require 'spec_helper'

describe Slackistrano do
  before(:each) do
    Rake::Task['load:defaults'].invoke
  end

  it "invokes slack:deploy:starting after deploy:starting" do
    set :slack_run_starting, ->{ true }
    expect(Slackistrano).to receive :post
    Rake::Task['deploy:starting'].execute
  end

  it "invokes slack:deploy:finished after deploy:finished" do
    set :slack_run_finished, ->{ true }
    expect(Slackistrano).to receive :post
    Rake::Task['deploy:finished'].execute
  end

  it "invokes slack:deploy:failed after deploy:failed" do
    set :slack_run_failed, ->{ true }
    expect(Slackistrano).to receive :post
    Rake::Task['deploy:failed'].execute
  end

  shared_examples_for "slack notification" do |stage, color = nil|
    it "posts to slack on slack:deploy:#{stage}" do
      set "slack_run_#{stage}".to_sym, ->{ true }
      expect(Slackistrano).to receive :post
      Rake::Task["slack:deploy:#{stage}"].execute
    end

    it "does not post to slack on slack:deploy:#{stage} when disabled" do
      set "slack_run_#{stage}".to_sym, ->{ false }
      expect(Slackistrano).not_to receive :post
      Rake::Task["slack:deploy:#{stage}"].execute
    end

    it "calls Slackistrano.post with all the right arguments on slack:deploy:#{stage}" do
      set :"slack_run_#{stage}", ->{ true }
      set :slack_team,         ->{ 'team' }
      set :slack_token,        ->{ 'token' }
      set :slack_webhook,      ->{ 'webhook' }
      set :slack_channel,      ->{ 'channel' }
      set :slack_icon_url,     ->{ 'http://icon.url' }
      set :slack_icon_emoji,   ->{ ':emoji:' }
      set :"slack_msg_#{stage}", ->{ 'text message' }

      attachment = {text: 'text message'}
      attachment[:color] = color unless color.nil?

      expect(Slackistrano).to receive(:post).with(
        team: 'team',
        token: 'token',
        webhook: 'webhook',
        via_slackbot: false,
        payload: {
          channel: 'channel',
          username: 'Slackistrano',
          icon_url: 'http://icon.url',
          icon_emoji: ':emoji:',
          attachments: [attachment]
        }
      )
      Rake::Task["slack:deploy:#{stage}"].execute
    end
  end

  describe 'build is starting' do
    it_should_behave_like "slack notification", :starting
  end

  describe 'build has finished' do
    it_should_behave_like "slack notification", :finished, 'good'
  end

  describe 'build has failed' do
    it_should_behave_like "slack notification", :failed, 'danger'
  end
end