[FIX] account_statement_import_online: use unittest.mock and don't import tests at install

Installing this module failed because `mock` couldn't be found. Indeed there was a migration problem.

However, I was not testing the module; just installing. At install, tests shouldn't be imported.

This file was being imported because the dummy model was expected to exist in database for tests. Using odoo-test-helper for that now.

@moduon MT-295

account_statement_import_online/__init__.py

@@ -2,4 +2,3 @@
 
 from . import models
 from . import wizards
-from .tests import online_bank_statement_provider_dummy

account_statement_import_online/__manifest__.py

@@ -4,13 +4,14 @@
 
 {
     "name": "Online Bank Statements",
-    "version": "14.0.2.1.0",
+    "version": "14.0.2.1.1",
     "author": "CorporateHub, Odoo Community Association (OCA)",
     "maintainers": ["alexey-pelykh"],
     "website": "https://github.com/OCA/bank-statement-import",
     "license": "AGPL-3",
     "category": "Accounting",
     "summary": "Online bank statements update",
+    "external_dependencies": {"python": ["odoo_test_helper"]},
     "depends": [
         "account",
         "account_statement_import",

account_statement_import_online/tests/test_account_bank_statement_import_online.py

@@ -7,6 +7,7 @@ from unittest import mock
 from urllib.error import HTTPError
 
 from dateutil.relativedelta import relativedelta
+from odoo_test_helper import FakeModelLoader
 from psycopg2 import IntegrityError
 
 from odoo import fields
@@ -20,18 +21,27 @@ mock_obtain_statement_data = (
 )
 
 
-class TestAccountBankAccountStatementImportOnline(common.TransactionCase):
-    def setUp(self):
-        super().setUp()
+class TestAccountBankAccountStatementImportOnline(common.SavepointCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
 
-        self.now = fields.Datetime.now()
-        self.AccountJournal = self.env["account.journal"]
-        self.OnlineBankStatementProvider = self.env["online.bank.statement.provider"]
-        self.OnlineBankStatementPullWizard = self.env[
-            "online.bank.statement.pull.wizard"
-        ]
-        self.AccountBankStatement = self.env["account.bank.statement"]
-        self.AccountBankStatementLine = self.env["account.bank.statement.line"]
+        # Load fake model
+        cls.loader = FakeModelLoader(cls.env, cls.__module__)
+        cls.loader.backup_registry()
+        cls.addClassCleanup(cls.loader.restore_registry)
+        from .online_bank_statement_provider_dummy import (
+            OnlineBankStatementProviderDummy,
+        )
+
+        cls.loader.update_registry((OnlineBankStatementProviderDummy,))
+
+        cls.now = fields.Datetime.now()
+        cls.AccountJournal = cls.env["account.journal"]
+        cls.OnlineBankStatementProvider = cls.env["online.bank.statement.provider"]
+        cls.OnlineBankStatementPullWizard = cls.env["online.bank.statement.pull.wizard"]
+        cls.AccountBankStatement = cls.env["account.bank.statement"]
+        cls.AccountBankStatementLine = cls.env["account.bank.statement.line"]
 
     def test_provider_unlink_restricted(self):
         journal = self.AccountJournal.create(

account_statement_import_online/tests/test_account_journal.py

@@ -1,6 +1,6 @@
 # Copyright 2021 Therp BV (https://therp.nl).
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
-from mock import patch
+from unittest.mock import patch
 
 from odoo.tests import common