diff --git a/packages/plugin-common/tests/respondent.spec.ts b/packages/plugin-common/tests/respondent.spec.ts
new file mode 100644
index 0000000000..2f8289ef04
--- /dev/null
+++ b/packages/plugin-common/tests/respondent.spec.ts
@@ -0,0 +1,21 @@
+import { MockedApp } from 'koishi-test-utils'
+import respondent, { Respondent } from '../src/respondent'
+
+const app = new MockedApp()
+const session = app.createSession('user', 123)
+
+// make coverage happy
+app.plugin(respondent)
+app.plugin<Respondent[]>(respondent, [{
+  match: '挖坑一时爽',
+  reply: '填坑火葬场',
+}, {
+  match: /^(.+)一时爽$/,
+  reply: (_, action) => `一直${action}一直爽`,
+}])
+
+test('basic support', async () => {
+  await session.shouldHaveReply('挖坑一时爽', '填坑火葬场')
+  await session.shouldHaveReply('填坑一时爽', '一直填坑一直爽')
+  await session.shouldHaveNoResponse('填坑一直爽')
+})