datadog_agent_integrations_docker_spec.rb

require 'spec_helper'

describe 'datadog_agent::integrations::docker' do
  let(:facts) {{
    operatingsystem: 'Ubuntu',
  }}
  let(:conf_dir) { '/etc/dd-agent/conf.d' }
  let(:dd_user) { 'dd-agent' }
  let(:dd_group) { 'root' }
  let(:dd_package) { 'datadog-agent' }
  let(:dd_service) { 'datadog-agent' }
  let(:conf_file) { "#{conf_dir}/docker.yaml" }

  it { should compile.with_all_deps }
  it { should contain_file(conf_file).with(
    owner: dd_user,
    group: dd_group,
    mode: '0644',
  )}
  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: unix://var/run/docker.sock}) }
    it { should contain_file(conf_file).with_content(/new_tag_names: true/) }
    it { should contain_file(conf_file).without_content(/tags: /) }
  end

  context 'with parameters set' do
    let(:params) {{
      url: 'unix://foo/bar/baz.sock',
      new_tag_names: false,
    }}
    it { should contain_file(conf_file).with_content(%r{url: unix://foo/bar/baz.sock}) }
    it { should contain_file(conf_file).with_content(/new_tag_names: false/) }
  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 with an empty tag' do
  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

end