Add CI for macOS and Ubuntu

.github/workflows/ci.yaml

@@ -0,0 +1,34 @@
+name: build
+on:
+  - push
+  - pull_request
+jobs:
+  build:
+    if: "!contains(github.event.head_commit.message, '[skip ci]')"
+    name: ${{ matrix.os }} Ruby ${{ matrix.ruby }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:   [ 'ubuntu', 'macos']
+        ruby: [ '2.6', '2.7', '3.0' ]
+    runs-on: ${{ matrix.os }}-latest
+    steps:
+      - name: Set up portaudio (ubuntu)
+        if: ${{ matrix.os == 'ubuntu' }}
+        run: |
+          sudo apt update -y
+          sudo apt install -y -V portaudio19-dev
+      - name: Set up portaudio (macos)
+        if: ${{ matrix.os == 'macos' }}
+        run: |
+          brew install portaudio
+      - uses: actions/checkout@v2
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+      - name: Bundle install
+        run: |
+          bundle config path vendor/bundle
+          bundle install --jobs 4 --retry 3
+      - name: Rake test
+        run: bundle exec rake test

Gemfile

@@ -2,4 +2,7 @@ source "http://rubygems.org"
 
 gemspec
 
-gem "rake", "~> 12.0", group: :development
+group :development do
+  gem "rake", "~> 12.0"
+  gem "test-unit"
+end

test/helper.rb

@@ -0,0 +1,4 @@
+require 'bundler/setup'
+Bundler.require(:development)
+require 'test/unit'
+require 'ffi-portaudio'

test/test_ffi-portaudio.rb

@@ -0,0 +1,11 @@
+require_relative 'helper'
+
+class TestFFIPortaudio < Test::Unit::TestCase
+  test :it_has_a_version_number do
+    assert_kind_of String, ::FFI::PortAudio::VERSION
+  end
+
+  test :it_get_portaudio_version_number do
+    assert_kind_of String, ::FFI::PortAudio::API.Pa_GetVersionText
+  end
+end