AddDoesNotPerformAssertionToNonAssertingTestRector.php

<?php

declare(strict_types=1);

namespace Rector\PHPUnit\PHPUnit60\Rector\ClassMethod;

use PhpParser\Node;
use PhpParser\Node\Stmt\ClassMethod;
use PHPStan\PhpDocParser\Ast\PhpDoc\GenericTagValueNode;
use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocTagNode;
use Rector\Core\Rector\AbstractRector;
use Rector\Php80\NodeAnalyzer\PhpAttributeAnalyzer;
use Rector\PHPUnit\NodeAnalyzer\AssertCallAnalyzer;
use Rector\PHPUnit\NodeAnalyzer\MockedVariableAnalyzer;
use Rector\PHPUnit\NodeAnalyzer\TestsNodeAnalyzer;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;

/**
 * @changelog https://phpunit.readthedocs.io/en/9.5/annotations.html#doesnotperformassertions
 * @changelog https://github.com/sebastianbergmann/phpunit/issues/2484
 *
 * @see \Rector\PHPUnit\Tests\PHPUnit60\Rector\ClassMethod\AddDoesNotPerformAssertionToNonAssertingTestRector\AddDoesNotPerformAssertionToNonAssertingTestRectorTest
 */
final class AddDoesNotPerformAssertionToNonAssertingTestRector extends AbstractRector
{
    public function __construct(
        private readonly TestsNodeAnalyzer $testsNodeAnalyzer,
        private readonly AssertCallAnalyzer $assertCallAnalyzer,
        private readonly MockedVariableAnalyzer $mockedVariableAnalyzer,
        private readonly PhpAttributeAnalyzer $phpAttributeAnalyzer
    ) {
    }

    public function getRuleDefinition(): RuleDefinition
    {
        return new RuleDefinition(
            'Tests without assertion will have @doesNotPerformAssertion',
            [
                new CodeSample(
                    <<<'CODE_SAMPLE'
use PHPUnit\Framework\TestCase;

class SomeClass extends TestCase
{
    public function test()
    {
        $nothing = 5;
    }
}
CODE_SAMPLE
                    ,
                    <<<'CODE_SAMPLE'
use PHPUnit\Framework\TestCase;

class SomeClass extends TestCase
{
    /**
     * @doesNotPerformAssertions
     */
    public function test()
    {
        $nothing = 5;
    }
}
CODE_SAMPLE
                ),
            ]
        );
    }

    /**
     * @return array<class-string<Node>>
     */
    public function getNodeTypes(): array
    {
        return [ClassMethod::class];
    }

    /**
     * @param ClassMethod $node
     */
    public function refactor(Node $node): ?Node
    {
        if ($this->shouldSkipClassMethod($node)) {
            return null;
        }

        $phpDocInfo = $this->phpDocInfoFactory->createFromNodeOrEmpty($node);
        $phpDocInfo->addPhpDocTagNode(new PhpDocTagNode('@doesNotPerformAssertions', new GenericTagValueNode('')));

        return $node;
    }

    private function shouldSkipClassMethod(ClassMethod $classMethod): bool
    {
        if (! $this->testsNodeAnalyzer->isInTestClass($classMethod)) {
            return true;
        }

        if (! $this->testsNodeAnalyzer->isTestClassMethod($classMethod)) {
            return true;
        }

        if ($classMethod->isAbstract()) {
            return true;
        }

        if ($this->hasAssertingAnnotationOrAttribute($classMethod)) {
            return true;
        }

        $this->assertCallAnalyzer->resetNesting();
        if ($this->assertCallAnalyzer->containsAssertCall($classMethod)) {
            return true;
        }

        return $this->mockedVariableAnalyzer->containsMockAsUsedVariable($classMethod);
    }

    private function hasAssertingAnnotationOrAttribute(ClassMethod $classMethod): bool
    {
        $phpDocInfo = $this->phpDocInfoFactory->createFromNodeOrEmpty($classMethod);

        if ($phpDocInfo->hasByNames(['doesNotPerformAssertions', 'expectedException'])) {
            return true;
        }

        return $this->phpAttributeAnalyzer->hasPhpAttribute(
            $classMethod,
            'PHPUnit\Framework\Attributes\DoesNotPerformAssertions'
        );
    }
}