fix tests

src/vs/workbench/contrib/chat/test/common/chatService.test.ts

@@ -20,6 +20,9 @@ import { ChatService } from 'vs/workbench/contrib/chat/common/chatServiceImpl';
 import { IExtensionService } from 'vs/workbench/services/extensions/common/extensions';
 import { TestContextService, TestExtensionService, TestStorageService } from 'vs/workbench/test/common/workbenchTestServices';
 import { IWorkspaceContextService } from 'vs/platform/workspace/common/workspace';
+import { ChatSlashCommandService, IChatSlashCommandService } from 'vs/workbench/contrib/chat/common/chatSlashCommands';
+import { SyncDescriptor } from 'vs/platform/instantiation/common/descriptors';
+import { ServiceCollection } from 'vs/platform/instantiation/common/serviceCollection';
 
 class SimpleTestProvider extends Disposable implements IChatProvider {
 	private static sessionId = 0;
@@ -61,7 +64,9 @@ suite('Chat', () => {
 	let instantiationService: TestInstantiationService;
 
 	suiteSetup(async () => {
-		instantiationService = new TestInstantiationService();
+		instantiationService = new TestInstantiationService(new ServiceCollection(
+			[IChatSlashCommandService, new SyncDescriptor<any>(ChatSlashCommandService)]
+		));
 		instantiationService.stub(IStorageService, storageService = new TestStorageService());
 		instantiationService.stub(ILogService, new NullLogService());
 		instantiationService.stub(IExtensionService, new TestExtensionService());