[5.5] Add withMiddleware function in MakesHttpRequests (#22060)

* Add withMiddleware function inMakesHttpRequests and add tests for with and without methods.

* Update MakesHttpRequests.php

* Update MakesHttpRequests.php

* Fix style.

src/Illuminate/Foundation/Testing/Concerns/MakesHttpRequests.php

@@ -110,6 +110,27 @@ public function handle($request, $next)
         return $this;
     }
 
+    /**
+     * Enable the given middleware for the test.
+     *
+     * @param  string|array  $middleware
+     * @return $this
+     */
+    public function withMiddleware($middleware = null)
+    {
+        if (is_null($middleware)) {
+            unset($this->app['middleware.disable']);
+
+            return $this;
+        }
+
+        foreach ((array) $middleware as $abstract) {
+            unset($this->app[$abstract]);
+        }
+
+        return $this;
+    }
+
     /**
      * Automatically follow any redirects returned from the response.
      *

tests/Foundation/Testing/Concerns/MakesHttpRequestsTest.php

@@ -0,0 +1,55 @@
+<?php
+
+namespace Illuminate\Tests\Foundation\Http\Middleware;
+
+use Orchestra\Testbench\TestCase;
+
+class MakesHttpRequestsTest extends TestCase
+{
+    public function testWithoutAndWithMiddleware()
+    {
+        $this->assertFalse($this->app->has('middleware.disable'));
+
+        $this->withoutMiddleware();
+        $this->assertTrue($this->app->has('middleware.disable'));
+        $this->assertTrue($this->app->make('middleware.disable'));
+
+        $this->withMiddleware();
+        $this->assertFalse($this->app->has('middleware.disable'));
+    }
+
+    public function testWithoutAndWithMiddlewareWithParameter()
+    {
+        $next = function ($request) {
+            return $request;
+        };
+
+        $this->assertFalse($this->app->has(MyMiddleware::class));
+        $this->assertEquals(
+            'fooWithMiddleware',
+            $this->app->make(MyMiddleware::class)->handle('foo', $next)
+        );
+
+        $this->withoutMiddleware(MyMiddleware::class);
+        $this->assertTrue($this->app->has(MyMiddleware::class));
+        $this->assertEquals(
+            'foo',
+            $this->app->make(MyMiddleware::class)->handle('foo', $next)
+        );
+
+        $this->withMiddleware(MyMiddleware::class);
+        $this->assertFalse($this->app->has(MyMiddleware::class));
+        $this->assertEquals(
+            'fooWithMiddleware',
+            $this->app->make(MyMiddleware::class)->handle('foo', $next)
+        );
+    }
+}
+
+class MyMiddleware
+{
+    public function handle($request, $next)
+    {
+        return $next($request.'WithMiddleware');
+    }
+}