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51 lines
1010 B
Python
51 lines
1010 B
Python
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from io import BytesIO
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def test_01():
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bytes_string = b'Test String 1'
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f = BytesIO()
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f.write(bytes_string)
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assert f.getvalue() == bytes_string
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def test_02():
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bytes_string = b'Test String 2'
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f = BytesIO(bytes_string)
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assert f.read() == bytes_string
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assert f.read() == b''
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def test_03():
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"""
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Tests that the read method (integer arg)
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returns the expected value
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"""
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string = b'Test String 3'
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f = BytesIO(string)
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assert f.read(1) == b'T'
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assert f.read(1) == b'e'
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assert f.read(1) == b's'
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assert f.read(1) == b't'
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def test_04():
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"""
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Tests that the read method increments the
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cursor position and the seek method moves
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the cursor to the appropriate position
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"""
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string = b'Test String 4'
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f = BytesIO(string)
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assert f.read(4) == b'Test'
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assert f.seek(0) == 0
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assert f.read(4) == b'Test'
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if __name__ == "__main__":
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test_01()
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test_02()
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test_03()
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test_04()
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