start with 'assert' or 'assret'"
+ with self.assertRaisesRegex(AttributeError, msg):
m.assert_foo_call()
- with self.assertRaises(AttributeError):
+ with self.assertRaisesRegex(AttributeError, msg):
m.assret_foo_call()
m = Mock(unsafe=True)
m.assert_foo_call()