Reproduce Rector issue

.github/workflows/other-tests.yml

@@ -169,6 +169,10 @@ jobs:
             cd e2e/swift-mailer
             composer install
             ../../phpstan
+          - |
+            cd e2e/rector-autoload
+            composer install
+            ../../phpstan
         include:
           - php-version: 8.0
             ini-values: memory_limit=256M

e2e/rector-autoload/.gitignore

@@ -0,0 +1 @@
+/vendor

e2e/rector-autoload/composer.json

@@ -0,0 +1,6 @@
+{
+	"require-dev": {
+		"phpstan/phpstan": "^1.6",
+		"rector/rector": "^0.12.23"
+	}
+}

e2e/rector-autoload/phpstan.neon.dist

@@ -0,0 +1,7 @@
+includes:
+	- phar://phpstan.phar/conf/bleedingEdge.neon
+
+parameters:
+	level: 8
+	paths:
+		- src

e2e/rector-autoload/src/ImportPhpUnitFunctionsRector.php

@@ -0,0 +1,64 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Luxemate\PhpstanRectorError\Rector\Rule;
+
+use PhpParser\Node;
+use Rector\Core\Rector\AbstractRector;
+use Rector\NodeTypeResolver\Node\AttributeKey;
+use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
+
+final class ImportPhpUnitFunctionsRector extends AbstractRector
+{
+	private const PHPUNIT_FUNC_NAMESPACE = 'PHPUnit\\Framework\\';
+
+	public function refactor(Node $node): ?Node
+	{
+		if (!$node instanceof Node\Name) {
+			return null;
+		}
+
+		$parentNode = $node->getAttribute(AttributeKey::PARENT_NODE);
+
+		if (!$parentNode instanceof Node\Expr\FuncCall) {
+			return null;
+		}
+
+		$resolvedName = $node->getAttribute(AttributeKey::RESOLVED_NAME);
+
+		// If node has a resolved name, then it's probably an internal function
+		if ($resolvedName instanceof Node\Name\FullyQualified) {
+			return null;
+		}
+
+		/** @var string $functionName */
+		$functionName = $this->getName($node);
+
+		// If function name is FQCN it's already imported or is a member of this file's namespace
+		if (str_contains($functionName, '\\')) {
+			return null;
+		}
+
+		$functionFullyQualifiedName = self::PHPUNIT_FUNC_NAMESPACE.$functionName;
+
+		if (!function_exists($functionFullyQualifiedName)) {
+			return null;
+		}
+
+		return new Node\Name\FullyQualified($functionFullyQualifiedName);
+	}
+
+	public function getRuleDefinition(): RuleDefinition
+	{
+		return new RuleDefinition(
+			'Adds import for non-imported PHPUnit functions.',
+			[]
+		);
+	}
+
+	public function getNodeTypes(): array
+	{
+		return [Node\Name::class];
+	}
+}