diff --git a/src/db/memorelay.test.ts b/src/db/memorelay.test.ts
new file mode 100644
index 00000000..b0125cfc
--- /dev/null
+++ b/src/db/memorelay.test.ts
@@ -0,0 +1,18 @@
+import { assertEquals } from '@/deps-test.ts';
+
+import event1 from '~/fixtures/events/event-1.json' assert { type: 'json' };
+
+import { memorelay } from './memorelay.ts';
+
+Deno.test('memorelay', async () => {
+  assertEquals(memorelay.hasEvent(event1), false);
+  assertEquals(memorelay.hasEventById(event1.id), false);
+
+  memorelay.insertEvent(event1);
+
+  assertEquals(memorelay.hasEvent(event1), true);
+  assertEquals(memorelay.hasEventById(event1.id), true);
+
+  const result = await memorelay.getFilters([{ ids: [event1.id] }]);
+  assertEquals(result[0], event1);
+});