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Diffstat (limited to 'Lib/test/test_argparse.py')
| -rw-r--r-- | Lib/test/test_argparse.py | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index d6d16090eb..86ec6cca51 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -2813,6 +2813,46 @@ class TestMutuallyExclusiveOptionalsAndPositionalsMixed(MEMixin, TestCase): -c c help ''' +class TestMutuallyExclusiveNested(MEMixin, TestCase): + + def get_parser(self, required): + parser = ErrorRaisingArgumentParser(prog='PROG') + group = parser.add_mutually_exclusive_group(required=required) + group.add_argument('-a') + group.add_argument('-b') + group2 = group.add_mutually_exclusive_group(required=required) + group2.add_argument('-c') + group2.add_argument('-d') + group3 = group2.add_mutually_exclusive_group(required=required) + group3.add_argument('-e') + group3.add_argument('-f') + return parser + + usage_when_not_required = '''\ + usage: PROG [-h] [-a A | -b B | [-c C | -d D | [-e E | -f F]]] + ''' + usage_when_required = '''\ + usage: PROG [-h] (-a A | -b B | (-c C | -d D | (-e E | -f F))) + ''' + + help = '''\ + + optional arguments: + -h, --help show this help message and exit + -a A + -b B + -c C + -d D + -e E + -f F + ''' + + # We are only interested in testing the behavior of format_usage(). + test_failures_when_not_required = None + test_failures_when_required = None + test_successes_when_not_required = None + test_successes_when_required = None + # ================================================= # Mutually exclusive group in parent parser tests # ================================================= |