added ci -github

.github/workflows/test.yml

@@ -0,0 +1,36 @@
+name: daru-view test
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu]
+        ruby: [2.3.0, 2.4.0, 2.5.3, 2.6.0]
+    runs-on: ${{ matrix.os }}-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: ${{ matrix.ruby }}
+        bundler-cache: true
+    - name: Install dependencies
+      run: | 
+        gem install bundler
+        gem install rainbow -v '2.2.1'
+        bundle install
+    - name: Run tests
+      run: |
+        bundle exec rspec
+        bundle exec rubocop
+    - name: Push coverage report
+      run:  bundle exec rake coveralls:push