Only look for tests in src/ docs/ and tests/

Author: coretl

setup.cfg

@@ -73,6 +73,9 @@ addopts =
     --cov=dls_python3_skeleton --cov-report term --cov-report xml:cov.xml
 # https://iscinumpy.gitlab.io/post/bound-version-constraints/#watch-for-warnings
 filterwarnings = error
+# Doctest python code in docs, python code in src docstrings, test functions in tests
+testpaths =
+    docs src tests
 
 [coverage:run]
 # This is covered in the versiongit test suite so exclude it here