namespacing: \Shaarli\FileUtils

Signed-off-by: VirtualTam <virtualtam@flibidi.net>

tests/FileUtilsTest.php

@@ -1,15 +1,15 @@
 <?php
 
-use Shaarli\Exceptions\IOException;
+namespace Shaarli;
 
-require_once 'application/FileUtils.php';
+use Exception;
 
 /**
  * Class FileUtilsTest
  *
  * Test file utility class.
  */
-class FileUtilsTest extends PHPUnit_Framework_TestCase
+class FileUtilsTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string Test file path.

tests/HistoryTest.php

@@ -4,7 +4,6 @@ namespace Shaarli;
 
 use DateTime;
 use Exception;
-use FileUtils;
 
 class HistoryTest extends \PHPUnit\Framework\TestCase
 {

tests/utils/ReferenceHistory.php

@@ -1,5 +1,6 @@
 <?php
 
+use Shaarli\FileUtils;
 use Shaarli\History;
 
 /**