First try at Github Actions

.github/workflows/test.yml

@@ -0,0 +1,32 @@
+name: Tests
+
+on: [push]
+
+jobs:
+  test:
+    name: Test on Ruby ${{ matrix.ruby_version }}, node ${{ matrix.node_version }} and ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        node_version: [8, 10, 12]
+        ruby_version: [2.5.x, 2.6.x]
+        os: [ubuntu-latest]
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Ruby ${{ matrix.ruby_version }}
+      uses: actions/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby_version }}
+    - name: Use Node.js ${{ matrix.node_version }}
+      uses: actions/setup-node@v1
+      with:
+        version: ${{ matrix.node_version }}
+
+    - name: Build and test with Rake
+      run: |
+        gem install bundler
+        bundle install --jobs 4 --retry 3
+        npm i -g yarn
+        yarn
+        bundle exec rake test:all_with_coverage