Function test_04

extra_tests/snippets/stdlib_io_bytesio.py:36–48

Tests that the read method increments the cursor position and the seek method moves the cursor to the appropriate position

()

def test_04():
    """
    Tests that the read method increments the
    cursor position and the seek method moves
    the cursor to the appropriate position
    """
    string = b"Test String 4"
    f = BytesIO(string)

    assert f.read(4) == b"Test"
    assert f.tell() == 4
    assert f.seek(0) == 0
    assert f.read(4) == b"Test"


def test_05():