Fixing tests on Windows + Windows test action (#3110)

* Updates for gulp 5

* .DS_Store ignored from copy operations

.github/workflows/test-windows.yaml

@@ -0,0 +1,36 @@
+
+name: Build status
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+    steps:
+      - name: Get npm cache directory
+        id: npm-cache
+        run: |
+          echo "dir=$(npm config get cache)" >> "$GITHUB_OUTPUT"
+      - uses: actions/cache@v3
+        with:
+          path: ${{ steps.npm-cache.outputs.dir }}
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+      - uses: actions/checkout@v4
+      - name: Run tests ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm ci
+      - run: npm test

test/file_existence.mjs

@@ -56,7 +56,8 @@ function checkFiles(directory, expectedFiles) {
       '**/.cache/**',
     ],
     dot: true, // include hidden files
-    mark: true, // add a `/` character to directory matches
+    mark: true, // add a `/` character to directory matches,
+    posix: true, //https://github.com/isaacs/node-glob/issues/467
   });
 
   // Check if all expected files are present in the