def test_write_dxf():
entity = LWPolyline.from_text(LWPOLYLINE)
collector = TagCollector()
entity.export_dxf(collector)
assert len(collector.tags) == 0, "do not export empty polylines"
entity.append((1, 2))
entity.export_dxf(collector)
result = collector.tags
expected = basic_tags_from_text(RESULT1)
assert result == expected
def entity():
return LWPolyline.from_text(LWPOLYLINE)
def test_raises_dxf_structure_error_for_missing_AcDbPolyline_subclass():
with pytest.raises(DXFStructureError):
LWPolyline.from_text(LWPOLYLINE_ERR)