diff --git a/core/tests/Drupal/Tests/Core/DrupalTest.php b/core/tests/Drupal/Tests/Core/DrupalTest.php
index 689fd1c..450e2fb 100644
--- a/core/tests/Drupal/Tests/Core/DrupalTest.php
+++ b/core/tests/Drupal/Tests/Core/DrupalTest.php
@@ -204,7 +204,7 @@ public function testEntityQueryAggregate() {
   }
 
   /**
-   * Tests the flook() method.
+   * Tests the flood() method.
    */
   public function testFlood() {
     $this->setMockContainerService('flood');
@@ -314,8 +314,12 @@ public function testTransliteration() {
   }
 
   /**
-   * @param $service_name
+   * Sets up a mock expectation for the container get() method.
+   *
+   * @param string $service_name
+   *   The service name to expect for the get() method.
    * @param mixed $return
+   *   The value to return from the mocked container get() method.
    */
   protected function setMockContainerService($service_name, $return = NULL) {
     $expects = $this->container->expects($this->once())