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# Copyright (c) 2025, Matt Broadway
# License: MIT License
from __future__ import annotations
import io
import pickle
from collections.abc import Iterator
from pathlib import Path
import pytest
import ezdxf
from ezdxf.document import Drawing
EXAMPLES = Path(__file__).parent.parent / "examples_dxf"
def example_dxfs() -> Iterator[Path]:
for item in EXAMPLES.iterdir():
if item.suffix.lower() == ".dxf":
yield item
def _to_dxf_str(doc: Drawing) -> str:
stream = io.StringIO()
doc.write(stream)
return stream.getvalue()
def test_document_pickle(monkeypatch: pytest.MonkeyPatch) -> None:
monkeypatch.setattr(ezdxf.options, "write_fixed_meta_data_for_testing", True)
for item in example_dxfs():
print(f"testing pickling of {item}")
doc = ezdxf.readfile(item)
doc_serialized = pickle.dumps(doc)
doc_loaded = pickle.loads(doc_serialized)
assert _to_dxf_str(doc) == _to_dxf_str(doc_loaded)
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