def test_clone_with_insert():
# difference of clone() to copy_entity() is:
# - clone returns and unassigned entity without handle, owner or reactors
# - copy_entity clones the entity and assigns the new entity to the same owner as the source and adds the entity
# and it linked entities (ATTRIB & VERTEX) to the entity database, but does not adding entity to a layout, setting
# owner tag is not enough to assign an entity to a layout, use Layout.add_entity()
insert = Insert()
insert.add_attrib('T1', 'value1', (0, 0))
clone = insert.copy()
assert clone.dxf.handle is None
assert clone.dxf.owner is None
assert len(clone.attribs) == 1
attrib = clone.attribs[0]
assert attrib.dxf.handle is None
assert attrib.dxf.tag == 'T1'
assert attrib.dxf.text == 'value1'
# change cloned attrib
attrib.dxf.tag = 'T2'
attrib.dxf.text = 'value2'
# source attrib is unchanged
assert insert.attribs[0].dxf.tag == 'T1'
assert insert.attribs[0].dxf.text == 'value1'
def test_add_attribs():
insert = Insert()
assert insert.attribs_follow is False
insert.add_attrib('T1', 'value1', (0, 0))
assert len(insert.attribs) == 1
assert insert.attribs_follow is True
