diff --git a/packages/config/DittoConfig.test.ts b/packages/config/DittoConfig.test.ts
new file mode 100644
index 00000000..fc2e472c
--- /dev/null
+++ b/packages/config/DittoConfig.test.ts
@@ -0,0 +1,19 @@
+import { assertEquals } from '@std/assert';
+
+import { DittoConfig } from './DittoConfig.ts';
+
+Deno.test('DittoConfig', async (t) => {
+  const env = new Map<string, string>([
+    ['DITTO_NSEC', 'nsec19shyxpuzd0cq2p5078fwnws7tyykypud6z205fzhlmlrs2vpz6hs83zwkw'],
+  ]);
+
+  const config = new DittoConfig(env);
+
+  await t.step('nsec', () => {
+    assertEquals(config.nsec, 'nsec19shyxpuzd0cq2p5078fwnws7tyykypud6z205fzhlmlrs2vpz6hs83zwkw');
+  });
+
+  await t.step('pubkey', () => {
+    assertEquals(config.pubkey, '1ba0c5ed1bbbf3b7eb0d7843ba16836a0201ea68a76bafcba507358c45911ff6');
+  });
+});