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60 lines
1.7 KiB
60 lines
1.7 KiB
import io
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import copy
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import pickle
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from fontTools.ttLib.sfnt import calcChecksum, SFNTReader
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import pytest
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def test_calcChecksum():
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assert calcChecksum(b"abcd") == 1633837924
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assert calcChecksum(b"abcdxyz") == 3655064932
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EMPTY_SFNT = b"\x00\x01\x00\x00" + b"\x00" * 8
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def pickle_unpickle(obj):
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return pickle.loads(pickle.dumps(obj))
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class SFNTReaderTest:
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@pytest.mark.parametrize("deepcopy", [copy.deepcopy, pickle_unpickle])
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def test_pickle_protocol_FileIO(self, deepcopy, tmp_path):
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fontfile = tmp_path / "test.ttf"
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fontfile.write_bytes(EMPTY_SFNT)
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reader = SFNTReader(fontfile.open("rb"))
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reader2 = deepcopy(reader)
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assert reader2 is not reader
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assert reader2.file is not reader.file
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assert isinstance(reader2.file, io.BufferedReader)
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assert isinstance(reader2.file.raw, io.FileIO)
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assert reader2.file.name == reader.file.name
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assert reader2.file.tell() == reader.file.tell()
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for k, v in reader.__dict__.items():
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if k == "file":
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continue
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assert getattr(reader2, k) == v
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@pytest.mark.parametrize("deepcopy", [copy.deepcopy, pickle_unpickle])
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def test_pickle_protocol_BytesIO(self, deepcopy, tmp_path):
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buf = io.BytesIO(EMPTY_SFNT)
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reader = SFNTReader(buf)
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reader2 = deepcopy(reader)
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assert reader2 is not reader
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assert reader2.file is not reader.file
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assert isinstance(reader2.file, io.BytesIO)
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assert reader2.file.tell() == reader.file.tell()
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assert reader2.file.getvalue() == reader.file.getvalue()
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for k, v in reader.__dict__.items():
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if k == "file":
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continue
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assert getattr(reader2, k) == v
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