[add] launch configs

.vscode/launch.json

@@ -8,11 +8,24 @@
       "type": "node",
       "request": "launch",
       "name": "Launch Program",
-            "skipFiles": [
-                "<node_internals>/**"
-            ],
+      "skipFiles": ["<node_internals>/**", "cache/**", "candidates/**"],
+      "sourceMaps": false,
+
       "program": "${workspaceFolder}/src/index.mjs",
-            "args": ["${workspaceFolder}/test_src/index.mjs"],
+      "args": []
+    },
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Test",
+      "skipFiles": ["<node_internals>/**", "cache/**", "candidates/**"],
+      "sourceMaps": false,
+      // run mocha test
+      "runtimeExecutable": "npx",
+      "runtimeArgs": [
+        "mocha"
+      ],
+      "args": ["test"]
     }
   ]
 }