mirror of https://github.com/Textualize/rich.git
24 lines
713 B
Python
24 lines
713 B
Python
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from rich._null_file import NullFile
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def test_null_file():
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file = NullFile()
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with file:
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assert file.write("abc") == 0
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assert file.close() is None
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assert not file.isatty()
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assert file.read() == ""
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assert not file.readable()
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assert file.readline() == ""
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assert file.readlines() == []
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assert file.seek(0, 0) == 0
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assert not file.seekable()
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assert file.tell() == 0
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assert file.truncate() == 0
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assert file.writable() == False
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assert file.writelines([""]) is None
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assert next(file) == ""
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assert next(iter(file)) == ""
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assert file.fileno() == -1
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assert file.flush() is None
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