Workaround for tox w/o setup.py bug

Related: tox-dev/tox#2197

tox.ini

@@ -18,7 +18,9 @@ requires =
     pip >= 20.2.4
 
 [testenv]
-usedevelop = True
+# usedevelop fails due to https://github.com/tox-dev/tox/issues/2197
+usedevelop = False
+
 # do not put * in passenv as it may break builds do to reduced isolation
 passenv =
     CI
@@ -45,6 +47,7 @@ setenv =
     PYTHONUNBUFFERED=1
     _EXTRAS=-l --cov=molecule --no-cov-on-fail --cov-report xml:{envlogdir}/coverage.xml --html={envlogdir}/reports.html --self-contained-html
 deps =
+    -e .
     devel: git+https://github.com/ansible/ansible#egg=ansible-core
     # pytest-molecule not used but we want to check that it does not conflict
     devel: git+https://github.com/ansible-community/pytest-molecule#egg=pytest-molecule