[3.10] bpo-43988: Add test.support.check_disallow_instantiation() (GH-25757) (GH-26885)



(cherry picked from commit 4f725261c6cf23d259e8fdc205e12b76ef4d2d31, fbff5387c3e1f3904420fa5a27738c6c5881305b, and 8cec740820fc875117bfa7b6bdb10202ebeb8fd5)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

Automerge-Triggered-By: GH:vstinner
diff --git a/Lib/sqlite3/test/dbapi.py b/Lib/sqlite3/test/dbapi.py
index 0716e65..a958d4d 100644
--- a/Lib/sqlite3/test/dbapi.py
+++ b/Lib/sqlite3/test/dbapi.py
@@ -25,6 +25,7 @@
 import sqlite3 as sqlite
 import sys
 
+from test.support import check_disallow_instantiation
 from test.support.os_helper import TESTFN, unlink
 
 
@@ -94,8 +95,7 @@ def test_shared_cache_deprecated(self):
 
     def test_disallow_instantiation(self):
         cx = sqlite.connect(":memory:")
-        tp = type(cx("select 1"))
-        self.assertRaises(TypeError, tp)
+        check_disallow_instantiation(self, type(cx("select 1")))
 
 
 class ConnectionTests(unittest.TestCase):