text: from datetime import timedelta
  from unittest.mock import patch
  
  from django.core.exceptions import ValidationError
  
  import pytest
  
  from app.content.factories import (
      EventFactory,
      PriorityFactory,
      RegistrationFactory,
  )
  from app.util.utils import now
  
  
  @pytest.fixture()
  def event():
      return EventFactory()
  
  
  @pytest.fixture()
  def registration(event):
      return RegistrationFactory(event=event)
  
  
  @pytest.fixture()
  def priority():
      return PriorityFactory()
  
  
  @pytest.mark.django_db
  def test_expired_when_event_has_not_expired(event):
      """Should return False when end date is before yesterday."""
      event.end_date = now()
  
      assert not event.expired
  
  
  @pytest.mark.django_db
  def test_expired_when_event_has_expired(event):
      """Should return True when end date is after yesterday."""
      event.end_date = now() - timedelta(days=10)
  
      assert event.expired
  
  
  @pytest.mark.django_db
  @pytest.mark.parametrize(
      "users_not_on_wait, users_on_wait, expected_list_count",
      [(0, 0, 0), (5, 0, 5), (1, 4, 1),],
  )
  def test_list_count(event, users_not_on_wait, users_on_wait, expected_list_count):
      """Should return the number of registered users who are to attend."""
      event.limit = users_not_on_wait
      RegistrationFactory.create_batch(users_on_wait, is_on_wait=True, event=event)
      RegistrationFactory.create_batch(users_not_on_wait, is_on_wait=False, event=event)
  
      assert event.list_count == expected_list_count
  
  
  @pytest.mark.django_db
  @pytest.mark.parametrize(
      "users_not_on_wait, users_on_wait, expected_waiting_list_count",
      [(0, 0, 0), (5, 0, 0), (1, 4, 4),],
  )
  def test_waiting_list_count(
      event, users_not_on_wait, users_on_wait, expected_waiting_list_count
  ):
      """Should return the number of registered users who are on the waiting list."""
      event.limit = users_not_on_wait
      RegistrationFactory.create_batch(users_on_wait, is_on_wait=True, event=event)
      RegistrationFactory.create_batch(users_not_on_wait, is_on_wait=False, event=event)
  
      assert event.waiting_list_count == expected_waiting_list_count
  
  
  @pytest.mark.django_db
  def test_has_waiting_list_when_event_does_not_have_limit(event):
      """Test that an event has a waiting list if the limit is not zero and is not full or has users on wait."""
      event.limit = 0
  
      assert not event.has_waiting_list()
  
  
  @pytest.mark.django_db
  def test_has_waiting_list_when_event_is_full(event):
      """Test that an event has a waiting list if the event is full."""
      event.limit = 1
      RegistrationFactory.create_batch(2, event=event)
  
      assert event.has_waiting_list()
  
  
  @pytest.mark.django_db
  def test_has_waiting_list_when_event_has_users_on_wait(event):
      """Test that an event has a waiting list if there are any users on the waiting list."""
      event.limit = 10
      RegistrationFactory(event=event)
      waiting_list_registration = RegistrationFactory(event=event)
  
      waiting_list_registration.is_on_wait = True
      waiting_list_registration.save()
  
      assert event.has_waiting_list()
  
  
  @pytest.mark.django_db
  def test_has_waiting_list_when_event_is_not_full(event):
      """
          Test that an event does not have a waiting list when there are available spots and no users on wait.
      """
      event.limit = 100
      RegistrationFactory.create_batch(1, event=event)
  
      assert not event.has_waiting_list()
  
  
  @pytest.mark.django_db
  @pytest.mark.parametrize("limit, has_limit", [(0, False), (1, True)])
  def test_has_limit(event, limit, has_limit):
      """Should return True if limit is zero, else False."""
      event.limit = limit
  
      assert event.has_limit() == has_limit
  
  
  @pytest.mark.django_db
  @pytest.mark.parametrize(
      "limit, number_of_attendees, is_full", [(1, 1, True), (1, 2, True), (2, 1, False)]
  )
  def test_is_full(event, limit, number_of_attendees, is_full):
      """
          Should return True if number of registered users is greater than limit, else False.
      """
      event.limit = limit
      RegistrationFactory.create_batch(number_of_attendees, event=event)
  
      assert event.is_full == is_full
  
  
  @pytest.mark.django_db
  def test_has_priorities_when_no_priorities_exists(event):
      """Should return False if no registration priorities are connected to event."""
      event.registration_priorities.clear()
  
      assert not event.has_priorities()
  
  
  @pytest.mark.django_db
  def test_has_priorities_when_priorities_exists_on_event(event, priority):
      """Should return True if any registration priorities are connected to event."""
      event.registration_priorities.add(priority)
  
      assert event.has_priorities()
  
  
  @pytest.mark.django_db
  @patch("app.content.models.event.Event.validate_start_end_registration_times")
  def test_clean_validates_date_times(mock_validate_start_end_registration_times, event):
      """Test that the clean method initiates validation sequence."""
      event.clean()
  
      assert mock_validate_start_end_registration_times.called
  
  
  @pytest.mark.django_db
  @pytest.mark.parametrize(
      "start_registration_at, end_registration_at",
      [(None, now()), (now(), None), (now(), now())],
  )
  def test_check_sign_up_and_registration_times_when_event_does_not_have_sign_up_raises_error(
      event, start_registration_at, end_registration_at
  ):
      """Should raise ValidationError if event does not have sign up and dates are set."""
      event.sign_up = False
      event.start_registration_at = start_registration_at
      event.end_registration_at = end_registration_at
  
      with pytest.raises(ValidationError):
          event.check_sign_up_and_registration_times()
  
  
  @pytest.mark.django_db
  @pytest.mark.parametrize(
      "start_registration_at, end_registration_at, sign_off_deadline",
      [
          (None, None, None),
          (None, None, now()),
          (None, now(), now()),
          (now(), None, None),
          (now(), None, now()),
          (now(), now(), None),
      ],
  )
  def test_check_if_registration_is_not_set_when_event_has_signup_raises_error(
      event, start_registration_at, end_registration_at, sign_off_deadline
  ):
      """Should raise ValidationError if event has sign up but not required dates."""
      event.sign_up = True
      event.start_registration_at = start_registration_at
      event.end_registration_at = end_registration_at
      event.sign_off_deadline = sign_off_deadline
  
      with pytest.raises(ValidationError):
          event.check_if_registration_is_not_set()
  
  
  @pytest.mark.django_db
  def test_check_sign_up_and_sign_off_deadline_when_no_sign_up_but_sign_off_deadline_is_set_raises_error(
      event,
  ):
      """Should raise ValidationError if event has sign off dead line but no sign up."""
      event.sign_up = False
      event.sign_off_deadline = now()
  
      with pytest.raises(ValidationError):
          event.check_sign_up_and_sign_off_deadline()
  
  
  @pytest.mark.django_db
  def test_check_start_time_is_before_end_registration(event):
      """Should raise ValidationError if event end date is before event start date."""
      event.start_date = now()
      event.end_registration_at = now() + timedelta(days=1)
  
      with pytest.raises(ValidationError):
          event.check_start_time_is_before_end_registration()
  
  
  @pytest.mark.django_db
  def test_check_start_registration_is_before_end_registration(event):
      """Should raise ValidationError if start time for registration is after registration end time."""
      event.start_registration_at = now()
      event.end_registration_at = now() - timedelta(days=1)
  
      with pytest.raises(ValidationError):
          event.check_start_registration_is_before_end_registration()
  
  
  @pytest.mark.django_db
  def test_check_start_registration_is_after_start_time(event):
      """Should raise ValidationError if registration start time is after event start time."""
      event.start_date = now()
      event.start_registration_at = now() + timedelta(days=1)
  
      with pytest.raises(ValidationError):
          event.check_start_registration_is_after_start_time()
  
  
  @pytest.mark.django_db
  def test_check_end_time_is_before_end_registration(event):
      """Should raise ValidationError if registration end time is after event end time."""
      event.end_date = now()
      event.end_registration_at = now() + timedelta(days=1)
  
      with pytest.raises(ValidationError):
          event.check_end_time_is_before_end_registration()
  
  
  @pytest.mark.django_db
  def test_check_start_date_is_before_deadline(event):
      """Should raise ValidationError if sign off deadline is after event start time."""
      event.start_date = now()
      event.sign_off_deadline = now() + timedelta(days=1)
  
      with pytest.raises(ValidationError):
          event.check_start_date_is_before_deadline()
  
  
  @pytest.mark.django_db
  def test_check_start_registration_is_after_deadline(event):
      """Should raise ValidationError if sign off deadline is after registration start time."""
      event.sign_off_deadline = now()
      event.start_registration_at = now() + timedelta(days=1)
  
      with pytest.raises(ValidationError):
          event.check_start_registration_is_after_deadline()
  