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36 lines
665 B
Python
36 lines
665 B
Python
from io import BufferedReader, FileIO, StringIO, BytesIO
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import os
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fi = FileIO('README.md')
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assert fi.seekable()
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bb = BufferedReader(fi)
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assert bb.seekable()
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result = bb.read()
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assert len(result) <= 8*1024
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assert len(result) >= 0
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assert isinstance(result, bytes)
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with FileIO('README.md') as fio:
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res = fio.read()
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assert len(result) <= 8*1024
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assert len(result) >= 0
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assert isinstance(result, bytes)
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fd = os.open('README.md', os.O_RDONLY)
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with FileIO(fd) as fio:
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res2 = fio.read()
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assert res == res2
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fi = FileIO('README.md')
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fi.read()
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fi.close()
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try:
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fi.read()
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except ValueError:
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pass
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else:
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raise RuntimeError('ValueError should be raised')
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