def METHOD_NAME(self):
    # Issue #22406
    encodedtext = (
        "begin 644 file\n"
        # length 1; bits 001100 111111 111111 111111
        "\x21\x2C\x5F\x5F\x5F\n"
        "\x20\n"
        "end\n"
    )
    plaintext = "\x33"  # 00110011
    inp = cStringIO.StringIO(encodedtext)
    out = cStringIO.StringIO()
    uu.decode(inp, out, quiet=True)
    self.assertEqual(out.getvalue(), plaintext)
    import codecs
    decoded = codecs.decode(encodedtext, "uu_codec")
    self.assertEqual(decoded, plaintext)