MagicStack
diff --git a/‎tests/test_tcp.py‎
Lines changed: 10 additions & 14 deletions b/‎tests/test_tcp.py‎
Lines changed: 10 additions & 14 deletions
@@ -260,25 +260,22 @@ def test_create_server_4(self):
         with sock:
             addr = sock.getsockname()
 
+            with self.assertRaises(OSError) as cm:
+                self.loop.run_until_complete(
+                    self.loop.create_server(object, *addr)
+                )
             if sys.platform == "win32":
-                with self.assertRaises(OSError) as cm:
-                    self.loop.run_until_complete(
-                        self.loop.create_server(object, *addr)
-                    )
                 self.assertEqual(
                     getattr(cm.exception, "winerror", None)
                     or cm.exception.errno,
                     10048,
                 )
             else:
-                with self.assertRaisesRegex(
-                    OSError,
+                self.assertRegex(
+                    str(cm.exception),
                     r"error while attempting.*\('127.*:"
                     r"( \[errno \d+\])? address( already)? in use",
-                ):
-                    self.loop.run_until_complete(
-                        self.loop.create_server(object, *addr)
-                    )
+                )
 
     def test_create_server_5(self):
         # Test that create_server sets the TCP_IPV6ONLY flag,
@@ -581,17 +578,16 @@ async def client():
             await self.wait_closed(writer)
 
         async def runner():
+            with self.assertRaises(OSError) as cm:
+                await client()
             if sys.platform == "win32":
-                with self.assertRaises(OSError) as cm:
-                    await client()
                 self.assertEqual(
                     getattr(cm.exception, "winerror", None)
                     or cm.exception.errno,
                     10038,
                 )
             else:
-                with self.assertRaisesRegex(OSError, "Bad file"):
-                    await client()
+                self.assertRegex(str(cm.exception), "Bad file")
 
         self.loop.run_until_complete(runner())