flaky test: test_serialize_learning_resource_for_bulk

[shanbady]

Expected Behavior

Test should always pass

Current Behavior

Test fails intermittentlyl. failure log https://github.com/mitodl/mit-open/actions/runs/9487430224/job/26144060434?pr=1063#step:11:163

resource_type = 'program', is_professional = True, no_price = True

    @pytest.mark.django_db()
    @pytest.mark.parametrize(
        "resource_type",
        set(LearningResourceType.names()) - {LearningResourceType.course.name},
    )
    @pytest.mark.parametrize("is_professional", [True, False])
    @pytest.mark.parametrize("no_price", [True, False])
    def test_serialize_learning_resource_for_bulk(resource_type, is_professional, no_price):
        """
        Test that serialize_program_for_bulk yields a valid LearningResourceSerializer for resource types other than "course"
        The "course" resource type is tested by `test_serialize_course_numbers_for_bulk` below.
        """
        resource = factories.LearningResourceFactory.create(
            resource_type=resource_type, professional=is_professional, runs=[]
        )
        LearningResourceRunFactory.create(
            learning_resource=resource, prices=[Decimal(0.00 if no_price else 1.00)]
        )
        free_dict = {
            "free": resource_type
            not in [LearningResourceType.program.name, LearningResourceType.course.name]
            or (no_price and not is_professional)
        }
>       assert serializers.serialize_learning_resource_for_bulk(resource) == {
            "_id": resource.id,
            "resource_relations": {"name": "resource"},
            "created_on": resource.created_on,
            **free_dict,
            **LearningResourceSerializer(resource).data,
        }
E       AssertionError: assert {'_id': 2868,...g 8852'], ...} == {'_id': 2868,...g 8852'], ...}
E         Omitting 30 identical items, use -vv to show
E         Differing items:
E         {'program': {'courses': [{'id': 2869, 'topics': [{'id': 8280, 'name': 'Topic 8281', 'parent': None, 'channel_url': Non...d': True, 'languages': ['es'], 'url': 'https://lopez-martinez.org/', 'professional': False, 'next_start_date': None}]}} != {'program': {'courses': [{'id': 2869, 'topics': [{'id': 8280, 'name': 'Topic 8281', 'parent': None, 'channel_url': Non...d': True, 'languages': ['es'], 'url': 'https://lopez-martinez.org/', 'professional': False, 'next_start_date': None}]}}
E         Full diff:
E           {
E            '_id': 2868,
E            'certification': True,
E            'certification_type': {'code': 'professional',
E                                   'name': 'Professional Certificate'},
E            'course_feature': ['Tag 8849', 'Tag 8850', 'Tag 8851', 'Tag 8852'],
E            'created_on': datetime.datetime(2024, 6, 12, 18, 7, 13, 553775, tzinfo=datetime.timezone.utc),
E            'departments': [{'channel_url': None,
E                             'department_id': '2818',
E                             'name': '2818 name',
E                             'school': {'id': 2816,
E                                        'name': '2815 name',
E                                        'url': 'https://green.info/'}}],
E            'description': 'Could medical expect indicate kitchen.',
E            'free': False,
E            'full_description': 'Guess security her hard hear sing city cost. Left '
E                                'shoulder subject government. Billion everything movie no '
E                                'common race.',
E            'id': 2868,
E            'image': {'id': 6327, 'url': 'https://www.duarte-campbell.com/', 'description': 'Family throughout consumer deal scientist stage watch. Expert whose ready sound second prevent course.\nFilm face red. Our stay imagine play remain much shake.', 'alt': 'Standard majority responsibility rock responsibility low ground total. Reality away another role identify. Evening power professional today receive way.'},
E            'languages': ['es'],
E            'last_modified': '[199](https://github.com/mitodl/mit-open/actions/runs/9487430224/job/26144060434?pr=1063#step:11:200)7-11-22T15:34:39.043868Z',
E            'learning_format': [{'code': 'in_person', 'name': 'In person'}],
E            'learning_path_parents': [],
E            'next_start_date': None,
E            'offered_by': {'channel_url': None,
E                           'code': 'see',
E                           'name': 'Sloan Executive Education'},
E            'platform': {'code': 'globalalumni', 'name': 'Global Alumni'},
E            'prices': [Decimal('0.00')],
E            'professional': True,