Fixed #32047 -- Fixed call_command() crash if a constant option from required mutually exclusive group is passed in options.

2 files changed, 37 insertions, 2 deletions

diff --git a/tests/user_commands/management/commands/mutually_exclusive_required.py b/tests/user_commands/management/commands/mutually_exclusive_required.py
index e5df17edb0..3fbf514c4d 100644
--- a/tests/user_commands/management/commands/mutually_exclusive_required.py
+++ b/tests/user_commands/management/commands/mutually_exclusive_required.py
@@ -7,6 +7,13 @@ class Command(BaseCommand):
         group = parser.add_mutually_exclusive_group(required=True)
         group.add_argument('--foo-id', type=int, nargs='?', default=None)
         group.add_argument('--foo-name', type=str, nargs='?', default=None)
+        group.add_argument('--append_const', action='append_const', const=42)
+        group.add_argument('--const', action='store_const', const=31)
+        group.add_argument('--count', action='count')
+        group.add_argument('--flag_false', action='store_false')
+        group.add_argument('--flag_true', action='store_true')
 
     def handle(self, *args, **options):
-        self.stdout.write(','.join(options))
+        for option, value in options.items():
+            if value is not None:
+                self.stdout.write('%s=%s' % (option, value))
diff --git a/tests/user_commands/tests.py b/tests/user_commands/tests.py
index f0627e8ae7..fe61a23ccd 100644
--- a/tests/user_commands/tests.py
+++ b/tests/user_commands/tests.py
@@ -243,10 +243,38 @@ class CommandTests(SimpleTestCase):
         self.assertIn('foo_id', out.getvalue())
         management.call_command('mutually_exclusive_required', foo_name='foo', stdout=out)
         self.assertIn('foo_name', out.getvalue())
-        msg = 'Error: one of the arguments --foo-id --foo-name is required'
+        msg = (
+            'Error: one of the arguments --foo-id --foo-name --append_const '
+            '--const --count --flag_false --flag_true is required'
+        )
         with self.assertRaisesMessage(CommandError, msg):
             management.call_command('mutually_exclusive_required', stdout=out)
 
+    def test_mutually_exclusive_group_required_const_options(self):
+        tests = [
+            ('append_const', [42]),
+            ('const', 31),
+            ('count', 1),
+            ('flag_false', False),
+            ('flag_true', True),
+        ]
+        for arg, value in tests:
+            out = StringIO()
+            expected_output = '%s=%s' % (arg, value)
+            with self.subTest(arg=arg):
+                management.call_command(
+                    'mutually_exclusive_required',
+                    '--%s' % arg,
+                    stdout=out,
+                )
+                self.assertIn(expected_output, out.getvalue())
+                out.truncate(0)
+                management.call_command(
+                    'mutually_exclusive_required',
+                    **{arg: value, 'stdout': out},
+                )
+                self.assertIn(expected_output, out.getvalue())
+
     def test_subparser(self):
         out = StringIO()
         management.call_command('subparser', 'foo', 12, stdout=out)