Coding style changes for the unit tests

See merge request nexedi/wendelin!158

bt5/erp5_wendelin_drone/PathTemplateItem/notebook_module/drone_data_graph.xml

@@ -560,7 +560,7 @@ prepareData()\n
                   </item>
                   <item>
                       <key> <string>serial</string> </key>
-                      <value> <string>1012.46657.35863.5717</string> </value>
+                      <value> <string>1013.42930.28344.22254</string> </value>
                   </item>
                   <item>
                       <key> <string>state</string> </key>
@@ -580,7 +580,7 @@ prepareData()\n
                           </tuple>
                           <state>
                             <tuple>
-                              <float>1700840040.49</float>
+                              <float>1704461947.15</float>
                               <string>UTC</string>
                             </tuple>
                           </state>

bt5/erp5_wendelin_drone/TestTemplateItem/portal_components/test.erp5.testWendelinDrones.xml

@@ -35,25 +35,7 @@
         <item>
             <key> <string>text_content_warning_message</string> </key>
             <value>
-              <tuple>
-                <string>W: 45,  0: Cannot decode using encoding "ascii", unexpected byte at position 50 (invalid-encoded-data)</string>
-                <string>W: 46,  0: Cannot decode using encoding "ascii", unexpected byte at position 61 (invalid-encoded-data)</string>
-                <string>W: 47,  0: Cannot decode using encoding "ascii", unexpected byte at position 55 (invalid-encoded-data)</string>
-                <string>W: 48,  0: Cannot decode using encoding "ascii", unexpected byte at position 55 (invalid-encoded-data)</string>
-                <string>W: 49,  0: Cannot decode using encoding "ascii", unexpected byte at position 55 (invalid-encoded-data)</string>
-                <string>W: 51,  0: Cannot decode using encoding "ascii", unexpected byte at position 55 (invalid-encoded-data)</string>
-                <string>W: 54,  0: Cannot decode using encoding "ascii", unexpected byte at position 53 (invalid-encoded-data)</string>
-                <string>W: 55,  0: Cannot decode using encoding "ascii", unexpected byte at position 55 (invalid-encoded-data)</string>
-                <string>W: 52,  4: Unused variable \'portal\' (unused-variable)</string>
-                <string>W: 84,  4: Unused variable \'timestamp\' (unused-variable)</string>
-                <string>W:110,  4: Unused variable \'document_to_delete_list\' (unused-variable)</string>
-                <string>W:257,  8: No exception type(s) specified (bare-except)</string>
-                <string>W:375,  4: Unused variable \'test_sim_dataframe\' (unused-variable)</string>
-                <string>W:372,  8: Unused variable \'data_array_line_names_sim_flight_list\' (unused-variable)</string>
-                <string>W:396,  8: Unused variable \'data_array_line_names_sim_flight_score_list\' (unused-variable)</string>
-                <string>W:443,  8: Unused variable \'data_array_line_names_sim_flight_score_list\' (unused-variable)</string>
-                <string>W: 31,  0: Unused numpy imported as np (unused-import)</string>
-              </tuple>
+              <tuple/>
             </value>
         </item>
         <item>