diff --git a/core/modules/user/src/UserDataQueryInterface.php b/core/modules/user/src/UserDataQueryInterface.php
index 0f96d35..17f6daf 100644
--- a/core/modules/user/src/UserDataQueryInterface.php
+++ b/core/modules/user/src/UserDataQueryInterface.php
@@ -2,10 +2,15 @@
 
 namespace Drupal\user;
 
+/**
+ * Objects that implement this interface can query user data.
+ *
+ * @see \Drupal\user\UserDataInterface
+ */
 interface UserDataQueryInterface {
 
   /**
-   * Set the module value.
+   * Sets the module value.
    *
    * @param string $module
    *   The name of the module the data is associated with.
@@ -15,7 +20,7 @@
   public function module($module);
 
   /**
-   * Set the user account ID the data is associated with.
+   * Sets the user account ID the data is associated with.
    *
    * @param $uid
    *   The user account ID the data is associated with.
@@ -25,7 +30,7 @@ public function module($module);
   public function uid($uid);
 
   /**
-   * Set the name of the data key.
+   * Sets the name of the data key.
    *
    * @param string $name
    *   The name of the data key.
@@ -35,7 +40,7 @@ public function uid($uid);
   public function name($name);
 
   /**
-   * Set the value stored.
+   * Sets the value stored.
    *
    * @param string $value
    *   The value stored.
@@ -45,7 +50,7 @@ public function name($name);
   public function value($value);
 
   /**
-   * Run the query.
+   * Runs the query.
    *
    * @return \Traversable
    *   A list of result objects. Each object has module, uid, name and value
diff --git a/core/modules/user/tests/src/Kernel/UserDataQueryTest.php b/core/modules/user/tests/src/Kernel/UserDataQueryTest.php
index f560992..0abfc4c 100644
--- a/core/modules/user/tests/src/Kernel/UserDataQueryTest.php
+++ b/core/modules/user/tests/src/Kernel/UserDataQueryTest.php
@@ -5,7 +5,7 @@
 use Drupal\KernelTests\KernelTestBase;
 
 /**
- * @coversDefaultClass \Drupal\user\UserData
+ * @coversDefaultClass \Drupal\user\UserDataQuery
  *
  * @group user
  */
@@ -25,6 +25,12 @@ public function setUp() {
   }
 
   /**
+   * @covers ::module
+   * @covers ::uid
+   * @covers ::name
+   * @covers ::value
+   * @covers ::execute
+   *
    * @dataProvider userDataQueryProvider
    */
   public function testUserDataQuery($contents, $module, $uid, $name, $value, $expected) {