try enabling test_recv_fds_peek on macOS

Author: GalaxySnail

Lib/test/test_socket.py

@@ -7395,7 +7395,9 @@ def test_send_recv_fds_with_addrs(self):
         self._test_pipe(fds[0], wfd, MSG)
 
     @requireAttrs(socket, "MSG_PEEK")
-    @unittest.skipUnless(sys.platform in ("linux", "android"), "works on Linux")
+    @unittest.skipUnless(sys.platform in ("linux", "android", "darwin"),
+                         "MSG_PEEK with SCM_RIGHTS not known to work on this "
+                         "platform")
     def test_recv_fds_peek(self):
         rfd, wfd = os.pipe()
         self.addCleanup(os.close, rfd)
@@ -7408,7 +7410,7 @@ def test_recv_fds_peek(self):
 
             # peek message on sock2
             peek_len = len(MSG) // 2
-            msg, fds, flags, addr = socket.recv_fds(sock2, peek_len, 1,
+            msg, fds, flags, addr = socket.recv_fds(sock2, peek_len, 2,
                                                     flags=socket.MSG_PEEK)
             self._cleanup_fds(fds)
 
@@ -7421,7 +7423,7 @@ def test_recv_fds_peek(self):
             self._test_pipe(fds[0], wfd, MSG)
 
             # will raise BlockingIOError if MSG_PEEK didn't work
-            msg, fds, flags, addr = socket.recv_fds(sock2, len(MSG), 1)
+            msg, fds, flags, addr = socket.recv_fds(sock2, len(MSG), 2)
             self._cleanup_fds(fds)
 
             self.assertEqual(msg, MSG)