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Merged
merged 16 commits into from
Jan 9, 2024
Merged

gh-103092: Test _ctypes type hierarchy and features #113727

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1d95bbc
add inheritance hierarchy and other tests for ctypes base types
aisk Jan 4, 2024
6df089c
add tests for cfuncptr
aisk Jan 5, 2024
81802ae
add tests for CField
aisk Jan 5, 2024
a8b4d32
add test for COMError
aisk Jan 6, 2024
e48efc3
add support.py to export ctypes hidden types
aisk Jan 8, 2024
0cd6f88
change to check the type's mutablility by type.__flags__
aisk Jan 8, 2024
b031cc9
fix assert in support.py
aisk Jan 8, 2024
1e7c064
change more test to check the type.__flags__
aisk Jan 8, 2024
d843763
Update Lib/test/test_ctypes/support.py
aisk Jan 9, 2024
8636250
rename type flag symbol name
aisk Jan 9, 2024
6a0676c
move CField to support.py
aisk Jan 9, 2024
37aecd4
test the type flags with sub test
aisk Jan 9, 2024
3ccb964
rename support.py to _support.py to avoid ambiguous when import
aisk Jan 9, 2024
0ac92f0
align the import statement
aisk Jan 9, 2024
efd0d9f
Update Lib/test/test_ctypes/test_arrays.py
aisk Jan 9, 2024
2660e86
refactor the type flags check
aisk Jan 9, 2024
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test the type flags with sub test
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@aisk
aisk committed Jan 9, 2024
commit 37aecd4853e6ffba68c616c6583fa3ecb7554ac9
10 changes: 6 additions & 4 deletions Lib/test/test_ctypes/test_arrays.py
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Original file line number Diff line number Diff line change
Expand Up @@ -32,11 +32,13 @@ def test_inheritance_hierarchy(self):
self.assertEqual(type(PyCArrayType), type)

def test_type_flags(self):
self.assertTrue(Array.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(Array.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=Array):
self.assertTrue(Array.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(Array.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

self.assertTrue(PyCArrayType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCArrayType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=PyCArrayType):
self.assertTrue(PyCArrayType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCArrayType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

def test_simple(self):
# create classes holding simple numeric types, and check
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10 changes: 6 additions & 4 deletions Lib/test/test_ctypes/test_funcptr.py
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Expand Up @@ -24,11 +24,13 @@ def test_inheritance_hierarchy(self):
self.assertEqual(type(PyCFuncPtrType), type)

def test_type_flags(self):
self.assertTrue(_CFuncPtr.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(_CFuncPtr.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=_CFuncPtr):
self.assertTrue(_CFuncPtr.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(_CFuncPtr.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

self.assertTrue(PyCFuncPtrType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCFuncPtrType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=PyCFuncPtrType):
self.assertTrue(PyCFuncPtrType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCFuncPtrType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

def test_basic(self):
X = WINFUNCTYPE(c_int, c_int, c_int)
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10 changes: 6 additions & 4 deletions Lib/test/test_ctypes/test_pointers.py
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Expand Up @@ -28,11 +28,13 @@ def test_inheritance_hierarchy(self):
self.assertEqual(type(PyCPointerType), type)

def test_type_flags(self):
self.assertTrue(_Pointer.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(_Pointer.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=_Pointer):
self.assertTrue(_Pointer.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(_Pointer.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

self.assertTrue(PyCPointerType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCPointerType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=PyCPointerType):
self.assertTrue(PyCPointerType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCPointerType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

def test_pointer_crash(self):

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10 changes: 6 additions & 4 deletions Lib/test/test_ctypes/test_simplesubclasses.py
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Expand Up @@ -21,11 +21,13 @@ def test_inheritance_hierarchy(self):
self.assertEqual(c_int.mro(), [c_int, _SimpleCData, _CData, object])

def test_type_flags(self):
self.assertTrue(_SimpleCData.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(_SimpleCData.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=_SimpleCData):
self.assertTrue(_SimpleCData.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(_SimpleCData.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

self.assertTrue(PyCSimpleType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCSimpleType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=PyCSimpleType):
self.assertTrue(PyCSimpleType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCSimpleType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

def test_compare(self):
self.assertEqual(MyInt(3), MyInt(3))
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10 changes: 6 additions & 4 deletions Lib/test/test_ctypes/test_structures.py
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Expand Up @@ -80,11 +80,13 @@ def test_inheritance_hierarchy(self):


def test_type_flags(self):
self.assertTrue(Structure.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(Structure.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=Structure):
self.assertTrue(Structure.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(Structure.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

self.assertTrue(PyCStructType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCStructType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=PyCStructType):
self.assertTrue(PyCStructType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(PyCStructType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

def test_simple_structs(self):
for code, tp in self.formats.items():
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10 changes: 6 additions & 4 deletions Lib/test/test_ctypes/test_unions.py
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Expand Up @@ -12,8 +12,10 @@ def test_inheritance_hierarchy(self):
self.assertEqual(type(UnionType), type)

def test_type_flags(self):
self.assertTrue(Union.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(Union.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=Union):
self.assertTrue(Union.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(Union.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)

self.assertTrue(UnionType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(UnionType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)
with self.subTest(cls=UnionType):
self.assertTrue(UnionType.__flags__ & Py_TPFLAGS_IMMUTABLETYPE)
self.assertFalse(UnionType.__flags__ & Py_TPFLAGS_DISALLOW_INSTANTIATION)