add workflow

.github/workflows/test.yml

@@ -0,0 +1,41 @@
+name: toolkit-unit-tests
+on: 
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'     
+
+jobs:
+
+  build:
+    name: Build
+
+    strategy:
+      matrix:
+        runs-on: [ubuntu-latest, macOS-latest, windows-latest]
+        node-version: [8.x, 10.x, 12.x]
+      fail-fast: false
+
+    runs-on: ${{ matrix.runs-on }}
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v1
+
+    - name: Set Node.js 12.x
+      uses: actions/setup-node@master
+      with:
+        node-version: {{ matrix.node-version }}
+
+    - name: npm install
+      run: npm install
+
+    - name: Compile
+      run: npm run build
+
+    - name: npm test
+      run: npm test