⬆️ Update dev dependencies + improve CI (#14)

Updates all dev dependencies to latest. Improves CI GitHub action to
test on different node versions and  platforms (OS).

Author: connorjs

.github/workflows/ci.yaml

@@ -7,18 +7,67 @@ on:
     branches: [main]
 
 jobs:
-  build:
+  Build:
     name: Build
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
           cache: npm
           node-version-file: .node-version
+
       - name: Install
         run: npm ci
+
       - name: CI build
         run: npm run ci-build
+
+  Test:
+    name: Test (${{ matrix.node }} | ${{ matrix.platform.os }})
+    needs: Build # Verify ci-build first
+    defaults:
+      run:
+        shell: bash
+    runs-on: ${{ matrix.platform.os }}
+    strategy:
+      matrix:
+        node:
+          - 20.x
+          - 22.x
+        platform:
+          - os: ubuntu-latest
+          - os: macos-latest
+          - os: windows-latest
+      fail-fast: false
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Use Node.js ${{ matrix.node }}
+        uses: actions/setup-node@v4
+        with:
+          cache: npm
+          node-version: ${{ matrix.node }}
+
+      - name: Install production
+        run: npm ci --include prod
+
+      - name: Build production
+        run: npm run build
+
+      - name: Run css-typed (the test)
+        # `node dist/main.js` is executing local `css-typed` as if installed (same as `bin`)
+        # Use `-I '//.*'` to ignore the first line (comment) which has generated path and timestamp
+        run: |
+          cp src/fixtures/kebab-case/kebab-case.css "$RUNNER_TEMP/kebab-case.css"
+
+          node dist/main.js "$RUNNER_TEMP/*.css"
+          diff --strip-trailing-cr -uI '//.*' src/fixtures/kebab-case/kebab-case-default.d.css.ts "$RUNNER_TEMP/kebab-case.d.css.ts"
+
+          node dist/main.js "$RUNNER_TEMP/*.css" --dashes
+          diff --strip-trailing-cr -uI '//.*' src/fixtures/kebab-case/kebab-case-dashes.d.css.ts "$RUNNER_TEMP/kebab-case.d.css.ts"