[2.x] Dispatch Event when Two Factor Challenged (laravel#239)

* dispatch event when two factor challenged and test

* use statements styleci

(cherry picked from commit b490728)

src/Actions/RedirectIfTwoFactorAuthenticatable.php

@@ -5,6 +5,7 @@
 use Illuminate\Auth\Events\Failed;
 use Illuminate\Contracts\Auth\StatefulGuard;
 use Illuminate\Validation\ValidationException;
+use Laravel\Fortify\Events\TwoFactorAuthenticationChallenged;
 use Laravel\Fortify\Fortify;
 use Laravel\Fortify\LoginRateLimiter;
 use Laravel\Fortify\TwoFactorAuthenticatable;
@@ -132,6 +133,8 @@ protected function twoFactorChallengeResponse($request, $user)
             'login.remember' => $request->filled('remember'),
         ]);
 
+        TwoFactorAuthenticationChallenged::dispatch($user);
+
         return $request->wantsJson()
                     ? response()->json(['two_factor' => true])
                     : redirect()->route('two-factor.login');

src/Events/TwoFactorAuthenticationChallenged.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace Laravel\Fortify\Events;
+
+class TwoFactorAuthenticationChallenged extends TwoFactorAuthenticationEvent
+{
+    //
+}

tests/AuthenticatedSessionControllerTest.php

@@ -5,8 +5,10 @@
 use Illuminate\Contracts\Auth\Authenticatable;
 use Illuminate\Foundation\Auth\User;
 use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\Event;
 use Illuminate\Support\Facades\Schema;
 use Laravel\Fortify\Contracts\LoginViewResponse;
+use Laravel\Fortify\Events\TwoFactorAuthenticationChallenged;
 use Laravel\Fortify\Features;
 use Laravel\Fortify\FortifyServiceProvider;
 use Laravel\Fortify\LoginRateLimiter;
@@ -48,6 +50,8 @@ public function test_user_can_authenticate()
 
     public function test_user_is_redirected_to_challenge_when_using_two_factor_authentication()
     {
+        Event::fake();
+
         app('config')->set('auth.providers.users.model', TestTwoFactorAuthenticationSessionUser::class);
 
         $this->loadLaravelMigrations(['--database' => 'testbench']);
@@ -69,6 +73,8 @@ public function test_user_is_redirected_to_challenge_when_using_two_factor_authe
         ]);
 
         $response->assertRedirect('/two-factor-challenge');
+
+        Event::assertDispatched(TwoFactorAuthenticationChallenged::class);
     }
 
     public function test_user_can_authenticate_when_two_factor_challenge_is_disabled()