Setup tester to locate local packages

.vscode/launch.json

@@ -0,0 +1,27 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    {
+        "version": "0.2.0",
+        "configurations": [
+            {
+                "name": "tests",
+                "type": "python",
+                "request": "launch",
+                "console": "integratedTerminal",
+                "cwd": "${workspaceFolder}",
+                "env": {
+                    "PYTHONPATH": "${workspaceFolder}/.pyenv:${env:PYTHONPATH}"
+                },
+                "pythonPath": "${command:python.interpreterPath}",
+                "program": "${workspaceFolder}/.pyenv/bin/pytest",
+                "args": [
+                    "-s",
+                    "-v",
+                    "${workspaceFolder}/tests/test_hierarchy_handler.py"
+                ]
+            }
+        ]
+    }
+