Update test-environment-setup.md

docs/guide-zh-CN/test-environment-setup.md

@@ -1,8 +1,6 @@
-配置测试环境
+测试环境设置
 ======================
 
-> 注意：本章节内容还在开发中
-
 Yii 2 官方兼容 [`Codeception`](https://github.com/Codeception/Codeception) 测试框架，
 你可以创建以下类型的测试：
 
@@ -14,36 +12,12 @@ Yii 为包括 [`yii2-basic`](https://github.com/yiisoft/yii2/tree/master/apps/ba
 [`yii2-advanced`](https://github.com/yiisoft/yii2/tree/master/apps/advanced) 
 在内的应用模板脚手架提供全部三种类型的即用测试套件。
 
-为了运行测试用例，你需要安装 [Codeception](https://github.com/Codeception/Codeception) 。
-一个较好的安装方式是：
-
-For the local installation use following commands:
+Codeception 预装了基本和高级项目模板。
+如果您没有使用这些模板中的一个，则可以安装 Codeception
+通过输入以下控制台命令：
 
 ```
-composer require-dev "codeception/codeception=*"
-composer require-dev "codeception/specify=*"
-composer require-dev "codeception/verify=*"
+composer require codeception/codeception
+composer require codeception/specify
+composer require codeception/verify
 ```
-
-For the global installation you will need to use `global` directive:
-
-```
-composer global require "codeception/codeception=*"
-composer global require "codeception/specify=*"
-composer global require "codeception/verify=*"
-```
-
-如果你从未通过 Composer 安装过全局的扩展包，运行 `composer global status` 。你的窗口应该输出类似如下：
-
-```
-Changed current directory to <directory>
-```
-
-然后，将 `<directory>/vendor/bin` 增加到你的 `PATH` 环境变量中。现在，
-我们可以在命令行中全局的使用 `codecept` 命令了。
-
-> 注意：global installation allows you use Codeception for all projects you are working on your development machine and
-  allows running `codecept` shell command globally without specifying path. However, such approach may be inappropriate,
-  for example, if 2 different projects require different versions of Codeception installed.
-  For the simplicity all shell commands related to the tests running around this guide are written assuming Codeception
-  has been installed globally.