diff --git a/test-d/streaming.ts b/test-d/streaming.ts
new file mode 100644
index 000000000..de67171ef
--- /dev/null
+++ b/test-d/streaming.ts
@@ -0,0 +1,12 @@
+import { expectType } from 'tsd';
+import * as Misskey from '../src';
+
+describe('Streaming', () => {
+	test('emit type', async () => {
+		const stream = new Misskey.Stream('https://misskey.test', { token: 'TOKEN' });
+		const mainChannel = stream.useSharedConnection('main');
+		mainChannel.on('notification', notification => {
+			expectType<Misskey.entities.Notification>(notification);
+		});
+	});
+});
diff --git a/test/api.ts b/test/api.ts
index 499c133ca..038929573 100644
--- a/test/api.ts
+++ b/test/api.ts
@@ -44,4 +44,8 @@ describe('API', () => {
 			body: { i: 'TOKEN' }
 		});
 	});
+
+	// TODO: APIエラーのテスト
+
+	// TODO: ネットワークエラーのテスト
 });