Fix eslint config

Author: NullVoxPopuli

.npmignore

@@ -31,6 +31,7 @@
 /yarn.lock
 /*.tgz
 .gitkeep
+eslint.config.mjs
 
 # ember-try
 /.node_modules.ember-try/

eslint.config.mjs

@@ -1,5 +1,30 @@
-import { ember } from 'ember-eslint';
+import globals from "globals";
+import { ember } from "ember-eslint";
+import * as url from "url";
+
+// Needed until Node 20
+const dirname = url.fileURLToPath(new URL(".", import.meta.url));
 
 export default [
-    ...ember.recommended(import.meta.dirname),
+  ...ember.recommended(dirname),
+  {
+    files: ["lib/**/*"],
+    languageOptions: {
+      globals: {
+        ...globals.node,
+      },
+    },
+  },
+  {
+    files: ["node-tests/**/*"],
+    languageOptions: {
+      globals: {
+        ...globals.node,
+        ...globals.mocha,
+      },
+    },
+    rules: {
+      "ember/no-test-support-import": "off",
+    },
+  },
 ];

package.json

@@ -81,6 +81,7 @@
     "ember-try": "3.0.0",
     "eslint": "^9.31.0",
     "fixturify": "3.0.0",
+    "globals": "^16.3.0",
     "loader.js": "4.7.0",
     "mocha": "11.7.1",
     "nyc": "17.1.0",