/
HtmlDriver.php
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/
HtmlDriver.php
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<?php
namespace Spatie\Snapshots\Drivers;
use DOMDocument;
use PHPUnit\Framework\Assert;
use Spatie\Snapshots\Driver;
use Spatie\Snapshots\Exceptions\CantBeSerialized;
class HtmlDriver implements Driver
{
public function serialize($data): string
{
if (! is_string($data)) {
throw new CantBeSerialized('Only strings can be serialized to html');
}
if ($data === '') {
return "\n";
}
$domDocument = new DOMDocument('1.0');
$domDocument->preserveWhiteSpace = false;
$domDocument->formatOutput = true;
@$domDocument->loadHTML($data, LIBXML_HTML_NODEFDTD); // to ignore HTML5 errors
$htmlValue = $domDocument->saveHTML();
// Normalize line endings for cross-platform tests.
if (PHP_OS_FAMILY === 'Windows') {
$htmlValue = implode("\n", explode("\r\n", $htmlValue));
}
return $htmlValue;
}
public function extension(): string
{
return 'html';
}
public function match($expected, $actual)
{
Assert::assertEquals($expected, $this->serialize($actual));
}
}