added tests for diets

tests/Feature/Diet/IndexTest.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Tests\Feature\Diet;
+
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class IndexTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected User $user;
+
+    public function setUp(): void
+    {
+        $this->refreshApplicationWithLocale('en');
+
+        $this->user = User::factory()->create(['is_consultant' => true]);
+    }
+
+    public function test_index_page_success(): void
+    {
+        $response = $this
+            ->actingAs($this->user)
+            ->get(route('plan.index'));
+
+        $response
+            ->assertOk();
+    }
+}