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Fix renaming layers #197

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14 changes: 14 additions & 0 deletions tests/test_ufoLib2.py
Original file line number Diff line number Diff line change
Expand Up @@ -284,3 +284,17 @@ def test_convert_on_setattr(
assert not isinstance(obj, attr_type)
setattr(o, attr_name, obj)
assert isinstance(getattr(o, attr_name), attr_type)


def test_LayerSet_rename_layer(tmp_path: Path, datadir: Path) -> None:
ufo = ufoLib2.Font.open(datadir / "MutatorSansBoldCondensed.ufo")
ufo_tmp_path = tmp_path / "test.ufo"

# Make sure we are not in overwrite mode before renaming.
ufo.save(ufo_tmp_path)
ufo = ufoLib2.Font.open(ufo_tmp_path)
ufo.renameLayer("background", "public.background2")
ufo.save()

ufo2 = ufoLib2.Font.open(ufo_tmp_path)
assert ufo == ufo2