import unittest

from generator import inject_outlook_hacks


class HtmlInjectionTest(unittest.TestCase):
    def test_html_injection_adds_folded_alt_desc(self) -> None:
        ical_text = "\n".join(
            [
                "BEGIN:VCALENDAR",
                "BEGIN:VEVENT",
                "UID:abc123",
                "END:VEVENT",
                "END:VCALENDAR",
            ]
        )
        long_html = "A" * 200
        result = inject_outlook_hacks(ical_text, {"abc123": long_html})

        self.assertIn("X-ALT-DESC;FMTTYPE=text/html:", result)
        self.assertIn("X-MICROSOFT-CDO-BUSYSTATUS:BUSY", result)
        self.assertIn("TRANSP:OPAQUE", result)
        alt_index = result.find("X-ALT-DESC;FMTTYPE=text/html:")
        self.assertNotEqual(alt_index, -1)
        self.assertIn("\r\n ", result[alt_index : alt_index + 200])