[IMP] account_ebics - Add unit tests

Add 97 tests:

- account_ebics: order numbers, camt and CFONB split per account,
  journal lookup, duplicate statements, download and upload wizards,
  key initialisation (INI/HIA/HPB), passphrase change, admin orders.
- account_ebics_batch: scheduled import, import log, reprocess.
- account_ebics_payment_order / account_ebics_batch_payment: upload of
  the payment file and link to the payment document.
- account_ebics_statement_import_test (new, test-only, not to install
  in production): installs the OCA camt and CFONB parsers in CI and
  runs the end-to-end statement import.

The bank is simulated by patching ebics.xfer._setup_client, or the
fintech client classes for the key initialisation; keys, certificates
and the INI letter are real, created in a temporary directory.

account_ebics_batch_payment/tests/__init__.py

@@ -0,0 +1 @@
+from . import test_batch_payment_upload

account_ebics_batch_payment/tests/test_batch_payment_upload.py

@@ -0,0 +1,77 @@
+# Copyright 2026 Noviat.
+# License LGPL-3 or later (https://www.gnu.org/licenses/lgpl).
+
+import base64
+from unittest.mock import patch
+
+from odoo.exceptions import UserError
+from odoo.tests import tagged
+
+from odoo.addons.account_ebics.tests.common import EbicsTestCommon, FakeEbicsClient
+
+
+@tagged("post_install", "-at_install")
+class TestBatchPaymentUpload(EbicsTestCommon):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+        cls.journal = cls._create_bank_journal("TBP", "FR7630004000031234567890143")
+        cls.ff_cct = cls.env.ref("account_ebics.ebics_ff_CCT")
+        cls.method = cls.env.ref("account.account_payment_method_manual_out")
+
+    def _batch(self, state="sent"):
+        batch = self.env["account.batch.payment"].create(
+            {
+                "journal_id": self.journal.id,
+                "batch_type": "outbound",
+                "payment_method_id": self.method.id,
+                "export_file": base64.b64encode(b"<Document>pain.001</Document>"),
+                "export_filename": "batch.xml",
+            }
+        )
+        # Without payments the batch stays in draft: set the state directly.
+        batch.state = state
+        return batch
+
+    def _generating_files(self):
+        batch_class = type(self.env["account.batch.payment"])
+        return patch.object(
+            batch_class, "_get_methods_generating_files", return_value=["manual"]
+        )
+
+    def test_hide_ebics_upload(self):
+        with self._generating_files():
+            self.assertFalse(self._batch().hide_ebics_upload)
+            self.assertTrue(self._batch(state="draft").hide_ebics_upload)
+            batch = self._batch()
+            batch.ebics_file_id = self.env["ebics.file"].create(
+                {"name": "batch.xml", "date": "2026-10-13", "pain_state": "uploaded"}
+            )
+            self.assertTrue(batch.hide_ebics_upload)
+        # no file generation for this payment method
+        self.assertTrue(self._batch().hide_ebics_upload)
+
+    def test_upload_requires_ebics_config(self):
+        self.ebics_config.journal_ids = False
+        with self.assertRaises(UserError):
+            self._batch().ebics_upload()
+
+    def test_upload_format_from_payment_method(self):
+        self.method.ebics_file_format_id = self.ff_cct
+        action = self._batch().ebics_upload()
+        wizard = self.env["ebics.xfer"].browse(action["res_id"])
+        self.assertEqual(wizard.format_id, self.ff_cct)
+        self.assertEqual(wizard.upload_fname, "batch.xml")
+
+    def test_upload(self):
+        self.method.ebics_file_format_id = self.ff_cct
+        batch = self._batch()
+        action = batch.ebics_upload()
+        wizard = self.env["ebics.xfer"].browse(action["res_id"])
+        with self._fake_client(FakeEbicsClient(order_id="N088")) as client:
+            wizard.with_context(**action["context"]).ebics_upload()
+        self.assertEqual(client.uploads[0][1], b"<Document>pain.001</Document>")
+        self.assertEqual(batch.ebics_order_number, "N088")
+        self.assertEqual(batch.ebics_pain_state, "uploaded")
+        self.assertIn(f"Batch Payment: {batch.name}", batch.ebics_file_id.note)
+        self.assertTrue(any("N088" in msg.body for msg in batch.message_ids))