2 files changed, 37 insertions, 0 deletions
diff --git a/Lib/test/test_unittest/test_case.py b/Lib/test/test_unittest/test_case.py
index d66cab146af..cf10e956bf2 100644
--- a/Lib/test/test_unittest/test_case.py
+++ b/Lib/test/test_unittest/test_case.py
@@ -1920,6 +1920,22 @@ test case
             with self.assertLogs():
                 raise ZeroDivisionError("Unexpected")
 
+    def testAssertLogsWithFormatter(self):
+        # Check alternative formats will be respected
+        format = "[No.1: the larch] %(levelname)s:%(name)s:%(message)s"
+        formatter = logging.Formatter(format)
+        with self.assertNoStderr():
+            with self.assertLogs() as cm:
+                log_foo.info("1")
+                log_foobar.debug("2")
+            self.assertEqual(cm.output, ["INFO:foo:1"])
+            self.assertLogRecords(cm.records, [{'name': 'foo'}])
+            with self.assertLogs(formatter=formatter) as cm:
+                log_foo.info("1")
+                log_foobar.debug("2")
+            self.assertEqual(cm.output, ["[No.1: the larch] INFO:foo:1"])
+            self.assertLogRecords(cm.records, [{'name': 'foo'}])
+
     def testAssertNoLogsDefault(self):
         with self.assertRaises(self.failureException) as cm:
             with self.assertNoLogs():
diff --git a/Lib/test/test_unittest/testmock/testhelpers.py b/Lib/test/test_unittest/testmock/testhelpers.py
index d1e48bde982..0e82c723ec3 100644
--- a/Lib/test/test_unittest/testmock/testhelpers.py
+++ b/Lib/test/test_unittest/testmock/testhelpers.py
@@ -1050,6 +1050,7 @@ class SpecSignatureTest(unittest.TestCase):
             create_autospec(WithPostInit()),
         ]:
             with self.subTest(mock=mock):
+                self.assertIsInstance(mock, WithPostInit)
                 self.assertIsInstance(mock.a, int)
                 self.assertIsInstance(mock.b, int)
 
@@ -1072,6 +1073,7 @@ class SpecSignatureTest(unittest.TestCase):
             create_autospec(WithDefault(1)),
         ]:
             with self.subTest(mock=mock):
+                self.assertIsInstance(mock, WithDefault)
                 self.assertIsInstance(mock.a, int)
                 self.assertIsInstance(mock.b, int)
 
@@ -1087,6 +1089,7 @@ class SpecSignatureTest(unittest.TestCase):
             create_autospec(WithMethod(1)),
         ]:
             with self.subTest(mock=mock):
+                self.assertIsInstance(mock, WithMethod)
                 self.assertIsInstance(mock.a, int)
                 mock.b.assert_not_called()
 
@@ -1102,11 +1105,29 @@ class SpecSignatureTest(unittest.TestCase):
             create_autospec(WithNonFields(1)),
         ]:
             with self.subTest(mock=mock):
+                self.assertIsInstance(mock, WithNonFields)
                 with self.assertRaisesRegex(AttributeError, msg):
                     mock.a
                 with self.assertRaisesRegex(AttributeError, msg):
                     mock.b
 
+    def test_dataclass_special_attrs(self):
+        @dataclass
+        class Description:
+            name: str
+
+        for mock in [
+            create_autospec(Description, instance=True),
+            create_autospec(Description(1)),
+        ]:
+            with self.subTest(mock=mock):
+                self.assertIsInstance(mock, Description)
+                self.assertIs(mock.__class__, Description)
+                self.assertIsInstance(mock.__dataclass_fields__, MagicMock)
+                self.assertIsInstance(mock.__dataclass_params__, MagicMock)
+                self.assertIsInstance(mock.__match_args__, MagicMock)
+                self.assertIsInstance(mock.__hash__, MagicMock)
+
 class TestCallList(unittest.TestCase):
 
     def test_args_list_contains_call_list(self):