Add testing action

Run tests on GH Actions

.github/workflows/test.yml

@@ -0,0 +1,31 @@
+name: Go
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+
+  test:
+    name: Build
+    strategy:
+      matrix:
+        go-versions: [1.12.x, 1.13.x, 1.14.x]
+        platform: [ubuntu-latest]
+    runs-on: ${{ matrix.platform }}
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v1
+      with:
+        go-version: ${{ matrix.go-version }}
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test
+      run: go test -v ./...