Extend Wendelin tutorial notebook script tests

See merge request nexedi/wendelin!162

bt5/erp5_wendelin_tutorial_ui_test/PathTemplateItem/test_page_module/test_07_wendelin_HowTo_Create_Notebook_with_Graphs.html

@@ -648,7 +648,32 @@ plot();
         <td>//div[@id="plot_div"]</td>
         <td></td>
       </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="plot_div"]//*[text()='Nov 1']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="plot_div"]//*[text()='2020']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="plot_div"]//*[text()='Dec 27']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="plot_div"]//*[text()='0']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="plot_div"]//*[text()='1000']</td>
+        <td></td>
+      </tr>
     </tbody>
   </table>
 </test>
-</section>
\ No newline at end of file
+</section>

bt5/erp5_wendelin_tutorial_ui_test/PathTemplateItem/test_page_module/test_08_wendelin_HowTo_Create_Basic_Prediction_with_scikit_learn.html

@@ -2451,7 +2451,37 @@ function getPredictionData(start_date, stop_date){
         <td>//div[@id="prediction_plot_div"]</td>
         <td></td>
       </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="prediction_plot_div"]//*[text()='Nov 1']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="prediction_plot_div"]//*[text()='2020']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="prediction_plot_div"]//*[text()='Jan 3']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="prediction_plot_div"]//*[text()='2021']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="prediction_plot_div"]//*[text()='920']</td>
+        <td></td>
+      </tr>
+      <tr>
+        <td>waitForElementPresent</td>
+        <td>//div[@id="prediction_plot_div"]//*[text()='980']</td>
+        <td></td>
+      </tr>
     </tbody>
   </table>
 </test>
-</section>
\ No newline at end of file
+</section>