From 2a47417b4715336ce6ebe2461aee5f41313be428 Mon Sep 17 00:00:00 2001
From: Mathis HERRIOT <197931332+0x485254@users.noreply.github.com>
Date: Sat, 17 May 2025 00:13:18 +0200
Subject: [PATCH] test(groups): add test case for database error handling in
 findById method

---
 .../modules/groups/services/groups.service.spec.ts    | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/backend/src/modules/groups/services/groups.service.spec.ts b/backend/src/modules/groups/services/groups.service.spec.ts
index 424396f..d30d80d 100644
--- a/backend/src/modules/groups/services/groups.service.spec.ts
+++ b/backend/src/modules/groups/services/groups.service.spec.ts
@@ -161,7 +161,16 @@ describe('GroupsService', () => {
       const id = 'nonexistent';
       mockDb.select.mockImplementationOnce(() => mockDbOperations);
       mockDbOperations.from.mockImplementationOnce(() => mockDbOperations);
-      mockDbOperations.where.mockImplementationOnce(() => [undefined]);
+      mockDbOperations.where.mockImplementationOnce(() => []);
+
+      await expect(service.findById(id)).rejects.toThrow(NotFoundException);
+    });
+
+    it('should throw NotFoundException if there is a database error', async () => {
+      const id = 'invalid-id';
+      mockDb.select.mockImplementationOnce(() => {
+        throw new Error('Database error');
+      });
 
       await expect(service.findById(id)).rejects.toThrow(NotFoundException);
     });