how to pass selector value to hiera in rspec-puppet

rspec-puppet

asked 2016-12-16 06:53:35 -0500

Chutki
162 ●87 ●97 ●121

Hi,

I have following code in puppet,

class module_name {

   $val = hiera('ONOFF')

      case $val {
        'off'  : {
          service { 'servicename' :
            ensure => stopped,
            enable => false,
          }
        }
        'on'  : {
          service { 'servicename' :
            ensure => running,
            enable => true,
          }
        }
        default: {}
      }
  }

Below is the test case

describe 'module_name' do

  context 'with defaults valuess' do
    let(:facts) {{ :operatingsystemmajrelease => '7', :osfamily => 'RedHat'}}

    it { should contain_class('module_name') }
  end

  context 'test case for  off' do
    let(:facts) {{ :operatingsystemmajrelease => '7', :osfamily => 'RedHat' }}
     let(:hiera_config) { 'spec/fixtures/hiera.yaml' }
     hiera = Hiera.new({ :config => 'spec/fixtures/hiera.yaml' })

     it { should contain_service('servicename').with(
      'ensure' => 'stopped',
      'enable' => 'false'
     )}
   end

   context 'test case for  on' do
    let(:facts) {{ :operatingsystemmajrelease => '7', :osfamily => 'RedHat' }}
     let(:hiera_config) { 'spec/fixtures/hiera.yaml' }
     hiera = Hiera.new({ :config => 'spec/fixtures/hiera.yaml' })

     it { should contain_service('servicename').with(
      'ensure' => 'running',
      'enable' => 'true'
     )}
   end
end
===============================================
default.yaml

---
ONOFF: 'on'

Getting below error

expected that the catalogue would contain Service[servicename] with ensure set to "stopped" but it is set to "running", and parameter enable set to "false" but it is set to true

How I can write test case to pass both selector "on" and "off".

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2 Answers

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answered 2017-04-17 13:47:39 -0500

DevOpsProDude
36 ●3

First off, replace hiera() with new lookup() function as hiera() function has been deprecated.

I highly recommend reading how to set up hiera in modules https://docs.puppet.com/puppet/4.9/hieramigratemodules.html

Your class should look more like

class foo (
  $enable_bar,
) {

  if $enable_bar {
    $_state = running
    $_run_at_boot = true
  } else {
    $_state = stopped
    $_run_at_boot = false
  }

  service { 'bar':
    ensure => $_state,
    enable => $_run_at_boot,
  }

}

/data/common.yaml

---
foo::enable_bar: true

In your test, you should no longer need the hiera stuff, but you will need to stub out the enable_bar param for the 'disabled' test

  context 'test case for bar in disabled state' do
    let(:facts) { :operatingsystemmajrelease => '7', :osfamily => 'RedHat' }
    let(:param) { enable_bar: false }

    it { 
      is_expected.to contain_service('bar').with(
        ensure: 'stopped',
        enable: 'false',
      )
    }
  end

Hope that all makes sense

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-1

answered 2016-12-16 08:20:54 -0500

DarylW
1788 ●10 ●20 ●38

updated 2016-12-16 08:21:03 -0500

This doesn't directly answer your question (how to run rspec tests with two different sets of hiera data), but I think it would be valuable to refactor your module to make it more testable.

I would suggest to change your approach. Sadly, this gitbook is not complete, but it does have a lot of good points on how to design the API of your puppet classes to allow them to be testable

https://jmangt.gitbooks.io/test-drive...

In their case, they recommend that if you are using hiera, it should terminate in the params.pp class (which gets it's variables assigned to class parameters in your init.pp main class), which you could easily override while testing.

That said, I don't know what the testing pattern going forward is with lookup() and data in modules.