mirror of
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312 lines
11 KiB
Python
312 lines
11 KiB
Python
import unittest
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from test import support
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from _testcapi import getargs_keywords
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import warnings
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warnings.filterwarnings("ignore",
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category=DeprecationWarning,
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message=".*integer argument expected, got float",
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module=__name__)
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warnings.filterwarnings("ignore",
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category=DeprecationWarning,
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message=".*integer argument expected, got float",
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module="unittest")
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"""
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> How about the following counterproposal. This also changes some of
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> the other format codes to be a little more regular.
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>
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> Code C type Range check
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>
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> b unsigned char 0..UCHAR_MAX
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> h signed short SHRT_MIN..SHRT_MAX
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> B unsigned char none **
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> H unsigned short none **
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> k * unsigned long none
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> I * unsigned int 0..UINT_MAX
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> i int INT_MIN..INT_MAX
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> l long LONG_MIN..LONG_MAX
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> K * unsigned long long none
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> L long long LLONG_MIN..LLONG_MAX
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> Notes:
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>
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> * New format codes.
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>
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> ** Changed from previous "range-and-a-half" to "none"; the
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> range-and-a-half checking wasn't particularly useful.
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Plus a C API or two, e.g. PyInt_AsLongMask() ->
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unsigned long and PyInt_AsLongLongMask() -> unsigned
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long long (if that exists).
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"""
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LARGE = 0x7FFFFFFF
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VERY_LARGE = 0xFF0000121212121212121242
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from _testcapi import UCHAR_MAX, USHRT_MAX, UINT_MAX, ULONG_MAX, INT_MAX, \
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INT_MIN, LONG_MIN, LONG_MAX, PY_SSIZE_T_MIN, PY_SSIZE_T_MAX
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# fake, they are not defined in Python's header files
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LLONG_MAX = 2**63-1
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LLONG_MIN = -2**63
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ULLONG_MAX = 2**64-1
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class Long:
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def __int__(self):
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return 99
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class Int:
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def __int__(self):
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return 99
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class Unsigned_TestCase(unittest.TestCase):
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def test_b(self):
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from _testcapi import getargs_b
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# b returns 'unsigned char', and does range checking (0 ... UCHAR_MAX)
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self.assertRaises(TypeError, getargs_b, 3.14)
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self.failUnlessEqual(99, getargs_b(Long()))
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self.failUnlessEqual(99, getargs_b(Int()))
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self.assertRaises(OverflowError, getargs_b, -1)
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self.failUnlessEqual(0, getargs_b(0))
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self.failUnlessEqual(UCHAR_MAX, getargs_b(UCHAR_MAX))
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self.assertRaises(OverflowError, getargs_b, UCHAR_MAX + 1)
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self.failUnlessEqual(42, getargs_b(42))
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self.failUnlessEqual(42, getargs_b(42))
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self.assertRaises(OverflowError, getargs_b, VERY_LARGE)
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def test_B(self):
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from _testcapi import getargs_B
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# B returns 'unsigned char', no range checking
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self.assertRaises(TypeError, getargs_B, 3.14)
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self.failUnlessEqual(99, getargs_B(Long()))
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self.failUnlessEqual(99, getargs_B(Int()))
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self.failUnlessEqual(UCHAR_MAX, getargs_B(-1))
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self.failUnlessEqual(UCHAR_MAX, getargs_B(-1))
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self.failUnlessEqual(0, getargs_B(0))
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self.failUnlessEqual(UCHAR_MAX, getargs_B(UCHAR_MAX))
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self.failUnlessEqual(0, getargs_B(UCHAR_MAX+1))
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self.failUnlessEqual(42, getargs_B(42))
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self.failUnlessEqual(42, getargs_B(42))
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self.failUnlessEqual(UCHAR_MAX & VERY_LARGE, getargs_B(VERY_LARGE))
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def test_H(self):
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from _testcapi import getargs_H
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# H returns 'unsigned short', no range checking
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self.assertRaises(TypeError, getargs_H, 3.14)
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self.failUnlessEqual(99, getargs_H(Long()))
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self.failUnlessEqual(99, getargs_H(Int()))
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self.failUnlessEqual(USHRT_MAX, getargs_H(-1))
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self.failUnlessEqual(0, getargs_H(0))
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self.failUnlessEqual(USHRT_MAX, getargs_H(USHRT_MAX))
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self.failUnlessEqual(0, getargs_H(USHRT_MAX+1))
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self.failUnlessEqual(42, getargs_H(42))
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self.failUnlessEqual(42, getargs_H(42))
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self.failUnlessEqual(VERY_LARGE & USHRT_MAX, getargs_H(VERY_LARGE))
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def test_I(self):
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from _testcapi import getargs_I
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# I returns 'unsigned int', no range checking
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self.assertRaises(TypeError, getargs_I, 3.14)
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self.failUnlessEqual(99, getargs_I(Long()))
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self.failUnlessEqual(99, getargs_I(Int()))
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self.failUnlessEqual(UINT_MAX, getargs_I(-1))
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self.failUnlessEqual(0, getargs_I(0))
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self.failUnlessEqual(UINT_MAX, getargs_I(UINT_MAX))
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self.failUnlessEqual(0, getargs_I(UINT_MAX+1))
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self.failUnlessEqual(42, getargs_I(42))
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self.failUnlessEqual(42, getargs_I(42))
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self.failUnlessEqual(VERY_LARGE & UINT_MAX, getargs_I(VERY_LARGE))
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def test_k(self):
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from _testcapi import getargs_k
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# k returns 'unsigned long', no range checking
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# it does not accept float, or instances with __int__
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self.assertRaises(TypeError, getargs_k, 3.14)
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self.assertRaises(TypeError, getargs_k, Long())
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self.assertRaises(TypeError, getargs_k, Int())
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self.failUnlessEqual(ULONG_MAX, getargs_k(-1))
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self.failUnlessEqual(0, getargs_k(0))
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self.failUnlessEqual(ULONG_MAX, getargs_k(ULONG_MAX))
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self.failUnlessEqual(0, getargs_k(ULONG_MAX+1))
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self.failUnlessEqual(42, getargs_k(42))
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self.failUnlessEqual(42, getargs_k(42))
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self.failUnlessEqual(VERY_LARGE & ULONG_MAX, getargs_k(VERY_LARGE))
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class Signed_TestCase(unittest.TestCase):
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def test_i(self):
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from _testcapi import getargs_i
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# i returns 'int', and does range checking (INT_MIN ... INT_MAX)
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self.assertRaises(TypeError, getargs_i, 3.14)
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self.failUnlessEqual(99, getargs_i(Long()))
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self.failUnlessEqual(99, getargs_i(Int()))
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self.assertRaises(OverflowError, getargs_i, INT_MIN-1)
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self.failUnlessEqual(INT_MIN, getargs_i(INT_MIN))
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self.failUnlessEqual(INT_MAX, getargs_i(INT_MAX))
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self.assertRaises(OverflowError, getargs_i, INT_MAX+1)
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self.failUnlessEqual(42, getargs_i(42))
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self.failUnlessEqual(42, getargs_i(42))
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self.assertRaises(OverflowError, getargs_i, VERY_LARGE)
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def test_l(self):
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from _testcapi import getargs_l
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# l returns 'long', and does range checking (LONG_MIN ... LONG_MAX)
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self.assertRaises(TypeError, getargs_l, 3.14)
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self.failUnlessEqual(99, getargs_l(Long()))
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self.failUnlessEqual(99, getargs_l(Int()))
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self.assertRaises(OverflowError, getargs_l, LONG_MIN-1)
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self.failUnlessEqual(LONG_MIN, getargs_l(LONG_MIN))
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self.failUnlessEqual(LONG_MAX, getargs_l(LONG_MAX))
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self.assertRaises(OverflowError, getargs_l, LONG_MAX+1)
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self.failUnlessEqual(42, getargs_l(42))
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self.failUnlessEqual(42, getargs_l(42))
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self.assertRaises(OverflowError, getargs_l, VERY_LARGE)
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def test_n(self):
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from _testcapi import getargs_n
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# n returns 'Py_ssize_t', and does range checking
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# (PY_SSIZE_T_MIN ... PY_SSIZE_T_MAX)
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self.assertRaises(TypeError, getargs_n, 3.14)
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self.assertRaises(TypeError, getargs_n, Long())
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self.assertRaises(TypeError, getargs_n, Int())
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self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MIN-1)
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self.failUnlessEqual(PY_SSIZE_T_MIN, getargs_n(PY_SSIZE_T_MIN))
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self.failUnlessEqual(PY_SSIZE_T_MAX, getargs_n(PY_SSIZE_T_MAX))
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self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MAX+1)
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self.failUnlessEqual(42, getargs_n(42))
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self.failUnlessEqual(42, getargs_n(42))
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self.assertRaises(OverflowError, getargs_n, VERY_LARGE)
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class LongLong_TestCase(unittest.TestCase):
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def test_L(self):
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from _testcapi import getargs_L
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# L returns 'long long', and does range checking (LLONG_MIN ... LLONG_MAX)
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self.failUnlessRaises(TypeError, getargs_L, "Hello")
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self.failUnlessEqual(3, getargs_L(3.14))
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self.failUnlessEqual(99, getargs_L(Long()))
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self.failUnlessEqual(99, getargs_L(Int()))
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self.assertRaises(OverflowError, getargs_L, LLONG_MIN-1)
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self.failUnlessEqual(LLONG_MIN, getargs_L(LLONG_MIN))
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self.failUnlessEqual(LLONG_MAX, getargs_L(LLONG_MAX))
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self.assertRaises(OverflowError, getargs_L, LLONG_MAX+1)
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self.failUnlessEqual(42, getargs_L(42))
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self.failUnlessEqual(42, getargs_L(42))
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self.assertRaises(OverflowError, getargs_L, VERY_LARGE)
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def test_K(self):
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from _testcapi import getargs_K
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# K return 'unsigned long long', no range checking
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self.assertRaises(TypeError, getargs_K, 3.14)
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self.assertRaises(TypeError, getargs_K, Long())
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self.assertRaises(TypeError, getargs_K, Int())
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self.failUnlessEqual(ULLONG_MAX, getargs_K(ULLONG_MAX))
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self.failUnlessEqual(0, getargs_K(0))
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self.failUnlessEqual(0, getargs_K(ULLONG_MAX+1))
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self.failUnlessEqual(42, getargs_K(42))
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self.failUnlessEqual(42, getargs_K(42))
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self.failUnlessEqual(VERY_LARGE & ULLONG_MAX, getargs_K(VERY_LARGE))
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class Tuple_TestCase(unittest.TestCase):
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def test_tuple(self):
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from _testcapi import getargs_tuple
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ret = getargs_tuple(1, (2, 3))
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self.assertEquals(ret, (1,2,3))
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# make sure invalid tuple arguments are handled correctly
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class seq:
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def __len__(self):
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return 2
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def __getitem__(self, n):
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raise ValueError
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self.assertRaises(TypeError, getargs_tuple, 1, seq())
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class Keywords_TestCase(unittest.TestCase):
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def test_positional_args(self):
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# using all positional args
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self.assertEquals(
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getargs_keywords((1,2), 3, (4,(5,6)), (7,8,9), 10),
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(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
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)
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def test_mixed_args(self):
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# positional and keyword args
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self.assertEquals(
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getargs_keywords((1,2), 3, (4,(5,6)), arg4=(7,8,9), arg5=10),
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(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
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)
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def test_keyword_args(self):
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# all keywords
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self.assertEquals(
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getargs_keywords(arg1=(1,2), arg2=3, arg3=(4,(5,6)), arg4=(7,8,9), arg5=10),
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(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
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)
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def test_optional_args(self):
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# missing optional keyword args, skipping tuples
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self.assertEquals(
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getargs_keywords(arg1=(1,2), arg2=3, arg5=10),
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(1, 2, 3, -1, -1, -1, -1, -1, -1, 10)
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)
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def test_required_args(self):
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# required arg missing
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try:
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getargs_keywords(arg1=(1,2))
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except TypeError as err:
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self.assertEquals(str(err), "Required argument 'arg2' (pos 2) not found")
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else:
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self.fail('TypeError should have been raised')
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def test_too_many_args(self):
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try:
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getargs_keywords((1,2),3,(4,(5,6)),(7,8,9),10,111)
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except TypeError as err:
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self.assertEquals(str(err), "function takes at most 5 arguments (6 given)")
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else:
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self.fail('TypeError should have been raised')
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def test_invalid_keyword(self):
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# extraneous keyword arg
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try:
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getargs_keywords((1,2),3,arg5=10,arg666=666)
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except TypeError as err:
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self.assertEquals(str(err), "'arg666' is an invalid keyword argument for this function")
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else:
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self.fail('TypeError should have been raised')
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def test_main():
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tests = [Signed_TestCase, Unsigned_TestCase, Tuple_TestCase, Keywords_TestCase]
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try:
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from _testcapi import getargs_L, getargs_K
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except ImportError:
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pass # PY_LONG_LONG not available
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else:
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tests.append(LongLong_TestCase)
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support.run_unittest(*tests)
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if __name__ == "__main__":
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test_main()
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