我正在尝试创建单元测试来测试一些特定的类。我用 app()->make()实例化要测试的类。所以实际上，不需要 HTTP 请求。
但是，一些经过测试的函数需要来自路由参数的信息，以便它们进行调用，例如request()->route()->parameter('info') ，这会引发异常:

Call to a member function parameter() on null.

request()->attributes = new \Symfony\Component\HttpFoundation\ParameterBag(['info' => 5]);  

request()->route(['info' => 5]);  

request()->initialize([], [], ['info' => 5], [], [], [], null);

class SomeTest extends TestCase
{
    public function test_info()
    {
        $info = request()->route()->parameter('info');
        $this->assertEquals($info, 'hello_world');
    }
}

最佳答案

我假设您需要模拟 一个请求而不实际调度它。模拟请求到位后，您希望探测它的参数值并开发您的测试用例。

有一种未记录的方法可以做到这一点。你会感到惊讶!

问题

如您所知，Laravel 的 Illuminate\Http\Request 类(class)建立在 Symfony\Component\HttpFoundation\Request .上游类不允许您在 setRequestUri() 中手动设置请求 URI。大大地。它根据实际的请求 header 计算出来。没有其他办法。

好了，闲聊就够了。让我们尝试模拟一个请求:

<?php

use Illuminate\Http\Request;

class ExampleTest extends TestCase
{
    public function testBasicExample()
    {
        $request = new Request([], [], ['info' => 5]);

        dd($request->route()->parameter('info'));
    }
}

Error: Call to a member function parameter() on null

<?php

use Illuminate\Http\Request;
use Illuminate\Routing\Route;

class ExampleTest extends TestCase
{
    public function testBasicExample()
    {
        $request = new Request([], [], ['info' => 5]);

        $request->setRouteResolver(function () use ($request) {
            return (new Route('GET', 'testing/{info}', []))->bind($request);
        });

        dd($request->route()->parameter('info'));
    }
}

Illuminate\Routing\Route {#250
  #uri: "testing/{info}"
  #methods: array:2 [
    0 => "GET"
    1 => "HEAD"
  ]
  #action: array:1 [
    "uses" => null
  ]
  #controller: null
  #defaults: []
  #wheres: []
  #parameters: [] <===================== HERE
  #parameterNames: array:1 [
    0 => "info"
  ]
  #compiled: Symfony\Component\Routing\CompiledRoute {#252
    -variables: array:1 [
      0 => "info"
    ]
    -tokens: array:2 [
      0 => array:4 [
        0 => "variable"
        1 => "/"
        2 => "[^/]++"
        3 => "info"
      ]
      1 => array:2 [
        0 => "text"
        1 => "/testing"
      ]
    ]
    -staticPrefix: "/testing"
    -regex: "#^/testing/(?P<info>[^/]++)$#s"
    -pathVariables: array:1 [
      0 => "info"
    ]
    -hostVariables: []
    -hostRegex: null
    -hostTokens: []
  }
  #router: null
  #container: null
}

/**
 * Get the parameter matches for the path portion of the URI.
 *
 * @param  \Illuminate\Http\Request  $request
 * @return array
 */
protected function bindPathParameters(Request $request)
{
    preg_match($this->compiled->getRegex(), '/'.$request->decodedPath(), $matches);
    return $matches;
}

<?php

use Illuminate\Http\Request;
use Illuminate\Routing\Route;

class ExampleTest extends TestCase
{
    public function testBasicExample()
    {
        $request = new Request([], [], [], [], [], ['REQUEST_URI' => 'testing/5']);

        $request->setRouteResolver(function () use ($request) {
            return (new Route('GET', 'testing/{info}', []))->bind($request);
        });

        dd($request->route()->parameter('info'));
    }
}

<?php

use Illuminate\Http\Request;
use Illuminate\Routing\Route;

class ExampleTest extends TestCase
{

    public function testBasicExample()
    {
        $requestMock = Mockery::mock(Request::class)
            ->makePartial()
            ->shouldReceive('path')
            ->once()
            ->andReturn('testing/5');

        app()->instance('request', $requestMock->getMock());

        $request = request();

        $request->setRouteResolver(function () use ($request) {
            return (new Route('GET', 'testing/{info}', []))->bind($request);
        });

        dd($request->route()->parameter('info'));
    }
}

关于php - 在 Laravel 测试用例中模拟一个 http 请求并解析路由参数，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41461497/