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-rw-r--r--Lib/test/test_argparse.py94
1 files changed, 93 insertions, 1 deletions
diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py
index 852991c77f..f4567096d8 100644
--- a/Lib/test/test_argparse.py
+++ b/Lib/test/test_argparse.py
@@ -4021,6 +4021,37 @@ class TestHelpSubparsersWithHelpOrdering(HelpTestCase):
'''
+
+class TestHelpMetavarTypeFormatter(HelpTestCase):
+ """"""
+
+ def custom_type(string):
+ return string
+
+ parser_signature = Sig(prog='PROG', description='description',
+ formatter_class=argparse.MetavarTypeHelpFormatter)
+ argument_signatures = [Sig('a', type=int),
+ Sig('-b', type=custom_type),
+ Sig('-c', type=float, metavar='SOME FLOAT')]
+ argument_group_signatures = []
+ usage = '''\
+ usage: PROG [-h] [-b custom_type] [-c SOME FLOAT] int
+ '''
+ help = usage + '''\
+
+ description
+
+ positional arguments:
+ int
+
+ optional arguments:
+ -h, --help show this help message and exit
+ -b custom_type
+ -c SOME FLOAT
+ '''
+ version = ''
+
+
# =====================================
# Optional/Positional constructor tests
# =====================================
@@ -4411,7 +4442,7 @@ class TestEncoding(TestCase):
def _test_module_encoding(self, path):
path, _ = os.path.splitext(path)
path += ".py"
- with codecs.open(path, 'r', 'utf8') as f:
+ with codecs.open(path, 'r', 'utf-8') as f:
f.read()
def test_argparse_module_encoding(self):
@@ -4453,6 +4484,67 @@ class TestArgumentTypeError(TestCase):
else:
self.fail()
+# =========================
+# MessageContentError tests
+# =========================
+
+class TestMessageContentError(TestCase):
+
+ def test_missing_argument_name_in_message(self):
+ parser = ErrorRaisingArgumentParser(prog='PROG', usage='')
+ parser.add_argument('req_pos', type=str)
+ parser.add_argument('-req_opt', type=int, required=True)
+ parser.add_argument('need_one', type=str, nargs='+')
+
+ with self.assertRaises(ArgumentParserError) as cm:
+ parser.parse_args([])
+ msg = str(cm.exception)
+ self.assertRegex(msg, 'req_pos')
+ self.assertRegex(msg, 'req_opt')
+ self.assertRegex(msg, 'need_one')
+ with self.assertRaises(ArgumentParserError) as cm:
+ parser.parse_args(['myXargument'])
+ msg = str(cm.exception)
+ self.assertNotIn(msg, 'req_pos')
+ self.assertRegex(msg, 'req_opt')
+ self.assertRegex(msg, 'need_one')
+ with self.assertRaises(ArgumentParserError) as cm:
+ parser.parse_args(['myXargument', '-req_opt=1'])
+ msg = str(cm.exception)
+ self.assertNotIn(msg, 'req_pos')
+ self.assertNotIn(msg, 'req_opt')
+ self.assertRegex(msg, 'need_one')
+
+ def test_optional_optional_not_in_message(self):
+ parser = ErrorRaisingArgumentParser(prog='PROG', usage='')
+ parser.add_argument('req_pos', type=str)
+ parser.add_argument('--req_opt', type=int, required=True)
+ parser.add_argument('--opt_opt', type=bool, nargs='?',
+ default=True)
+ with self.assertRaises(ArgumentParserError) as cm:
+ parser.parse_args([])
+ msg = str(cm.exception)
+ self.assertRegex(msg, 'req_pos')
+ self.assertRegex(msg, 'req_opt')
+ self.assertNotIn(msg, 'opt_opt')
+ with self.assertRaises(ArgumentParserError) as cm:
+ parser.parse_args(['--req_opt=1'])
+ msg = str(cm.exception)
+ self.assertRegex(msg, 'req_pos')
+ self.assertNotIn(msg, 'req_opt')
+ self.assertNotIn(msg, 'opt_opt')
+
+ def test_optional_positional_not_in_message(self):
+ parser = ErrorRaisingArgumentParser(prog='PROG', usage='')
+ parser.add_argument('req_pos')
+ parser.add_argument('optional_positional', nargs='?', default='eggs')
+ with self.assertRaises(ArgumentParserError) as cm:
+ parser.parse_args([])
+ msg = str(cm.exception)
+ self.assertRegex(msg, 'req_pos')
+ self.assertNotIn(msg, 'optional_positional')
+
+
# ======================
# parse_known_args tests
# ======================