fix(array): add test for issue #259 (#263)

Author: Korbeil

tests/AutoMapperTest/ArrayNotNested/expected.array.data

@@ -0,0 +1,5 @@
+AutoMapper\Tests\AutoMapperTest\ArrayNested\UserEntity {
+  +"roles": [
+    "ROLE_USER"
+  ]
+}

tests/AutoMapperTest/ArrayNotNested/map.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace AutoMapper\Tests\AutoMapperTest\ArrayNested;
+
+use AutoMapper\Tests\AutoMapperBuilder;
+
+class UserApiResource
+{
+    public array $roles; // ["ROLE_USER"]
+}
+
+class UserEntity
+{
+    public function setRoles(array $roles)
+    {
+        $this->roles = $roles; // [["ROLE_USER"]];
+    }
+}
+
+return (function () {
+    $autoMapper = AutoMapperBuilder::buildAutoMapper();
+
+    $userApiResource = new UserApiResource();
+    $userApiResource->roles = ['ROLE_USER'];
+
+    yield 'array' => $autoMapper->map($userApiResource, UserEntity::class);
+})();