pytest failure with 5.3.0 or newer when pymongo is not installed

[loqs]

pytest fails with twenty eight errors all relating to importing pymongo such as:

_______________ ERROR at setup of test_roles_accepted[cl-mongo] ________________

request = <SubRequest 'clients' for <Function test_roles_accepted[cl-mongo]>>
app = <SecurityFixture 'tests.conftest'>
tmpdir = local('/tmp/pytest-of-builduser/pytest-0/test_roles_accepted_cl_mongo_0')
realdburl = None, realmongodburl = None

    @pytest.fixture(params=["cl-sqlalchemy", "c2", "cl-mongo", "cl-peewee"])
    def clients(request, app, tmpdir, realdburl, realmongodburl):
        if request.param == "cl-sqlalchemy":
            ds = sqlalchemy_setup(request, app, tmpdir, realdburl)
        elif request.param == "c2":
            ds = sqlalchemy_session_setup(request, app, tmpdir, realdburl)
        elif request.param == "cl-mongo":
>           ds = mongoengine_setup(request, app, tmpdir, realmongodburl)

tests/conftest.py:932: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

request = <SubRequest 'clients' for <Function test_roles_accepted[cl-mongo]>>
app = <SecurityFixture 'tests.conftest'>
tmpdir = local('/tmp/pytest-of-builduser/pytest-0/test_roles_accepted_cl_mongo_0')
realmongodburl = None

    def mongoengine_setup(request, app, tmpdir, realmongodburl):
        # To run against a realdb: mongod --dbpath <somewhere>
>       import pymongo
E       ModuleNotFoundError: No module named 'pymongo'

tests/conftest.py:334: ModuleNotFoundError

Full test log python-flask-security-too-5.4.2-1-x86_64-check.log
I am currently applying the following patch to skip the failing tests when pymongo isnot installed

diff --git a/tests/conftest.py b/tests/conftest.py
index db51f4b..9c0f25c 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -331,6 +331,7 @@ def mongoengine_datastore(request, app, tmpdir, realmongodburl):
 
 def mongoengine_setup(request, app, tmpdir, realmongodburl):
     # To run against a realdb: mongod --dbpath <somewhere>
+    pytest.importorskip("pymongo")
     import pymongo
     import mongomock
     from mongoengine import Document, connect

If the mongo packages are installed then the failure changes to being unable to connect to the mongo server. How can testing be performed when a mongo database is not available?

[loqs]

Issue was due to mongoengine 0.24.2 which is an unsupported old version. The lowest supported version of mongoengine being 0.27.0 for 5.4.2.