should work

requirements/dev.txt

@@ -3,10 +3,8 @@
 -r ./extra/charts.txt
 -r ./extra/snapshots.txt
 -r ./extra/xls.txt
+-r ./tests.txt
 
-importlib-metadata<5.0; python_version <= '3.7'
-coverage
-factory-boy>=3.1.0
-
-# So that we can test async celery tasks.
+# The Celery broker that test_project uses. Not required if not using async tasks, or if you have
+# a Celery config that uses a different broker.
 redis>=5.0

requirements/tests.txt

@@ -0,0 +1,5 @@
+-r ./base.txt
+
+importlib-metadata<5.0; python_version <= '3.7'
+coverage
+factory-boy>=3.1.0

tox.ini

@@ -10,15 +10,15 @@ skip_missing_interpreters=True
 [testenv]
 allowlist_externals = coverage
 deps =
-    base-reqs: -r requirements/base.txt
+    base-reqs: -r requirements/tests.txt
     dj32: django>=3.2,<4.0
     dj42: django>=4.2,<5.0
     dj50: django>=5.0,<5.1
     djmain: https://github.com/django/django/archive/main.tar.gz
     dev: -r requirements/dev.txt
 commands =
     {envpython} --version
-    base-reqs: python manage.py test --settings=explorer.tests.settings_base --noinput
+    base-reqs: coverage run manage.py test --settings=explorer.tests.settings_base --noinput
     dev: coverage run manage.py test --settings=explorer.tests.settings --noinput
 ignore_outcome =
     djmain: True