diff --git a/core/lib/Drupal/Core/Session/AccountProxyInterface.php b/core/lib/Drupal/Core/Session/AccountProxyInterface.php
index b06b347..3c3f072 100644
--- a/core/lib/Drupal/Core/Session/AccountProxyInterface.php
+++ b/core/lib/Drupal/Core/Session/AccountProxyInterface.php
@@ -34,7 +34,7 @@ public function setAccount(AccountInterface $account);
   public function getAccount();
 
   /**
-   * Set the current wrapped account to impersonate another account.
+   * Sets the currently wrapped account to impersonate another account.
    *
    * Always remember to call AccountProxyInterface::revertAccount() after this
    * call!
@@ -45,7 +45,7 @@ public function getAccount();
   public function impersonateAccount(AccountInterface $account);
 
   /**
-   * Revert from impersonating another account.
+   * Reverts from impersonating another account.
    *
    * @return \Drupal\Core\Session\AccountInterface
    *   $this.
diff --git a/core/modules/system/lib/Drupal/system/Tests/Session/UserImpersonatingUserTest.php b/core/modules/system/lib/Drupal/system/Tests/Session/UserImpersonatingUserTest.php
index 2e08b23..7b715fa 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Session/UserImpersonatingUserTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Session/UserImpersonatingUserTest.php
@@ -24,10 +24,6 @@ public static function getInfo() {
     );
   }
 
-  function setUp() {
-    parent::setUp();
-  }
-
   function testUserImpersonateUser() {
     $session_manager = $this->container->get('session_manager');
     $user = $this->container->get('current_user');
@@ -39,7 +35,8 @@ function testUserImpersonateUser() {
     // user 1. If logged in, switch to the anonymous user instead.
     if ($user->isAnonymous()) {
       $user->impersonateAccount(new UserSession(array('uid' => 1)));
-    } else {
+    }
+    else {
       $user->impersonateAccount(new AnonymousUserSession());
     }