[Security][Tests] Update functional tests to better reflect end-user scenarios

Author: llupa

src/Symfony/Bundle/SecurityBundle/Tests/Functional/AuthenticatorTest.php

@@ -126,13 +126,13 @@ public function testCustomFailureHandler()
 
         $client->request('POST', '/firewall1/login', [
             '_username' => 'jane@example.org',
-            '_password' => '',
+            '_password' => 'wrong',
         ]);
         $this->assertResponseRedirects('http://localhost/firewall1/login');
 
         $client->request('POST', '/firewall1/dummy_login', [
             '_username' => 'jane@example.org',
-            '_password' => '',
+            '_password' => 'wrong',
         ]);
         $this->assertResponseRedirects('http://localhost/firewall1/dummy_login');
     }

src/Symfony/Bundle/SecurityBundle/Tests/Functional/CsrfFormLoginTest.php

@@ -68,6 +68,8 @@ public function testFormLoginWithInvalidCsrfToken($options)
         });
 
         $form = $client->request('GET', '/login')->selectButton('login')->form();
+        $form['user_login[username]'] = 'johannes';
+        $form['user_login[password]'] = 'test';
         $form['user_login[_token]'] = '';
         $client->submit($form);