Fix FileSystem driver tests and verify example works

Co-authored-by: huangyiirene <[email protected]>

Author: Copilot

packages/drivers/fs/src/index.ts

@@ -216,6 +216,15 @@ export class FileSystemDriver implements Driver {
      * Create a new record.
      */
     async create(objectName: string, data: any, options?: any): Promise<any> {
+        // Validate object name
+        if (!objectName || objectName.trim() === '') {
+            throw new ObjectQLError({
+                code: 'INVALID_OBJECT_NAME',
+                message: 'Object name cannot be empty',
+                details: { objectName }
+            });
+        }
+
         const records = this.loadRecords(objectName);
 
         // Generate ID if not provided
@@ -314,8 +323,10 @@ export class FileSystemDriver implements Driver {
             actualFilters = filters.filters;
         }
 
-        // If no filters, return total count
-        if (!actualFilters || (Array.isArray(actualFilters) && actualFilters.length === 0)) {
+        // If no filters or empty object/array, return total count
+        if (!actualFilters || 
+            (Array.isArray(actualFilters) && actualFilters.length === 0) ||
+            (typeof actualFilters === 'object' && !Array.isArray(actualFilters) && Object.keys(actualFilters).length === 0)) {
             return records.length;
         }
 

packages/drivers/fs/test/index.test.ts

@@ -72,6 +72,10 @@ describe('FileSystemDriver', () => {
 
         test('should update a record', async () => {
             const created = await driver.create('users', { name: 'David', age: 25 });
+            
+            // Add small delay to ensure different timestamp
+            await new Promise(resolve => setTimeout(resolve, 10));
+            
             const updated = await driver.update('users', created.id, { age: 26 });
 
             expect(updated.age).toBe(26);