spec/classes/datadog_agent_integrations_memcache_spec.rb

require 'spec_helper'

describe 'datadog_agent::integrations::memcache' 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}/mcache.yaml" }

      it { should compile.with_all_deps }
      it { should contain_file(conf_file).with(
        owner: dd_user,
        group: dd_group,
        mode: '0600',
      )}

      it { should contain_file(conf_file).that_requires("Package[#{dd_package}]") }
      it { should contain_file(conf_file).that_notifies("Service[#{dd_service}]") }

      context 'with default parameters' do
        it { should contain_file(conf_file).with_content(%r{url: localhost}) }
        it { should contain_file(conf_file).without_content(/tags:/) }
      end

      context 'with parameters set' do
        let(:params) {{
          url: 'foobar',
          port: '11212',
          items: 'true',
          slabs: 'true',
          tags: %w{foo bar baz},
        }}
        it { should contain_file(conf_file).with_content(%r{url: foobar}) }
        it { should contain_file(conf_file).with_content(/port: 11212/) }
        it { should contain_file(conf_file).with_content(/items: true/) }
        it { should contain_file(conf_file).with_content(/slabs: true/) }
      end

      context 'with tags parameter single value' do
        let(:params) {{
          tags: 'foo',
        }}
        it { should_not compile }

        skip "this is currently unimplemented behavior" do
          it { should contain_file(conf_file).with_content(/tags:\s+- foo\s*?[^-]/m) }
        end
      end

      context 'with tags parameter array' do
        let(:params) {{
          tags: %w{ foo bar baz },
        }}
        it { should contain_file(conf_file).with_content(/tags:\s+- foo\s+- bar\s+- baz\s*?[^-]/m) }
      end

      context 'with tags parameter empty values' do
        context 'mixed in with other tags' do
          let(:params) {{
            tags: [ 'foo', '', 'baz' ]
          }}
          it { should contain_file(conf_file).with_content(/tags:\s+- foo\s+- baz\s*?[^-]/m) }
        end

        context 'single element array of an empty string' do
          let(:params) {{
            tags: [''],
          }}

          skip("undefined behavior")
        end

        context 'single value empty string' do
          let(:params) {{
            tags: '',
          }}

          skip("doubly undefined behavior")
        end
      end

      context 'with multiple instances set' do
        let(:params) {
          {
            instances: [
              {
                'url'   => 'localhost',
                'port'  => '11211',
                'items' => true,
                'slabs' => true,
                'tags'  => ['tag1:value1'],
              },
              {
                'url'   => 'foo.bar',
                'port'  => '11212',
                'items' => false,
                'slabs' => false,
                'tags'  => ['tag2:value2'],
              }
            ]
          }
        }
        it { should contain_file(conf_file).with_content(%r{instances:}) }
        it { should contain_file(conf_file).with_content(%r{  - url: localhost}) }
        it { should contain_file(conf_file).with_content(%r{    port: 11211}) }
        it { should contain_file(conf_file).with_content(%r{    items: true}) }
        it { should contain_file(conf_file).with_content(%r{    slabs: true}) }
        it { should contain_file(conf_file).with_content(%r{    tags:}) }
        it { should contain_file(conf_file).with_content(%r{      - tag1:value1}) }
        it { should contain_file(conf_file).with_content(%r{  - url: foo.bar}) }
        it { should contain_file(conf_file).with_content(%r{    port: 11212}) }
        it { should contain_file(conf_file).with_content(%r{    items: false}) }
        it { should contain_file(conf_file).with_content(%r{    slabs: false}) }
        it { should contain_file(conf_file).with_content(%r{    tags:}) }
        it { should contain_file(conf_file).with_content(%r{      - tag2:value2}) }
      end
    end
  end
end