diff --git a/l10n_br_account_nfe/tests/test_nfce_contingency.py b/l10n_br_account_nfe/tests/test_nfce_contingency.py
index 954eb7db3683..6333f5710dc6 100644
--- a/l10n_br_account_nfe/tests/test_nfce_contingency.py
+++ b/l10n_br_account_nfe/tests/test_nfce_contingency.py
@@ -5,65 +5,61 @@
 
 
 class TestAccountNFCeContingency(TransactionCase):
-    @classmethod
-    def setUpClass(cls):
-        super().setUpClass()
-        # this hook is required to test l10n_br_account_nfe alone:
-        cls.env["spec.mixin.nfe"]._register_hook()
-        cls.document_id = cls.env.ref("l10n_br_nfe.demo_nfce_same_state")
-        cls.prepare_account_move_nfce()
+    def setUp(self):
+        super().setUp()
+        self.document_id = self.env.ref("l10n_br_nfe.demo_nfce_same_state")
+        self.prepare_account_move_nfce()
 
-    @classmethod
-    def prepare_account_move_nfce(cls):
-        receivable_account_id = cls.env["account.account"].create(
+    def prepare_account_move_nfce(self):
+        receivable_account_id = self.env["account.account"].create(
             {
                 "name": "TEST ACCOUNT",
-                "code": "01.1.1.2.2",
+                "code": "1.1.1.2.2",
                 "reconcile": 1,
-                "company_id": cls.env.ref("base.main_company").id,
-                "user_type_id": cls.env.ref("account.data_account_type_receivable").id,
+                "company_id": self.env.ref("base.main_company").id,
+                "user_type_id": self.env.ref("account.data_account_type_receivable").id,
             }
         )
-        payable_account_id = cls.env["account.account"].create(
+        payable_account_id = self.env["account.account"].create(
             {
                 "name": "TEST ACCOUNT 2",
-                "code": "01.1.1.2.3",
+                "code": "1.1.1.2.3",
                 "reconcile": 1,
-                "company_id": cls.env.ref("base.main_company").id,
-                "user_type_id": cls.env.ref("account.data_account_type_payable").id,
+                "company_id": self.env.ref("base.main_company").id,
+                "user_type_id": self.env.ref("account.data_account_type_payable").id,
             }
         )
-        payment_method = cls.env.ref("account.account_payment_method_manual_in").id
-        journal_id = cls.env["account.journal"].create(
+        payment_method = self.env.ref("account.account_payment_method_manual_in").id
+        journal_id = self.env["account.journal"].create(
             {
                 "name": "JOURNAL TEST",
                 "code": "TEST",
                 "type": "bank",
-                "company_id": cls.env.ref("base.main_company").id,
+                "company_id": self.env.ref("base.main_company").id,
             }
         )
-        payment_mode = cls.env["account.payment.mode"].create(
+        payment_mode = self.env["account.payment.mode"].create(
             {
                 "name": "PAYMENT MODE TEST",
-                "company_id": cls.env.ref("base.main_company").id,
+                "company_id": self.env.ref("base.main_company").id,
                 "payment_method_id": payment_method,
                 "fiscal_payment_mode": "15",
                 "bank_account_link": "fixed",
                 "fixed_journal_id": journal_id.id,
             }
         )
-        cls.document_move_id = cls.env["account.move"].create(
+        self.document_move_id = self.env["account.move"].create(
             {
                 "name": "MOVE TEST",
                 "payment_mode_id": payment_mode.id,
-                "company_id": cls.env.ref("base.main_company").id,
+                "company_id": self.env.ref("base.main_company").id,
                 "line_ids": [
                     (0, 0, {"account_id": receivable_account_id.id, "credit": 10}),
                     (0, 0, {"account_id": payable_account_id.id, "debit": 10}),
                 ],
             }
         )
-        cls.document_move_id.fiscal_document_id = cls.document_id.id
+        self.document_move_id.fiscal_document_id = self.document_id.id
 
     def test_nfce_contingencia(self):
         self.document_id._update_nfce_for_offline_contingency()