def test_fields():
# test initialization
a = Area(name="area_name",
desc="area_desc",
domain=[9],
action=lambda: 5,
resource_id="r_id")
# test fields
assert a.name == "area_name"
assert a.desc == "area_desc"
assert len(a.domain) == 1 and a.domain[0] == 9
assert a.action() == 5
assert a.resource_id == "r_id"
# test dump
dump = a.dump()
assert dump['name'] == "area_name"
assert dump['desc'] == "area_desc"
assert dump['domain'] == "[9]"
assert str(dump) == str(a)
