Chef Kitchen测试
Test kitchen 是 Chef 的集成测试框架。它支持编写测试，这些测试在使用说明书实例化和聚合 VM 之后运行。测试在 VM 上运行，可以验证一切是否按预期工作。
这是 ChefSpec 的节点契约，它仅模拟 Chef 运行。 Test Kitchen 启动一个真实节点并在其上运行 Chef。
设置
为了做到这一点，我们需要在机器上安装 Vagrant，这有助于管理虚拟机。然后我们需要安装 bookshelf 并与 Vagrant 挂钩，以便管理说明书依赖项。
步骤 1-编辑Cookbook中的默认Cookbook。
vipin@laptop:~/chef-repo $ subl cookbooks/<Cookbook Name>/recipes/default.rb
file "/tmp/greeting.txt" do
content node['my_cookbook']['greeting']
end
第 2 步-编辑Cookbook属性。
vipin@laptop:~/chef-repo $ subl cookbooks/<Cookbook Name>/attributes/default.rb
default['my_cookbook']['greeting'] = "Ohai, Chefs!"
步骤 3-编辑 gem 文件以安装必要的 Ruby gem。
vipin@laptop:~/chef-repo $ subl Gemfile
gem 'test-kitchen', '~> 2.0.0.alpha.7'
gem 'kitchen-vagrant'
步骤 4-安装必要的 Ruby gem。
vipin@laptop:~/chef-repo $ bundle install
...TRUNCATED OUTPUT...
Installing test-kitchen (1.0.0.alpha.7)
Installing kitchen-vagrant (0.10.0) ...TRUNCATED OUTPUT...
步骤 5-在说明书中创建 .kitchen.yml 文件。
vipin@laptop:~/chef-repo/cookbooks/my_cookbook $ subl .kitchen.yml
---
driver_plugin: vagrant
driver_config:
require_chef_omnibus: true
platforms:
-name: ubuntu-12.04
driver_config:
box: opscode-ubuntu-12.04
box_url:
https://opscode-vm.s3.amazonaws.com/vagrant/
opscode_ubuntu12.04_provisionerless.box
suites:
-name: default
run_list:
-recipe[minitest-handler]
-recipe[my_cookbook_test]
attributes: { my_cookbook: { greeting: 'Ohai, Minitest!'} }
步骤 6-在说明书中创建一个测试目录。
vipin@laptop:~/chef-repo/cookbooks/<Cookbook Name>$ mkdir test
步骤 7-为集成测试创建测试手册。
vipin@laptop:~/chef-repo/cookbooks/<Cookbook Name>/test $ knife
cookbook create my_cookbook_test
** Creating cookbook my_cookbook_test
** Creating README for cookbook: my_cookbook_test
** Creating CHANGELOG for cookbook: my_cookbook_test
** Creating metadata for cookbook: my_cookbook_test
第 8 步-编辑测试Cookbook默认配方。
vipin@laptop:~/chef-repo/cookbooks/my_cookbook $ subl
test/cookbooks/my_cookbook_test/recipes/default.rb
include_recipe 'my_cookbook::default'
第 9 步-在说明书中创建 Minitest Spec。
vipin@laptop:~/chef-repo/cookbooks/my_cookbook $ mkdir-p
test/cookbooks/my_cookbook_test/files/default/tests/minitest
vipin@laptop:~/chef-repo/cookbooks/my_cookbook $ subl
test/cookbooks/my_cookbook_test/files/default/tests/minitest/default_test.rb
require 'minitest/spec'
describe_recipe 'my_cookbook::default' do
describe "greeting file" do
it "creates the greeting file" do
file("/tmp/greeting.txt").must_exist
end
it "contains what's stored in the 'greeting' node
attribute" do
file('/tmp/greeting.txt').must_include 'Ohai, Minitest!'
end
end
第 10 步-编辑主Cookbook的 Berksfile。
vipin@laptop:~/chef-repo/cookbooks/my_cookbook $ subl Berksfile
site :opscode
metadata
cookbook "apt"
cookbook "minitest-handler"
cookbook "my_cookbook_test", path:
"./test/cookbooks/my_cookbook_test"
测试设置
vipin@laptop:~/chef-repo/cookbooks/my_cookbook $ kitchen test
-----> Starting Kitchen (v1.0.0.alpha.7)
...TRUNCATED OUTPUT...
-----> Converging <default-ubuntu-1204>
-----> Installing Chef Omnibus (true)
...TRUNCATED OUTPUT...
Starting Chef Client, version 11.4.4
[2013-06-29T18:33:57+00:00] INFO: *** Chef 11.4.4 ***
[2013-06-29T18:33:58+00:00] INFO: Setting the run_list to
["recipe[minitest-handler]", "recipe[my_cookbook_test]"]
from JSON
...TRUNCATED OUTPUT...
# Running tests:
recipe::my_cookbook::default::greeting
file#test_0001_creates the greeting file = 0.00 s = .
recipe::my_cookbook::default::greeting
file#test_0002_contains what's stored in the 'greeting'
node attribute = 0.00 s = .
Finished tests in 0.011190s, 178.7277 tests/s, 178.7277
assertions/s.
2 tests, 2 assertions, 0 failures, 0 errors, 0 skips
...TRUNCATED OUTPUT...
-----> Kitchen is finished. (2m5.69s)
