Issue #2187897 by jessebeach: The testControllerResolutionAjax() test was commented out pending resolution of #1959574; reenable it.

core/modules/system/lib/Drupal/system/Tests/Routing/RouterTest.php

@@ -182,12 +182,7 @@ class RouterTest extends WebTestBase {
 
   /**
    * Checks that an ajax request gets rendered as an Ajax response, by mime.
-   *
-   * @todo This test will not work until the Ajax enhancer is corrected. However,
-   *   that is dependent on fixes to the Ajax system. Re-enable this test once
-   *   http://drupal.org/node/1938980 is fixed.
    */
-  /*
   public function testControllerResolutionAjax() {
     // This will fail with a JSON parse error if the request is not routed to
     // The correct controller.
@@ -197,6 +192,4 @@ class RouterTest extends WebTestBase {
 
     $this->assertRaw('abcde', 'Correct body was found.');
   }
-  */
-
 }