"""Tests for ineptpdf parsing helpers."""

import dedrm_test_utils as U

pdf = U.load("ineptpdf", package="dedrm")


def test_nunpack_lengths():
    assert pdf.nunpack(b"") == 0
    assert pdf.nunpack(b"", default=7) == 7
    assert pdf.nunpack(b"\x05") == 5
    assert pdf.nunpack(b"\x01\x00") == 256
    assert pdf.nunpack(b"\x01\x00\x00") == 65536
    assert pdf.nunpack(b"\x01\x00\x00\x00") == 16777216


def test_unpad_strips_trailing_pad_length():
    assert pdf.unpad(b"hello\x03\x03\x03") == b"hello"