fluke/devops-service/spec/workers/chef_node_name_builder_spec.rb

require 'workers/stack_bootstrap/chef_node_name_builder'
RSpec.describe ChefNodeNameBuilder do
  # real response
  let(:server_info) do
    {
      "name"=>"stack-achuchkalov-aws-test-1455976199-master01",
      "id"=>"i-fac32c7e",
      "key_name"=>"achuchkalov",
      "private_ip"=>"172.31.11.30",
      "public_ip"=>"52.90.250.51",
      "tags" => {
        "Name"=>"master01",
        "aws:cloudformation:logical-id"=>"EC2Instance1",
        "aws:cloudformation:stack-name"=>"stack-achuchkalov-aws-test-1455976199",
        "StackTemplate"=>"1inst",
        "aws:cloudformation:stack-id" => "arn:aws:cloudformation:us-east-1:736558555923:stack/stack-achuchkalov-aws-test-1455976199/d5f3ca60-d7d8-11e5-9ba1-50d5cd24fac6",
        "cid:deployEnv"=>"test",
        "cid:project"=>"aws",
        "cid:user"=>"root",
        "cid:priority"=>0
      }
    }
  end
  let(:project) { build(:project, id: 'proj', with_deploy_env_identifiers: %w(dev)) }
  let(:env) { project.deploy_env('dev') }
  let(:build_node_name) {
    described_class.new(server_info, project, env).build_node_name
  }

  def set_mask(mask)
    server_info['tags']['cid:node-name-mask'] = mask
  end

  describe '#build_node_name' do
    it 'uses default mask ("$project-$cfname-$env")' do
      expect(build_node_name).to eq 'proj-master01-dev'
    end

    it 'substitutes $project, $env, $instanceid and $cfname' do
      set_mask('$project/$env/$instanceid/$cfname')
      expect(build_node_name).to eq 'proj/dev/i-fac32c7e/master01'
    end

    it 'substitutes $time' do
      set_mask('$project-$time')
      expect(build_node_name).to match /proj-\d+/
    end

    it 'substitutes :project, :env, :instanceid and :cfname' do
      set_mask(':project/:env/:instanceid/:cfname')
      expect(build_node_name).to eq 'proj/dev/i-fac32c7e/master01'
    end

    it 'substitutes :time' do
      set_mask(':project-:time')
      expect(build_node_name).to match /proj-\d+/
    end

    it 'works with both colon and dollar variables' do
      set_mask('$project/$env/:instanceid/:cfname')
      expect(build_node_name).to eq 'proj/dev/i-fac32c7e/master01'
    end

    it 'substitutes underscores to dashes' do
      server_info['tags']['Name'] = 'server_1'
      expect(build_node_name).to match 'proj-server-1-dev'
    end
  end
end