def test_diff_element_str_with_diffs():
element = DiffElement("interface", "eth0", {"device_name": "device1", "name": "eth0"})
element.add_attrs(source={"interface_type": "ethernet", "description": "my interface"})
assert element.str() == "interface: eth0 MISSING in dest"
element.add_attrs(dest={"description": "your interface"})
assert (
element.str()
== """\
interface: eth0
description source(my interface) dest(your interface)\
"""
)
def test_diff_element_str_with_no_diffs():
element = DiffElement("interface", "eth0", {"device_name": "device1", "name": "eth0"})
assert element.str() == "interface: eth0 (no diffs)"