使用PHPUnit进行单元测试并生成代码覆盖率报告的

#查看composer的全局bin目录 将其加入系统 path 路径 方便后续直接运行安装的命令
composer global config bin-dir --absolute
#全局安装 phpunit
composer global require --dev phpunit/phpunit
#查看版本
phpunit --version

mkdir unit && cd unit && mkdir app tests reports
#结构如下
./
├── app #存放业务代码
├── reports #存放覆盖率报告
└── tests #存放单元测试

#一路回车即可
composer init

#注册命名空间
vi composer.json
...
  "autoload": {
    "psr-4": {
      "App\\": "app/",
      "Tests\\": "tests/"
    }
  }
...
#更新命名空间
composer dump-autoload

#安装 phpunit 组件库
composer require --dev phpunit/phpunit

<?php
namespace App;

class Example
{
  private $msg = "hello world";

  public function getTrue()
  {
    return true;
  }

  public function getFalse()
  {
    return false;
  }

  public function setMsg($value)
  {
    $this->msg = $value;
  }

  public function getMsg()
  {
    return $this->msg;
  }
}

<?php
namespace Tests;

use PHPUnit\Framework\TestCase as BaseTestCase;
use App\Example;

class ExampleTest extends BaseTestCase
{
  public function testGetTrue()
  {
    $example = new Example();
    $result = $example->getTrue();
    $this->assertTrue($result);
  }
  
  public function testGetFalse()
  {
    $example = new Example();
    $result = $example->getFalse();
    $this->assertFalse($result);
  }
  
  public function testGetMsg()
  {
    $example = new Example();
    $result = $example->getTrue();
    // $result is world not big_cat
    $this->assertEquals($result, "hello big_cat");
  }
}

[root@localhost unit]# phpunit --bootstrap=vendor/autoload.php \
tests/

PHPUnit 6.5.14 by Sebastian Bergmann and contributors.

..F                                 3 / 3 (100%)

Time: 61 ms, Memory: 4.00MB

There was 1 failure:

1) Tests\ExampleTest::testGetMsg
Failed asserting that 'hello big_cat' matches expected true.

/opt/unit/tests/ExampleTest.php:27
/root/.config/composer/vendor/phpunit/phpunit/src/TextUI/Command.php:195
/root/.config/composer/vendor/phpunit/phpunit/src/TextUI/Command.php:148

FAILURES!
Tests: 3, Assertions: 3, Failures: 1.