Merge pull request #15 from unhappychoice/feature/githubAction

👍 Add GitHub action file

.github/workflows/test.yml

@@ -0,0 +1,22 @@
+name: test
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: ['2.6.x', '2.5.x', '2.4.x',  '2.3.x']
+    steps:
+      - uses: actions/checkout@master
+      - name: Set up Ruby
+        uses: actions/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+      - name: Install bundler
+        run: gem install bundler
+      - name: Install dependencies
+        run: bundle install --jobs 4
+      - name: Run test
+        run: bundle exec rspec