diff --git a/account_banking_mandate/tests/test_invoice_mandate.py b/account_banking_mandate/tests/test_invoice_mandate.py
index d7249f3b0..c37916587 100644
--- a/account_banking_mandate/tests/test_invoice_mandate.py
+++ b/account_banking_mandate/tests/test_invoice_mandate.py
@@ -8,6 +8,7 @@ from odoo.exceptions import UserError
 from odoo.tests.common import TransactionCase
 
 from odoo.addons.account.models.account_payment_method import AccountPaymentMethod
+from odoo.addons.base.tests.common import DISABLED_MAIL_CONTEXT
 
 
 class TestInvoiceMandate(TransactionCase):
@@ -203,6 +204,7 @@ class TestInvoiceMandate(TransactionCase):
     @classmethod
     def setUpClass(cls):
         super().setUpClass()
+        cls.env = cls.env(context=dict(cls.env.context, **DISABLED_MAIL_CONTEXT))
         cls.company = cls.env.ref("base.main_company")
 
         cls.partner = cls._create_res_partner("Peter with ACME Bank")
diff --git a/account_banking_mandate/tests/test_mandate.py b/account_banking_mandate/tests/test_mandate.py
index e6edcc432..fe4e7ec90 100644
--- a/account_banking_mandate/tests/test_mandate.py
+++ b/account_banking_mandate/tests/test_mandate.py
@@ -7,13 +7,16 @@ from odoo import fields
 from odoo.exceptions import UserError, ValidationError
 from odoo.tests.common import TransactionCase
 
+from odoo.addons.base.tests.common import DISABLED_MAIL_CONTEXT
+
 
 class TestMandate(TransactionCase):
     @classmethod
     def setUpClass(cls):
         super().setUpClass()
-        cls.company = cls.env.company
-        cls.company_2 = cls.env["res.company"].create({"name": "company 2"})
+        cls.env = cls.env(context=dict(cls.env.context, **DISABLED_MAIL_CONTEXT))
+        cls.company = cls.env.ref("base.main_company")
+        cls.company_2 = cls.env["res.company"].create({"name": "Company 2"})
         cls.company_2.partner_id.company_id = cls.company_2.id
         cls.bank_account = cls.env.ref("account_payment_mode.res_partner_12_iban")
         cls.bank_account.partner_id.company_id = cls.company.id
diff --git a/account_payment_order/tests/test_payment_mode.py b/account_payment_order/tests/test_payment_mode.py
index 787388813..14d182d53 100644
--- a/account_payment_order/tests/test_payment_mode.py
+++ b/account_payment_order/tests/test_payment_mode.py
@@ -18,8 +18,9 @@ class TestPaymentMode(TransactionCase):
             AccountPaymentMethod._get_payment_method_information
         )
 
-        def _get_payment_method_information(self):
-            res = Method_get_payment_method_information(self)
+        @classmethod
+        def _get_payment_method_information(cls):
+            res = Method_get_payment_method_information(cls)
             res["IN"] = {"mode": "multi", "domain": [("type", "=", "bank")]}
             res["IN2"] = {"mode": "multi", "domain": [("type", "=", "bank")]}
             res["electronic_out"] = {"mode": "multi", "domain": [("type", "=", "bank")]}