require 'spec_helper'

describe 'ceilometer' do

  let :params do
    {
      :http_timeout               => '600',
      :event_time_to_live         => '604800',
      :metering_time_to_live      => '604800',
      :telemetry_secret           => 'metering-s3cr3t',
      :package_ensure             => 'present',
      :debug                      => 'False',
      :log_dir                    => '/var/log/ceilometer',
      :use_stderr                 => 'True',
      :purge_config               => false,
    }
  end

  let :rabbit_params do
    {
      :rabbit_host        => '127.0.0.1',
      :rabbit_port        => 5672,
      :rabbit_userid      => 'guest',
      :rabbit_password    => '',
    }
  end

  shared_examples_for 'ceilometer' do

    it 'configures time to live for events and meters' do
      is_expected.to contain_ceilometer_config('database/event_time_to_live').with_value( params[:event_time_to_live] )
      is_expected.to contain_ceilometer_config('database/metering_time_to_live').with_value( params[:metering_time_to_live] )
    end

    it 'configures timeout for HTTP requests' do
      is_expected.to contain_ceilometer_config('DEFAULT/http_timeout').with_value(params[:http_timeout])
    end

    context 'with rabbit_host parameter' do
      before { params.merge!( rabbit_params ) }
      it_configures 'a ceilometer base installation'
      it_configures 'rabbit with SSL support'
      it_configures 'rabbit without HA support (with backward compatibility)'
      it_configures 'rabbit with connection heartbeats'

      context 'with rabbit_ha_queues' do
        before { params.merge!( rabbit_params ).merge!( :rabbit_ha_queues => true ) }
        it_configures 'rabbit with rabbit_ha_queues'
       end

    end

    context 'with rabbit_hosts parameter' do
      context 'with one server' do
        before { params.merge!( rabbit_params ).merge!( :rabbit_hosts => ['127.0.0.1:5672'] ) }
        it_configures 'a ceilometer base installation'
        it_configures 'rabbit with SSL support'
        it_configures 'rabbit without HA support (without backward compatibility)'
      end

      context 'with multiple servers' do
        before { params.merge!( rabbit_params ).merge!( :rabbit_hosts => ['rabbit1:5672', 'rabbit2:5672'] ) }
        it_configures 'a ceilometer base installation'
        it_configures 'rabbit with SSL support'
        it_configures 'rabbit with HA support'
      end

      context("with legacy rpc_backend value") do
        before { params.merge!( rabbit_params ).merge!(:rpc_backend => 'ceilometer.openstack.common.rpc.impl_kombu') }
        it { is_expected.to contain_ceilometer_config('DEFAULT/rpc_backend').with_value('rabbit') }
      end
    end

    context 'with amqp rpc_backend value' do
      it_configures 'amqp support'
    end

  end

  shared_examples_for 'a ceilometer base installation' do

    it { is_expected.to contain_class('ceilometer::logging') }
    it { is_expected.to contain_class('ceilometer::params') }

    it 'configures ceilometer group' do
      is_expected.to contain_group('ceilometer').with(
        :name    => 'ceilometer',
        :require => 'Package[ceilometer-common]'
      )
    end

    it 'configures ceilometer user' do
      is_expected.to contain_user('ceilometer').with(
        :name    => 'ceilometer',
        :gid     => 'ceilometer',
        :system  => true,
        :require => 'Package[ceilometer-common]'
      )
    end

    it 'installs ceilometer common package' do
      is_expected.to contain_package('ceilometer-common').with(
        :ensure => 'present',
        :name   => platform_params[:common_package_name],
        :tag    => ['openstack', 'ceilometer-package'],
      )
    end

    it 'passes purge to resource' do
      is_expected.to contain_resources('ceilometer_config').with({
        :purge => false
      })
    end

    it 'configures required telemetry_secret' do
      is_expected.to contain_ceilometer_config('publisher/telemetry_secret').with_value('metering-s3cr3t')
      is_expected.to contain_ceilometer_config('publisher/telemetry_secret').with_value( params[:telemetry_secret] ).with_secret(true)
    end

    context 'without the required telemetry_secret' do
      before { params.delete(:telemetry_secret) }
      it { expect { is_expected.to raise_error(Puppet::Error) } }
    end

    it 'configures default transport_url' do
      is_expected.to contain_ceilometer_config('DEFAULT/transport_url').with_value('<SERVICE DEFAULT>')
    end

    it 'configures notifications' do
      is_expected.to contain_ceilometer_config('oslo_messaging_notifications/topics').with_value('notifications')
      is_expected.to contain_ceilometer_config('oslo_messaging_notifications/transport_url').with_value('<SERVICE DEFAULT>')
    end

    context 'with rabbitmq durable queues configured' do
      before { params.merge!( :amqp_durable_queues => true ) }
      it_configures 'rabbit with durable queues'
    end

    context 'with overriden transport_url parameter' do
      before { params.merge!( :default_transport_url => 'rabbit://rabbit_user:password@localhost:5673' ) }

      it 'configures transport_url' do
        is_expected.to contain_ceilometer_config('DEFAULT/transport_url').with_value('rabbit://rabbit_user:password@localhost:5673')
      end
    end

    context 'with overriden notification parameters' do
      before {
        params.merge!(
          :notification_topics        => ['notifications', 'custom'],
          :notification_transport_url => 'rabbit://rabbit_user:password@localhost:5673',
        )
      }

      it 'configures notifications' do
        is_expected.to contain_ceilometer_config('oslo_messaging_notifications/topics').with_value('notifications,custom')
        is_expected.to contain_ceilometer_config('oslo_messaging_notifications/transport_url').with_value('rabbit://rabbit_user:password@localhost:5673')
      end
    end
  end

  shared_examples_for 'rabbit without HA support (with backward compatibility)' do

    it 'configures rabbit' do
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_userid').with_value( params[:rabbit_userid] )
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_password').with_value( params[:rabbit_password] )
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_password').with_value( params[:rabbit_password] ).with_secret(true)
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_virtual_host').with_value('<SERVICE DEFAULT>')
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/heartbeat_timeout_threshold').with_value('<SERVICE DEFAULT>')
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/heartbeat_rate').with_value('<SERVICE DEFAULT>')
    end

    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_host').with_value( params[:rabbit_host] ) }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_port').with_value( params[:rabbit_port] ) }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_hosts').with_value('<SERVICE DEFAULT>') }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_ha_queues').with_value('<SERVICE DEFAULT>') }

  end

  shared_examples_for 'rabbit without HA support (without backward compatibility)' do

    it 'configures rabbit' do
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_userid').with_value( params[:rabbit_userid] )
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_password').with_value( params[:rabbit_password] )
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_password').with_value( params[:rabbit_password] ).with_secret(true)
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_virtual_host').with_value('<SERVICE DEFAULT>')
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/heartbeat_timeout_threshold').with_value('<SERVICE DEFAULT>')
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/heartbeat_rate').with_value('<SERVICE DEFAULT>')
    end

    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_host').with_value('<SERVICE DEFAULT>') }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_port').with_value('<SERVICE DEFAULT>') }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_hosts').with_value( params[:rabbit_hosts].join(',') ) }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_ha_queues').with_value('<SERVICE DEFAULT>') }

  end

  shared_examples_for 'rabbit with rabbit_ha_queues' do

    it 'configures rabbit' do
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_ha_queues').with_value( params[:rabbit_ha_queues] )
    end
  end

  shared_examples_for 'rabbit with HA support' do

    it 'configures rabbit' do
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_userid').with_value( params[:rabbit_userid] )
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_password').with_value( params[:rabbit_password] )
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_password').with_value( params[:rabbit_password] ).with_secret(true)
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_virtual_host').with_value('<SERVICE DEFAULT>')
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/heartbeat_timeout_threshold').with_value('<SERVICE DEFAULT>')
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/heartbeat_rate').with_value('<SERVICE DEFAULT>')
    end

    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_host').with_value('<SERVICE DEFAULT>') }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_port').with_value('<SERVICE DEFAULT>') }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_hosts').with_value( params[:rabbit_hosts].join(',') ) }
    it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_ha_queues').with_value(true) }

  end
  shared_examples_for 'rabbit with durable queues' do
    it 'in ceilometer' do
      is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/amqp_durable_queues').with_value(true)
    end
  end

  shared_examples_for 'rabbit with connection heartbeats' do
    context "with heartbeat configuration" do
      before { params.merge!(
        :rabbit_heartbeat_timeout_threshold => '60',
        :rabbit_heartbeat_rate              => '10'
      ) }

      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/heartbeat_timeout_threshold').with_value('60') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/heartbeat_rate').with_value('10') }
    end
  end


  # Cleanup in Ocata
  shared_examples_for 'using old metering_secret param' do
    context "with old metering_secret param it uses telemetry_secret instead" do
      before { params.merge!(
          :metering_secret => 'broncos',
          :telemetry_secret => 'metering-s3cr3t',
      ) }
      it { is_expected.to contain_ceilometer_config('publisher/telemetry_secret').with_value('metering-s3cr3t') }
    end
    context "with old metering_secret param set and telemetry_secret unset" do
      before { params.merge!(
          :metering_secret => 'broncos',
          :telemetry_secret => nil,
      ) }
      it { is_expected.to contain_ceilometer_config('publisher/telemetry_secret').with_value('broncos') }
    end
  end

  shared_examples_for 'rabbit with SSL support' do
    context "with default parameters" do
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_use_ssl').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_ca_certs').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_certfile').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_keyfile').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_version').with_value('<SERVICE DEFAULT>') }
    end

    context "with SSL enabled with kombu" do
      before { params.merge!(
        :rabbit_use_ssl     => true,
        :kombu_ssl_ca_certs => '/path/to/ca.crt',
        :kombu_ssl_certfile => '/path/to/cert.crt',
        :kombu_ssl_keyfile  => '/path/to/cert.key',
        :kombu_ssl_version  => 'TLSv1'
      ) }

      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_use_ssl').with_value(true) }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_ca_certs').with_value('/path/to/ca.crt') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_certfile').with_value('/path/to/cert.crt') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_keyfile').with_value('/path/to/cert.key') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_version').with_value('TLSv1') }
    end

    context "with SSL enabled without kombu" do
      before { params.merge!(
        :rabbit_use_ssl  => true
      ) }

      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/rabbit_use_ssl').with_value(true) }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_ca_certs').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_certfile').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_keyfile').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_rabbit/kombu_ssl_version').with_value('<SERVICE DEFAULT>') }
    end

    context "with SSL wrongly configured" do
      context 'with kombu_ssl_ca_certs parameter' do
        before { params.merge!(:kombu_ssl_ca_certs => '/path/to/ca.crt') }
        it_raises 'a Puppet::Error', /The kombu_ssl_ca_certs parameter requires rabbit_use_ssl to be set to true/
      end

      context 'with kombu_ssl_certfile parameter' do
        before { params.merge!(:kombu_ssl_certfile => '/path/to/ssl/cert/file') }
        it_raises 'a Puppet::Error', /The kombu_ssl_certfile parameter requires rabbit_use_ssl to be set to true/
      end

      context 'with kombu_ssl_keyfile parameter' do
        before { params.merge!(:kombu_ssl_keyfile => '/path/to/ssl/keyfile') }
        it_raises 'a Puppet::Error', /The kombu_ssl_keyfile parameter requires rabbit_use_ssl to be set to true/
      end
    end
  end

  shared_examples_for 'memcached support' do
    context "with memcached enabled" do
      before { params.merge!(
        :memcached_servers => ['1.2.3.4','1.2.3.5']
      ) }

      it { is_expected.to contain_ceilometer_config('DEFAULT/memcached_servers').with_value('1.2.3.4,1.2.3.5') }
    end
  end

  shared_examples_for 'amqp support' do
    context 'with default parameters' do
      before { params.merge!( :rpc_backend => 'amqp' ) }

      it { is_expected.to contain_ceilometer_config('DEFAULT/rpc_backend').with_value('amqp') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/server_request_prefix').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/broadcast_prefix').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/group_request_prefix').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/container_name').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/idle_timeout').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/trace').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/ssl_ca_file').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/ssl_cert_file').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/ssl_key_file').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/ssl_key_password').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/allow_insecure_clients').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/sasl_mechanisms').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/sasl_config_dir').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/sasl_config_name').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/username').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/password').with_value('<SERVICE DEFAULT>') }
    end

    context 'with overriden amqp parameters' do
      before { params.merge!(
        :rpc_backend        => 'amqp',
        :amqp_idle_timeout  => '60',
        :amqp_trace         => true,
        :amqp_ssl_ca_file   => '/path/to/ca.cert',
        :amqp_ssl_cert_file => '/path/to/certfile',
        :amqp_ssl_key_file  => '/path/to/key',
        :amqp_username      => 'amqp_user',
        :amqp_password      => 'password',
      ) }

      it { is_expected.to contain_ceilometer_config('DEFAULT/rpc_backend').with_value('amqp') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/server_request_prefix').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/broadcast_prefix').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/group_request_prefix').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/container_name').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/idle_timeout').with_value('60') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/trace').with_value('true') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/ssl_ca_file').with_value('/path/to/ca.cert') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/ssl_cert_file').with_value('/path/to/certfile') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/ssl_key_file').with_value('/path/to/key') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/allow_insecure_clients').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/sasl_mechanisms').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/sasl_config_dir').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/sasl_config_name').with_value('<SERVICE DEFAULT>') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/username').with_value('amqp_user') }
      it { is_expected.to contain_ceilometer_config('oslo_messaging_amqp/password').with_value('password') }
    end
  end

  context 'on Debian platforms' do
    let :facts do
      @default_facts.merge({ :osfamily => 'Debian' })
    end

    let :platform_params do
      { :common_package_name => 'ceilometer-common' }
    end

    it_configures 'ceilometer'
  end

  context 'on RedHat platforms' do
    let :facts do
      @default_facts.merge({ :osfamily => 'RedHat' })
    end

    let :platform_params do
      { :common_package_name => 'openstack-ceilometer-common' }
    end

    it_configures 'ceilometer'
  end
end