<?php

namespace Tests\Unit;

use PHPUnit\Framework\TestCase;
use System\Classes\Config;

class ConfigTest extends TestCase
{
    protected function tearDown(): void
    {
        // Сбрасываем загруженный конфиг через рефлексию
        $ref  = new \ReflectionClass(Config::class);
        $prop = $ref->getProperty('config');
        $prop->setAccessible(true);
        $prop->setValue(null, null);
    }

    public function testGetSectionReturnsArray(): void
    {
        $db = Config::get('db');
        $this->assertIsArray($db);
        $this->assertArrayHasKey('default', $db);
    }

    public function testGetGroupReturnsValue(): void
    {
        $params = Config::get('session', 'cookie_params');
        $this->assertIsArray($params);
        $this->assertArrayHasKey('lifetime', $params);
    }

    public function testGetMissingKeyReturnsNull(): void
    {
        $this->assertNull(Config::get('nonexistent'));
        $this->assertNull(Config::get('nonexistent', 'group'));
    }

    public function testSetOverridesValue(): void
    {
        Config::set('foo', ['bar' => 'baz']);
        $this->assertSame(['bar' => 'baz'], Config::get('foo'));
    }

    public function testMergeDeep(): void
    {
        $base     = ['a' => ['x' => 1, 'y' => 2], 'b' => 3];
        $override = ['a' => ['y' => 99, 'z' => 4], 'b' => 10];
        $result   = Config::merge($base, $override);

        $this->assertSame(1,  $result['a']['x']);
        $this->assertSame(99, $result['a']['y']);
        $this->assertSame(4,  $result['a']['z']);
        $this->assertSame(10, $result['b']);
    }
}