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

namespace Magento\Checkout\Test\Unit\Block\Cart;

use Magento\Checkout\Block\Cart\Grid;
use Magento\Checkout\Model\Session;
use Magento\Framework\Api\ExtensionAttribute\JoinProcessorInterface;
use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\TestFramework\Unit\Helper\ObjectManager as ObjectManagerHelper;
use Magento\Framework\View\LayoutInterface;
use Magento\Quote\Model\Quote;
use Magento\Quote\Model\Quote\Item;
use Magento\Quote\Model\ResourceModel\Quote\Item\Collection;
use Magento\Quote\Model\ResourceModel\Quote\Item\CollectionFactory;
use Magento\Store\Api\Data\StoreInterface;
use Magento\Store\Model\ScopeInterface;
use Magento\Store\Model\StoreManagerInterface;
use Magento\Theme\Block\Html\Pager;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;

/**
 * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
 */
class GridTest extends TestCase
{
    /**
     * @var Grid
     */
    private $block;

    /**
     * @var MockObject
     */
    private $itemCollectionFactoryMock;

    /**
     * @var MockObject
     */
    private $joinAttributeProcessorMock;

    /**
     * @var MockObject
     */
    private $scopeConfigMock;

    /**
     * @var MockObject
     */
    private $checkoutSessionMock;

    /**
     * @var MockObject
     */
    private $itemCollectionMock;

    /**
     * @var MockObject
     */
    private $quoteMock;

    /**
     * @var MockObject
     */
    private $layoutMock;

    /**
     * @var MockObject
     */
    private $pagerBlockMock;

    /**
     * @inheritDoc
     */
    protected function setUp(): void
    {
        $objectManagerHelper = new ObjectManagerHelper($this);
        $this->itemCollectionFactoryMock =
            $this->getMockBuilder(CollectionFactory::class)
                ->disableOriginalConstructor()
                ->onlyMethods(['create'])
                ->getMock();
        $this->joinAttributeProcessorMock =
            $this->getMockBuilder(JoinProcessorInterface::class)
                ->getMockForAbstractClass();
        $this->scopeConfigMock = $this->getMockBuilder(ScopeConfigInterface::class)
            ->getMockForAbstractClass();
        $this->checkoutSessionMock = $this->getMockBuilder(Session::class)
            ->disableOriginalConstructor()
            ->getMock();
        $this->itemCollectionMock = $objectManagerHelper
            ->getCollectionMock(Collection::class, []);
        $this->quoteMock = $this->getMockBuilder(Quote::class)
            ->onlyMethods(['getAllVisibleItems', 'getItemsCount'])
            ->disableOriginalConstructor()
            ->getMock();
        $this->layoutMock = $this->getMockBuilder(LayoutInterface::class)
            ->getMockForAbstractClass();
        $this->pagerBlockMock = $this->getMockBuilder(Pager::class)
            ->disableOriginalConstructor()
            ->getMock();
        $this->checkoutSessionMock->expects($this->any())->method('getQuote')->willReturn($this->quoteMock);
        $this->quoteMock->expects($this->any())->method('getAllVisibleItems')->willReturn([]);
        $this->block = $objectManagerHelper->getObject(
            Grid::class,
            [
                'itemCollectionFactory' => $this->itemCollectionFactoryMock,
                'joinAttributeProcessor' => $this->joinAttributeProcessorMock,
                'scopeConfig' => $this->scopeConfigMock,
                'checkoutSession' => $this->checkoutSessionMock,
                'layout' => $this->layoutMock,
                'data' => ['template' => 'cart/form1.phtml']
            ]
        );
    }

    /**
     * @return void
     */
    public function testGetTemplate(): void
    {
        $this->assertEquals('cart/form1.phtml', $this->block->getTemplate());
    }

    /**
     * @return void
     */
    public function testGetItemsForGrid(): void
    {
        $this->getMockItemsForGrid();
        $this->assertEquals($this->itemCollectionMock, $this->block->getItemsForGrid());
    }

    /**
     * @return void
     * @cover \Magento\Checkout\Block\Cart\Grid::_prepareLayout
     */
    public function testSetLayout(): void
    {
        $itemsCount = 150;
        $availableLimit = 20;
        $this->getMockItemsForGrid();
        $this->quoteMock->expects($this->once())->method('getItemsCount')->willReturn($itemsCount);
        $this->scopeConfigMock
            ->method('getValue')
            ->withConsecutive(
                [Grid::XPATH_CONFIG_NUMBER_ITEMS_TO_DISPLAY_PAGER, ScopeInterface::SCOPE_STORE, null],
                [Grid::XPATH_CONFIG_NUMBER_ITEMS_TO_DISPLAY_PAGER, ScopeInterface::SCOPE_STORE, null]
            )
            ->willReturnOnConsecutiveCalls(20, $availableLimit);
        $this->layoutMock
            ->expects($this->once())
            ->method('createBlock')
            ->with(Pager::class)
            ->willReturn($this->pagerBlockMock);
        $this->pagerBlockMock
            ->expects($this->once())
            ->method('setAvailableLimit')
            ->with([$availableLimit => $availableLimit])
            ->willReturnSelf();
        $this->pagerBlockMock
            ->expects($this->once())
            ->method('setCollection')
            ->with($this->itemCollectionMock)
            ->willReturnSelf();
        $this->layoutMock->expects($this->once())->method('setChild')->with(null, null, 'pager');
        $this->itemCollectionMock->expects($this->once())->method('load')->willReturnSelf();
        $this->quoteMock->expects($this->never())->method('getAllVisibleItems');
        $this->itemCollectionMock->expects($this->once())->method('getItems')->willReturn([]);
        $this->block->setLayout($this->layoutMock);
    }

    /**
     * @return void
     */
    public function testGetItems(): void
    {
        $this->getMockItemsForGrid();
        $this->quoteMock->expects($this->once())->method('getItemsCount')->willReturn(20);
        $this->itemCollectionMock->expects($this->once())->method('getItems')->willReturn(['expected']);
        $this->assertEquals(['expected'], $this->block->getItems());
    }

    /**
     * @return void
     */
    private function getMockItemsForGrid(): void
    {
        $this->itemCollectionFactoryMock
            ->expects($this->once())
            ->method('create')
            ->willReturn($this->itemCollectionMock);
        $this->checkoutSessionMock->expects($this->any())->method('getQuote')->willReturn($this->quoteMock);
        $this->itemCollectionMock->expects($this->once())->method('setQuote')->with($this->quoteMock)->willReturnSelf();
        $this->itemCollectionMock
            ->expects($this->once())
            ->method('addFieldToFilter')
            ->with('parent_item_id', ['null' => true])
            ->willReturnSelf();
        $this->joinAttributeProcessorMock->expects($this->once())->method('process')->with($this->itemCollectionMock);
    }

    /**
     * @return void
     * @cover \Magento\Checkout\Block\Cart::prepareItemUrls
     */
    public function testGetItemsIfCustomItemsExists(): void
    {
        $itemMock = $this->getMockBuilder(Item::class)
            ->disableOriginalConstructor()
            ->getMock();
        $storeManager = $this->getMockBuilder(StoreManagerInterface::class)
            ->getMockForAbstractClass();
        $storeMock = $this->getMockBuilder(StoreInterface::class)
            ->getMockForAbstractClass();
        $storeManager->expects($this->once())->method('getStore')->willReturn($storeMock);
        $objectManagerHelper = new ObjectManagerHelper($this);
        $this->block = $objectManagerHelper->getObject(
            Grid::class,
            [
                'itemCollectionFactory' => $this->itemCollectionFactoryMock,
                'joinAttributeProcessor' => $this->joinAttributeProcessorMock,
                'scopeConfig' => $this->scopeConfigMock,
                'checkoutSession' => $this->checkoutSessionMock,
                'layout' => $this->layoutMock,
                'data' => ['custom_items' => [$itemMock]],
                'storeManager' => $storeManager
            ]
        );
        $this->assertEquals([$itemMock], $this->block->getItems());
    }

    /**
     * @return void
     */
    public function testGetItemsWhenPagerNotVisible(): void
    {
        $this->assertEquals([], $this->block->getItems());
    }
}