diff --git a/addons/at_accounting/tests/test_bank_rec_widget_common.py b/addons/at_accounting/tests/test_bank_rec_widget_common.py
new file mode 100644
index 0000000..b961a5c
--- /dev/null
+++ b/addons/at_accounting/tests/test_bank_rec_widget_common.py
@@ -0,0 +1,68 @@
+# -*- coding: utf-8 -*-
+from odoo import Command
+from odoo.addons.account.tests.common import AccountTestInvoicingCommon
+
+
+class TestBankRecWidgetCommon(AccountTestInvoicingCommon):
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.other_currency = cls.setup_other_currency('EUR')
+        cls.other_currency_2 = cls.setup_other_currency('CAD', rounding=0.001, rates=[('2016-01-01', 6.0), ('2017-01-01', 4.0)])
+        cls.other_currency_3 = cls.setup_other_currency('XAF', rounding=0.001, rates=[('2016-01-01', 12.0), ('2017-01-01', 8.0)])
+
+    @classmethod
+    def _create_invoice_line(cls, move_type, **kwargs):
+        ''' Create an invoice on the fly.'''
+        kwargs.setdefault('partner_id', cls.partner_a.id)
+        kwargs.setdefault('invoice_date', '2017-01-01')
+        kwargs.setdefault('invoice_line_ids', [])
+        for one2many_values in kwargs['invoice_line_ids']:
+            one2many_values.setdefault('name', 'xxxx')
+            one2many_values.setdefault('quantity', 1)
+            one2many_values.setdefault('tax_ids', [])
+
+        invoice = cls.env['account.move'].create({
+            'move_type': move_type,
+            **kwargs,
+            'invoice_line_ids': [Command.create(x) for x in kwargs['invoice_line_ids']],
+        })
+        invoice.action_post()
+        return invoice.line_ids\
+            .filtered(lambda l: l.account_id.account_type in ('asset_receivable', 'liability_payable'))
+
+    @classmethod
+    def _create_st_line(cls, amount, date='2019-01-01', payment_ref='turlututu', **kwargs):
+        st_line = cls.env['account.bank.statement.line'].create({
+            'amount': amount,
+            'date': date,
+            'payment_ref': payment_ref,
+            'journal_id': kwargs.get('journal_id', cls.company_data['default_journal_bank'].id),
+            **kwargs,
+        })
+        # The automatic reconcile cron checks the create_date when considering st_lines to run on.
+        # create_date is a protected field so this is the only way to set it correctly
+        cls.env.cr.execute("UPDATE account_bank_statement_line SET create_date = %s WHERE id=%s",
+                           (st_line.date, st_line.id))
+        return st_line
+
+    @classmethod
+    def _create_reconcile_model(cls, **kwargs):
+        return cls.env['account.reconcile.model'].create({
+            'name': "test",
+            'rule_type': 'invoice_matching',
+            'allow_payment_tolerance': True,
+            'payment_tolerance_type': 'percentage',
+            'payment_tolerance_param': 0.0,
+            **kwargs,
+            'line_ids': [
+                Command.create({
+                    'account_id': cls.company_data['default_account_revenue'].id,
+                    'amount_type': 'percentage',
+                    'label': f"test {i}",
+                    **line_vals,
+                })
+                for i, line_vals in enumerate(kwargs.get('line_ids', []))
+            ],
+        })