<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
declare(strict_types=1);

namespace Magento\Framework\View\Test\Unit;

use Magento\Framework\Config\View;
use Magento\Framework\Config\ViewFactory;
use Magento\Framework\TestFramework\Unit\Helper\ObjectManager as ObjectManagerHelper;
use Magento\Framework\View\Asset\Repository;
use Magento\Framework\View\Config;
use Magento\Theme\Model\Theme;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;

class ConfigTest extends TestCase
{
/** @var Config */
protected $config;

/** @var ObjectManagerHelper */
protected $objectManagerHelper;

/** @var Repository|MockObject */
protected $repositoryMock;

/**
* @var ViewFactory|MockObject
*/
protected $viewConfigFactoryMock;

protected function setUp(): void
{
$this->repositoryMock = $this->createMock(Repository::class);
$this->viewConfigFactoryMock = $this->createMock(ViewFactory::class);
$this->objectManagerHelper = new ObjectManagerHelper($this);
$this->config = $this->objectManagerHelper->getObject(
Config::class,
[
'assetRepo' => $this->repositoryMock,
'viewConfigFactory' => $this->viewConfigFactoryMock
]
);
}

public function testGetViewConfig()
{
$themeCode = 'area/theme';

$themeMock = $this->createPartialMock(Theme::class, ['getFullPath']);
$themeMock->expects($this->atLeastOnce())
->method('getFullPath')
->willReturn($themeCode);
$params = [
'themeModel' => $themeMock,
'area' => 'frontend'
];
$this->repositoryMock->expects($this->atLeastOnce())
->method('updateDesignParams')
->with($params)->willReturnSelf();
$configViewMock = $this->createMock(View::class);
$this->viewConfigFactoryMock->expects($this->once())
->method('create')
->willReturn($configViewMock);
$this->assertInstanceOf(View::class, $this->config->getViewConfig($params));
// lazy load test
$this->assertInstanceOf(View::class, $this->config->getViewConfig($params));
}
}