Improve comments

tests/FillPdfTestCase.test

 <?php
 
-/**
- * @file
- * Class FillPdfTestCase.
- */
-
 /**
  * Tests the PDF handling functions of the API (a.k.a. the whole API).
  */

tests/FillPdfTestHelper.test

 <?php
 
-/**
- * @file
- * Trait FillPdfTestHelper.
- */
-
 /**
  *
  */
@@ -18,7 +13,7 @@ trait FillPdfTestHelper {
   protected $privilegedUser;
 
   /**
-   *
+   * Creates a privileged user account.
    */
   protected function createPrivilegedUser() {
     // Meh. Caching.
@@ -34,7 +29,7 @@ trait FillPdfTestHelper {
   }
 
   /**
-   *
+   * Uploads a PDF test file.
    */
   protected function uploadTestPdf() {
     $this->drupalPost('admin/structure/fillpdf', array(
@@ -45,7 +40,7 @@ trait FillPdfTestHelper {
   }
 
   /**
-   *
+   * Configures FillPdf using the test backend.
    */
   protected function configureBackend() {
     variable_set('fillpdf_service', 'test');
@@ -53,7 +48,7 @@ trait FillPdfTestHelper {
   }
 
   /**
-   *
+   * Configures FillPdf using the local_service backend.
    */
   protected function configureLocalServiceBackend() {
     variable_set('fillpdf_service', 'local_service');