@isTest
 private class GoogleDriveFeatureTest {

//     private class MockHttpListFiles implements HttpCalloutMock {
//         public HttpResponse respond(HttpRequest req) {
//             HttpResponse res = new HttpResponse();
//             res.setStatusCode(200);
//             res.setHeader('Content-Type', 'application/json');

//             res.setBody('{' +
//                 '"files": [' +
//                     '{' +
//                         '"id": "file123",' +
//                         '"name": "Sample File",' +
//                         '"createdTime": "2021-07-01T10:00:00.000Z",' +
//                         '"webContentLink": "http://example.com/file",' +
//                         '"size": "2048",' +
//                         '"parents": ["parent123"],' +
//                         '"mimeType": "application/pdf",' +
//                         '"owners": [{"displayName": "John Doe"}]' +
//                     '}' +
//                 ']' +
//             '}');
//             return res;
//         }
//     }

//     private class MockHttpCreateFolder implements HttpCalloutMock {
//         public HttpResponse respond(HttpRequest req) {
//             HttpResponse res = new HttpResponse();
//             res.setStatusCode(200);
//             res.setHeader('Content-Type', 'application/json');
//             res.setBody('{' +
//                 '"id": "newFolder123",' +
//                 '"name": "New Test Folder"' +
//             '}');
//             return res;
//         }
//     }

//     @testSetup
//     static void setupData() {
//         HIC_FilesME__ExternalServiceConfig__c config = new HIC_FilesME__ExternalServiceConfig__c(
//             Name = 'Google Drive Config',
//             HIC_FilesME__External_Storage_Type__c = 'Google Drive',
//             HIC_FilesME__Is_Admin_level_Credentials__c = true,
//             HIC_FilesME__Access_Token__c = 'abc',
//             HIC_FilesME__Refresh_Token__c = 'refresh_token',
//             HIC_FilesME__User__c = UserInfo.getUserId()
//         );
//         insert config;
//     }

//     @isTest
//     static void testListFilesRootFolder() {
//         User u = [SELECT Id FROM User WHERE IsActive = TRUE LIMIT 1];
//         System.runAs(u) {
//             Test.setMock(HttpCalloutMock.class, new MockHttpListFiles());
//             GoogleDriveFeature drive = new GoogleDriveFeature();

//             Test.startTest();
//             OperationResult result = drive.listFiles(true, UserInfo.getUserId(), true, null);
//             Test.stopTest();

//             System.assertNotEquals(null, result);
//         }
//     }

//     @isTest
//     static void testListFilesNonRootFolder() {
//         User u = [SELECT Id FROM User WHERE IsActive = TRUE LIMIT 1];
//         System.runAs(u) {
//             Test.setMock(HttpCalloutMock.class, new MockHttpListFiles());
//             GoogleDriveFeature drive = new GoogleDriveFeature();

//             Test.startTest();
//             OperationResult result = drive.listFiles(true, UserInfo.getUserId(), false, 'someFolderId');
//             Test.stopTest();

//             System.assertNotEquals(null, result);
//         }
//     }

//     @isTest
//     static void testCreateFolderWithParent() {
//         User u = [SELECT Id FROM User WHERE IsActive = TRUE LIMIT 1];
//         System.runAs(u) {
//             Test.setMock(HttpCalloutMock.class, new MockHttpCreateFolder());
//             GoogleDriveFeature drive = new GoogleDriveFeature();

//             Test.startTest();
//             OperationResult result = drive.createFolder('parent123', true, 'TestFolder', UserInfo.getUserId());
//             Test.stopTest();

//             System.assertNotEquals(null, result);
//         }
//     }

//     @isTest
//     static void testCreateFolderWithoutParent() {
//         User u = [SELECT Id FROM User WHERE IsActive = TRUE LIMIT 1];
//         System.runAs(u) {
//             Test.setMock(HttpCalloutMock.class, new MockHttpCreateFolder());
//             GoogleDriveFeature drive = new GoogleDriveFeature();

//             Test.startTest();
//             OperationResult result = drive.createFolder(null, true, 'TestFolder', UserInfo.getUserId());
//             Test.stopTest();

//             System.assertNotEquals(null, result);
//         }
//     }

//     private class MockHttpError implements HttpCalloutMock {
//         public HttpResponse respond(HttpRequest req) {
//             HttpResponse res = new HttpResponse();
//             res.setStatusCode(500);
//             res.setBody('{"error": "Internal Server Error"}');
//             return res;
//         }
//     }
 }