"""Unit tests: report_invalid_alts"""
import pytest


@pytest.mark.parametrize("valid", [True, False], ids=["valid", "no_valid"])
@pytest.mark.parametrize("previous", [True, False], ids=["prev", "no_prev"])
def test_report_invalid_alts(runner, yadm, valid, previous):
    """Use report_invalid_alts"""

    lwi = ""
    alts = "INVALID_ALT=()"
    if previous:
        lwi = "LEGACY_WARNING_ISSUED=1"
    if not valid:
        alts = 'INVALID_ALT=("file##invalid")'

    script = f"""
        YADM_TEST=1 source {yadm}
        {lwi}
        {alts}
        report_invalid_alts
    """
    run = runner(command=["bash"], inp=script)
    assert run.success
    assert run.out == ""
    if not valid and not previous:
        assert "WARNING" in run.err
        assert "file##invalid" in run.err
    else:
        assert run.err == ""