parallel_rspec_spec.rb

$LOAD_PATH.unshift File.expand_path('../../../lib', __FILE__)

require 'zeus/parallel_tests/version'
require 'open3'

describe 'zeus parallel_rspec spec' do
  def build_gem(_version = Zeus::ParallelTests::VERSION)
    system 'gem build zeus-parallel_tests.gemspec &>/dev/null'
  end

  def install_gem(version = Zeus::ParallelTests::VERSION)
    system "gem install ./zeus-parallel_tests-#{version}.gem --ignore-dependencies &>/dev/null"
  end

  def uninstall_gem(version = Zeus::ParallelTests::VERSION)
    system "echo y | gem uninstall zeus-parallel_tests -v #{version} --quiet &>/dev/null"
  end

  def launch_server
    pid = fork do
      Dir.chdir 'spec/dummy/'
      system 'bundle install'
      exec 'bundle exec zeus start &>/dev/null'
    end
    sleep 3
    pid
  end

  before(:all) do
    build_gem
    install_gem
    print 'Launch zeus server for dummy app in separate console and press ENTER '
    $stdin.getc
    # @server_pid = launch_server.to_i
    Dir.chdir 'spec/dummy/'
  end

  it 'connects to server' do
    expect(system('zeus r true &>/dev/null')).to be_true
  end

  it 'runs specs in two processes' do
    Open3.popen2e('zeus', 'parallel_rspec', '-n', '2', 'spec') do |_input, output, _t|
      expect(output.to_a.map(&:chomp)).to include('2 processes for 2 specs, ~ 1 specs per process')
    end
  end

  after(:all) do
    # system "kill -9 #{@server_pid.to_s}"
    # system "rm -fr .zeus.sock"
    uninstall_gem
  end
end