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class AppTestBasic:
spaceconfig = dict(usemodules=['_collections'])
def test_ordereddict_present(self):
from _collections import OrderedDict
assert issubclass(OrderedDict, dict)
assert hasattr(OrderedDict, 'move_to_end')
def test_recursive_repr(self):
from _collections import OrderedDict
d = OrderedDict()
d[1] = d
assert repr(d) == 'OrderedDict([(1, ...)])'
def test_subclass(self):
from _collections import OrderedDict
class MyODict(OrderedDict):
def __setitem__(self, key, value):
super().__setitem__(key, 42)
d = MyODict(x=1)
assert d['x'] == 42
d.update({'y': 2})
assert d['y'] == 42
def test_reversed(self):
import sys
from _collections import OrderedDict
pairs = [('c', 1), ('b', 2), ('a', 3), ('d', 4), ('e', 5), ('f', 6)]
od = OrderedDict(pairs)
if '__pypy__' in sys.builtin_module_names:
# dict ordering is wrong when testing interpreted on top of CPython
pairs = list(dict(od).items())
assert list(reversed(od)) == [t[0] for t in reversed(pairs)]
assert list(reversed(od.keys())) == [t[0] for t in reversed(pairs)]
assert list(reversed(od.values())) == [t[1] for t in reversed(pairs)]
assert list(reversed(od.items())) == list(reversed(pairs))
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