Run test suite on windows

.github/workflows/test-suite-windows.yml

@@ -0,0 +1,88 @@
+# Windows doesn't support Docker out-of-box so we can run mostly unit test
+name: Test Suite on Windows
+
+on:
+  pull_request:
+    paths:
+      - '.github/workflows/**'
+      - 'src/adapter/**'
+      - 'src/core/**'
+      - 'src/lib/**'
+      - 'tools/**'
+      - 'examples/**'
+      - 'composer.lock'
+  push:
+    branches: [ 1.x ]
+    paths-ignore:
+      - 'CHANGELOG.md'
+
+# See https://stackoverflow.com/a/72408109
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  tests:
+    name: "Tests"
+
+    runs-on: "windows-latest"
+
+    strategy:
+      fail-fast: false
+      matrix:
+        dependencies:
+          - "locked"
+          - "lowest"
+          - "highest"
+        php-version:
+          - "8.1"
+          - "8.2"
+          - "8.3"
+          - "8.4"
+
+    steps:
+      - name: "Checkout"
+        uses: "actions/checkout@v4"
+
+      - name: "Install PHP"
+        uses: "shivammathur/setup-php@v2"
+        with:
+          tools: composer:v2
+          php-version: "${{ matrix.php-version }}"
+          ini-values: memory_limit=-1
+          extensions: :psr, bcmath, dom, hash, json, mbstring, xml, xmlwriter, xmlreader, zlib, sodium
+
+      - name: "List PHP Extensions"
+        run: php -m
+
+      - name: "List PHP configuration"
+        run: php -i
+
+      - name: "Get Composer Cache Directory"
+        id: composer-cache
+        run: |
+          echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+      - name: "Cache Composer dependencies"
+        uses: "actions/cache@v4"
+        with:
+          path: "~\\AppData\\Roaming\\composer"
+          key: "${{ runner.os }}-php-${{ matrix.php-version }}-${{ matrix.dependencies }}-composer-${{ hashFiles('**\\composer.lock') }}"
+          restore-keys: |
+            ${{ runner.os }}-php-${{ matrix.php-version }}-${{ matrix.dependencies }}-composer-
+
+      - name: "Install lowest dependencies"
+        if: ${{ matrix.dependencies == 'lowest' }}
+        run: "composer update --prefer-lowest --no-interaction --no-progress --no-suggest"
+
+      - name: "Install highest dependencies"
+        if: ${{ matrix.dependencies == 'highest' }}
+        run: "composer update --no-interaction --no-progress --no-suggest"
+
+      - name: "Install locked dependencies"
+        if: ${{ matrix.dependencies == 'locked' }}
+        run: "composer install --no-interaction --no-progress --no-suggest"
+
+      # Please see note at top why only running unit tests
+      - name: "Test"
+        run: "composer test -- --testsuite unit"

src/lib/filesystem/src/Flow/Filesystem/Path.php

@@ -35,7 +35,7 @@ public function __construct(string $uri, array|Options $options = [])
 
         $path = \str_replace($scheme . '://', '', $uri);
 
-        if (!\str_starts_with($path, DIRECTORY_SEPARATOR)) {
+        if (PHP_OS_FAMILY !== 'Windows' && !\str_starts_with($path, DIRECTORY_SEPARATOR)) {
             $path = DIRECTORY_SEPARATOR . $path;
         }
 

src/lib/filesystem/tests/Flow/Filesystem/Tests/Unit/PathTest.php → src/lib/filesystem/tests/Flow/Filesystem/Tests/Unit/PathOnUnixTest.php

@@ -7,9 +7,11 @@
 use function Flow\Filesystem\DSL\{partition, partitions, path, path_real};
 use Flow\Filesystem\Partitions;
 use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\RequiresOperatingSystemFamily;
 use PHPUnit\Framework\TestCase;
 
-final class PathTest extends TestCase
+#[RequiresOperatingSystemFamily('Linux')]
+final class PathOnUnixTest extends TestCase
 {
     public static function directories() : \Generator
     {