diff --git a/.github/workflows/test-os.yaml b/.github/workflows/test-os.yaml
new file mode 100644
index 00000000..644231cd
--- /dev/null
+++ b/.github/workflows/test-os.yaml
@@ -0,0 +1,56 @@
+name: Test OS
+
+on:
+    push:
+        branches:
+            - main
+    pull_request:
+
+jobs:
+    test-windows:
+        name: Windows
+        runs-on: windows-latest
+
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+
+            - name: Install PHP with extensions
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: 8.2
+                  tools: composer:v2
+                  ini-file: development
+
+            - name: Install Composer dependencies
+              uses: ramsey/composer-install@v2
+              with:
+                  dependency-versions: highest
+                  composer-options: --prefer-dist --prefer-stable
+
+            - name: Run tests with PHPUnit
+              run: vendor/bin/phpunit
+
+    test-macos:
+        name: Mac OS
+        runs-on: macos-latest
+
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+
+            - name: Install PHP with extensions
+              uses: shivammathur/setup-php@v2
+              with:
+                  php-version: 8.2
+                  tools: composer:v2
+                  ini-file: development
+
+            - name: Install Composer dependencies
+              uses: ramsey/composer-install@v2
+              with:
+                  dependency-versions: highest
+                  composer-options: --prefer-dist --prefer-stable
+
+            - name: Run tests with PHPUnit
+              run: vendor/bin/phpunit
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 3e1f9d9f..b9beb9b6 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -8,7 +8,7 @@ on:
 
 jobs:
     test:
-        name: PHP ${{ matrix.php-version }} + ${{ matrix.dependencies }}
+        name: PHP ${{ matrix.runner }} + ${{ matrix.php-version }} + ${{ matrix.dependencies }}
         runs-on: ubuntu-latest
 
         env:
@@ -22,11 +22,12 @@ jobs:
                     - 8.2
                     - 8.3
                 dependencies: [highest]
+                runner: [ubuntu-latest]
                 symfony-require: ['']
                 include:
                     - php-version: 8.0
                       dependencies: lowest
-                    - php-version: '8.2'
+                    - php-version: 8.2
                       dependencies: highest
                       symfony-require: 7.0.*
 
diff --git a/tests/File/FileHelperTest.php b/tests/File/FileHelperTest.php
index 9e2f6172..f31671af 100644
--- a/tests/File/FileHelperTest.php
+++ b/tests/File/FileHelperTest.php
@@ -41,6 +41,9 @@ public function testGetFileName(
         ?string $expected,
     ): void {
         static::assertSame($expected, FileHelper::getFileName($path, $baseDir, $ignoredDir));
+
+        $windowsPath = str_replace('/', '\\', $path);
+        static::assertSame($expected, FileHelper::getFileName($windowsPath, $baseDir, $ignoredDir));
     }
 
     /**
@@ -99,12 +102,15 @@ public static function getFileNameDataProvider(): iterable
      * @dataProvider getDirectoriesDataProvider
      */
     public function testGetDirectories(
-        string $absolutePath,
+        string $path,
         ?string $baseDir,
         array $ignoredDir,
         array $expected,
     ): void {
-        static::assertSame($expected, FileHelper::getDirectories($absolutePath, $baseDir, $ignoredDir, __DIR__));
+        static::assertSame($expected, FileHelper::getDirectories($path, $baseDir, $ignoredDir, __DIR__));
+
+        $windowsPath = str_replace('/', '\\', $path);
+        static::assertSame($expected, FileHelper::getDirectories($windowsPath, $baseDir, $ignoredDir, __DIR__));
     }
 
     /**