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# encoding: utf-8
import py
from pypy.interpreter import gateway
from pypy.objspace.test import test_descriptor
class AppTestUserObject:
spaceconfig = {}
def setup_class(cls):
cls.w_runappdirect = cls.space.wrap(cls.runappdirect)
def rand(space):
import random
return space.wrap(random.randrange(0, 5))
cls.w_rand = cls.space.wrap(gateway.interp2app(rand))
def test_emptyclass(self):
class empty(object): pass
inst = empty()
assert isinstance(inst, empty)
inst.attr = 23
assert inst.attr == 23
def test_method(self):
class A(object):
def f(self, v):
return v*42
a = A()
assert a.f('?') == '??????????????????????????????????????????'
def test_unboundmethod(self):
class A(object):
def f(self, v):
return v*17
a = A()
assert A.f(a, '!') == '!!!!!!!!!!!!!!!!!'
def test_subclassing(self):
for base in tuple, list, dict, str, int, float:
class subclass(base): pass
stuff = subclass()
assert isinstance(stuff, base)
assert subclass.__base__ is base
def test_subclasstuple(self):
class subclass(tuple): pass
stuff = subclass()
assert isinstance(stuff, tuple)
stuff.attr = 23
assert stuff.attr ==23
assert len(stuff) ==0
result = stuff + (1,2,3)
assert len(result) ==3
def test_subsubclass(self):
class base(object):
baseattr = 12
class derived(base):
derivedattr = 34
inst = derived()
assert isinstance(inst, base)
assert inst.baseattr ==12
assert inst.derivedattr ==34
def test_descr_get(self):
class C(object):
class desc(object):
def __get__(self, ob, cls=None):
return 42
prop = desc()
assert C().prop == 42
def test_descr_set(self):
class C(object):
class desc(object):
def __set__(self, ob, val):
ob.wibble = val
prop = desc()
c = C()
c.prop = 32
assert c.wibble == 32
def test_descr_delete(self):
class C(object):
class desc(object):
def __set__(self, ob, val):
oogabooga
def __delete__(self, ob):
ob.wibble = 22
prop = desc()
c = C()
del c.prop
assert c.wibble == 22
def test_class_setattr(self):
class C(object):
pass
C.a = 1
assert hasattr(C, 'a')
assert C.a == 1
def test_add(self):
class C(object):
def __add__(self, other):
return self, other
c1 = C()
assert c1+3 == (c1, 3)
def test_call(self):
class C(object):
def __call__(self, *args):
return args
c1 = C()
assert c1() == ()
assert c1(5) == (5,)
assert c1("hello", "world") == ("hello", "world")
def test_getattribute(self):
class C(object):
def __getattribute__(self, name):
return '->' + name
c1 = C()
assert c1.a == '->a'
c1.a = 5
assert c1.a == '->a'
def test_getattr(self):
class C(object):
def __getattr__(self, name):
return '->' + name
c1 = C()
assert c1.a == '->a'
c1.a = 5
assert c1.a == 5
def test_dict(self):
class A(object):
pass
class B(A):
pass
assert not '__dict__' in object.__dict__
assert '__dict__' in A.__dict__
assert not '__dict__' in B.__dict__
a = A()
a.x = 5
assert a.__dict__ == {'x': 5}
a.__dict__ = {'y': 6}
assert a.y == 6
assert not hasattr(a, 'x')
def test_del(self):
import gc
lst = []
class A(object):
def __del__(self):
lst.append(42)
A()
gc.collect()
assert lst == [42]
def test_del_exception(self):
import sys, gc
from io import StringIO
class A(object):
def __del__(self):
raise ValueError('foo bar')
prev = sys.stderr
try:
sys.stderr = StringIO()
A()
gc.collect()
res = sys.stderr.getvalue()
sys.stderr = StringIO()
A()
gc.collect()
res2 = sys.stderr.getvalue()
A.__del__ = lambda a, b, c: None # will get "not enough arguments"
sys.stderr = StringIO()
A()
gc.collect()
res3 = sys.stderr.getvalue()
finally:
sys.stderr = prev
def check_tb(x, traceback=True):
print('----\n%s----\n' % (x,))
assert x.startswith('Exception ignored in: <bound method ')
if traceback:
assert '>\nTraceback (most recent call last):\n File "' in x
assert " in __del__\n" in x
assert x.endswith("\nValueError: foo bar\n")
else:
assert 'Traceback' not in x
assert ' File' not in x
assert '>\nTypeError: <lambda>() missing 2 required pos' in x
check_tb(res)
check_tb(res2)
check_tb(res3, traceback=False)
def test_instance_overrides_meth(self):
class C(object):
def m(self):
return "class"
assert C().m() == 'class'
c = C()
c.m = lambda: "instance"
res = c.m()
assert res == "instance"
def test_override_builtin_methods(self):
class myint(int):
def __add__(self, other):
return 'add'
def __rsub__(self, other):
return 'rsub'
assert myint(3) + 5 == 'add'
assert 5 + myint(3) == 8
assert myint(3) - 5 == -2
assert 5 - myint(3) == 'rsub'
def test_repr(self):
class Foo(object):
pass
Foo.__module__ = 'a.b.c'
Foo.__qualname__ = 'd.Foo'
s = repr(Foo())
assert s.startswith('<a.b.c.d.Foo object at ')
def test_repr_nonascii(self):
Japan = type('日本', (), dict(__module__='日本国'))
s = repr(Japan())
assert s.startswith('<日本国.日本 object at ')
def test_del_attr(self):
class Foo(object):
def __init__(self):
self.x = 3
foo = Foo()
del foo.x
raises(AttributeError, "del foo.x")
class Foo:
def __init__(self):
self.x = 3
foo = Foo()
del foo.x
raises(AttributeError, "del foo.x")
def test_del_attr_class(self):
class Foo:
pass
raises(AttributeError, "del Foo.x")
def test_hash(self):
if not hasattr(self, 'runappdirect'):
skip("disabled")
if self.runappdirect:
total = 500000
def rand():
import random
return random.randrange(0, 5)
else:
total = 50
rand = self.rand
#
class A(object):
hash = None
tail = any = A()
tail.next = tail
i = 0
while i < total:
a = A()
a.next = tail.next
tail.next = a
for j in range(rand()):
any = any.next
if any.hash is None:
any.hash = hash(any)
else:
assert any.hash == hash(any)
i += 1
i = 0
while i < total:
if any.hash is not None:
assert any.hash == hash(any)
any = any.next
i += 1
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