def METHOD_NAME(self, mock_messages_info) -> None:
    # Arrange
    request = RequestFactory().get("/")
    signal_name = "test_signal"
    scheduled_at = timezone.now()
    scheduled_email = ScheduledEmail(scheduled_at=scheduled_at)
    # Act
    messages_action_scheduled(request, signal_name, scheduled_email)
    # Assert
    mock_messages_info.assert_called_once_with(
        request,
        f"New email action ({signal_name}) was scheduled to run "
        f'<relative-time datetime="{scheduled_at}"></relative-time>: '
        f'<a href="{scheduled_email.get_absolute_url()}"><code>'
        f"{scheduled_email.pk}</code></a>.",
        extra_tags=settings.ONLY_FOR_ADMINS_TAG,
    )