RSpecの開始と終了をSlackに通知する

rspec-slack.rb

require 'slack-ruby-client'

Slack.configure do |config|
  config.token = ENV.fetch('SLACK_API_TOKEN', '')
end

RSpec.configure do |config|
  config.before(:suite) do
    chat_post ':stopwatch: Running...'
  end
  config.after(:suite) do
    chat_post ':checkered_flag: Goal!'
  end

  def chat_post(text)
    channel = ENV.fetch('SLACK_CHANNEL', '')
    username = ENV.fetch('SLACK_USERNAME', '')
    text = "#{text} <@#{username}>" if !username.blank?

    unless Slack::Config.token.blank? || channel.blank?
      client = Slack::Web::Client.new
      client.chat_postMessage(channel: channel, text: text, as_user: true)
    end
  end
end

実行時の様子