[FIX] mrp: tests with Form on 'mrp.production'

Add the group 'mrp.group_mrp_routings' on the main user to make field
'workorder_ids' visible in the form view of 'mrp.production'.  Many
tests use that view, and require the subviews of that field to be
present in order to create records.

closes odoo/odoo#116779

Related: odoo/enterprise#38858
Related: odoo/documentation#3968
Signed-off-by: Raphael Collet <rco@odoo.com>

addons/mrp/tests/common.py

@@ -93,9 +93,11 @@ class TestMrpCommon(common2.TestStockCommon):
             notification_type='inbox',
             groups='mrp.group_mrp_manager, stock.group_stock_user, mrp.group_mrp_byproducts, uom.group_uom',
         )
-        # Required for `product_uom_id` to be visible in the view
-        # This class is used by a lot of tests which sets `product_uom_id` on `mrp.production`
-        cls.env.user.groups_id += cls.env.ref('uom.group_uom')
+        # Both groups below are required to make fields `product_uom_id` and
+        # `workorder_ids` to be visible in the view of `mrp.production`. The
+        # field `product_uom_id` must be set by many tests, and subviews of
+        # `workorder_ids` must be present in many tests to create records.
+        cls.env.user.groups_id += cls.env.ref('uom.group_uom') + cls.env.ref('mrp.group_mrp_routings')
 
         cls.workcenter_1 = cls.env['mrp.workcenter'].create({
             'name': 'Nuclear Workcenter',

addons/mrp_account/tests/test_analytic_account.py

@@ -9,7 +9,13 @@ class TestMrpAnalyticAccount(TransactionCase):
     @classmethod
     def setUpClass(cls):
         super().setUpClass()
-        cls.env.user.write({'groups_id': [(4, cls.env.ref('analytic.group_analytic_accounting').id),]})
+        # The group 'mrp.group_mrp_routings' is required to make the field
+        # 'workorder_ids' visible in the view of 'mrp.production'. The subviews
+        #  of `workorder_ids` must be present in many tests to create records.
+        cls.env.user.groups_id += (
+            cls.env.ref('analytic.group_analytic_accounting')
+            + cls.env.ref('mrp.group_mrp_routings')
+        )
 
         cls.analytic_plan = cls.env['account.analytic.plan'].create({
             'name': 'Plan',