EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.2 / Lib / test / test_hash.py

# test the invariant that\r
#   iff a==b then hash(a)==hash(b)\r
#\r
# Also test that hash implementations are inherited as expected\r
\r
import unittest\r
from test import test_support\r
from collections import Hashable\r
\r
\r
class HashEqualityTestCase(unittest.TestCase):\r
\r
    def same_hash(self, *objlist):\r
        # Hash each object given and fail if\r
        # the hash values are not all the same.\r
        hashed = map(hash, objlist)\r
        for h in hashed[1:]:\r
            if h != hashed[0]:\r
                self.fail("hashed values differ: %r" % (objlist,))\r
\r
    def test_numeric_literals(self):\r
        self.same_hash(1, 1L, 1.0, 1.0+0.0j)\r
        self.same_hash(0, 0L, 0.0, 0.0+0.0j)\r
        self.same_hash(-1, -1L, -1.0, -1.0+0.0j)\r
        self.same_hash(-2, -2L, -2.0, -2.0+0.0j)\r
\r
    def test_coerced_integers(self):\r
        self.same_hash(int(1), long(1), float(1), complex(1),\r
                       int('1'), float('1.0'))\r
        self.same_hash(int(-2**31), long(-2**31), float(-2**31))\r
        self.same_hash(int(1-2**31), long(1-2**31), float(1-2**31))\r
        self.same_hash(int(2**31-1), long(2**31-1), float(2**31-1))\r
        # for 64-bit platforms\r
        self.same_hash(int(2**31), long(2**31), float(2**31))\r
        self.same_hash(int(-2**63), long(-2**63), float(-2**63))\r
        self.same_hash(int(1-2**63), long(1-2**63))\r
        self.same_hash(int(2**63-1), long(2**63-1))\r
        self.same_hash(long(2**63), float(2**63))\r
\r
    def test_coerced_floats(self):\r
        self.same_hash(long(1.23e300), float(1.23e300))\r
        self.same_hash(float(0.5), complex(0.5, 0.0))\r
\r
\r
_default_hash = object.__hash__\r
class DefaultHash(object): pass\r
\r
_FIXED_HASH_VALUE = 42\r
class FixedHash(object):\r
    def __hash__(self):\r
        return _FIXED_HASH_VALUE\r
\r
class OnlyEquality(object):\r
    def __eq__(self, other):\r
        return self is other\r
    # Trick to suppress Py3k warning in 2.x\r
    __hash__ = None\r
del OnlyEquality.__hash__\r
\r
class OnlyInequality(object):\r
    def __ne__(self, other):\r
        return self is not other\r
\r
class OnlyCmp(object):\r
    def __cmp__(self, other):\r
        return cmp(id(self), id(other))\r
    # Trick to suppress Py3k warning in 2.x\r
    __hash__ = None\r
del OnlyCmp.__hash__\r
\r
class InheritedHashWithEquality(FixedHash, OnlyEquality): pass\r
class InheritedHashWithInequality(FixedHash, OnlyInequality): pass\r
class InheritedHashWithCmp(FixedHash, OnlyCmp): pass\r
\r
class NoHash(object):\r
    __hash__ = None\r
\r
class HashInheritanceTestCase(unittest.TestCase):\r
    default_expected = [object(),\r
                        DefaultHash(),\r
                        OnlyEquality(),\r
                        OnlyInequality(),\r
                        OnlyCmp(),\r
                       ]\r
    fixed_expected = [FixedHash(),\r
                      InheritedHashWithEquality(),\r
                      InheritedHashWithInequality(),\r
                      InheritedHashWithCmp(),\r
                      ]\r
    error_expected = [NoHash()]\r
\r
    def test_default_hash(self):\r
        for obj in self.default_expected:\r
            self.assertEqual(hash(obj), _default_hash(obj))\r
\r
    def test_fixed_hash(self):\r
        for obj in self.fixed_expected:\r
            self.assertEqual(hash(obj), _FIXED_HASH_VALUE)\r
\r
    def test_error_hash(self):\r
        for obj in self.error_expected:\r
            self.assertRaises(TypeError, hash, obj)\r
\r
    def test_hashable(self):\r
        objects = (self.default_expected +\r
                   self.fixed_expected)\r
        for obj in objects:\r
            self.assertIsInstance(obj, Hashable)\r
\r
    def test_not_hashable(self):\r
        for obj in self.error_expected:\r
            self.assertNotIsInstance(obj, Hashable)\r
\r
\r
# Issue #4701: Check that some builtin types are correctly hashable\r
#  (This test only used to fail in Python 3.0, but has been included\r
#   in 2.x along with the lazy call to PyType_Ready in PyObject_Hash)\r
class DefaultIterSeq(object):\r
    seq = range(10)\r
    def __len__(self):\r
        return len(self.seq)\r
    def __getitem__(self, index):\r
        return self.seq[index]\r
\r
class HashBuiltinsTestCase(unittest.TestCase):\r
    hashes_to_check = [xrange(10),\r
                       enumerate(xrange(10)),\r
                       iter(DefaultIterSeq()),\r
                       iter(lambda: 0, 0),\r
                      ]\r
\r
    def test_hashes(self):\r
        _default_hash = object.__hash__\r
        for obj in self.hashes_to_check:\r
            self.assertEqual(hash(obj), _default_hash(obj))\r
\r
def test_main():\r
    test_support.run_unittest(HashEqualityTestCase,\r
                              HashInheritanceTestCase,\r
                              HashBuiltinsTestCase)\r
\r
\r
if __name__ == "__main__":\r
    test_main()\r