yes

src/db/test/routes/root.test.ts

@@ -0,0 +1,12 @@
+import { test } from 'node:test'
+import * as assert from 'node:assert'
+import { build } from '../helper.js'
+
+test('default root route', async (t) => {
+  const app = await build(t)
+
+  const res = await app.inject({
+    url: '/'
+  })
+  assert.deepStrictEqual(JSON.parse(res.payload), { root: true })
+})