def test_isa_equality():
assert isa(None, None)
assert isa(True, True)
assert isa(False, False)
assert isa(2, 2)
assert isa(1.0, 1.0)
assert isa("foo", "foo")
assert isa(u"foo", u"foo")
assert isa([], [])
assert isa(["foo"], ["foo"])
assert isa({}, {})
assert isa({"foo": "bar"}, {"foo": "bar"})
assert isa(set(), set())
def test_isa_type_inheritance():
# dicts
assert isa(dict, collections.Iterable)
assert isa(dict, collections.Sized)
assert isa(dict, collections.Container)
assert isa(dict, collections.Mapping)
assert isa(dict, collections.MutableMapping)
# lists
assert isa(list, collections.Iterable)
assert isa(list, collections.Sized)
assert isa(list, collections.Container)
assert isa(list, collections.Sequence)
assert isa(list, collections.MutableSequence)
# tuples
assert isa(tuple, collections.Sized)
assert isa(tuple, collections.Container)
assert isa(tuple, collections.Iterable)
assert isa(tuple, collections.Sequence)
# sets
assert isa(set, collections.Sized)
assert isa(set, collections.Container)
assert isa(set, collections.Iterable)
assert isa(set, collections.Set)
assert isa(set, collections.MutableSet)
def test_isa_instance():
# dicts
assert isa({}, dict)
assert isa({}, collections.Mapping)
assert isa({}, collections.MutableMapping)
assert isa({}, collections.Container)
assert isa({}, collections.Sized)
assert isa({}, collections.Iterable)
assert isa({}, object)
assert isa({"foo": "bar"}, dict)
assert isa({"foo": "bar"}, collections.Mapping)
assert isa({"foo": "bar"}, collections.MutableMapping)
assert isa({"foo": "bar"}, collections.Container)
assert isa({"foo": "bar"}, collections.Sized)
assert isa({"foo": "bar"}, collections.Iterable)
assert isa({"foo": "bar"}, object)
# lists
assert isa([], list)
assert isa([], collections.Iterable)
assert isa([], collections.Sized)
assert isa([], collections.Container)
assert isa([], collections.Sequence)
assert isa([], collections.MutableSequence)
assert isa([], object)
assert isa([1], list)
assert isa([1], collections.Iterable)
assert isa([1], collections.Sized)
assert isa([1], collections.Container)
assert isa([1], collections.Sequence)
assert isa([1], collections.MutableSequence)
assert isa([1], object)
# tuples
# sets
# strings
assert isa("", str)
assert isa("", basestring)
assert isa("", object)
assert isa("", collections.Iterable)
assert isa("", collections.Sized)
assert isa("", collections.Container)
assert isa("", collections.Sequence)
assert isa(u"", unicode)
assert isa(u"", basestring)
assert isa(u"", object)
assert isa(u"", collections.Iterable)
assert isa(u"", collections.Sized)
assert isa(u"", collections.Container)
assert isa(u"", collections.Sequence)
# numbers
assert isa(1, int)
assert isa(1, numbers.Integral)
assert isa(1, numbers.Number)
assert isa(1L, long)
assert isa(1L, numbers.Integral)
assert isa(1L, numbers.Number)
assert isa(1.0, float)
assert isa(1.0, numbers.Real)
assert isa(1.0, numbers.Number)