Rather than simply raise return empty list for list of possible export formats...

Rather than simply raise return empty list for list of possible export formats for empty documents. Add test to cover this use case.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@38695 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5OOo/Document/OOoDocument.py

@@ -175,7 +175,8 @@ class OOoDocument(OOoDocumentExtensibleTraversableMixin, BaseConvertableFileMixi
       to provide an extensive list of conversion formats.
     """
     if not self.hasBaseData():
-      raise NotConvertedError
+      # if we have no date we can not format it
+      return []
 
     def cached_getTargetFormatItemList(content_type):
       server_proxy = self._mkProxy()

product/ERP5OOo/tests/testDms.py

@@ -1927,6 +1927,21 @@ return 1
     image=self.portal.image_module.newContent(portal_type='Image',
                                                     content_type='image/png')
     self.assertTrue('txt' in image.getTargetFormatList())
+    
+    # test Not converted (i.e. empty) OOoDocument instances
+    presentation=self.portal.document_module.newContent(portal_type='Presentation')
+    self.assertSameSet([], presentation.getTargetFormatList())
+    
+    # test uploading some data
+    upload_file = makeFileUpload('Foo_001.odg')
+    presentation.edit(file=upload_file)
+    self.stepTic()
+    self.assertTrue('odg' in presentation.getTargetFormatList())
+    self.assertTrue('jpg' in presentation.getTargetFormatList())
+    self.assertTrue('png' in presentation.getTargetFormatList())
+
+    
+    
 
   def test_convertToImageOnTraversal(self):
     """