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    copied!<p>First, a common practice is to extract <code>ChefRunner</code> instantiation to <code>let</code> helper. You can also include all Fauxhai configuration there:</p> <pre><code>let(:chef_run) do ChefSpec::ChefRunner.new(platform: platform, version: version) do |node| node.set['foo']['bar'] = 'baz' # .... end.converge('foo::default') end it "installs foo" do expect(chef_run).to install_package 'foo' end </code></pre> <p>The <code>expect</code> syntax seems to be <a href="https://github.com/rspec/rspec-expectations/blob/master/Should.md" rel="nofollow">recommended</a> over <code>should</code>. But in this example I would use a one-liner:</p> <pre><code>subject do ChefSpec::ChefRunner.new(platform: platform, version: version).converge('foo::default') end it { should install_package 'foo' } </code></pre> <p>To clean up the looping a bit you can use <a href="https://www.relishapp.com/rspec/rspec-core/docs/example-groups/shared-examples" rel="nofollow">RSpec's shared examples</a>. A bit more extended example:</p> <pre><code>require 'chefspec' shared_examples 'foo' do |platform, version| context "on #{platform} #{version}" do let(:users) { %w[user1 user2] } let(:chef_run) do ChefSpec::ChefRunner.new(platform: platform, version: version) do |node| node.set['foo']['users'] = users end.converge('foo::default') end subject { chef_run } it { should install_package 'foo' } it "creates specified users" do users.each { |u| expect(chef_run).to create_user u } end end end describe 'foo::default' do platforms = { 'debian' =&gt; ['6.0.5'], 'ubuntu' =&gt; ['12.04', '10.04'], 'centos' =&gt; ['5.8', '6.0', '6.3'], 'redhat' =&gt; ['5.8', '6.3'], 'mac_os_x' =&gt; ['10.6.8', '10.7.4', '10.8.2'], 'windows' =&gt; ['2008R2'] } platforms.each do |platform, versions| versions.each do |version| include_examples 'foo', platform, version end end end </code></pre>
 

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