由于我正在使用服务,因此这个问题可能最终成为 symfony 中依赖注入的问题。目前我正在尝试通过 phpunit test 在我的服务中测试一个简单的功能,但我不断收到以下错误:
PHP Catchable fatal error: Argument 1 passed to Caremonk\MainSiteBundle\Tests\Services\GeoTest::__construct() must be an instance of Caremonk\MainSiteBundle\Tests\Services\Geo, none given, called in /usr/share/nginx/html/caremonk/vendor/phpunit/phpunit/PHPUnit/Framework/TestSuite.php on line 473 and defined in /usr/share/nginx/html/caremonk/src/Caremonk/MainSiteBundle/Tests/Services/GeoTest.php on line 14
从错误中,很明显我正在尝试创建我的服务实例并且没有传递正确的参数,所以下面是我的 services.yml 文件:
#src/Caremonk/MainSiteBundle/Resources/config/services.yml
parameters:
caremonk_main_site.geo.class: Caremonk\MainSiteBundle\Services\Geo
caremonk_main_site.geo_test.class: Caremonk\MainSiteBundle\Tests\Services\GeoTest
services:
geo:
class: %caremonk_main_site.geo.class%
arguments: []
geo_test:
class: %caremonk_main_site.geo_test.class%
arguments: ["@geo"]
贝娄是我建立的服务:
<?php
//src/Caremonk/MainSiteBundle/Services/Geo.php
namespace Caremonk\MainSiteBundle\Services;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
class Geo extends Controller
{
public $pi80;
public $latRad;
public $lngRad;
public function __construct()
{
$this->pi80 = M_PI / 180;
}
// Takes longitude and latitude and converts them into their respective radians
// We also set our class properties to these values
public function setCoordinates($lat,$lng)
{
$this->latRad = $lat * $this->pi80;
$this->lngRad = $lng * $this->pi80;
}
public function distance($lat2, $lng2, $miles = true)
{
$lat1 = $this->latRad;
$lng1 = $this->lngRad;
$lat2 *= $pi80;
$lng2 *= $pi80;
$r = 6372.797; // mean radius of Earth in km
$dlat = ($lat2 - $lat1)/2;
$dlng = ($lng2 - $lng1)/2;
$a = sin($dlat) * sin($dlat) + cos($lat1) * cos($lat2) * sin($dlng) * sin($dlng);
$c = 2 * atan2(sqrt($a), sqrt(1 - $a));
$km = $r * $c;
return ($miles ? ($km * 0.621371192) : $km);
}
// This function returns the minimum latitude in radians
public function min_lat($lat,$lng,$dis)
{
$dis /= .62137119;
$ratio = $dis/6372.797;
return asin(sin($lat)*cos($ratio) + cos($lat)*sin($ratio)*cos(M_PI));
}
// This function returns the max latitude in radians
public function max_lat($lat,$lng,$dis)
{
$dis /= .62137119;
$ratio = $dis/6372.797;
return asin(sin($lat)*cos($ratio) + cos($lat)*sin($ratio)*cos(0));
}
// This function returns max longitude in radians
public function max_lon($lat,$lng,$dis)
{
$dis /= .62137119;
$ratio = $dis/6372.797;
return $lng + atan2(sin(M_PI/2)*sin($ratio)*cos($lat),cos($ratio)-sin($lat)*sin($lat));
}
// This function returns min longitude in radians
public function min_lon($lat,$lng,$dis)
{
$dis /= .62137119;
$ratio = $dis/6372.797;
return $lng + atan2(sin(M_PI*1.5)*sin($ratio)*cos($lat),cos($ratio)-sin($lat)*sin($lat));
}
}
我的测试文件显示在这里:
<?php
//src/Caremonk/MainSiteBundle/Tests/Services/GeoTest.php
namespace Caremonk\MainSiteBundle\Tests\Services;
use Caremonk\MainSiteBundle\Services;
use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
use Symfony\Component\DependencyInjection\ContainerBuilder;
class GeoTest extends WebTestCase
{
public $geo;
public function __construct(Geo $geo)
{
$this->geo = $geo;
}
public function testSetCoordinates()
{
$this->geo->setCoordinates(4,5);
//print $geoService->distance(6,5);
}
}
最后,我的服务在 app/config.yml 文件中注册如下:
imports:
- { resource: parameters.yml }
- { resource: security.yml }
- { resource: "@CaremonkMainSiteBundle/Resources/config/services.yml" }
# Other config.yml stuff
我没有那么好理解依赖,我希望我在这篇文章中对它的解释接近 symfony 的想法。请让我知道我做错了什么,以便我可以测试我的服务。