Viên ngọc phương Đông

<?php

namespace Roots\Soil\Tests\Unit;

use PHPUnit\Framework\TestCase;
use Roots\Soil\DOM;

class DomTest extends TestCase
{
 /** @test */
 public function it_should_iterate_all_nodes()
 {
 $doc = new DOM('
 foo
 bar
 biz
 baz
 ');

$count = 0;

$doc->each(function () use (&$count) {
            $count++;
        });

$this->assertEquals(4, $count);
    }

/** @test */
 public function it_evaluate_xpath_expression()
 {
 $doc = new DOM('
 foo
 bar
 biz
 baz
 ');

$count = $doc->xpath('//span')->length;

$this->assertEquals(4, $count);
    }

/** @test */
 public function it_proxies_domdoc_object()
 {
 /** @var \DOMDocument */
 $doc = new DOM('foo');

$node = $doc->getElementById('foo');
        $this->assertEquals('span', $node->tagName);

$node = $doc->lastChild;
        $this->assertEquals('span', $node->tagName);
    }

/** @test */
 public function it_returns_modified_html()
 {
 $doc = new DOM('foo');

$node = $doc->getElementById('foo');

$node->setAttribute('id', 'bar');

$this->assertEquals('foo', $doc->html());
 }
}