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/Lib/test/test_structmembers.py

http://unladen-swallow.googlecode.com/
Python | 107 lines | 83 code | 22 blank | 2 comment | 2 complexity | 0e8d7a90c5e3a3363c2aa4a9aff6fcdb MD5 | raw file
  1from _testcapi import test_structmembersType, \
  2    CHAR_MAX, CHAR_MIN, UCHAR_MAX, \
  3    SHRT_MAX, SHRT_MIN, USHRT_MAX, \
  4    INT_MAX, INT_MIN, UINT_MAX, \
  5    LONG_MAX, LONG_MIN, ULONG_MAX, \
  6    LLONG_MAX, LLONG_MIN, ULLONG_MAX
  7
  8import warnings, exceptions, unittest, sys
  9from test import test_support
 10
 11ts=test_structmembersType(False, 1, 2, 3, 4, 5, 6, 7, 8,
 12                          9.99999, 10.1010101010)
 13
 14class ReadWriteTests(unittest.TestCase):
 15    def test_types(self):
 16        ts.T_BOOL = True
 17        self.assertEquals(ts.T_BOOL, True)
 18        ts.T_BOOL = False
 19        self.assertEquals(ts.T_BOOL, False)
 20        self.assertRaises(TypeError, setattr, ts, 'T_BOOL', 1)
 21
 22        ts.T_BYTE = CHAR_MAX
 23        self.assertEquals(ts.T_BYTE, CHAR_MAX)
 24        ts.T_BYTE = CHAR_MIN
 25        self.assertEquals(ts.T_BYTE, CHAR_MIN)
 26        ts.T_UBYTE = UCHAR_MAX
 27        self.assertEquals(ts.T_UBYTE, UCHAR_MAX)
 28
 29        ts.T_SHORT = SHRT_MAX
 30        self.assertEquals(ts.T_SHORT, SHRT_MAX)
 31        ts.T_SHORT = SHRT_MIN
 32        self.assertEquals(ts.T_SHORT, SHRT_MIN)
 33        ts.T_USHORT = USHRT_MAX
 34        self.assertEquals(ts.T_USHORT, USHRT_MAX)
 35
 36        ts.T_INT = INT_MAX
 37        self.assertEquals(ts.T_INT, INT_MAX)
 38        ts.T_INT = INT_MIN
 39        self.assertEquals(ts.T_INT, INT_MIN)
 40        ts.T_UINT = UINT_MAX
 41        self.assertEquals(ts.T_UINT, UINT_MAX)
 42
 43        ts.T_LONG = LONG_MAX
 44        self.assertEquals(ts.T_LONG, LONG_MAX)
 45        ts.T_LONG = LONG_MIN
 46        self.assertEquals(ts.T_LONG, LONG_MIN)
 47        ts.T_ULONG = ULONG_MAX
 48        self.assertEquals(ts.T_ULONG, ULONG_MAX)
 49
 50        ## T_LONGLONG and T_ULONGLONG may not be present on some platforms
 51        if hasattr(ts, 'T_LONGLONG'):
 52            ts.T_LONGLONG = LLONG_MAX
 53            self.assertEquals(ts.T_LONGLONG, LLONG_MAX)
 54            ts.T_LONGLONG = LLONG_MIN
 55            self.assertEquals(ts.T_LONGLONG, LLONG_MIN)
 56
 57            ts.T_ULONGLONG = ULLONG_MAX
 58            self.assertEquals(ts.T_ULONGLONG, ULLONG_MAX)
 59
 60            ## make sure these will accept a plain int as well as a long
 61            ts.T_LONGLONG = 3
 62            self.assertEquals(ts.T_LONGLONG, 3)
 63            ts.T_ULONGLONG = 4
 64            self.assertEquals(ts.T_ULONGLONG, 4)
 65
 66
 67class TestWarnings(unittest.TestCase):
 68    def has_warned(self, w):
 69        self.assertEqual(w.category, RuntimeWarning)
 70
 71    def test_byte_max(self):
 72        with test_support.check_warnings() as w:
 73            ts.T_BYTE = CHAR_MAX+1
 74            self.has_warned(w)
 75
 76    def test_byte_min(self):
 77        with test_support.check_warnings() as w:
 78            ts.T_BYTE = CHAR_MIN-1
 79            self.has_warned(w)
 80
 81    def test_ubyte_max(self):
 82        with test_support.check_warnings() as w:
 83            ts.T_UBYTE = UCHAR_MAX+1
 84            self.has_warned(w)
 85
 86    def test_short_max(self):
 87        with test_support.check_warnings() as w:
 88            ts.T_SHORT = SHRT_MAX+1
 89            self.has_warned(w)
 90
 91    def test_short_min(self):
 92        with test_support.check_warnings() as w:
 93            ts.T_SHORT = SHRT_MIN-1
 94            self.has_warned(w)
 95
 96    def test_ushort_max(self):
 97        with test_support.check_warnings() as w:
 98            ts.T_USHORT = USHRT_MAX+1
 99            self.has_warned(w)
100
101
102
103def test_main(verbose=None):
104    test_support.run_unittest(__name__)
105
106if __name__ == "__main__":
107    test_main(verbose=True)