安装扩展
首先安装ThinkPHP5的单元测试扩展，进入命令行，切换到应用根目录下面后，执行：
composer require topthink/think-testing
如果没安装composer就会报错。看下面：
＝＝＝
以下都要*，不然连接不上，下面就有几行是因为没连上报的错。
首先要安装composer
php -r "readfile('https://getcomposer.org/installer');" | php
3.chmod +x composer
4.再进行下一步。
macdeMacBook-Pro:tp5 mac$ composer require topthink/think-testing
Using version ^1.0 for topthink/think-testing
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Failed to decode response: zlib_decode(): data error
Retrying with degraded mode, check https://getcomposer.org/doc/articles/troubleshooting.md#degraded-mode for more info
Package operations: 27 installs, 0 updates, 0 removals
- Installing topthink/think-installer (v1.0.11): Downloading (100%)
- Installing topthink/framework (v5.0.7): Downloading (100%)
- Installing symfony/polyfill-mbstring (v1.3.0): Downloading (35%)
Downloading (100%)
- Installing symfony/dom-crawler (v2.8.18): Downloading (100%)
- Installing symfony/yaml (v3.2.5): Downloading (100%)
- Installing sebastian/version (1.0.6): Downloading (100%)
- Installing sebastian/global-state (1.1.1): Downloading (failed)
Downloading (100%)
- Installing sebastian/recursion-context (1.0.5): Downloading (100%)
- Installing sebastian/exporter (1.2.2): Downloading (failed)
Downloading (100%)
- Installing sebastian/environment (1.3.8): Downloading (100%)
- Installing sebastian/diff (1.4.1): Downloading (100%)
- Installing sebastian/comparator (1.2.4): Downloading (100%)
- Installing doctrine/instantiator (1.0.5): Downloading (100%)
- Installing phpunit/php-text-template (1.2.1): Downloading (100%)
- Installing phpunit/phpunit-mock-objects (2.3.8): Downloading (95%)
Downloading (100%)
- Installing phpunit/php-timer (1.0.9): Downloading (100%)
- Installing phpunit/php-file-iterator (1.4.2): Downloading (100%)
- Installing phpunit/php-token-stream (1.4.11): Downloading (100%)
- Installing phpunit/php-code-coverage (2.2.4): Downloading (100%)
- Installing webmozart/assert (1.2.0): Downloading (100%)
- Installing phpdocumentor/reflection-common (1.0): Downloading (100%)
- Installing phpdocumentor/type-resolver (0.2.1): Downloading (100%)
- Installing phpdocumentor/reflection-docblock (3.1.1): Downloading (100%)
- Installing phpspec/prophecy (v1.7.0): Downloading (100%)
- Installing phpunit/phpunit (4.8.35): Downloading (100%)
- Installing topthink/think-helper (v1.0.5): Downloading (100%)
- Installing topthink/think-testing (v1.0.6): Downloading (100%)
Invalid zip file, retrying...
- Installing topthink/think-testing (v1.0.6): Downloading (100%)
symfony/dom-crawler suggests installing symfony/css-selector ()
symfony/yaml suggests installing symfony/console (For validating YAML files using the lint command)
sebastian/global-state suggests installing ext-uopz (*)
phpunit/php-code-coverage suggests installing ext-xdebug (>=2.2.1)
phpunit/phpunit suggests installing phpunit/php-invoker (~1.1)
Writing lock file
Generating autoload files
macdeMacBook-Pro:tp5 mac$