[Testing] Reset source locator after each Rector test

src/Testing/PHPUnit/AbstractRectorTestCase.php

@@ -134,6 +134,9 @@ protected function tearDown(): void
         if (is_string($this->inputFilePath)) {
             FileSystem::delete($this->inputFilePath);
         }
+
+        // a next test that does not set its own paths would still locate the deleted file
+        $this->dynamicSourceLocatorProvider->reset();
     }
 
     protected static function yieldFilesFromDirectory(string $directory, string $suffix = '*.php.inc'): Iterator

tests/NodeManipulator/ClassDependencyManipulatorTest.php

@@ -22,6 +22,7 @@
 use Rector\NodeManipulator\ClassDependencyManipulator;
 use Rector\PostRector\ValueObject\PropertyMetadata;
 use Rector\Testing\PHPUnit\AbstractLazyTestCase;
+use Rector\ValueObject\PhpVersion;
 use Rector\ValueObject\PhpVersionFeature;
 
 final class ClassDependencyManipulatorTest extends AbstractLazyTestCase
@@ -42,6 +43,12 @@ protected function setUp(): void
         SimpleParameterProvider::setParameter(Option::PHP_VERSION_FEATURES, PhpVersionFeature::READONLY_PROPERTY);
     }
 
+    protected function tearDown(): void
+    {
+        // reset to the test default, so the next test class in the same process does not run on PHP 8.1
+        SimpleParameterProvider::setParameter(Option::PHP_VERSION_FEATURES, PhpVersion::PHP_10);
+    }
+
     public function testEmptyClass(): void
     {
         $someClass = new Class_(new Identifier('EmptyClass'));

tests/Testing/ResetSourceLocator/Fixture/some_function.php.inc

@@ -0,0 +1,19 @@
+<?php
+
+namespace Rector\Tests\Testing\ResetSourceLocator\Fixture;
+
+function some_function()
+{
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\Testing\ResetSourceLocator\Fixture;
+
+function some_function(): void
+{
+}
+
+?>

tests/Testing/ResetSourceLocator/ResetSourceLocatorTest.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Tests\Testing\ResetSourceLocator;
+
+use PHPUnit\Framework\Attributes\Depends;
+use Rector\NodeTypeResolver\Reflection\BetterReflection\SourceLocatorProvider\DynamicSourceLocatorProvider;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class ResetSourceLocatorTest extends AbstractRectorTestCase
+{
+    public function testProcessFixture(): void
+    {
+        $this->doTestFile(__DIR__ . '/Fixture/some_function.php.inc');
+    }
+
+    #[Depends('testProcessFixture')]
+    public function testNextTestDoesNotLocateDeletedInputFile(): void
+    {
+        $dynamicSourceLocatorProvider = $this->make(DynamicSourceLocatorProvider::class);
+
+        $this->assertTrue($dynamicSourceLocatorProvider->arePathsEmpty());
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/configured_rule.php';
+    }
+}

tests/Testing/ResetSourceLocator/config/configured_rule.php

@@ -0,0 +1,9 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\TypeDeclaration\Rector\Function_\AddFunctionVoidReturnTypeWhereNoReturnRector;
+
+return RectorConfig::configure()
+    ->withRules([AddFunctionVoidReturnTypeWhereNoReturnRector::class]);