diff --git a/web_notify_channel_message/__manifest__.py b/web_notify_channel_message/__manifest__.py
index 0c0a79d91..050c2d74e 100644
--- a/web_notify_channel_message/__manifest__.py
+++ b/web_notify_channel_message/__manifest__.py
@@ -6,7 +6,7 @@
     "name": "Web Notify Channel Message",
     "summary": """
         Send an instant notification to channel users when a new message is posted""",
-    "version": "15.0.1.0.0",
+    "version": "16.0.1.0.0",
     "license": "AGPL-3",
     "author": "ForgeFlow, Odoo Community Association (OCA)",
     "development_status": "Alpha",
diff --git a/web_notify_channel_message/tests/__init__.py b/web_notify_channel_message/tests/__init__.py
new file mode 100644
index 000000000..8c59b263e
--- /dev/null
+++ b/web_notify_channel_message/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_notify_channel_message
diff --git a/web_notify_channel_message/tests/test_notify_channel_message.py b/web_notify_channel_message/tests/test_notify_channel_message.py
new file mode 100644
index 000000000..edaec369c
--- /dev/null
+++ b/web_notify_channel_message/tests/test_notify_channel_message.py
@@ -0,0 +1,51 @@
+# Copyright 2023 ForgeFlow S.L. (https://www.forgeflow.com)
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl).
+
+from odoo import api
+from odoo.tests import common
+
+
+class TestWebNotifyChannelMessage(common.TransactionCase):
+    @classmethod
+    def setUpClass(cls):
+        super(TestWebNotifyChannelMessage, cls).setUpClass()
+        cls.env.user = cls.env.ref("base.user_admin")
+        cls.env = api.Environment(cls.cr, cls.env.user.id, {})
+        cls.env.user.tz = False  # Make sure there's no timezone in user
+        cls.user_internal = cls.env["res.users"].create(
+            {
+                "name": "Test Internal User",
+                "login": "internal_user",
+                "password": "internal_user",
+                "email": "mark.brown23@example.com",
+            }
+        )
+        cls.channel = cls.env["mail.channel"].create(
+            {
+                "name": "Test channel",
+                "channel_partner_ids": [
+                    (4, cls.env.user.partner_id.id),
+                    (4, cls.user_internal.partner_id.id),
+                ],
+            }
+        )
+
+    def test_01_post_message(self):
+        initial_message = (
+            self.env["mail.channel"]
+            .search([("name", "=", "Test channel")], limit=1)
+            .message_ids
+        )
+        self.assertEqual(len(initial_message), 0)
+        self.channel.message_post(
+            author_id=self.env.user.partner_id.id,
+            body="Hello",
+            message_type="notification",
+            subtype_xmlid="mail.mt_comment",
+        )
+        message = (
+            self.env["mail.channel"]
+            .search([("name", "=", "Test channel")], limit=1)
+            .message_ids[0]
+        )
+        self.assertEqual(len(message), 1)