ooo: fix tiff and a disable broken odp -> odg

cloudooo/handler/ooo/mimemapper.py

@@ -97,6 +97,7 @@ class MimeMapper:
       'Word 2007–365':'ms.docx',
       'Microsoft Word 6.0':'6.doc',
       'Microsoft Word 95':'95.doc',
+      'TIFF - Tagged Image File Format': 'tiff',
       }
     uno_path = kw.get("uno_path", environ.get('uno_path'))
     office_binary_path = kw.get("office_binary_path",
@@ -122,6 +123,9 @@ class MimeMapper:
        'writer_web_png_Export',
        'writer_web_webp_Export',
 
+      # cause an odp -> odg conversion to appear as available, but returning an odp
+       'impress8_draw',
+
       # 'writer_jpg_Export', # Seems not working from cloudooo in Libre Office 4.3.3.2
       # 'writer_png_Export', # Seems not working from cloudooo in Libre Office 4.3.3.2
       # 'draw_eps_Export', #  Seems not working from cloudooo in Libre Office 5.0.0.5

cloudooo/handler/ooo/tests/testOooAllFormatERP5Compatibility.py

@@ -72,4 +72,9 @@ class TestAllFormatsERP5Compatibility(TestCase):
         data_output = data_output['data']
         file_type = self._getFileType(data_output)
         self.assertNotIn(": empty", file_type)
+        if source_format != extension:
+          # when no filter exist for destination format, the document is not converted
+          # but silently returned in source format, the assertion below should detect
+          # this.
+          self.assertNotEqual(source_mimetype, file_type)