diff --git a/src/AkamaiAuthentication.php b/src/AkamaiAuthentication.php
index f2c1723..2ee57c4 100644
--- a/src/AkamaiAuthentication.php
+++ b/src/AkamaiAuthentication.php
@@ -5,7 +5,6 @@
  * Contains \Drupal\akamai\AkamaiAuthentication.
  */
 
-
 namespace Drupal\akamai;
 
 use Drupal\Core\Config\Config;
diff --git a/src/AkamaiClient.php b/src/AkamaiClient.php
index b462a2f..2f46d17 100644
--- a/src/AkamaiClient.php
+++ b/src/AkamaiClient.php
@@ -139,7 +139,7 @@ class AkamaiClient extends Client {
    */
   public function isAuthorized() {
     try {
-      $response = $this->_getQueue();
+      $response = $this->doGetQueue();
     }
     catch (\GuzzleHttp\Exception\ClientException $e) {
       // @todo better handling
@@ -195,15 +195,17 @@ class AkamaiClient extends Client {
       );
       // Note that the response has useful data that we need to record.
       // Example response body:
+      // @code
       // {
-      //  "estimatedSeconds": 420,
-      //  "progressUri": "/ccu/v2/purges/57799d8b-10e4-11e4-9088-62ece60caaf0",
-      //  "purgeId": "57799d8b-10e4-11e4-9088-62ece60caaf0",
-      //  "supportId": "17PY1405953363409286-284546144",
-      //  "httpStatus": 201,
-      //  "detail": "Request accepted.",
-      //  "pingAfterSeconds": 420
-      //  }.
+      //   "estimatedSeconds": 420,
+      //   "progressUri": "/ccu/v2/purges/57799d8b-10e4-11e4-9088-62ece60caaf0",
+      //   "purgeId": "57799d8b-10e4-11e4-9088-62ece60caaf0",
+      //   "supportId": "17PY1405953363409286-284546144",
+      //   "httpStatus": 201,
+      //   "detail": "Request accepted.",
+      //   "pingAfterSeconds": 420
+      // }
+      // @endcode
       return $response;
     }
     catch (ClientException $e) {
@@ -260,7 +262,7 @@ class AkamaiClient extends Client {
    * @link https://developer.akamai.com/api/purge/ccu/reference.html
    */
   public function getQueue($queue_name = 'default') {
-    return Json::decode($this->_getQueue($queue_name)->getBody());
+    return Json::decode($this->doGetQueue($queue_name)->getBody());
   }
 
   /**
@@ -273,8 +275,9 @@ class AkamaiClient extends Client {
    *   The queue name to check. Defaults to 'default'.
    *
    * @return \Psr\Http\Message\ResponseInterface
+   *   The HTTP response.
    */
-  private function _getQueue($queue_name = 'default') {
+  private function doGetQueue($queue_name = 'default') {
     return $this->get("/ccu/v2/queues/{$queue_name}");
   }
 
@@ -310,10 +313,22 @@ class AkamaiClient extends Client {
     }
   }
 
+  /**
+   * Sets the queue name to clear.
+   *
+   * @param string $queue
+   *   The queue name to clear.
+   */
   public function setQueue($queue) {
     $this->queue = $queue;
   }
 
+  /**
+   * Set the action to perform on the queue.
+   *
+   * @param string $action
+   *   The action to perform on the queue.
+   */
   public function setAction($action) {
     $valid_actions = array('remove', 'invalidate');
     if (in_array($action, $valid_actions)) {
@@ -324,6 +339,12 @@ class AkamaiClient extends Client {
     }
   }
 
+  /**
+   * Sets the type of purge.
+   *
+   * @param string $type
+   *   The type of purge, either 'arl' or 'cpcode'.
+   */
   public function setType($type) {
     $valid_types = array('cpcode', 'arl');
     if (in_array($type, $valid_types)) {
@@ -334,6 +355,12 @@ class AkamaiClient extends Client {
     }
   }
 
+  /**
+   * Sets the domain to clear.
+   *
+   * @param string $domain
+   *   The domain to clear, either 'production' or 'staging'.
+   */
   public function setDomain($domain) {
     $valid_domains = array('staging', 'production');
     if (in_array($domain, $valid_domains)) {
@@ -344,6 +371,15 @@ class AkamaiClient extends Client {
     }
   }
 
+  /**
+   * Formats a JSON error response into a string.
+   *
+   * @param \GuzzleHttp\Exception\ClientException $e
+   *   The ClientException containing the JSON error response.
+   *
+   * @return string
+   *   The formatted error message as a string.
+   */
   protected function formatExceptionMessage(ClientException $e) {
     // Get the full response to avoid truncation.
     // @see https://laracasts.com/discuss/channels/general-discussion/guzzle-error-message-gets-truncated
diff --git a/src/Form/CacheControlForm.php b/src/Form/CacheControlForm.php
index 4309f87..6244cca 100644
--- a/src/Form/CacheControlForm.php
+++ b/src/Form/CacheControlForm.php
@@ -30,11 +30,11 @@ class CacheControlForm extends FormBase {
   /**
    * Constructs a new CacheControlForm.
    *
-   * @param \Drupal\akamai\AkamaiClient
+   * @param \Drupal\akamai\AkamaiClient $akamai_client
    *   The akamai client.
    */
-  public function __construct(AkamaiClient $akamaiClient) {
-    $this->akamaiClient = $akamaiClient;
+  public function __construct(AkamaiClient $akamai_client) {
+    $this->akamaiClient = $akamai_client;
   }
 
   /**
@@ -149,7 +149,12 @@ class CacheControlForm extends FormBase {
     }
     if (!empty($invalid_paths)) {
       $paths = implode(",", $invalid_paths);
-      $message = $paths . \Drupal::translation()->formatPlural(count($invalid_paths), ' path is invalid and does not exist', ' paths are invalid and do not exist') . $this->t(' on the site. Please provide valid URLs for purging.');
+      $message = $this->formatPlural(
+        count($invalid_paths),
+        '@paths path is invalid and does not exist on the site. Please provide valid URLs for purging.',
+        '@paths paths are invalid and do not exist on the site. Please provide valid URLs for purging.',
+        ['@paths' => $paths]
+      );
       $form_state->setErrorByName('paths', $message);
     }
   }
@@ -167,7 +172,9 @@ class CacheControlForm extends FormBase {
     $this->akamaiClient->setDomain($form_state->getValue('domain_override'));
     $response = $this->akamaiClient->purgeUrls($urls_to_clear);
     if ($response) {
-      drupal_set_message($this->t('Requested :action of the following URLs: :urls', [':action' => $action, ':urls' => implode(', ', $urls_to_clear)]));
+      drupal_set_message($this->t('Requested :action of the following URLs: :urls',
+        [':action' => $action, ':urls' => implode(', ', $urls_to_clear)])
+      );
     }
     else {
       drupal_set_message($this->t('There was an error clearing the cache. Check logs for further detail.'), 'error');
@@ -178,10 +185,7 @@ class CacheControlForm extends FormBase {
    * Shows a message to the user if not authenticated to the Akamai API.
    */
   protected function showAuthenticationWarning() {
-    $url = Url::fromRoute('akamai.settings');
-    $link_text = $this->t('Update settings now');
-    $message = 'You are not authenticated to Akamai CCU v2. Until you authenticate, you will not be able to clear URLs from the Akamai cache. @link';
-    $message = $this->t($message, ['@link' => $this->l($link_text, $url)]);
+    $message = $this->t('You are not authenticated to Akamai CCU v2. Until you authenticate, you will not be able to clear URLs from the Akamai cache. <a href=:url">Update settings now</a>.', [':url' => Url::fromRoute('akamai.settings')]);
     drupal_set_message($message, 'warning');
   }
 
diff --git a/src/Form/ConfigForm.php b/src/Form/ConfigForm.php
index a59c30b..e04812d 100644
--- a/src/Form/ConfigForm.php
+++ b/src/Form/ConfigForm.php
@@ -37,21 +37,8 @@ class ConfigForm extends ConfigFormBase {
   public function buildForm(array $form, FormStateInterface $form_state) {
     $config = $this->config('akamai.settings');
 
-    $form = array();
-
-    // This doesn't do anything at present. Commenting out.
     // @todo decide whether we want a global killswitch here.
-//    $form['disable_fieldset'] = array(
-//      '#type' => 'fieldset',
-//      '#title' => $this->t('Disable Akamai Cache Clearing'),
-//      '#description' => $this->t('Set this field to disable cache clearing during imports, migrations, or other batch processes.'),
-//    );
-//
-//    $form['disable_fieldset']['disabled'] = array(
-//      '#type' => 'checkbox',
-//      '#title' => $this->t('Disable cache clearing'),
-//      '#default_value' => $config->get('disable'),
-//    );
+    $form = array();
 
     // Link to instructions on how to get Akamai credentials from Luna.
     $luna_url = 'https://developer.akamai.com/introduction/Prov_Creds.html';
@@ -166,7 +153,6 @@ class ConfigForm extends ConfigFormBase {
     $values = $form_state->getValues();
 
     $this->config('akamai.settings')
-      //->set('disabled', $values['disabled'])
       ->set('rest_api_url', $values['rest_api_url'])
       ->set('client_token', $values['client_token'])
       ->set('client_secret', $values['client_secret'])
diff --git a/src/Tests/AkamaiHomepageTest.php b/src/Tests/AkamaiHomepageTest.php
index 33cde04..28c106f 100644
--- a/src/Tests/AkamaiHomepageTest.php
+++ b/src/Tests/AkamaiHomepageTest.php
@@ -67,8 +67,6 @@ class AkamaiHomepageTest extends WebTestBase {
     \Drupal::service('theme_handler')->install(['bartik']);
     $theme_settings = $this->config('system.theme');
     foreach (['bartik'] as $theme) {
-      $this->drupalGet('admin/structure/block/list/' . $theme);
-      $this->assertTitle(t('Block layout') . ' | Drupal');
       // Configure and save the block.
       $this->drupalPlaceBlock('akamai_cache_clear_block', array(
         'region' => 'content',
