[IMP] hr: Add a multi company report printing test

Purpose
=======

This commit tests some behaviors with multi company
mode after changes brought by f847a46.

Specification
=============

Check that a report printing for several records on
different companies:
- Works if the context is correctly set, i.e. both
  companies are in the allowed_company_ids
- Doesn't work if the context is not correctly set

addons/hr/tests/__init__.py

@@ -5,3 +5,4 @@ from . import test_hr_employee
 from . import test_channel
 from . import test_hr_flow
 from . import test_self_user_access
+from . import test_multi_company

addons/hr/tests/test_multi_company.py

@@ -0,0 +1,35 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo.tests import Form
+from odoo.addons.hr.tests.common import TestHrCommon
+from odoo.addons.base.models.qweb import QWebException
+
+
+class TestMultiCompany(TestHrCommon):
+
+    def setUp(self):
+        super().setUp()
+        self.company_1 = self.env['res.company'].create({'name': 'Opoo'})
+        self.company_2 = self.env['res.company'].create({'name': 'Otoo'})
+        self.employees = self.env['hr.employee'].create([
+            {'name': 'Bidule', 'company_id': self.company_1.id},
+            {'name': 'Machin', 'company_id': self.company_2.id},
+        ])
+        self.res_users_hr_officer.company_ids = [
+            (4, self.company_1.id),
+            (4, self.company_2.id),
+        ]
+
+    def test_multi_company_report(self):
+        content, content_type = self.env.ref('hr.hr_employee_print_badge').sudo(self.res_users_hr_officer).with_context(
+            allowed_company_ids=[self.company_1.id, self.company_2.id]
+        ).render_qweb_pdf(res_ids=self.employees.ids)
+        self.assertIn(b'Bidule', content)
+        self.assertIn(b'Machin', content)
+
+    def test_single_company_report(self):
+        with self.assertRaises(QWebException):  # CacheMiss followed by AccessError
+            content, content_type = self.env.ref('hr.hr_employee_print_badge').sudo(self.res_users_hr_officer).with_context(
+                allowed_company_ids=[self.company_1.id]
+            ).render_qweb_pdf(res_ids=self.employees.ids)