test: Add GitHub Actions workflow for testing on macOS and Linux

Author: softwaredevelop

.github/workflows/t.yml

@@ -0,0 +1,23 @@
+on:
+  push:
+    branch: main
+    tags:
+      - 'v\d+'
+jobs:
+  test:
+    strategy:
+      matrix:
+        os: [macos-latest, linux-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - run: echo "Checking commit '${{ github.event.head_commit.message }}'"
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node_version: 18.x
+      - uses: actions/cache@v4
+        with:
+          path: ~/.npm
+          key: ${{ matrix.platform }}-node-${{ hashFiles('**/package-lock.json') }}
+        if: ${{ github.repository.permissions.admin == true }}
+      - run: npm install && npm test