def test_property_with_none_value():
"""Test None as property."""
g = Traversel()
g.property(a=1, b=None)
assert str(g) == "g.property('a', 1)"
def test_add_with_typed_properties():
"""Test add with typed property."""
g = Traversel('g')
g.property(foo=1, bar="1", jazz=1.1)
assert str(g) == "g.property('foo', 1).property('bar', '1').property('jazz', 1.1)"