[IMP] product_code_mandatory: Add review improvements

Author: rov-adhoc

product_code_mandatory/models/product.py

@@ -11,5 +11,5 @@ def _get_default_code(self):
         return self.env["ir.sequence"].next_by_code("product.default.code")
 
     default_code = fields.Char(
-        "Internal Reference", index=True, default=_get_default_code
+        "Internal Reference", index=True, default=lambda self: self._get_default_code()
     )

product_code_mandatory/tests/test_product_code.py

@@ -1,9 +1,9 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
 
-from odoo.tests.common import TransactionCase
+from odoo.tests.common import BaseCommon
 
 
-class TestProductCode(TransactionCase):
+class TestProductCode(BaseCommon):
     @classmethod
     def setUpClass(cls):
         super().setUpClass()