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Editing File: /home/maglabs/it/lib/internal/Magento/Framework/Data/Test/Unit/Tree/Node/CollectionTest.php

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

namespace Magento\Framework\Data\Test\Unit\Tree\Node;

use Magento\Framework\Data\Tree;
use Magento\Framework\Data\Tree\Node;
use Magento\Framework\Data\Tree\Node\Collection;
use PHPUnit\Framework\TestCase;

class CollectionTest extends TestCase
{
    /**
     * @var Collection
     */
    protected $collection;

protected function setUp(): void
    {
        $tree = new Tree();
        $node = new Node(['id' => 'root'], 'id', $tree);
        $this->collection = new Collection($node);
    }

public function testAdd()
    {
        $tree = new Tree();
        $this->assertSame($this->collection->count(), 0);
        $node = new Node(['id' => 'node1'], 'id', $tree);
        $this->collection->add($node);
        $this->assertSame($this->collection->count(), 1);
    }

public function testOffsets()
    {
        $tree = new Tree();
        $this->assertSame($this->collection->count(), 0);
        $node = new Node(['id' => 'node1'], 'id', $tree);
        $this->collection->add($node);
        $this->assertSame($this->collection->offsetExists('node1'), true);
        $this->collection->offsetSet('node1', 'Hello');
        $this->assertSame($this->collection->offsetExists('node1'), true);
        $this->assertSame($this->collection->offsetGet('node1'), 'Hello');
        $this->collection->offsetUnset('node1');
        $this->assertSame($this->collection->offsetExists('node1'), false);
    }

public function testDelete()
    {
        $tree = new Tree();
        $this->assertSame($this->collection->count(), 0);
        $node = new Node(['id' => 'node1'], 'id', $tree);
        $this->collection->add($node);
        $this->assertSame($this->collection->count(), 1);
        $this->collection->delete($node);
        $this->assertSame($this->collection->count(), 0);
    }

public function testLastNode()
    {
        $tree = new Tree();
        $node1 = new Node(['id' => 'node1'], 'id', $tree);
        $this->collection->add($node1);
        $node2 = new Node(['id' => 'node2'], 'id', $tree);
        $this->collection->add($node2);
        $this->assertSame($this->collection->lastNode(), $node2);
        $node3 = new Node(['id' => 'node3'], 'id', $tree);
        $this->collection->add($node3);

$this->assertSame($this->collection->lastNode(), $node3);
        $this->assertSame($this->collection->lastNode(), $node3);
        $this->collection->delete($node3);
        $this->assertSame($this->collection->lastNode(), $node2);
        $this->assertSame($this->collection->lastNode(), $node2);
    }

public function testSearchById()
    {
        $tree = new Tree();
        $node1 = new Node(['id' => 'node1'], 'id', $tree);
        $this->collection->add($node1);
        $node2 = new Node(['id' => 'node2'], 'id', $tree);
        $this->collection->add($node2);
        $this->assertSame($this->collection->lastNode(), $node2);
        $node3 = new Node(['id' => 'node3'], 'id', $tree);
        $this->collection->add($node3);

$this->assertSame($this->collection->searchById('node2'), $node2);
    }
}

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