def test_source_sequence():
d = DictNamedTuple([('a', 42)], a=43, b=45)
assert list(d.keys()) == ['a', 'b']
assert d.a == 43
assert d['a'] == 43 and d['b'] == 45
def test_source_mapping():
d = DictNamedTuple({'a': 42}, a=43, b=45)
assert list(d.keys()) == ['a', 'b']
assert d.a == 43
assert d['a'] == 43 and d['b'] == 45
def test_missing():
d = DictNamedTuple(foo=42, bar='42')
with pytest.raises(KeyError):
d['buz']
with pytest.raises(AttributeError):
d.buz
def test_len():
d = DictNamedTuple(foo=42, bar='42')
assert len(d) == 2
def test_source_error():
with pytest.raises(TypeError):
DictNamedTuple(100, a=43, b=45)
def test_repr():
d = DictNamedTuple(foo=42, bar='42')
assert eval(repr(d)) == d
def test_setattr():
d1 = DictNamedTuple(foo=42, bar='42')
with pytest.raises(AttributeError):
d1.a = 100
def test_eq():
d1 = DictNamedTuple(foo=42, bar='42')
d2 = DictNamedTuple(foo=42, bar='42')
assert d1 == d2
assert d1 != "foo"