added test, inspired by the amplience repo

.github/workflows/test.yml

@@ -0,0 +1,31 @@
+name: Run Tests
+
+on: [push]
+
+jobs:
+
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      max-parallel: 4
+      matrix:
+        go-version: ["1.18"]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Go ${{ matrix.go-version }}
+        uses: WillAbides/setup-go-faster@v1.7.0
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: Install dependencies
+        run: go get ./serverless
+      - name: Run staticcheck
+        uses: dominikh/staticcheck-action@v1.0.0
+        with:
+          version: "2021.1.2"
+          install-go: false
+          cache-key: ${{ matrix.go-version }}
+      - name: Run tests
+        run: go test -race -coverprofile=coverage.txt -covermode=atomic -v ./...
+