我对
Ruby很陌生,但过去两周我一直在做大量的厨师测试研究.该测试使用ChefSpec& Fauxhai,但它看起来并不是“ruby-ish”,我希望社区可以给我一些关于编码风格的指示.有没有更好的方法来编写这样的嵌套循环？
食谱/富/食谱/ default.rb
package "foo" do action :install end
食谱/富/规格/ default_spec.rb
require 'chefspec'
describe 'foo::default' do
platforms = {
"debian" => ['6.0.5'],"ubuntu" => ['12.04','10.04'],"centos" => ['5.8','6.0','6.3'],"redhat" => ['5.8',"mac_os_x" => ['10.6.8','10.7.4','10.8.2'],"windows" => ['2008R2']
}
platforms.each do |platform,versions|
versions.each do |version|
context "on #{platform} #{version}" do
before do
Fauxhai.mock(platform: platform,version: version)
end
it 'should install foo' do
@runner = ChefSpec::ChefRunner.new.converge('foo::default')
@runner.should install_package 'foo'
end
end
end
end
end
欢迎任何和所有反馈.谢谢！
解决方法
首先,一个常见的做法是提取ChefRunner实例化以让佣工.您还可以在那里包含所有Fauxhai配置：
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
应该是期望语法似乎是recommended.但是在这个例子中我会使用一个单行：
subject do
ChefSpec::ChefRunner.new(platform: platform,version: version).converge('foo::default')
end
it { should install_package 'foo' }
要清理循环,可以使用RSpec’s shared examples.更多扩展示例：
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' => ['6.0.5'],'ubuntu' => ['12.04','centos' => ['5.8','redhat' => ['5.8','mac_os_x' => ['10.6.8','windows' => ['2008R2']
}
platforms.each do |platform,versions|
versions.each do |version|
include_examples 'foo',platform,version
end
end
end