The error indicates a failed frontend tour test related to the project_task_activities_split feature in Odoo 18. This failure might be due to changes or misalignments introduced while inheriting the project.project model and adding the product_manager field. Here’s how you can address and resolve the issue:

Step-by-Step Troubleshooting and Fixes

1. Check Field Addition:
   • Verify that your field addition doesn’t inadvertently affect existing views or logic.
   • Specifically, ensure no existing views or JS interactions depend on the exact structure of the project.project model, as adding fields can sometimes disrupt rendering or testing.
   Example of a properly structured inheritance:

   pythonCopy codefrom odoo import models, fields
   
   class ProjectProject(models.Model):
       _inherit = 'project.project'
   
       product_manager = fields.Many2one(
           'hr.employee',
           string="Manager",
           help="Employee who manages the process for this project."
       )
   

   This code alone should not directly cause the test to fail unless it affects dependent code or views.
2. Update Related Views:
   • Ensure all views that render project.project are updated to accommodate the new field if necessary.
   • Check for the activity view referenced in the test:
     • Look for any <xpath> or updates related to project.project views.
     • Validate the o_activity_record class and .d-block behavior to ensure the field addition doesn’t interfere.
3. Analyze Test Dependencies:
   • Review the test_todo_ui.py test, especially the test_tour_project_task_activities_split method. This test is failing because the frontend element .o_activity_record .d-block:contains("New Sub-Task!") could not be located.
   • Check if:
     • The inheritance inadvertently removed or altered the o_activity_record view structure.
     • A JavaScript or QWeb template update is required to reintroduce the missing element.
4. Verify QWeb Templates:
   • Review QWeb templates used by project.project or related features.
   • Look for the element with o_activity_record and ensure it renders correctly after your changes.
5. Fix JS or Tour Test Logic:
   • If the test depends on JavaScript interactions, verify the tour code:
     • Locate the trigger for the .o_activity_record .d-block:contains("New Sub-Task!") element.
     • Ensure the element is rendered and accessible during the test.
   Example of updating or debugging the test:

   pythonCopy code# Check if the element exists at the expected stage of the test
   self.assertTrue(self.env['project.task'].search([('name', '=', 'New Sub-Task!')]), "Task 'New Sub-Task!' not found")
   

6. Debugging Strategy:
   • Enable developer mode and open the affected page in the browser.
   • Inspect the DOM for .o_activity_record and .d-block.
   • Confirm the presence of "New Sub-Task!" text during test execution.
7. Rebuild and Retest:
   • Restart your Odoo server and ensure your module is updated:

     bashCopy code./odoo-bin -d your_database_name -u your_module_name --stop-after-init
     

   • Re-run the tests:

     bashCopy code./odoo-bin --test-enable -d your_database_name --stop-after-init
     

8. If Problem Persists:
   • Check for dependencies on project_todo or similar modules.
   • Investigate other overridden models or fields that may be interacting with project.project.

Example Fix for the Test

If you modified templates, ensure all necessary elements (like o_activity_record) are included:

xmlCopy code<t t-extend="project.activity_view">
    <xpath expr="//div[@class='o_activity_record']" position="inside">
        <!-- Ensure New Sub-Task element exists for the test -->
        <div class="d-block">New Sub-Task!</div>
    </xpath>
</t>

Final Notes

• Always verify the product_manager field addition does not conflict with core logic or modules.
• Review any JS or Python logic dependent on the project.project model.
• If the issue is unresolved, share logs, and we can further assist!