Extend linting test with explicit rcfile path

.pylintrc

 [MASTER]
+max-line-length = 119
 disable = 
     missing-module-docstring,
     too-few-public-methods

tests/test_lint.py

 from unittest import TestCase
 #pylint: disable=missing-class-docstring,missing-function-docstring
+import sys
+import pathlib
 from pylint import epylint
 
 
 class CodeQualityCase(TestCase):
+    def setUp(self):
+        self.vcsroot = pathlib.Path(__file__).parent.parent.absolute()
+        self.rcfile = self.vcsroot.joinpath('.pylintrc')
+
     def test_source_quality(self):
-        self.assertEqual(0, epylint.lint("coffee_bot", ["--fail-under=9.5"]))
+        self.assertEqual(0, epylint.lint("coffee_bot", ["--fail-under=9.5", f"--rcfile={self.rcfile}"]))
 
     def test_test_quality(self):
-        self.assertEqual(0, epylint.lint("tests", ["--fail-under=9.5"]))
+        self.assertEqual(0, epylint.lint("tests", ["--fail-under=9.5", f"--rcfile={self.rcfile}"]))