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[3.12] gh-106368: Increase Argument Clinic test coverage (GH-106369) (#106370)

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Add tests for 'self' and 'defining_class' converter requirements.
(cherry picked from commit 7f4c8121db)

Co-authored-by: Erlend E. Aasland <erlend@python.org>
This commit is contained in:
Miss Islington (bot) 2023-07-03 13:45:49 -07:00 • committed by GitHub
parent 887a7e6036
commit ddff4737bd
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1 changed files with 57 additions and 0 deletions
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57
Lib/test/test_clinic.py
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@ -829,6 +829,63 @@ def test_kwarg_splats_disallowed_in_function_call_annotations(self):
out = self.parse_function_should_fail(fn)
self.assertEqual(out, expected_error_msg)
def test_self_param_placement(self):
expected_error_msg = (
"Error on line 0:\n"
"A 'self' parameter, if specified, must be the very first thing "
"in the parameter block.\n"
)
block = """
module foo
foo.func
a: int
self: self(type="PyObject *")
"""
out = self.parse_function_should_fail(block)
self.assertEqual(out, expected_error_msg)
def test_self_param_cannot_be_optional(self):
expected_error_msg = (
"Error on line 0:\n"
"A 'self' parameter cannot be marked optional.\n"
)
block = """
module foo
foo.func
self: self(type="PyObject *") = None
"""
out = self.parse_function_should_fail(block)
self.assertEqual(out, expected_error_msg)
def test_defining_class_param_placement(self):
expected_error_msg = (
"Error on line 0:\n"
"A 'defining_class' parameter, if specified, must either be the "
"first thing in the parameter block, or come just after 'self'.\n"
)
block = """
module foo
foo.func
self: self(type="PyObject *")
a: int
cls: defining_class
"""
out = self.parse_function_should_fail(block)
self.assertEqual(out, expected_error_msg)
def test_defining_class_param_cannot_be_optional(self):
expected_error_msg = (
"Error on line 0:\n"
"A 'defining_class' parameter cannot be marked optional.\n"
)
block = """
module foo
foo.func
cls: defining_class(type="PyObject *") = None
"""
out = self.parse_function_should_fail(block)
self.assertEqual(out, expected_error_msg)
def test_unused_param(self):
block = self.parse("""
module foo