bug #52 Fix request token event (ajgarlag)

This PR was squashed before being merged into the 0.1-dev branch.

Discussion
----------

Fix request token event

I think #49 was merged too soon.

This PR tries to fix the following flaws:

  1. The test expectation is wrong.
  2. The event listener in the test is being added after the event dispatch.
  3. The response set to the event is being discarded by the controller.

Commits
-------

f14c02d Fix request token event

src/Controller/TokenController.php

@@ -70,11 +70,11 @@ public function indexAction(Request $request): Response
         $renderedResponse = $this->httpFoundationFactory->createResponse($response);
 
         /** @var TokenRequestResolveEvent $event */
-        $this->eventDispatcher->dispatch(
+        $event = $this->eventDispatcher->dispatch(
             new TokenRequestResolveEvent($renderedResponse),
             OAuth2Events::TOKEN_REQUEST_RESOLVE
         );
 
-        return $renderedResponse;
+        return $event->getResponse();
     }
 }

tests/Acceptance/TokenEndpointTest.php

@@ -105,20 +105,32 @@ public function testSuccessfulRefreshTokenRequest(): void
             ->get(RefreshTokenManagerInterface::class)
             ->find(FixtureFactory::FIXTURE_REFRESH_TOKEN);
 
-        $this->client->request('POST', '/token', [
-            'client_id' => 'foo',
-            'client_secret' => 'secret',
-            'grant_type' => 'refresh_token',
-            'refresh_token' => TestHelper::generateEncryptedPayload($refreshToken),
-        ]);
-
         $this->client
             ->getContainer()
             ->get('event_dispatcher')
             ->addListener(OAuth2Events::TOKEN_REQUEST_RESOLVE, static function (TokenRequestResolveEvent $event): void {
                 $event->getResponse()->headers->set('foo', 'bar');
             });
 
+        $this->client
+            ->getContainer()
+            ->get('event_dispatcher')
+            ->addListener(OAuth2Events::TOKEN_REQUEST_RESOLVE, static function (TokenRequestResolveEvent $event): void {
+                if ('bar' === $event->getResponse()->headers->get('foo')) {
+                    $newResponse = clone $event->getResponse();
+                    $newResponse->headers->remove('foo');
+                    $newResponse->headers->set('baz', 'qux');
+                    $event->setResponse($newResponse);
+                }
+            }, -1);
+
+        $this->client->request('POST', '/token', [
+            'client_id' => 'foo',
+            'client_secret' => 'secret',
+            'grant_type' => 'refresh_token',
+            'refresh_token' => TestHelper::generateEncryptedPayload($refreshToken),
+        ]);
+
         $response = $this->client->getResponse();
 
         $this->assertSame(200, $response->getStatusCode());
@@ -131,7 +143,8 @@ public function testSuccessfulRefreshTokenRequest(): void
         $this->assertGreaterThan(0, $jsonResponse['expires_in']);
         $this->assertNotEmpty($jsonResponse['access_token']);
         $this->assertNotEmpty($jsonResponse['refresh_token']);
-        $this->assertEmpty($response->headers->get('foo'), 'bar');
+        $this->assertFalse($response->headers->has('foo'));
+        $this->assertSame($response->headers->get('baz'), 'qux');
     }
 
     public function testSuccessfulAuthorizationCodeRequest(): void