Merge pull request #3 from google:s/add-github-actions

PiperOrigin-RevId: 433887860

.github/workflows/go.yml

@@ -0,0 +1,28 @@
+name: test
+on: [push, pull_request]
+jobs:
+
+  build:
+    name: Build and Test
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.17
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.17
+      id: go
+
+    - name: Check out code
+      uses: actions/checkout@v1
+
+    - name: Get dependencies
+      run: |
+            go mod download
+    - name: Build
+      run: |
+            go build ./...
+
+    - name: Test
+      run: |
+            go test ./...