Scope tox commands to not accidentally pick up unrelated python

files/tests/etc

tox.ini

@@ -4,15 +4,15 @@ skipsdist = true
 
 [testenv]
 deps = -r requirements/testing.txt
-commands = python -m pytest --verbose --cov=pyslackersweb/ --cov-report=term-missing --junit-xml={envdir}/artifacts/test-results.xml
+commands = python -m pytest --verbose --cov=pyslackersweb/ --cov-report=term-missing --junit-xml={envdir}/artifacts/test-results.xml tests/
 
 [testenv:lint]
 deps =
     -r requirements/testing.txt
 commands =
-    pylint pyslackersweb
-    mypy . --ignore-missing-imports
+    pylint ./pyslackersweb
+    mypy ./pyslackersweb --ignore-missing-imports
 
 [testenv:fmt]
 deps = black
-commands = black --check .
+commands = black --check pyslackersweb/ tests/