diff --git a/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapConfigReaderTest.php b/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapConfigReaderTest.php
index 10bfdbed6fbb6..cdb44b5f12b69 100644
--- a/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapConfigReaderTest.php
+++ b/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapConfigReaderTest.php
@@ -26,17 +26,17 @@ class ImportMapConfigReaderTest extends TestCase
     protected function setUp(): void
     {
         $this->filesystem = new Filesystem();
-        if (!file_exists(__DIR__ . '/../Fixtures/importmaps_for_writing')) {
-            $this->filesystem->mkdir(__DIR__ . '/../Fixtures/importmaps_for_writing');
+        if (!file_exists(__DIR__.'/../Fixtures/importmaps_for_writing')) {
+            $this->filesystem->mkdir(__DIR__.'/../Fixtures/importmaps_for_writing');
         }
-        if (!file_exists(__DIR__ . '/../Fixtures/importmaps_for_writing/assets')) {
-            $this->filesystem->mkdir(__DIR__ . '/../Fixtures/importmaps_for_writing/assets');
+        if (!file_exists(__DIR__.'/../Fixtures/importmaps_for_writing/assets')) {
+            $this->filesystem->mkdir(__DIR__.'/../Fixtures/importmaps_for_writing/assets');
         }
     }
 
     protected function tearDown(): void
     {
-        $this->filesystem->remove(__DIR__ . '/../Fixtures/importmaps_for_writing');
+        $this->filesystem->remove(__DIR__.'/../Fixtures/importmaps_for_writing');
     }
 
     public function testGetEntriesAndWriteEntries()
@@ -63,7 +63,7 @@ public function testGetEntriesAndWriteEntries()
     ],
 ];
 EOF;
-        file_put_contents(__DIR__ . '/../Fixtures/importmaps_for_writing/importmap.php', $importMap);
+        file_put_contents(__DIR__.'/../Fixtures/importmaps_for_writing/importmap.php', $importMap);
 
         $remotePackageStorage = $this->createMock(RemotePackageStorage::class);
         $remotePackageStorage->expects($this->any())
@@ -72,7 +72,7 @@ public function testGetEntriesAndWriteEntries()
                 return '/path/to/vendor/'.$packageModuleSpecifier.'.'.$type->value;
             });
         $reader = new ImportMapConfigReader(
-            __DIR__ . '/../Fixtures/importmaps_for_writing/importmap.php',
+            __DIR__.'/../Fixtures/importmaps_for_writing/importmap.php',
             $remotePackageStorage,
         );
         $entries = $reader->getEntries();
@@ -100,24 +100,24 @@ public function testGetEntriesAndWriteEntries()
         $this->assertSame('package/with_file.js', $packageWithFileEntry->packageModuleSpecifier);
 
         // now save the original raw data from importmap.php and delete the file
-        $originalImportMapData = (static fn () => include __DIR__ . '/../Fixtures/importmaps_for_writing/importmap.php')();
-        unlink(__DIR__ . '/../Fixtures/importmaps_for_writing/importmap.php');
+        $originalImportMapData = (static fn () => include __DIR__.'/../Fixtures/importmaps_for_writing/importmap.php')();
+        unlink(__DIR__.'/../Fixtures/importmaps_for_writing/importmap.php');
         // dump the entries back to the file
         $reader->writeEntries($entries);
-        $newImportMapData = (static fn () => include __DIR__ . '/../Fixtures/importmaps_for_writing/importmap.php')();
+        $newImportMapData = (static fn () => include __DIR__.'/../Fixtures/importmaps_for_writing/importmap.php')();
 
         $this->assertSame($originalImportMapData, $newImportMapData);
     }
 
     public function testGetRootDirectory()
     {
-        $configReader = new ImportMapConfigReader(__DIR__ . '/../Fixtures/importmap.php', $this->createMock(RemotePackageStorage::class));
-        $this->assertSame(__DIR__ . '/../Fixtures', $configReader->getRootDirectory());
+        $configReader = new ImportMapConfigReader(__DIR__.'/../Fixtures/importmap.php', $this->createMock(RemotePackageStorage::class));
+        $this->assertSame(__DIR__.'/../Fixtures', $configReader->getRootDirectory());
     }
 
     public function testFindRootImportMapEntry()
     {
-        $configReader = new ImportMapConfigReader(__DIR__.'/../fixtures/importmap.php', $this->createMock(RemotePackageStorage::class));
+        $configReader = new ImportMapConfigReader(__DIR__.'/../Fixtures/importmap.php', $this->createMock(RemotePackageStorage::class));
         $entry = $configReader->findRootImportMapEntry('file2');
         $this->assertSame('file2', $entry->importName);
         $this->assertSame('file2.js', $entry->path);
diff --git a/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapGeneratorTest.php b/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapGeneratorTest.php
index 036d1449b2311..b8f6e767ae6b0 100644
--- a/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapGeneratorTest.php
+++ b/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapGeneratorTest.php
@@ -32,15 +32,12 @@ class ImportMapGeneratorTest extends TestCase
     private ImportMapGenerator $importMapGenerator;
 
     private Filesystem $filesystem;
-    private static string $writableRoot = __DIR__.'/../fixtures/importmaps_for_writing';
+    private static string $writableRoot = __DIR__.'/../Fixtures/importmaps_for_writing';
 
     protected function setUp(): void
     {
         $this->filesystem = new Filesystem();
-        if (!file_exists(__DIR__.'/../fixtures/importmaps_for_writing')) {
-            $this->filesystem->mkdir(self::$writableRoot);
-        }
-        if (!file_exists(__DIR__.'/../fixtures/importmaps_for_writing/assets')) {
+        if (!file_exists(self::$writableRoot.'/assets')) {
             $this->filesystem->mkdir(self::$writableRoot.'/assets');
         }
     }
diff --git a/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapManagerTest.php b/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapManagerTest.php
index 43f3e3de5fa32..e232a2a60e507 100644
--- a/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapManagerTest.php
+++ b/src/Symfony/Component/AssetMapper/Tests/ImportMap/ImportMapManagerTest.php
@@ -35,15 +35,15 @@ class ImportMapManagerTest extends TestCase
     private ImportMapManager $importMapManager;
 
     private Filesystem $filesystem;
-    private static string $writableRoot = __DIR__ . '/../Fixtures/importmaps_for_writing';
+    private static string $writableRoot = __DIR__.'/../Fixtures/importmaps_for_writing';
 
     protected function setUp(): void
     {
         $this->filesystem = new Filesystem();
-        if (!file_exists(__DIR__ . '/../Fixtures/importmaps_for_writing')) {
+        if (!file_exists(__DIR__.'/../Fixtures/importmaps_for_writing')) {
             $this->filesystem->mkdir(self::$writableRoot);
         }
-        if (!file_exists(__DIR__ . '/../Fixtures/importmaps_for_writing/assets')) {
+        if (!file_exists(__DIR__.'/../Fixtures/importmaps_for_writing/assets')) {
             $this->filesystem->mkdir(self::$writableRoot.'/assets');
         }
     }
diff --git a/src/Symfony/Component/AssetMapper/Tests/ImportMap/RemotePackageDownloaderTest.php b/src/Symfony/Component/AssetMapper/Tests/ImportMap/RemotePackageDownloaderTest.php
index c43f4993e257c..bb71b6c347a6c 100644
--- a/src/Symfony/Component/AssetMapper/Tests/ImportMap/RemotePackageDownloaderTest.php
+++ b/src/Symfony/Component/AssetMapper/Tests/ImportMap/RemotePackageDownloaderTest.php
@@ -24,7 +24,7 @@
 class RemotePackageDownloaderTest extends TestCase
 {
     private Filesystem $filesystem;
-    private static string $writableRoot = __DIR__ . '/../Fixtures/importmaps_for_writing';
+    private static string $writableRoot = __DIR__.'/../Fixtures/importmaps_for_writing';
 
     protected function setUp(): void
     {
diff --git a/src/Symfony/Component/AssetMapper/Tests/ImportMap/RemotePackageStorageTest.php b/src/Symfony/Component/AssetMapper/Tests/ImportMap/RemotePackageStorageTest.php
index d28b0f49ff1a1..5c791f83e3c08 100644
--- a/src/Symfony/Component/AssetMapper/Tests/ImportMap/RemotePackageStorageTest.php
+++ b/src/Symfony/Component/AssetMapper/Tests/ImportMap/RemotePackageStorageTest.php
@@ -20,7 +20,7 @@
 class RemotePackageStorageTest extends TestCase
 {
     private Filesystem $filesystem;
-    private static string $writableRoot = __DIR__ . '/../Fixtures/importmaps_for_writing';
+    private static string $writableRoot = __DIR__.'/../Fixtures/importmaps_for_writing';
 
     protected function setUp(): void
     {