more tests

.vscode/launch.json

+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "launch",
+            "name": "Jest: watch current file",
+            "program": "${workspaceFolder}/node_modules/jest/bin/jest",
+            "args": [
+                "${fileBasename}",
+                "--runInBand",
+                "--verbose",
+                "-i",
+                "--no-cache",
+                "--watchAll",
+                "--testTimeout=1000000000",
+            ],
+            "console": "integratedTerminal",
+            "internalConsoleOptions": "neverOpen"
+        }
+    ]
+}
\ No newline at end of file

jest/mocks/next-router.ts

@@ -2,7 +2,7 @@ import type { NextRouter } from 'next/router';
 
 export const router = {
   query: {},
-  push: jest.fn(),
+  push: jest.fn(() => Promise.resolve()),
 };
 
 export const useRouter = jest.fn<unknown, Array<Partial<NextRouter>>>(() => (router));