diff --git a/test/update-test-data.php b/test/update-test-data.php
new file mode 100755
index 0000000..3af983f
--- /dev/null
+++ b/test/update-test-data.php
@@ -0,0 +1,40 @@
+<?
+/* 
+update the test data:
+
+then a bzr diff is the regression test
+
+*/
+$_GET['test']=1;
+include('../bibtexbrowser.php');
+
+$testbibs = array (
+  'bibacid-iso8859.bib',
+  'all.bib',
+  'metrics.bib',
+  'strings.bib;entries.bib'
+);
+
+foreach ($testbibs as $k) {
+  $db = new BibDataBase();
+  foreach(explode(MULTIPLE_BIB_SEPARATOR,$k) as $bibfile) {
+    $db->load($bibfile);
+  }
+
+  // sorting the entries
+  ksort($db->bibdb);
+
+  // sorting the fields
+  foreach($db->bibdb as $bib) {
+    ksort($bib->fields);
+  }
+  
+  $result = '';
+  foreach($db->bibdb as $bib) {
+    $result .= var_export($bib->fields, true)."\n";
+  }
+  //echo $result;
+  file_put_contents($k.'.txt',$result);
+}
+
+?>
\ No newline at end of file