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Suppress DeprecationWarnings and prints when running tests #131

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Merged
JelleZijlstra merged 2 commits into from
Apr 9, 2023
Merged

Suppress DeprecationWarnings and prints when running tests #131

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80784b3
Suppress DeprecationWarnings and `print`s when running tests
AlexWaygood Apr 9, 2023
455326b
Update src/test_typing_extensions.py
AlexWaygood Apr 9, 2023
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30 changes: 22 additions & 8 deletions src/test_typing_extensions.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
import sys
import os
import abc
import io
import contextlib
import collections
from collections import defaultdict
Expand Down Expand Up @@ -62,6 +63,13 @@ def assertNotIsSubclass(self, cls, class_or_tuple, msg=None):
message += f' : {msg}'
raise self.failureException(message)

@contextlib.contextmanager
def assertWarnsIf(self, condition: bool, expected_warning: Type[Warning]):
with contextlib.ExitStack() as stack:
if condition:
stack.enter_context(self.assertWarns(expected_warning))
yield


class Employee:
pass
Expand Down Expand Up @@ -238,8 +246,9 @@ class A:

with self.assertWarnsRegex(DeprecationWarning, "A will go away soon"):
A()
with self.assertRaises(TypeError):
A(42)
with self.assertWarnsRegex(DeprecationWarning, "A will go away soon"):
with self.assertRaises(TypeError):
A(42)

@deprecated("HasInit will go away soon")
class HasInit:
Expand Down Expand Up @@ -1959,7 +1968,8 @@ def test_basics_iterable_syntax(self):
self.assertEqual(Emp.__total__, True)

def test_basics_keywords_syntax(self):
Emp = TypedDict('Emp', name=str, id=int)
with self.assertWarnsIf(sys.version_info >= (3, 11), DeprecationWarning):
Emp = TypedDict('Emp', name=str, id=int)
self.assertIsSubclass(Emp, dict)
self.assertIsSubclass(Emp, typing.MutableMapping)
self.assertNotIsSubclass(Emp, collections.abc.Sequence)
Expand All @@ -1974,8 +1984,9 @@ def test_basics_keywords_syntax(self):
self.assertEqual(Emp.__total__, True)

def test_typeddict_special_keyword_names(self):
TD = TypedDict("TD", cls=type, self=object, typename=str, _typename=int,
fields=list, _fields=dict)
with self.assertWarnsIf(sys.version_info >= (3, 11), DeprecationWarning):
TD = TypedDict("TD", cls=type, self=object, typename=str, _typename=int,
fields=list, _fields=dict)
self.assertEqual(TD.__name__, 'TD')
self.assertEqual(TD.__annotations__, {'cls': type, 'self': object, 'typename': str,
'_typename': int, 'fields': list, '_fields': dict})
Expand Down Expand Up @@ -2044,7 +2055,7 @@ def test_py36_class_syntax_usage(self):

def test_pickle(self):
global EmpD # pickle wants to reference the class by name
EmpD = TypedDict('EmpD', name=str, id=int)
EmpD = TypedDict('EmpD', {"name": str, "id": int})
jane = EmpD({'name': 'jane', 'id': 37})
point = Point2DGeneric(a=5.0, b=3.0)
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
Expand All @@ -2066,7 +2077,7 @@ def test_pickle(self):
self.assertEqual(Point2DGenericNew({'a': 5.0, 'b': 3.0}), point)

def test_optional(self):
EmpD = TypedDict('EmpD', name=str, id=int)
EmpD = TypedDict('EmpD', {"name": str, "id": int})

self.assertEqual(typing.Optional[EmpD], typing.Union[None, EmpD])
self.assertNotEqual(typing.List[EmpD], typing.Tuple[EmpD])
Expand Down Expand Up @@ -3134,7 +3145,10 @@ def cached(self): ...
class RevealTypeTests(BaseTestCase):
def test_reveal_type(self):
obj = object()
self.assertIs(obj, reveal_type(obj))

with contextlib.redirect_stderr(io.StringIO()) as stderr:
self.assertIs(obj, reveal_type(obj))
self.assertEqual("Runtime type is 'object'", stderr.getvalue().strip())


class DataclassTransformTests(BaseTestCase):
Expand Down