spec/classes/datadog_agent_integrations_disk_spec.rb

require 'spec_helper'

describe 'datadog_agent::integrations::disk' do
  context 'supported agents - v5 and v6' do
    agents = { '5' => true, '6' => false }
    agents.each do |_, enabled|
      let(:pre_condition) { "class {'::datadog_agent': agent5_enable => #{enabled}}" }
      let(:facts) {{
        operatingsystem: 'Ubuntu',
      }}
      if enabled
        let(:conf_dir) { '/etc/dd-agent/conf.d' }
      else
        let(:conf_dir) { '/etc/datadog-agent/conf.d' }
      end
      let(:dd_user) { 'dd-agent' }
      let(:dd_group) { 'root' }
      let(:dd_package) { 'datadog-agent' }
      let(:dd_service) { 'datadog-agent' }
      let(:conf_file) { "#{conf_dir}/disk.yaml" }

      it { is_expected.to compile.with_all_deps }
      it { is_expected.to  contain_file(conf_file).with_content(
        %r{\s+use_mount:\s+no$}
      ).with(
        owner: dd_user,
        group: dd_group,
        mode: '0600',
      )}
      it { is_expected.to contain_file(conf_file).that_requires("Package[#{dd_package}]") }
      it { is_expected.to contain_file(conf_file).that_notifies("Service[#{dd_service}]") }

      context 'compile errors for incorrect values' do
        let(:params) {{ use_mount: 'heaps' }}
        it do
          expect { is_expected.to compile }.to raise_error(/error\s+during\s+compilation/)
        end
      end

      context 'we handle strings and arrays the same' do
        let(:params) {{
          use_mount: 'yes',
          excluded_filesystems: [ 'tmpfs', 'dev' ],
          excluded_disks: '/dev/sda1',
          excluded_disk_re: '/dev/sdb.*',
          excluded_mountpoint_re: '/mnt/other.*',
          all_partitions: 'yes',
          tag_by_filesystem: 'no'
        }}
        let(:yaml_conf) {
           <<-HEREDOC
init_config:

instances:
  - use_mount: yes
    excluded_filesystems:
      - tmpfs
      - dev
    excluded_disks:
      - /dev/sda1
    excluded_disk_re: /dev/sdb.*
    excluded_mountpoint_re: /mnt/other.*
    all_partitions: yes
    tag_by_filesystem: no
        HEREDOC
         }
        it { is_expected.to contain_file(conf_file).with_content(yaml_conf) }
      end
    end
  end
end