MAINT: Added xfail_strict option.

README.md

@@ -43,7 +43,7 @@ Conduct](https://gitlab.com/caosdb/caosdb/-/blob/dev/CODE_OF_CONDUCT.md).
   [documentation](https://docs.indiscale.com/caosdb-advanced-user-tools/), the
   preferred way is also a merge request as describe above (the documentation
   resides in `src/doc`). However, you can also create an issue for it.
-- You can also contact us at **info (AT) caosdb.de** and join the CaosDB
+- You can also contact us at **info (AT) caosdb.org** and join the CaosDB
   community on
   [#caosdb:matrix.org](https://matrix.to/#/!unwwlTfOznjEnMMXxf:matrix.org).
 

pytest.ini

-[pytest]
-testpaths = unittests
-addopts = -vv

tox.ini

 [tox]
 envlist=py38, py39, py310
 skip_missing_interpreters = true
+
 [testenv]
 deps=nose
     pandas
@@ -15,3 +16,8 @@ commands=py.test --cov=caosadvancedtools -vv {posargs}
 
 [flake8]
 max-line-length=100
+
+[pytest]
+testpaths = unittests
+addopts = -vv
+xfail_strict = True