Python3 Migrate

venv/lib/python3.7/site-packages/tornado/test/windows_test.py

@@ -0,0 +1,24 @@
+import functools
+import os
+import socket
+import unittest
+
+from tornado.platform.auto import set_close_exec
+
+skipIfNonWindows = unittest.skipIf(os.name != "nt", "non-windows platform")
+
+
+@skipIfNonWindows
+class WindowsTest(unittest.TestCase):
+    def test_set_close_exec(self):
+        # set_close_exec works with sockets.
+        s = socket.socket()
+        self.addCleanup(s.close)
+        set_close_exec(s.fileno())
+
+        # But it doesn't work with pipes.
+        r, w = os.pipe()
+        self.addCleanup(functools.partial(os.close, r))
+        self.addCleanup(functools.partial(os.close, w))
+        with self.assertRaises(WindowsError):
+            set_close_exec(r)