Python test_support.check_py3k_warnings函数代码示例

    def test_basic_proxy(self):
        o = C()
        self.check_proxy(o, weakref.proxy(o))

        L = UserList.UserList()
        p = weakref.proxy(L)
        self.assertFalse(p, "proxy for empty UserList should be false")
        p.append(12)
        self.assertEqual(len(L), 1)
        self.assertTrue(p, "proxy for non-empty UserList should be true")
        with test_support.check_py3k_warnings():
            p[:] = [2, 3]
        self.assertEqual(len(L), 2)
        self.assertEqual(len(p), 2)
        self.assertIn(3, p, "proxy didn't support __contains__() properly")
        p[1] = 5
        self.assertEqual(L[1], 5)
        self.assertEqual(p[1], 5)
        L2 = UserList.UserList(L)
        p2 = weakref.proxy(L2)
        self.assertEqual(p, p2)
        ## self.assertEqual(repr(L2), repr(p2))
        L3 = UserList.UserList(range(10))
        p3 = weakref.proxy(L3)
        with test_support.check_py3k_warnings():
            self.assertEqual(L3[:], p3[:])
            self.assertEqual(L3[5:], p3[5:])
            self.assertEqual(L3[:5], p3[:5])
            self.assertEqual(L3[2:5], p3[2:5])

    def test_valid_non_numeric_input_types_for_x(self):
        # Test possible valid non-numeric types for x, including subclasses
        # of the allowed built-in types.
        class CustomStr(str): pass
        class CustomByteArray(bytearray): pass
        factories = [str, bytearray, CustomStr, CustomByteArray, buffer]

        if have_unicode:
            class CustomUnicode(unicode): pass
            factories += [unicode, CustomUnicode]

        for f in factories:
            with test_support.check_py3k_warnings(quiet=True):
                x = f('100')
            msg = 'x has value %s and type %s' % (x, type(x).__name__)
            try:
                self.assertEqual(int(x), 100, msg=msg)
                if isinstance(x, basestring):
                    self.assertEqual(int(x, 2), 4, msg=msg)
            except TypeError, err:
                raise AssertionError('For %s got TypeError: %s' %
                                     (type(x).__name__, err))
            if not isinstance(x, basestring):
                errmsg = "can't convert non-string"
                with self.assertRaisesRegexp(TypeError, errmsg, msg=msg):
                    int(x, 2)
            errmsg = 'invalid literal'
            with self.assertRaisesRegexp(ValueError, errmsg, msg=msg), \
                 test_support.check_py3k_warnings(quiet=True):
                int(f('A' * 0x10))

 def test_softspace(self):
     expected = 'file.softspace not supported in 3.x'
     with file(__file__) as f:
         with check_py3k_warnings() as w:
             self.assertWarning(f.softspace, w, expected)
         def set():
             f.softspace = 0
         with check_py3k_warnings() as w:
             self.assertWarning(set(), w, expected)

 def test_multiplicative_ops(self):
     x = 1 * 1
     with check_py3k_warnings(('classic int division', DeprecationWarning)):
         x = 1 / 1
     x = 1 / 1.0
     x = 1 % 1
     with check_py3k_warnings(('classic int division', DeprecationWarning)):
         x = 1 / 1 * 1 % 1
     x = 1 / 1.0 * 1 % 1

    def test_et_hash(self):
        from _testcapi import getargs_et_hash
        self.assertEqual(getargs_et_hash('abc\xe9'), 'abc\xe9')
        self.assertEqual(getargs_et_hash(u'abc'), 'abc')
        self.assertEqual(getargs_et_hash('abc\xe9', 'ascii'), 'abc\xe9')
        self.assertEqual(getargs_et_hash(u'abc\xe9', 'latin1'), 'abc\xe9')
        self.assertRaises(UnicodeEncodeError, getargs_et_hash,
                          u'abc\xe9', 'ascii')
        self.assertRaises(LookupError, getargs_et_hash, u'abc', 'spam')
        self.assertRaises(TypeError, getargs_et_hash,
                          bytearray('bytearray'), 'latin1')
        self.assertRaises(TypeError, getargs_et_hash,
                          memoryview('memoryview'), 'latin1')
        with test_support.check_py3k_warnings():
            self.assertEqual(getargs_et_hash(buffer('abc'), 'ascii'), 'abc')
            self.assertEqual(getargs_et_hash(buffer(u'abc'), 'ascii'), 'abc')
        self.assertRaises(TypeError, getargs_et_hash, None, 'latin1')
        self.assertEqual(getargs_et_hash('nul:\0', 'latin1'), 'nul:\0')
        self.assertEqual(getargs_et_hash(u'nul:\0', 'latin1'), 'nul:\0')

        buf = bytearray('x'*8)
        self.assertEqual(getargs_et_hash(u'abc\xe9', 'latin1', buf), 'abc\xe9')
        self.assertEqual(buf, bytearray('abc\xe9\x00xxx'))
        buf = bytearray('x'*5)
        self.assertEqual(getargs_et_hash(u'abc\xe9', 'latin1', buf), 'abc\xe9')
        self.assertEqual(buf, bytearray('abc\xe9\x00'))
        buf = bytearray('x'*4)
        self.assertRaises(TypeError, getargs_et_hash, u'abc\xe9', 'latin1', buf)
        self.assertEqual(buf, bytearray('x'*4))
        buf = bytearray()
        self.assertRaises(TypeError, getargs_et_hash, u'abc\xe9', 'latin1', buf)

 def test_basics(self):
     c = Counter("abcaba")
     self.assertEqual(c, Counter({"a": 3, "b": 2, "c": 1}))
     self.assertEqual(c, Counter(a=3, b=2, c=1))
     self.assertIsInstance(c, dict)
     self.assertIsInstance(c, Mapping)
     self.assertTrue(issubclass(Counter, dict))
     self.assertTrue(issubclass(Counter, Mapping))
     self.assertEqual(len(c), 3)
     self.assertEqual(sum(c.values()), 6)
     self.assertEqual(sorted(c.values()), [1, 2, 3])
     self.assertEqual(sorted(c.keys()), ["a", "b", "c"])
     self.assertEqual(sorted(c), ["a", "b", "c"])
     self.assertEqual(sorted(c.items()), [("a", 3), ("b", 2), ("c", 1)])
     self.assertEqual(c["b"], 2)
     self.assertEqual(c["z"], 0)
     with test_support.check_py3k_warnings():
         self.assertEqual(c.has_key("c"), True)
         self.assertEqual(c.has_key("z"), False)
     self.assertEqual(c.__contains__("c"), True)
     self.assertEqual(c.__contains__("z"), False)
     self.assertEqual(c.get("b", 10), 2)
     self.assertEqual(c.get("z", 10), 10)
     self.assertEqual(c, dict(a=3, b=2, c=1))
     self.assertEqual(repr(c), "Counter({'a': 3, 'b': 2, 'c': 1})")
     self.assertEqual(c.most_common(), [("a", 3), ("b", 2), ("c", 1)])
     for i in range(5):
         self.assertEqual(c.most_common(i), [("a", 3), ("b", 2), ("c", 1)][:i])
     self.assertEqual("".join(sorted(c.elements())), "aaabbc")
     c["a"] += 1  # increment an existing value
     c["b"] -= 2  # sub existing value to zero
     del c["c"]  # remove an entry
     del c["c"]  # make sure that del doesn't raise KeyError
     c["d"] -= 2  # sub from a missing value
     c["e"] = -5  # directly assign a missing value
     c["f"] += 4  # add to a missing value
     self.assertEqual(c, dict(a=4, b=0, d=-2, e=-5, f=4))
     self.assertEqual("".join(sorted(c.elements())), "aaaaffff")
     self.assertEqual(c.pop("f"), 4)
     self.assertNotIn("f", c)
     for i in range(3):
         elem, cnt = c.popitem()
         self.assertNotIn(elem, c)
     c.clear()
     self.assertEqual(c, {})
     self.assertEqual(repr(c), "Counter()")
     self.assertRaises(NotImplementedError, Counter.fromkeys, "abc")
     self.assertRaises(TypeError, hash, c)
     c.update(dict(a=5, b=3))
     c.update(c=1)
     c.update(Counter("a" * 50 + "b" * 30))
     c.update()  # test case with no args
     c.__init__("a" * 500 + "b" * 300)
     c.__init__("cdc")
     c.__init__()
     self.assertEqual(c, dict(a=555, b=333, c=3, d=1))
     self.assertEqual(c.setdefault("d", 5), 1)
     self.assertEqual(c["d"], 1)
     self.assertEqual(c.setdefault("e", 5), 5)
     self.assertEqual(c["e"], 5)

    def setUp(self):
        self.con = sqlite.connect(":memory:")
        cur = self.con.cursor()
        cur.execute(
            """
            create table test(
                t text,
                i integer,
                f float,
                n,
                b blob
                )
            """
        )
        with test_support.check_py3k_warnings():
            cur.execute(
                "insert into test(t, i, f, n, b) values (?, ?, ?, ?, ?)", ("foo", 5, 3.14, None, buffer("blob"))
            )

        self.con.create_aggregate("nostep", 1, AggrNoStep)
        self.con.create_aggregate("nofinalize", 1, AggrNoFinalize)
        self.con.create_aggregate("excInit", 1, AggrExceptionInInit)
        self.con.create_aggregate("excStep", 1, AggrExceptionInStep)
        self.con.create_aggregate("excFinalize", 1, AggrExceptionInFinalize)
        self.con.create_aggregate("checkType", 2, AggrCheckType)
        self.con.create_aggregate("mysum", 1, AggrSum)

def test_main():
    with test_support.check_py3k_warnings(
        (".+__(get|set|del)slice__ has been removed", DeprecationWarning),
        ("classic int division", DeprecationWarning),
        ("<> not supported", DeprecationWarning),
    ):
        test_support.run_unittest(ClassTests)

 def CheckFuncReturnBlob(self):
     cur = self.con.cursor()
     cur.execute("select returnblob()")
     val = cur.fetchone()[0]
     with test_support.check_py3k_warnings():
         self.assertEqual(type(val), buffer)
         self.assertEqual(val, buffer("blob"))

def test_main():
    with check_py3k_warnings(("exceptions must derive from BaseException",
                              DeprecationWarning),
                             ("catching classes that don't inherit "
                              "from BaseException is not allowed",
                              DeprecationWarning)):
        run_unittest(OpcodeTest)

 def CheckBlob(self):
     with test_support.check_py3k_warnings():
         val = buffer("Guglhupf")
     self.cur.execute("insert into test(b) values (?)", (val,))
     self.cur.execute("select b from test")
     row = self.cur.fetchone()
     self.assertEqual(row[0], val)

    def testAttributes(self):
        # verify expected attributes exist
        f = self.f
        with test_support.check_py3k_warnings():
            softspace = f.softspace
        f.name     # merely shouldn't blow up
        f.mode     # ditto
        f.closed   # ditto

        with test_support.check_py3k_warnings():
            # verify softspace is writable
            f.softspace = softspace    # merely shouldn't blow up

        # verify the others aren't
        for attr in 'name', 'mode', 'closed':
            self.assertRaises((AttributeError, TypeError), setattr, f, attr, 'oops')

    def testComplexDefinitions(self):

        def makeReturner(*lst):
            def returner():
                return lst
            return returner

        self.assertEqual(makeReturner(1,2,3)(), (1,2,3))

        def makeReturner2(**kwargs):
            def returner():
                return kwargs
            return returner

        self.assertEqual(makeReturner2(a=11)()['a'], 11)

        with check_py3k_warnings(("tuple parameter unpacking has been removed",
                                  SyntaxWarning)):
            exec """\
def makeAddPair((a, b)):
    def addPair((c, d)):
        return (a + c, b + d)
    return addPair
""" in locals()
        self.assertEqual(makeAddPair((1, 2))((100, 200)), (101,202))

    def test_auto_overflow(self):
        special = [0, 1, 2, 3, sys.maxint-1, sys.maxint, sys.maxint+1]
        sqrt = int(math.sqrt(sys.maxint))
        special.extend([sqrt-1, sqrt, sqrt+1])
        special.extend([-i for i in special])

        def checkit(*args):
            # Heavy use of nested scopes here!
            self.assertEqual(got, expected,
                Frm("for %r expected %r got %r", args, expected, got))

        for x in special:
            longx = long(x)

            expected = -longx
            got = -x
            checkit('-', x)

            for y in special:
                longy = long(y)

                expected = longx + longy
                got = x + y
                checkit(x, '+', y)

                expected = longx - longy
                got = x - y
                checkit(x, '-', y)

                expected = longx * longy
                got = x * y
                checkit(x, '*', y)

                if y:
                    with test_support.check_py3k_warnings():
                        expected = longx / longy
                        got = x / y
                    checkit(x, '/', y)

                    expected = longx // longy
                    got = x // y
                    checkit(x, '//', y)

                    expected = divmod(longx, longy)
                    got = divmod(longx, longy)
                    checkit(x, 'divmod', y)

                if abs(y) < 5 and not (x == 0 and y < 0):
                    expected = longx ** longy
                    got = x ** y
                    checkit(x, '**', y)

                    for z in special:
                        if z != 0 :
                            if y >= 0:
                                expected = pow(longx, longy, long(z))
                                got = pow(x, y, z)
                                checkit('pow', x, y, '%', z)
                            else:
                                self.assertRaises(TypeError, pow,longx, longy, long(z))

    def testMethods(self):
        methods = ['fileno', 'flush', 'isatty', 'next', 'read', 'readinto',
                   'readline', 'readlines', 'seek', 'tell', 'truncate',
                   'write', '__iter__']
        deprecated_methods = ['xreadlines']
        if sys.platform.startswith('atheos'):
            methods.remove('truncate')

        # __exit__ should close the file
        self.f.__exit__(None, None, None)
        self.assertTrue(self.f.closed)

        for methodname in methods:
            method = getattr(self.f, methodname)
            args = {'readinto': (bytearray(''),),
                    'seek':     (0,),
                    'write':    ('',),
                    }.get(methodname, ())
            # should raise on closed file
            self.assertRaises(ValueError, method, *args)
        with test_support.check_py3k_warnings():
            for methodname in deprecated_methods:
                method = getattr(self.f, methodname)
                self.assertRaises(ValueError, method)
        self.assertRaises(ValueError, self.f.writelines, [])

        # file is closed, __exit__ shouldn't do anything
        self.assertEqual(self.f.__exit__(None, None, None), None)
        # it must also return None if an exception was given
        try:
            1 // 0
        except:
            self.assertEqual(self.f.__exit__(*sys.exc_info()), None)