v5.0.0 update

tests/Unit/Model/CountryTest.php

@@ -0,0 +1,20 @@
+<?php
+
+use Crater\Models\Address;
+use Crater\Models\Country;
+use Illuminate\Support\Facades\Artisan;
+
+beforeEach(function () {
+    Artisan::call('db:seed', ['--class' => 'DatabaseSeeder', '--force' => true]);
+    Artisan::call('db:seed', ['--class' => 'DemoSeeder', '--force' => true]);
+});
+
+test('country has many addresses', function () {
+    $country = Country::find(1);
+
+    $address = Address::factory()->count(5)->create([
+        'country_id' => $country->id,
+    ]);
+
+    $this->assertTrue($country->address()->exists());
+});