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import unittest
from test.support import import_helper
from test.support import warnings_helper
# Skip this test if the _testcapi module isn't available.
import_helper.import_module('_testcapi')
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, \
PY_SSIZE_T_MAX, PY_SSIZE_T_MIN
ts=_test_structmembersType(False, # T_BOOL
1, # T_BYTE
2, # T_UBYTE
3, # T_SHORT
4, # T_USHORT
5, # T_INT
6, # T_UINT
7, # T_LONG
8, # T_ULONG
23, # T_PYSSIZET
9.99999,# T_FLOAT
10.1010101010, # T_DOUBLE
"hi" # T_STRING_INPLACE
)
class ReadWriteTests(unittest.TestCase):
def test_bool(self):
ts.T_BOOL = True
self.assertEqual(ts.T_BOOL, True)
ts.T_BOOL = False
self.assertEqual(ts.T_BOOL, False)
self.assertRaises(TypeError, setattr, ts, 'T_BOOL', 1)
def test_byte(self):
ts.T_BYTE = CHAR_MAX
self.assertEqual(ts.T_BYTE, CHAR_MAX)
ts.T_BYTE = CHAR_MIN
self.assertEqual(ts.T_BYTE, CHAR_MIN)
ts.T_UBYTE = UCHAR_MAX
self.assertEqual(ts.T_UBYTE, UCHAR_MAX)
def test_short(self):
ts.T_SHORT = SHRT_MAX
self.assertEqual(ts.T_SHORT, SHRT_MAX)
ts.T_SHORT = SHRT_MIN
self.assertEqual(ts.T_SHORT, SHRT_MIN)
ts.T_USHORT = USHRT_MAX
self.assertEqual(ts.T_USHORT, USHRT_MAX)
def test_int(self):
ts.T_INT = INT_MAX
self.assertEqual(ts.T_INT, INT_MAX)
ts.T_INT = INT_MIN
self.assertEqual(ts.T_INT, INT_MIN)
ts.T_UINT = UINT_MAX
self.assertEqual(ts.T_UINT, UINT_MAX)
def test_long(self):
ts.T_LONG = LONG_MAX
self.assertEqual(ts.T_LONG, LONG_MAX)
ts.T_LONG = LONG_MIN
self.assertEqual(ts.T_LONG, LONG_MIN)
ts.T_ULONG = ULONG_MAX
self.assertEqual(ts.T_ULONG, ULONG_MAX)
def test_py_ssize_t(self):
ts.T_PYSSIZET = PY_SSIZE_T_MAX
self.assertEqual(ts.T_PYSSIZET, PY_SSIZE_T_MAX)
ts.T_PYSSIZET = PY_SSIZE_T_MIN
self.assertEqual(ts.T_PYSSIZET, PY_SSIZE_T_MIN)
@unittest.skipUnless(hasattr(ts, "T_LONGLONG"), "long long not present")
def test_longlong(self):
ts.T_LONGLONG = LLONG_MAX
self.assertEqual(ts.T_LONGLONG, LLONG_MAX)
ts.T_LONGLONG = LLONG_MIN
self.assertEqual(ts.T_LONGLONG, LLONG_MIN)
ts.T_ULONGLONG = ULLONG_MAX
self.assertEqual(ts.T_ULONGLONG, ULLONG_MAX)
## make sure these will accept a plain int as well as a long
ts.T_LONGLONG = 3
self.assertEqual(ts.T_LONGLONG, 3)
ts.T_ULONGLONG = 4
self.assertEqual(ts.T_ULONGLONG, 4)
def test_bad_assignments(self):
integer_attributes = [
'T_BOOL',
'T_BYTE', 'T_UBYTE',
'T_SHORT', 'T_USHORT',
'T_INT', 'T_UINT',
'T_LONG', 'T_ULONG',
'T_PYSSIZET'
]
if hasattr(ts, 'T_LONGLONG'):
integer_attributes.extend(['T_LONGLONG', 'T_ULONGLONG'])
# issue8014: this produced 'bad argument to internal function'
# internal error
for nonint in None, 3.2j, "full of eels", {}, []:
for attr in integer_attributes:
self.assertRaises(TypeError, setattr, ts, attr, nonint)
def test_inplace_string(self):
self.assertEqual(ts.T_STRING_INPLACE, "hi")
self.assertRaises(TypeError, setattr, ts, "T_STRING_INPLACE", "s")
self.assertRaises(TypeError, delattr, ts, "T_STRING_INPLACE")
class TestWarnings(unittest.TestCase):
def test_byte_max(self):
with warnings_helper.check_warnings(('', RuntimeWarning)):
ts.T_BYTE = CHAR_MAX+1
def test_byte_min(self):
with warnings_helper.check_warnings(('', RuntimeWarning)):
ts.T_BYTE = CHAR_MIN-1
def test_ubyte_max(self):
with warnings_helper.check_warnings(('', RuntimeWarning)):
ts.T_UBYTE = UCHAR_MAX+1
def test_short_max(self):
with warnings_helper.check_warnings(('', RuntimeWarning)):
ts.T_SHORT = SHRT_MAX+1
def test_short_min(self):
with warnings_helper.check_warnings(('', RuntimeWarning)):
ts.T_SHORT = SHRT_MIN-1
def test_ushort_max(self):
with warnings_helper.check_warnings(('', RuntimeWarning)):
ts.T_USHORT = USHRT_MAX+1
if __name__ == "__main__":
unittest.main()
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