diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py
index 15ca1975..ccb7a69 100644
--- a/Lib/test/test_subprocess.py
+++ b/Lib/test/test_subprocess.py
@@ -872,12 +872,54 @@
         self.assertEqual([(256, 999), (666,), (666,)], record_calls)
 
 
+@unittest.skipUnless(mswindows, "mswindows only")
+class CommandsWithSpaces (BaseTestCase):
+
+    def setUp(self):
+        super(CommandsWithSpaces, self).setUp()
+        f, fname = mkstemp(".py", "te st")
+        self.fname = fname.lower ()
+        os.write(f, b"import sys;"
+                    b"sys.stdout.write('%d %s' % (len(sys.argv), [a.lower () for a in sys.argv]))"
+        )
+        os.close(f)
+
+    def tearDown(self):
+        os.remove(self.fname)
+        super(CommandsWithSpaces, self).tearDown()
+
+    def with_spaces(self, *args, **kwargs):
+        kwargs['stdout'] = subprocess.PIPE
+        p = subprocess.Popen(*args, **kwargs)
+        self.assertEqual(
+          p.stdout.read ().decode("mbcs"),
+          "2 [%r, 'ab cd']" % self.fname
+        )
+
+    def test_shell_string_with_spaces(self):
+        # call() function with string argument with spaces on Windows
+        self.with_spaces('"%s" "%s"' % (self.fname, "ab cd"), shell=1)
+
+    def test_shell_sequence_with_spaces(self):
+        # call() function with sequence argument with spaces on Windows
+        self.with_spaces([self.fname, "ab cd"], shell=1)
+
+    def test_noshell_string_with_spaces(self):
+        # call() function with string argument with spaces on Windows
+        self.with_spaces('"%s" "%s" "%s"' % (sys.executable, self.fname,
+                             "ab cd"))
+
+    def test_noshell_sequence_with_spaces(self):
+        # call() function with sequence argument with spaces on Windows
+        self.with_spaces([sys.executable, self.fname, "ab cd"])
+
 def test_main():
     unit_tests = (ProcessTestCase,
                   POSIXProcessTestCase,
                   Win32ProcessTestCase,
                   ProcessTestCaseNoPoll,
-                  HelperFunctionTests)
+                  HelperFunctionTests,
+                  CommandsWithSpaces)
 
     test_support.run_unittest(*unit_tests)
     test_support.reap_children()