def test_xml(self):
# Set up test objects
test_repo = ConvertRepo()
test_type = ConvertType(test_repo, "test_type")
test_repo.add_type(test_type)
prefix_group = ConvertPrefixGroup(test_repo, "test_group")
test_repo.add_prefix_group(prefix_group)
test_type.base_unit = ConvertUnit(test_type, ["base_unit"], 1)
test_unit_names = ["name1", "name2"]
test_value = 1337
# Create test unit
test_unit = ConvertUnit(test_type, test_unit_names, test_value)
test_unit.set_offset(10)
test_unit.add_abbr("abbr1")
test_unit.valid_prefix_group = prefix_group
# Convert to XML and back
test_xml = test_unit.to_xml()
xml_unit = ConvertUnit.from_xml(test_type, test_xml)
assert len(test_unit.abbr_list) == 1
assert "abbr1" in xml_unit.abbr_list
assert xml_unit.type == test_type
assert len(test_unit.name_list) == 2
assert "name1" in xml_unit.name_list
assert "name2" in xml_unit.name_list
assert xml_unit.value == test_value
assert xml_unit.offset == 10
assert xml_unit.last_updated == test_unit.last_updated
assert xml_unit.valid_prefix_group == prefix_group
