diff --git a/src/IndexInterface.php b/src/IndexInterface.php
index 54dec64..78f9d3b 100644
--- a/src/IndexInterface.php
+++ b/src/IndexInterface.php
@@ -276,8 +276,21 @@ interface IndexInterface extends ConfigEntityInterface {
    */
   public function getProcessorsByStage($stage, $only_enabled = TRUE);
 
+  /**
+   * Sets processor settings.
+   *
+   * @param array $processors
+   *   An array of processors and it's settings.
+   * @return $this
+   */
   public function setProcessorSettings(array $processors);
 
+  /**
+   * Gets processor settings.
+   *
+   * @return array
+   *   An array of processors and it's settings.
+   */
   public function getProcessorSettings();
 
   /**
diff --git a/src/Tests/HooksTest.php b/src/Tests/HooksTest.php
index a22760e..09d79ca 100644
--- a/src/Tests/HooksTest.php
+++ b/src/Tests/HooksTest.php
@@ -35,7 +35,7 @@ class HooksTest extends WebTestBase {
   /**
    * Tests various operations via the Search API's admin UI.
    */
-  public function x__testHooks() {
+  public function testHooks() {
     // Create some nodes.
     $this->drupalCreateNode(array('type' => 'page', 'title' => 'node - 1'));
     $this->drupalCreateNode(array('type' => 'page', 'title' => 'node - 2'));