Increase time for convertion due to change to cloudoo (slow but more stable...

Increase time for convertion due to change to cloudoo (slow but more stable oood) and parallel test execution.

product/ERP5OOo/tests/testDms.py

@@ -2663,9 +2663,11 @@ class TestDocumentPerformance(TestDocumentMixin):
     ooo_document.convert(format='png')
     after = time.time()
     req_time = (after - before)
-    # we should have image converted in less than 20s
-    self.assertTrue(req_time < 30.0, 
-      "Conversion took %s seconds and it is not less them 30.0 seconds" % \
+    # we should have image converted in less than Xs
+    # the 100s value is estimated one, it's equal to time for cloudood conversion (around 52s) +
+    # time for gs conversion. As normally test are executed in parallel some tollerance is needed.
+    self.assertTrue(req_time < 100.0, 
+      "Conversion took %s seconds and it is not less them 100.0 seconds" % \
         req_time)
 
 def test_suite():