ensure_resource_spec.rb
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	#! /usr/bin/env ruby -S rspec
	require 'spec_helper'
	require 'rspec-puppet'
	require 'puppet_spec/compiler'

	describe 'ensure_resource' do
	include PuppetSpec::Compiler

	before :all do
	Puppet::Parser::Functions.autoloader.loadall
	Puppet::Parser::Functions.function(:ensure_packages)
	end

	let :node do Puppet::Node.new('localhost') end
	let :compiler do Puppet::Parser::Compiler.new(node) end
	let :scope do Puppet::Parser::Scope.new(compiler) end

	describe 'when a type or title is not specified' do
	it { expect { scope.function_ensure_resource([]) }.to raise_error }
	it { expect { scope.function_ensure_resource(['type']) }.to raise_error }
	end

	describe 'when compared against a resource with no attributes' do
	let :catalog do
	compile_to_catalog(<<-EOS
	user { "dan": }
	ensure_resource('user', 'dan', {})
	EOS
	)
	end

	it 'should contain the the ensured resources' do
	expect(catalog.resource(:user, 'dan').to_s).to eq('User[dan]')
	end
	end

	describe 'works when compared against a resource with non-conflicting attributes' do
	[
	"ensure_resource('User', 'dan', {})",
	"ensure_resource('User', 'dan', '')",
	"ensure_resource('User', 'dan', {'ensure' => 'present'})",
	"ensure_resource('User', 'dan', {'ensure' => 'present', 'managehome' => false})"
	].each do \|ensure_resource\|
	pp = <<-EOS
	user { "dan": ensure => present, shell => "/bin/csh", managehome => false}
	#{ensure_resource}
	EOS

	it { expect { compile_to_catalog(pp) }.to_not raise_error }
	end
	end

	describe 'fails when compared against a resource with conflicting attributes' do
	pp = <<-EOS
	user { "dan": ensure => present, shell => "/bin/csh", managehome => false}
	ensure_resource('User', 'dan', {'ensure' => 'absent', 'managehome' => false})
	EOS

	it { expect { compile_to_catalog(pp) }.to raise_error }
	end

	describe 'when an array of new resources are passed in' do
	let :catalog do
	compile_to_catalog("ensure_resource('User', ['dan', 'alex'], {})")
	end

	it 'should contain the ensured resources' do
	expect(catalog.resource('User[dan]').to_s).to eq('User[dan]')
	expect(catalog.resource('User[alex]').to_s).to eq('User[alex]')
	end
	end

	describe 'when an array of existing resources is compared against existing resources' do
	pp = <<-EOS
	user { 'dan': ensure => present; 'alex': ensure => present }
	ensure_resource('User', ['dan', 'alex'], {})
	EOS

	let :catalog do
	compile_to_catalog(pp)
	end

	it 'should return the existing resources' do
	expect(catalog.resource('User[dan]').to_s).to eq('User[dan]')
	expect(catalog.resource('User[alex]').to_s).to eq('User[alex]')
	end
	end

	describe 'works when compared against existing resources with attributes' do
	[
	"ensure_resource('User', ['dan', 'alex'], {})",
	"ensure_resource('User', ['dan', 'alex'], '')",
	"ensure_resource('User', ['dan', 'alex'], {'ensure' => 'present'})",
	].each do \|ensure_resource\|
	pp = <<-EOS
	user { 'dan': ensure => present; 'alex': ensure => present }
	#{ensure_resource}
	EOS

	it { expect { compile_to_catalog(pp) }.to_not raise_error }
	end
	end

	describe 'fails when compared against existing resources with conflicting attributes' do
	pp = <<-EOS
	user { 'dan': ensure => present; 'alex': ensure => present }
	ensure_resource('User', ['dan', 'alex'], {'ensure' => 'absent'})
	EOS

	it { expect { compile_to_catalog(pp) }.to raise_error }
	end

	end

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