diff --git a/packages-tests/BetterPhpDocParser/PhpDocParser/TagValueNodeReprint/TagValueNodeReprintTest.php b/packages-tests/BetterPhpDocParser/PhpDocParser/TagValueNodeReprint/TagValueNodeReprintTest.php
index ef17037f8ea..1f2e341eb93 100644
--- a/packages-tests/BetterPhpDocParser/PhpDocParser/TagValueNodeReprint/TagValueNodeReprintTest.php
+++ b/packages-tests/BetterPhpDocParser/PhpDocParser/TagValueNodeReprint/TagValueNodeReprintTest.php
@@ -6,7 +6,6 @@
 
 use Iterator;
 use Nette\Utils\FileSystem;
-use Nette\Utils\Strings;
 use PhpParser\Comment\Doc;
 use PhpParser\Node;
 use PHPUnit\Framework\Attributes\DataProvider;
@@ -17,17 +16,12 @@
 use Rector\Core\PhpParser\Node\BetterNodeFinder;
 use Rector\FileSystemRector\Parser\FileInfoParser;
 use Rector\Testing\Fixture\FixtureFileFinder;
+use Rector\Testing\Fixture\FixtureSplitter;
 use Rector\Testing\Fixture\FixtureTempFileDumper;
 use Rector\Testing\PHPUnit\AbstractLazyTestCase;
 
 final class TagValueNodeReprintTest extends AbstractLazyTestCase
 {
-    /**
-     * @var string
-     * @see https://regex101.com/r/0UHYBt/1
-     */
-    private const SPLIT_LINE_REGEX = "#-----\n#";
-
     private FileInfoParser $fileInfoParser;
 
     private BetterNodeFinder $betterNodeFinder;
@@ -51,14 +45,9 @@ protected function setUp(): void
     #[DataProvider('provideDataNested')]
     public function test(string $filePath): void
     {
-        $fixtureFileContents = FileSystem::read($filePath);
-
-        [$fileContents, $nodeClass, $tagValueNodeClasses] = Strings::split(
-            $fixtureFileContents,
-            self::SPLIT_LINE_REGEX
-        );
+        [$fileContents, $nodeClass, $tagValueNodeClasses] = FixtureSplitter::split($filePath);
 
-        $nodeClass = trim((string) $nodeClass);
+        $nodeClass = trim($nodeClass);
         $tagValueNodeClasses = $this->splitListByEOL($tagValueNodeClasses);
 
         $fixtureFilePath = FixtureTempFileDumper::dump($fileContents);
diff --git a/packages-tests/BetterPhpDocParser/PhpDocParser/TagValueNodeReprint/TestModifyReprintTest.php b/packages-tests/BetterPhpDocParser/PhpDocParser/TagValueNodeReprint/TestModifyReprintTest.php
index e020510bcb1..adf4ff230f5 100644
--- a/packages-tests/BetterPhpDocParser/PhpDocParser/TagValueNodeReprint/TestModifyReprintTest.php
+++ b/packages-tests/BetterPhpDocParser/PhpDocParser/TagValueNodeReprint/TestModifyReprintTest.php
@@ -59,7 +59,7 @@ public function test(): void
         ]);
         $doctrineAnnotationTagValueNode->values[] = new ArrayItemNode($methodsCurlyListNode, 'methods');
 
-        $expectedDocContent = trim((string) $expectedContent);
+        $expectedDocContent = trim($expectedContent);
 
         $printedPhpDocInfo = $this->phpDocInfoPrinter->printFormatPreserving($phpDocInfo);
         $this->assertSame($expectedDocContent, $printedPhpDocInfo);
diff --git a/packages-tests/Comments/CommentRemover/CommentRemoverTest.php b/packages-tests/Comments/CommentRemover/CommentRemoverTest.php
index 3775d6dc504..395fd5d5d65 100644
--- a/packages-tests/Comments/CommentRemover/CommentRemoverTest.php
+++ b/packages-tests/Comments/CommentRemover/CommentRemoverTest.php
@@ -45,7 +45,7 @@ public function test(string $filePath): void
         $fileContent = $this->betterStandardPrinter->print($nodesWithoutComments);
         $fileContent = trim($fileContent);
 
-        $expectedContent = trim((string) $expectedOutputContents);
+        $expectedContent = trim($expectedOutputContents);
         $this->assertSame($fileContent, $expectedContent);
 
         // original nodes are not touched
diff --git a/packages/Testing/Fixture/FixtureSplitter.php b/packages/Testing/Fixture/FixtureSplitter.php
index 38a1320ff1d..2504a2308c4 100644
--- a/packages/Testing/Fixture/FixtureSplitter.php
+++ b/packages/Testing/Fixture/FixtureSplitter.php
@@ -4,40 +4,37 @@
 namespace Rector\Testing\Fixture;
 
 use Nette\Utils\FileSystem;
-use Nette\Utils\Strings;
 
 /**
  * @api
  */
 final class FixtureSplitter
 {
-    /**
-     * @api
-     * @var string
-     * @see https://regex101.com/r/zZDoyy/1
-     */
-    public const SPLIT_LINE_REGEX = '#\-\-\-\-\-\r?\n#';
-
     public static function containsSplit(string $fixtureFileContent): bool
     {
-        return Strings::match($fixtureFileContent, self::SPLIT_LINE_REGEX) !== null;
+        return str_contains($fixtureFileContent, "-----\n") || str_contains($fixtureFileContent, "-----\r\n");
     }
 
     /**
-     * @return array<string, string>
+     * @return array<int, string>
      */
     public static function split(string $filePath): array
     {
         $fixtureFileContents = FileSystem::read($filePath);
 
-        return Strings::split($fixtureFileContents, self::SPLIT_LINE_REGEX);
+        return self::splitFixtureFileContents($fixtureFileContents);
     }
 
     /**
-     * @return array<string, string>
+     * @return array<int, string>
      */
     public static function splitFixtureFileContents(string $fixtureFileContents): array
     {
-        return Strings::split($fixtureFileContents, self::SPLIT_LINE_REGEX);
+        $posixContents = explode("-----\n", $fixtureFileContents);
+        if (isset($posixContents[1])) {
+            return $posixContents;
+        }
+
+        return explode("-----\r\n", $fixtureFileContents);
     }
 }
diff --git a/rules/Naming/Matcher/ForeachMatcher.php b/rules/Naming/Matcher/ForeachMatcher.php
index 3fdb33bbd89..fbb4ece98e4 100644
--- a/rules/Naming/Matcher/ForeachMatcher.php
+++ b/rules/Naming/Matcher/ForeachMatcher.php
@@ -24,7 +24,7 @@ public function __construct(
     public function match(Foreach_ $foreach, ClassMethod|Closure|Function_ $functionLike): ?VariableAndCallForeach
     {
         $call = $this->callMatcher->matchCall($foreach);
-        if (!$call instanceof Node) {
+        if (! $call instanceof Node) {
             return null;
         }
 
diff --git a/rules/Naming/Matcher/VariableAndCallAssignMatcher.php b/rules/Naming/Matcher/VariableAndCallAssignMatcher.php
index d116c5ec237..04907493378 100644
--- a/rules/Naming/Matcher/VariableAndCallAssignMatcher.php
+++ b/rules/Naming/Matcher/VariableAndCallAssignMatcher.php
@@ -26,7 +26,7 @@ public function __construct(
     public function match(Assign $assign, ClassMethod|Closure|Function_ $functionLike): ?VariableAndCallAssign
     {
         $call = $this->callMatcher->matchCall($assign);
-        if (!$call instanceof Node) {
+        if (! $call instanceof Node) {
             return null;
         }
 
diff --git a/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php b/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php
index e885e270c82..63a9f964685 100644
--- a/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php
+++ b/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php
@@ -56,7 +56,7 @@ public function refactor(Node $node): ?Node
         }
 
         $returnTypeNode = $this->staticTypeMapper->mapPHPStanTypeToPhpParserNode($type, TypeKind::RETURN);
-        if (!$returnTypeNode instanceof Node) {
+        if (! $returnTypeNode instanceof Node) {
             return null;
         }
 
diff --git a/rules/TypeDeclaration/Rector/Property/AddPropertyTypeDeclarationRector.php b/rules/TypeDeclaration/Rector/Property/AddPropertyTypeDeclarationRector.php
index 1ad48fc5aa7..ed3b55c0b91 100644
--- a/rules/TypeDeclaration/Rector/Property/AddPropertyTypeDeclarationRector.php
+++ b/rules/TypeDeclaration/Rector/Property/AddPropertyTypeDeclarationRector.php
@@ -90,7 +90,7 @@ public function refactorWithScope(Node $node, Scope $scope): ?Node
                 $addPropertyTypeDeclaration->getType(),
                 TypeKind::PROPERTY
             );
-            if (!$typeNode instanceof Node) {
+            if (! $typeNode instanceof Node) {
                 // invalid configuration
                 throw new ShouldNotHappenException();
             }
diff --git a/rules/TypeDeclaration/Rector/Property/TypedPropertyFromAssignsRector.php b/rules/TypeDeclaration/Rector/Property/TypedPropertyFromAssignsRector.php
index a1260455fc2..9863a266999 100644
--- a/rules/TypeDeclaration/Rector/Property/TypedPropertyFromAssignsRector.php
+++ b/rules/TypeDeclaration/Rector/Property/TypedPropertyFromAssignsRector.php
@@ -147,7 +147,7 @@ public function refactor(Node $node): ?Node
 
             $inferredType = $this->decorateTypeWithNullableIfDefaultPropertyNull($property, $inferredType);
             $typeNode = $this->staticTypeMapper->mapPHPStanTypeToPhpParserNode($inferredType, TypeKind::PROPERTY);
-            if (!$typeNode instanceof Node) {
+            if (! $typeNode instanceof Node) {
                 continue;
             }