Move some tests into their own subfodlers

tests/Feature/Admin/AdminHomeControllerTest.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace Tests\Feature\Admin;
+
+use Tests\TestCase;
+
+class AdminHomeControllerTest extends TestCase
+{
+    public function test_admin_homepage()
+    {
+        $response = $this->withSession(['loggedin' => true])
+                         ->get('/admin');
+        $response->assertViewIs('admin.welcome');
+    }
+}