add github actions

.github/scripts/before_install.sh

@@ -0,0 +1,9 @@
+gem install bundler -v "~> 1.0"
+if [ ! -d "telnyx-mock/telnyx-mock_${TELNYX_MOCK_VERSION}" ]; then
+  mkdir -p telnyx-mock/${TELNYX_MOCK_VERSION}/
+  curl -L "https://github.com/team-telnyx/telnyx-mock/releases/download/v${TELNYX_MOCK_VERSION}/telnyx-mock_${TELNYX_MOCK_VERSION}_linux_amd64.tar.gz" -o "telnyx-mock/telnyx-mock_${TELNYX_MOCK_VERSION}_linux_amd64.tar.gz"
+  tar -zxf "telnyx-mock/telnyx-mock_${TELNYX_MOCK_VERSION}_linux_amd64.tar.gz" -C "telnyx-mock/${TELNYX_MOCK_VERSION}/"
+fi
+telnyx-mock/${TELNYX_MOCK_VERSION}/telnyx-mock > /dev/null &
+TELNYX_MOCK_PID=$!
+export PATH="${PATH}:${PWD}/telnyx-mock/${TELNYX_MOCK_VERSION}"

.github/workflows/ruby.yml

@@ -0,0 +1,39 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will download a prebuilt Ruby version, install dependencies and run tests with Rake
+# For more information see: https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby
+
+name: Ruby
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    env:
+      TELNYX_MOCK_VERSION: 0.8.10
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: [ '2.5', '2.6', '2.7' ]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Ruby
+    # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
+    # change this to (see https://github.com/ruby/setup-ruby#versioning):
+    # uses: ruby/setup-ruby@v1
+      uses: ruby/setup-ruby@21351ecc0a7c196081abca5dc55b08f085efe09a
+      with:
+        ruby-version: 2.6
+    - name: Run Setup Script to install mock
+      run: source ./.github/scripts/before_install.sh
+      shell: bash
+    - name: Install dependencies
+      run: bundle install
+    - name: Run tests
+      run: bundle exec rake