backend/tests/test_download_headers.py

from core.download_headers import attachment_content_disposition


def test_attachment_content_disposition_polish_chars_latin1_safe():
    header = attachment_content_disposition("Wniosek o dofinansowanie ćwiczeń.pdf")
    assert "filename=" in header
    assert "filename*=UTF-8" in header
    header.encode("latin-1")


def test_attachment_content_disposition_ascii_fallback():
    header = attachment_content_disposition("Wniosek o dofinansowanie.pdf")
    assert 'filename="Wniosek o dofinansowanie.pdf"' in header