bpo-44229: Ignore spurious EPROTOTYPE on macOS in test_ssl (GH-26893)

Erlend Egeberg Aasland · web-flow · commit b5a52eef6799 · 2021-06-24T13:05:42.000+01:00
diff --git a/Lib/test/test_ssl.py b/Lib/test/test_ssl.py
@@ -2443,9 +2443,14 @@ def wrap_conn(self):
                 self.server.conn_errors.append(str(e))
                 if self.server.chatty:
                     handle_error("\n server:  bad connection attempt from " + repr(self.addr) + ":\n")
-                self.running = False
-                self.server.stop()
-                self.close()
+
+                # bpo-44229, bpo-43855, bpo-44237, and bpo-33450:
+                # Ignore spurious EPROTOTYPE returned by write() on macOS.
+                # See also http://erickt.github.io/blog/2014/11/19/adventures-in-debugging-a-potential-osx-kernel-bug/
+                if e.errno != errno.EPROTOTYPE and sys.platform != "darwin":
+                    self.running = False
+                    self.server.stop()
+                    self.close()
                 return False
             else:
                 self.server.shared_ciphers.append(self.sslconn.shared_ciphers())
