cpython/Lib/test/test_structmembers.py

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from _testcapi import test_structmembersType, \
CHAR_MAX, CHAR_MIN, UCHAR_MAX, \
SHRT_MAX, SHRT_MIN, USHRT_MAX, \
INT_MAX, INT_MIN, UINT_MAX, \
LONG_MAX, LONG_MIN, ULONG_MAX, \
LLONG_MAX, LLONG_MIN, ULLONG_MAX
import warnings, exceptions, unittest, sys
from test import test_support
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ts=test_structmembersType(False, 1, 2, 3, 4, 5, 6, 7, 8,
9.99999, 10.1010101010)
class ReadWriteTests(unittest.TestCase):
def test_types(self):
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ts.T_BOOL = True
self.assertEquals(ts.T_BOOL, True)
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ts.T_BOOL = False
self.assertEquals(ts.T_BOOL, False)
self.assertRaises(TypeError, setattr, ts, 'T_BOOL', 1)
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ts.T_BYTE = CHAR_MAX
self.assertEquals(ts.T_BYTE, CHAR_MAX)
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ts.T_BYTE = CHAR_MIN
self.assertEquals(ts.T_BYTE, CHAR_MIN)
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ts.T_UBYTE = UCHAR_MAX
self.assertEquals(ts.T_UBYTE, UCHAR_MAX)
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ts.T_SHORT = SHRT_MAX
self.assertEquals(ts.T_SHORT, SHRT_MAX)
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ts.T_SHORT = SHRT_MIN
self.assertEquals(ts.T_SHORT, SHRT_MIN)
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ts.T_USHORT = USHRT_MAX
self.assertEquals(ts.T_USHORT, USHRT_MAX)
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ts.T_INT = INT_MAX
self.assertEquals(ts.T_INT, INT_MAX)
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ts.T_INT = INT_MIN
self.assertEquals(ts.T_INT, INT_MIN)
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ts.T_UINT = UINT_MAX
self.assertEquals(ts.T_UINT, UINT_MAX)
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ts.T_LONG = LONG_MAX
self.assertEquals(ts.T_LONG, LONG_MAX)
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ts.T_LONG = LONG_MIN
self.assertEquals(ts.T_LONG, LONG_MIN)
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ts.T_ULONG = ULONG_MAX
self.assertEquals(ts.T_ULONG, ULONG_MAX)
## T_LONGLONG and T_ULONGLONG may not be present on some platforms
if hasattr(ts, 'T_LONGLONG'):
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ts.T_LONGLONG = LLONG_MAX
self.assertEquals(ts.T_LONGLONG, LLONG_MAX)
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ts.T_LONGLONG = LLONG_MIN
self.assertEquals(ts.T_LONGLONG, LLONG_MIN)
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ts.T_ULONGLONG = ULLONG_MAX
self.assertEquals(ts.T_ULONGLONG, ULLONG_MAX)
## make sure these will accept a plain int as well as a long
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ts.T_LONGLONG = 3
self.assertEquals(ts.T_LONGLONG, 3)
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ts.T_ULONGLONG = 4
self.assertEquals(ts.T_ULONGLONG, 4)
class TestWarnings(unittest.TestCase):
def has_warned(self, w):
self.assertEqual(w.category, RuntimeWarning)
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def test_byte_max(self):
with test_support.check_warnings() as w:
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ts.T_BYTE = CHAR_MAX+1
self.has_warned(w)
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def test_byte_min(self):
with test_support.check_warnings() as w:
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ts.T_BYTE = CHAR_MIN-1
self.has_warned(w)
def test_ubyte_max(self):
with test_support.check_warnings() as w:
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ts.T_UBYTE = UCHAR_MAX+1
self.has_warned(w)
def test_short_max(self):
with test_support.check_warnings() as w:
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ts.T_SHORT = SHRT_MAX+1
self.has_warned(w)
def test_short_min(self):
with test_support.check_warnings() as w:
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ts.T_SHORT = SHRT_MIN-1
self.has_warned(w)
def test_ushort_max(self):
with test_support.check_warnings() as w:
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ts.T_USHORT = USHRT_MAX+1
self.has_warned(w)
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def test_main(verbose=None):
test_support.run_unittest(__name__)
if __name__ == "__main__":
test_main(verbose=True)