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<?php declare(strict_types=1);
/*
* This file is part of sebastian/complexity.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace SebastianBergmann\Complexity;
use function file_get_contents;
use PhpParser\NodeTraverser;
use PhpParser\ParserFactory;
use PHPUnit\Framework\Attributes\CoversClass;
use PHPUnit\Framework\Attributes\Small;
use PHPUnit\Framework\TestCase;
#[CoversClass(CyclomaticComplexityCalculatingVisitor::class)]
#[Small]
final class CyclomaticComplexityCalculatingVisitorTest extends TestCase
{
public function testCalculatesCyclomaticComplexityForAbstractSyntaxTree(): void
{
$source = file_get_contents(__DIR__ . '/../_fixture/example_function.php');
$this->assertIsString($source);
$nodes = (new ParserFactory)->createForHostVersion()->parse($source);
$this->assertNotNull($nodes);
$traverser = new NodeTraverser;
$visitor = new CyclomaticComplexityCalculatingVisitor;
$traverser->addVisitor($visitor);
/* @noinspection UnusedFunctionResultInspection */
$traverser->traverse($nodes);
$this->assertSame(16, $visitor->cyclomaticComplexity());
}
}
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