Issue #21999: Handled empty strings correctly when in POSIX mode.
diff --git a/Lib/test/test_shlex.py b/Lib/test/test_shlex.py
index 6c35f49..ed74172 100644
--- a/Lib/test/test_shlex.py
+++ b/Lib/test/test_shlex.py
@@ -178,6 +178,19 @@
"%s: %s != %s" %
(self.data[i][0], l, self.data[i][1:]))
+ def testEmptyStringHandling(self):
+ """Test that parsing of empty strings is correctly handled."""
+ # see Issue #21999
+ expected = ['', ')', 'abc']
+
+ s = shlex.shlex("'')abc", posix=True)
+ slist = list(s)
+ self.assertEqual(slist, expected)
+ expected = ["''", ')', 'abc']
+ s = shlex.shlex("'')abc")
+ self.assertEqual(list(s), expected)
+
+
# Allow this test to be used with old shlex.py
if not getattr(shlex, "split", None):
for methname in dir(ShlexTest):