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gh-106368: Harden Argument Clinic parser tests (#106384)

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Erlend E. Aasland 2023-07-04 01:10:47 +02:00 • committed by GitHub
parent 2e92edbf6d
commit 648688c137
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1 changed files with 68 additions and 42 deletions
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110
Lib/test/test_clinic.py
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@ -643,7 +643,7 @@ class ClinicParserTest(TestCase):
self.assertEqual(out, expected_msg)
def test_disallowed_grouping__two_top_groups_on_right(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.two_top_groups_on_right
param: int
@ -654,9 +654,14 @@ class ClinicParserTest(TestCase):
group2 : int
]
""")
msg = (
"Function two_top_groups_on_right has an unsupported group "
"configuration. (Unexpected state 6.b)"
)
self.assertIn(msg, out)
def test_disallowed_grouping__parameter_after_group_on_right(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.parameter_after_group_on_right
param: int
@ -667,9 +672,14 @@ class ClinicParserTest(TestCase):
group2 : int
]
""")
msg = (
"Function parameter_after_group_on_right has an unsupported group "
"configuration. (Unexpected state 6.a)"
)
self.assertIn(msg, out)
def test_disallowed_grouping__group_after_parameter_on_left(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.group_after_parameter_on_left
[
@ -680,9 +690,14 @@ class ClinicParserTest(TestCase):
]
param: int
""")
msg = (
"Function group_after_parameter_on_left has an unsupported group "
"configuration. (Unexpected state 2.b)"
)
self.assertIn(msg, out)
def test_disallowed_grouping__empty_group_on_left(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.empty_group
[
@ -692,9 +707,14 @@ class ClinicParserTest(TestCase):
]
param: int
""")
msg = (
"Function empty_group has an empty group.\n"
"All groups must contain at least one parameter."
)
self.assertIn(msg, out)
def test_disallowed_grouping__empty_group_on_right(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.empty_group
param: int
@ -704,6 +724,11 @@ class ClinicParserTest(TestCase):
group2 : int
]
""")
msg = (
"Function empty_group has an empty group.\n"
"All groups must contain at least one parameter."
)
self.assertIn(msg, out)
def test_no_parameters(self):
function = self.parse_function("""
@ -732,69 +757,60 @@ class ClinicParserTest(TestCase):
self.assertEqual(1, len(function.parameters))
def test_illegal_module_line(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.bar => int
/
""")
msg = "Illegal function name: foo.bar => int"
self.assertIn(msg, out)
def test_illegal_c_basename(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.bar as 935
/
""")
msg = "Illegal C basename: 935"
self.assertIn(msg, out)
def test_single_star(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.bar
*
*
""")
self.assertIn("Function bar uses '*' more than once.", out)
def test_parameters_required_after_star_without_initial_parameters_or_docstring(self):
self.parse_function_should_fail("""
module foo
foo.bar
*
""")
def test_parameters_required_after_star_without_initial_parameters_with_docstring(self):
self.parse_function_should_fail("""
module foo
foo.bar
*
Docstring here.
""")
def test_parameters_required_after_star_with_initial_parameters_without_docstring(self):
self.parse_function_should_fail("""
module foo
foo.bar
this: int
*
""")
def test_parameters_required_after_star_with_initial_parameters_and_docstring(self):
self.parse_function_should_fail("""
module foo
foo.bar
this: int
*
Docstring.
""")
def test_parameters_required_after_star(self):
dataset = (
"module foo\nfoo.bar\n *",
"module foo\nfoo.bar\n *\nDocstring here.",
"module foo\nfoo.bar\n this: int\n *",
"module foo\nfoo.bar\n this: int\n *\nDocstring.",
)
msg = "Function bar specifies '*' without any parameters afterwards."
for block in dataset:
with self.subTest(block=block):
out = self.parse_function_should_fail(block)
self.assertIn(msg, out)
def test_single_slash(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.bar
/
/
""")
msg = (
"Function bar has an unsupported group configuration. "
"(Unexpected state 0.d)"
)
self.assertIn(msg, out)
def test_mix_star_and_slash(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.bar
x: int
@ -803,14 +819,24 @@ class ClinicParserTest(TestCase):
z: int
/
""")
msg = (
"Function bar mixes keyword-only and positional-only parameters, "
"which is unsupported."
)
self.assertIn(msg, out)
def test_parameters_not_permitted_after_slash_for_now(self):
self.parse_function_should_fail("""
out = self.parse_function_should_fail("""
module foo
foo.bar
/
x: int
""")
msg = (
"Function bar has an unsupported group configuration. "
"(Unexpected state 0.d)"
)
self.assertIn(msg, out)
def test_parameters_no_more_than_one_vararg(self):
expected_msg = (