fix tests

Author: xabbuh

Tests/Constraints/FileValidatorTest.php

@@ -412,8 +412,7 @@ public function testDisallowEmpty()
      */
     public function testUploadedFileError($error, $message, array $params = array(), $maxSize = null)
     {
-        touch('/tmp/file');
-        $file = new UploadedFile('/tmp/file', 'originalName', 'mime', $error);
+        $file = new UploadedFile(tempnam(sys_get_temp_dir(), 'file-validator-test-'), 'originalName', 'mime', $error);
 
         $constraint = new File(array(
             $message => 'myMessage',

composer.json

@@ -21,7 +21,7 @@
         "symfony/translation": "~3.4|~4.0"
     },
     "require-dev": {
-        "symfony/http-foundation": "~3.4|~4.0",
+        "symfony/http-foundation": "~4.1",
         "symfony/http-kernel": "~3.4|~4.0",
         "symfony/var-dumper": "~3.4|~4.0",
         "symfony/intl": "~3.4|~4.0",