Fix bug 9352 where characters were being lost in parsing some short options
diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py
index 358179b..30302e9 100644
--- a/Lib/test/test_argparse.py
+++ b/Lib/test/test_argparse.py
@@ -465,6 +465,30 @@
('/ba +f', NS(f=True, bar=None, baz=42))
]
+
+class TestOptionalsAlternatePrefixCharsMultipleShortArgs(ParserTestCase):
+ """Verify that Optionals must be called with their defined prefixes"""
+
+ parser_signature = Sig(prefix_chars='+-', add_help=False)
+ argument_signatures = [
+ Sig('-x', action='store_true'),
+ Sig('+y', action='store_true'),
+ Sig('+z', action='store_true'),
+ ]
+ failures = ['-w',
+ '-xyz',
+ '+x',
+ '-y',
+ '+xyz',
+ ]
+ successes = [
+ ('', NS(x=False, y=False, z=False)),
+ ('-x', NS(x=True, y=False, z=False)),
+ ('+y -x', NS(x=True, y=True, z=False)),
+ ('+yz -x', NS(x=True, y=True, z=True)),
+ ]
+
+
class TestOptionalsShortLong(ParserTestCase):
"""Test a combination of single- and double-dash option strings"""