From 51c3aec7881a7de78db471e5d5b064031dc71715 Mon Sep 17 00:00:00 2001
From: Sepehr Safari <safari.sepehr@gmail.com>
Date: Thu, 23 Mar 2023 23:00:38 +0330
Subject: [PATCH] add another test case for event file

---
 event.test.js | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/event.test.js b/event.test.js
index ee55246..dbd3765 100644
--- a/event.test.js
+++ b/event.test.js
@@ -307,5 +307,34 @@ describe('Event', () => {
       expect(sig.length).toEqual(128)
       expect(isValid).toEqual(true)
     })
+
+    it('should not sign an event with different private key', () => {
+      const privateKey =
+        'd217c1ff2f8a65c3e3a1740db3b9f58b8c848bb45e26d00ed4714e4a0f4ceecf'
+      const publicKey = getPublicKey(privateKey)
+
+      const wrongPrivateKey =
+        'a91e2a9d9e0f70f0877bea0dbf034e8f95d7392a27a7f07da0d14b9e9d456be7'
+
+      const unsignedEvent = {
+        kind: Kind.Text,
+        tags: [],
+        content: 'Hello, world!',
+        created_at: 1617932115,
+        pubkey: publicKey
+      }
+
+      const sig = signEvent(unsignedEvent, wrongPrivateKey)
+
+      // verify the signature
+      const isValid = verifySignature({
+        ...unsignedEvent,
+        sig
+      })
+
+      expect(typeof sig).toEqual('string')
+      expect(sig.length).toEqual(128)
+      expect(isValid).toEqual(false)
+    })
   })
 })