CreateStubOverCreateMockArgRector.php

<?php

declare(strict_types=1);

namespace Rector\PHPUnit\PHPUnit120\Rector\CallLike;

use PhpParser\Node;
use PhpParser\Node\ArrayItem;
use PhpParser\Node\Expr\MethodCall;
use PhpParser\Node\Expr\New_;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Identifier;
use Rector\PHPStan\ScopeFetcher;
use Rector\PHPUnit\Enum\PHPUnitClassName;
use Rector\Rector\AbstractRector;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;

/**
 * Related change in PHPUnit 12 https://phpunit.expert/articles/testing-with-and-without-dependencies.html
 *
 * @see \Rector\PHPUnit\Tests\PHPUnit120\Rector\CallLike\CreateStubOverCreateMockArgRector\CreateStubOverCreateMockArgRectorTest
 */
final class CreateStubOverCreateMockArgRector extends AbstractRector
{
    public function getRuleDefinition(): RuleDefinition
    {
        return new RuleDefinition(
            'Use createStub() over createMock() when used as argument or array value and does not add any mock requirements',
            [
                new CodeSample(
                    <<<'CODE_SAMPLE'
use PHPUnit\Framework\TestCase;
final class SomeTest extends TestCase
{
    public function test()
    {
        $this->someMethod($this->createMock(SomeClass::class));
    }

    private function someMethod($someClass)
    {
    }
}
CODE_SAMPLE
                    ,
                    <<<'CODE_SAMPLE'
use PHPUnit\Framework\TestCase;

final class SomeTest extends TestCase
{
    public function test()
    {
        $this->someMethod($this->createStub(SomeClass::class));
    }

    private function someMethod($someClass)
    {
    }
}
CODE_SAMPLE
                ),

            ]
        );
    }

    /**
     * @return array<class-string<Node>>
     */
    public function getNodeTypes(): array
    {
        return [StaticCall::class, MethodCall::class, New_::class, ArrayItem::class];
    }

    /**
     * @param MethodCall|StaticCall|New_|ArrayItem $node
     */
    public function refactor(Node $node): MethodCall|StaticCall|New_|ArrayItem|null
    {
        $scope = ScopeFetcher::fetch($node);
        if (! $scope->isInClass()) {
            return null;
        }

        $classReflection = $scope->getClassReflection();
        if (! $classReflection->is(PHPUnitClassName::TEST_CASE)) {
            return null;
        }

        if ($node instanceof ArrayItem) {
            if (! $node->value instanceof MethodCall) {
                return null;
            }

            $methodCall = $node->value;
            if (! $this->isName($methodCall->name, 'createMock')) {
                return null;
            }

            $methodCall->name = new Identifier('createStub');

            return $node;
        }

        $hasChanges = false;

        if ($node->isFirstClassCallable()) {
            return null;
        }

        foreach ($node->getArgs() as $arg) {
            if (! $arg->value instanceof MethodCall) {
                continue;
            }

            $methodCall = $arg->value;
            if (! $this->isName($methodCall->name, 'createMock')) {
                continue;
            }

            $methodCall->name = new Identifier('createStub');
            $hasChanges = true;
        }

        if ($hasChanges) {
            return $node;
        }

        return null;
    }
}