PHPUnit + Laravel单元测试常用技能
1. 数据供给器
用来提供参数和结果,使用 @dataProvider 标注来指定使用哪个数据供给器方法。例如检测app升级数据是否符合预期,addProviderAppUpdateData()提供测试的参数和结果。testAppUpdateData()检测appUpdateData()返回的结果是否和给定的预期结果相等,即如果appId='apple_3.3.2_117', result=['status' = 0, 'isIOS' = false], 则
示例代码:
<?php
namespace TestsUnit;
use AppServicesClientService;
use TestsTestCase;
class ClientServiceTest extends TestCase
{
/**
* @dataProvider addProviderAppUpdateData
*
* @param $appId
* @param $result
*/
public function testAppUpdateData($appId, $result)
{
$data = (new ClientService($appId))- appUpdateData();
$this- assertTrue(count(array_intersect_assoc($data, $result)) == count($result));
}
public function addProviderAppUpdateData()
{
return [
'null' = [null, ['status' = 0, 'isIOS' = false, 'latest_version' = 'V']],
'error app id' = ['sdas123123', ['status' = 0, 'isIOS' = false, 'latest_version' = 'V']],
'android force update' = ['bx7_3.3.5_120', ['status' = 0, 'isIOS' = false]],
'ios force update' = ['apple_3.3.2_117', ['status' = 1, 'isIOS' = true]],
'android soft update' = ['sanxing_3.3.2_117', ['status' = 2, 'isIOS' = false]],
'ios soft update' = ['apple_3.3.3_118', ['status' = 2, 'isIOS' = true]],
'android normal' = ['fhqd_3.3.6_121', ['status' = 1, 'isIOS' = false]],
'ios normal' = ['apple_3.3.5_120', ['status' = 1, 'isIOS' = true]],
'h5' = ['h5_3.3.3', ['status' = 1, 'isIOS' = false]]
];
}
}
断言成功结果:
2. 断言方法
常用有assertTrue(), assertFalse(), assertNull(), assertEquals(), assertThat()。
assertThat()自定义断言。常用的约束有isNull()、isTrue()、isFalse()、isInstanceOf();常用的组合约束logicalOr()、logicalAnd()
。例如检测返回的结果是否是null或ApiApp类。
示例代码:
<?php
namespace TestsUnit;
use AppModelsApiApp;
use AppServicesSystemConfigService;
use TestsTestCase;
class SystemConfigServiceTest extends TestCase
{
/**
* @dataProvider additionProviderGetLatestUpdateAppApi
*
* @param $appType
*/
public function testGetLatestUpdateAppApi($appType)
{
$result = SystemConfigService::getLatestUpdateAppApi($appType);
$this- assertThat($result, $this- logicalOr($this- isNull(), $this- isInstanceOf(ApiApp::class)));
}
public function additionProviderGetLatestUpdateAppApi()
{
return [
'apple' = [1],
'android' = [2],
'null' = [9999]
];
}
}
断言成功结果:
3. 对异常进行测试
使用expectExceptionCode()
对错误码进行检测,不建议对错误信息文案进行检测。例如检测设备被锁后是否抛出3026错误码。
示例代码:
<?php
namespace TestsUnit;
use AppServicesUserSecurityService;
use IlluminateSupportFacadesCache;
use TestsTestCase;
class UserSecurityServiceTest extends TestCase
{
public static $userId = 4;
/**
* 设备锁检测
* @throws AppExceptionsUserException
*/
public function testDeviceCheckLock()
{
$this- expectExceptionCode(3026);
Cache::put('device-login-error-account-', '1,2,3,4,5', 300);
UserSecurityService::$request = null;
UserSecurityService::$udid = null;
UserSecurityService::deviceCheck(self::$userId);
}
}
断言成功结果:
4. 测试私有属性和私有方法使用反射机制
如果只测试私有方法可使用ReflectionMethod()
反射方法,使用setAccessible(true)
设置方法可访问,并使用invokeArgs()或invoke()
调用方法(invokeArgs将参数作为数组传递)。例如检测IP是否在白名单中。
示例代码:
被检测代码:
namespace AppFacadesServices;
/**
* Class WebDefender
*/
class WebDefenderService extends BaseService
{
//ip白名单
private $ipWhiteList = [
'10.*',
'172.18.*',
'127.0.0.1'
];
/**
* ip是否在白名单中
*
* @param string $ip
*
* @return bool
*/
private function checkIPWhiteList($ip)
{
if (!$this- ipWhiteList || !is_array($this- ipWhiteList)) {
return false;
}
foreach ($this- ipWhiteList as $item) {
if (preg_match("/{$item}/", $ip)) {
return true;
}
}
return false;
}
}
检测方法:
<?php
namespace TestsUnit;
use AppFacadesServicesWebDefenderService;
use TestsTestCase;
class WebDefenderTest extends TestCase
{
/**
* 测试IP白名单
* @dataProvider additionProviderIp
*
* @param $ip
* @param $result
*
* @throws ReflectionException
*/
public function testIPWhite($ip, $result)
{
$checkIPWhiteList = new ReflectionMethod(WebDefenderService::class, 'checkIPWhiteList');
$checkIPWhiteList- setAccessible(true);
$this- assertEquals($result, $checkIPWhiteList- invokeArgs(new WebDefenderService(), [$ip]));
}
public function additionProviderIp()
{
return [
'10 ip' = ['10.1.1.7', true],
'172 ip' = ['172.18.2.5', true],
'127 ip' = ['127.0.0.1', true],
'192 ip' = ['192.168.0.1', false]
];
}
}
测试私有属性可使用ReflectionClass()
, 获取属性用getProperty()
, 设置属性的值用setValue()
, 获取方法用getMethod()
, 设置属性和方法可被访问使用setAccessible(true)
。例如检测白名单路径。
示例代码:
被检测代码:
<?php
namespace AppFacadesServices;
use AppExceptionsExceptionCode;
use AppExceptionsUserException;
use IlluminateSupportFacadesCache;
/**
* CC攻击防御器
* Class WebDefender
*/
class WebDefenderService extends BaseService
{
//路径白名单(正则)
private $pathWhiteList = [
//'^auth/(.*)',
];
private static $request = null;
/**
* 请求路径是否在白名单中
*
* @return bool
*/
private function checkPathWhiteList()
{
$path = ltrim(self::$request- getPathInfo(), '/');
if (!$path || !$this- pathWhiteList || !is_array($this- pathWhiteList)) {
return false;
}
foreach ($this- pathWhiteList as $item) {
if (preg_match("/$item/", $path)) {
return true;
}
}
return false;
}
}
检测方法:
<?php
namespace TestsUnit;
use AppFacadesServicesWebDefenderService;
use IlluminateHttpRequest;
use TestsTestCase;
class WebDefenderTest extends TestCase
{
/**
* 检测白名单路径
* @dataProvider additionProviderPathWhiteList
*
* @param $pathProperty
* @param $request
* @param $result
*
* @throws ReflectionException
*/
public function testCheckPathWhiteList($pathProperty, $request, $result)
{
$reflectedClass = new ReflectionClass('AppFacadesServicesWebDefenderService');
$webDefenderService = new WebDefenderService();
$reflectedPathWhiteList = $reflectedClass- getProperty('pathWhiteList');
$reflectedPathWhiteList- setAccessible(true);
$reflectedPathWhiteList- setValue($webDefenderService, $pathProperty);
$reflectedRequest = $reflectedClass- getProperty('request');
$reflectedRequest- setAccessible(true);
$reflectedRequest- setValue($request);
$reflectedMethod = $reflectedClass- getMethod('checkPathWhiteList');
$reflectedMethod- setAccessible(true);
$this- assertEquals($result, $reflectedMethod- invoke($webDefenderService));
}
public function additionProviderPathWhiteList()
{
$allPath = ['.*'];
$checkPath = ['^auth/(.*)'];
$authSendSmsRequest = new Request([], [], [], [], [], ['HTTP_HOST' = 'api.dev.com', 'REQUEST_URI' = '/auth/sendSms']);
$indexRequest = new Request([], [], [], [], [], ['HTTP_HOST' = 'api.dev.com', 'REQUEST_URI' = '/']);
$noMatchRequest = new Request([], [], [], [], [], ['HTTP_HOST' = 'api.dev.com', 'REQUEST_URI' = '/product/sendSms']);
return [
'index' = [[], $authSendSmsRequest, false],
'no request' = [$allPath, $indexRequest, false],
'all request' = [$allPath, $authSendSmsRequest, true],
'check auth sms' = [$checkPath, $authSendSmsRequest, true],
'check path no match' = [$checkPath, $noMatchRequest, false]
];
}
}
5. 代码覆盖率
使用–coverage-html导出的报告含有类与特质覆盖率、行覆盖率
、函数与方法覆盖率。可查看当前单元测试覆盖的范围。例如输出WebDefenderTest的代码覆盖率到桌面(phpunit tests/unit/WebDefenderTest –coverage-html ~/Desktop/test)
6. 指定代码覆盖率报告要包含哪些文件
在配置文件(phpunit.xml)里设置whitelist中的processUncoveredFilesFromWhitelist=true, 设置目录用<directory 标签,设置文件用<file 标签。例如指定app/Services目录下的所有文件和app/Facades/Services/WebDefenderService.php在报告中。
示例代码:
<?xml version="1.0" encoding="UTF-8"?
<phpunit backupGlobals="false"
backupStaticAttributes="false"
bootstrap="tests/bootstrap.php"
colors="true"
convertErrorsToExceptions="true"
convertNoticesToExceptions="true"
convertWarningsToExceptions="true"
processIsolation="false"
stopOnFailure="false"
<testsuites
<testsuite name="Unit"
<directory suffix="Test.php" ./tests/Unit</directory
</testsuite
<testsuite name="Feature"
<directory suffix="Test.php" ./tests/Feature</directory
</testsuite
</testsuites
<filter
<whitelist processUncoveredFilesFromWhitelist="true"
<directory suffix=".php" ./app/Services</directory
<file ./app/Facades/Services/WebDefenderService.php</file
</whitelist
</filter
<php
<server name="APP_ENV" value="local"/
<server name="BCRYPT_ROUNDS" value="4"/
<server name="CACHE_DRIVER" value="credis"/
<server name="MAIL_DRIVER" value="array"/
<server name="QUEUE_CONNECTION" value="sync"/
<server name="SESSION_DRIVER" value="array"/
<server name="APP_CONFIG_CACHE" value="bootstrap/cache/config.phpunit.php"/
<server name="APP_SERVICES_CACHE" value="bootstrap/cache/services.phpunit.php"/
<server name="APP_PACKAGES_CACHE" value="bootstrap/cache/packages.phpunit.php"/
<server name="APP_ROUTES_CACHE" value="bootstrap/cache/routes.phpunit.php"/
<server name="APP_EVENTS_CACHE" value="bootstrap/cache/events.phpunit.php"/
</php
</phpunit
7. 参考文档
PHPUnit官方文档 https://phpunit.readthedocs.io/zh_CN/latest/index.html 反射类 https://www.php.net/manual/en/class.reflectionclass.php 反射方法 https://www.php.net/manual/en/class.reflectionmethod.php
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