import pytest
from _pytest.main import ExitCode


@pytest.mark.parametrize(
    "ret_exc",
    (
        pytest.param((None, ValueError)),
        pytest.param((42, SystemExit)),
        pytest.param((False, SystemExit)),
    ),
)
def test_wrap_session_notify_exception(ret_exc, testdir):
    returncode, exc = ret_exc
    c1 = testdir.makeconftest(
        """
        import pytest

        def pytest_sessionstart():
            raise {exc}("boom")

        def pytest_internalerror(excrepr, excinfo):
            returncode = {returncode!r}
            if returncode is not False:
                pytest.exit("exiting after %s..." % excinfo.typename, returncode={returncode!r})
    """.format(
            returncode=returncode, exc=exc.__name__
        )
    )
    result = testdir.runpytest()
    if returncode:
        assert result.ret == returncode
    else:
        assert result.ret == ExitCode.INTERNAL_ERROR
    assert result.stdout.lines[0] == "INTERNALERROR> Traceback (most recent call last):"

    if exc == SystemExit:
        assert result.stdout.lines[-3:] == [
            'INTERNALERROR>   File "{}", line 4, in pytest_sessionstart'.format(c1),
            'INTERNALERROR>     raise SystemExit("boom")',
            "INTERNALERROR> SystemExit: boom",
        ]
    else:
        assert result.stdout.lines[-3:] == [
            'INTERNALERROR>   File "{}", line 4, in pytest_sessionstart'.format(c1),
            'INTERNALERROR>     raise ValueError("boom")',
            "INTERNALERROR> ValueError: boom",
        ]
    if returncode is False:
        assert result.stderr.lines == ["mainloop: caught unexpected SystemExit!"]
    else:
        assert result.stderr.lines == ["Exit: exiting after {}...".format(exc.__name__)]