chore: improve tests and fix typo

packages/plugins/policy/plugin.zmodel

@@ -1,7 +1,7 @@
 /**
  * Defines an access policy that allows a set of operations when the given condition is true.
  *
- * @param operation: comma-separated list of "create", "read", "update", "post-update", " "delete". Use "all" to denote all operations.
+ * @param operation: comma-separated list of "create", "read", "update", "post-update", "delete". Use "all" to denote all operations.
  * @param condition: a boolean expression that controls if the operation should be allowed.
  */
 attribute @@allow(_ operation: String @@@completionHint(["'create'", "'read'", "'update'", "'post-update'","'delete'", "'all'"]), _ condition: Boolean)

packages/testtools/src/utils.ts

@@ -1,7 +1,6 @@
 import { loadDocument } from '@zenstackhq/language';
-import path from 'node:path';
 
 export function loadDocumentWithPlugins(filePath: string) {
-    const pluginModelFiles = [path.resolve(__dirname, '../node_modules/@zenstackhq/plugin-policy/plugin.zmodel')];
+    const pluginModelFiles = [require.resolve('@zenstackhq/plugin-policy/plugin.zmodel')];
     return loadDocument(filePath, pluginModelFiles);
 }