Create test.yml

Author: danny-gallagher

.github/workflows/test.yml

@@ -0,0 +1,30 @@
+name: Build & Test
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+
+    runs-on: ubuntu-latest
+    
+    strategy:
+      matrix:
+        rvm: [2.4.4, truffleruby, 2.4, 2.5, 2.6, 2.7]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.rvm }}
+    - name: Install dependencies
+      run: bundle install --jobs=3 --retry=3
+    - name: Run tests
+      run: |
+        gem build *.gemspec
+        gem install *.gem
+        rake test