diff --git a/maintenance_service_http_monitoring/tests/__init__.py b/maintenance_service_http_monitoring/tests/__init__.py
new file mode 100644
index 0000000..ab5c71a
--- /dev/null
+++ b/maintenance_service_http_monitoring/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_http_monitoring
diff --git a/maintenance_service_http_monitoring/tests/test_http_monitoring.py b/maintenance_service_http_monitoring/tests/test_http_monitoring.py
new file mode 100644
index 0000000..0a9098f
--- /dev/null
+++ b/maintenance_service_http_monitoring/tests/test_http_monitoring.py
@@ -0,0 +1,220 @@
+from datetime import timedelta
+from unittest.mock import MagicMock, patch
+
+from odoo import fields
+from odoo.tests.common import TransactionCase
+
+SERVICE_INSTANCE_REQUESTS = (
+    "odoo.addons.maintenance_service_http_monitoring.models.service_instance.requests"
+)
+EQUIPMENT_HTTP_REQUESTS = (
+    "odoo.addons.maintenance_service_http_monitoring"
+    ".models.maintenance_equipment.http_requests"
+)
+
+
+def _mock_response(status_code):
+    response = MagicMock()
+    response.status_code = status_code
+    return response
+
+
+class TestHttpMonitoring(TransactionCase):
+    def setUp(self):
+        super().setUp()
+        team = self.env["maintenance.team"].search([], limit=1)
+        self.equipment = self.env["maintenance.equipment"].create(
+            {
+                "name": "Test Server",
+                "maintenance_team_id": team.id if team else False,
+            }
+        )
+        self.service = self.env["service"].create({"name": "Test Service"})
+        self.service_instance = self.env["service.instance"].create(
+            {
+                "equipment_id": self.equipment.id,
+                "service_id": self.service.id,
+                "service_url": "https://example.com",
+            }
+        )
+
+    # ------------------------------------------------------------------
+    # Test 1 — HTTP 200 → service marked OK
+    # ------------------------------------------------------------------
+    def test_http_200_sets_status_ok(self):
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.return_value = _mock_response(200)
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        self.assertTrue(self.service_instance.http_status_ok)
+        self.assertEqual(self.service_instance.last_http_status_code, 200)
+        self.assertIsNotNone(self.service_instance.last_http_check_date)
+
+    # ------------------------------------------------------------------
+    # Test 2 — HTTP 500 → service KO + maintenance.request created
+    # ------------------------------------------------------------------
+    def test_http_500_creates_maintenance_request(self):
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.return_value = _mock_response(500)
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        self.assertFalse(self.service_instance.http_status_ok)
+        self.assertEqual(self.service_instance.last_http_status_code, 500)
+
+        request = self.equipment.http_maintenance_request
+        self.assertTrue(request)
+        self.assertEqual(request.name, f"[HTTP KO] {self.equipment.name}")
+        self.assertEqual(request.priority, "2")
+        self.assertEqual(request.maintenance_type, "corrective")
+
+    # ------------------------------------------------------------------
+    # Test 3 — Network error → KO with code -1
+    # ------------------------------------------------------------------
+    def test_network_error_sets_status_ko_and_minus_one(self):
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.side_effect = Exception("connection refused")
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        self.assertFalse(self.service_instance.http_status_ok)
+        self.assertEqual(self.service_instance.last_http_status_code, -1)
+
+    # ------------------------------------------------------------------
+    # Test 4 — Two consecutive failures → no duplicate maintenance.request
+    # ------------------------------------------------------------------
+    def test_no_duplicate_request_on_repeated_failure(self):
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.return_value = _mock_response(500)
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        request_1 = self.equipment.http_maintenance_request
+        self.assertTrue(request_1)
+
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.return_value = _mock_response(500)
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        self.assertEqual(self.equipment.http_maintenance_request, request_1)
+        self.assertEqual(
+            self.env["maintenance.request"].search_count(
+                [("equipment_id", "=", self.equipment.id)]
+            ),
+            1,
+        )
+
+    # ------------------------------------------------------------------
+    # Test 5 — Equipment in maintenance mode → cron skips it
+    # ------------------------------------------------------------------
+    def test_maintenance_mode_skips_http_check(self):
+        self.equipment.write({"maintenance_mode": True})
+
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.return_value = _mock_response(500)
+            mock_requests.exceptions.RequestException = Exception
+            self.env["service.instance"].cron_check_http_services()
+
+        mock_requests.get.assert_not_called()
+        # last_http_check_date must remain unset (never checked)
+        self.assertFalse(self.service_instance.last_http_check_date)
+
+    # ------------------------------------------------------------------
+    # Test 6 — Expired maintenance mode → cron deactivates it
+    # ------------------------------------------------------------------
+    def test_maintenance_mode_auto_expiry(self):
+        past = fields.Datetime.now() - timedelta(hours=1)
+        self.equipment.write(
+            {
+                "maintenance_mode": True,
+                "maintenance_mode_start": past - timedelta(hours=4),
+                "maintenance_mode_end": past,
+            }
+        )
+        self.assertTrue(self.equipment.maintenance_mode)
+
+        self.env["maintenance.equipment"].cron_deactivate_expired_maintenance_mode()
+
+        self.assertFalse(self.equipment.maintenance_mode)
+        self.assertFalse(self.equipment.maintenance_mode_start)
+        self.assertFalse(self.equipment.maintenance_mode_end)
+
+    # ------------------------------------------------------------------
+    # Test 7 — Service without URL → ignored by cron
+    # ------------------------------------------------------------------
+    def test_service_without_url_is_ignored(self):
+        self.service_instance.write({"service_url": False})
+
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.return_value = _mock_response(200)
+            mock_requests.exceptions.RequestException = Exception
+            self.env["service.instance"].cron_check_http_services()
+
+        mock_requests.get.assert_not_called()
+        self.assertFalse(self.service_instance.last_http_check_date)
+
+    # ------------------------------------------------------------------
+    # Test 8 — HTTP 404 (non-exception) → KO with correct code
+    # ------------------------------------------------------------------
+    def test_http_non_200_non_exception(self):
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.return_value = _mock_response(404)
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        self.assertFalse(self.service_instance.http_status_ok)
+        self.assertEqual(self.service_instance.last_http_status_code, 404)
+
+    # ------------------------------------------------------------------
+    # Test 9 — Webhook called when a new maintenance.request is created
+    # ------------------------------------------------------------------
+    def test_webhook_called_on_new_request(self):
+        self.env["ir.config_parameter"].sudo().set_param(
+            "maintenance_service_http_monitoring.webhook_url",
+            "https://webhook.example.com/hook",
+        )
+        with (
+            patch(SERVICE_INSTANCE_REQUESTS) as mock_requests,
+            patch(EQUIPMENT_HTTP_REQUESTS) as mock_http,
+        ):
+            mock_requests.get.return_value = _mock_response(500)
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        mock_http.post.assert_called_once()
+        call_kwargs = mock_http.post.call_args
+        payload = call_kwargs.kwargs.get("json") or call_kwargs[1].get("json")
+        self.assertEqual(payload["equipment"], self.equipment.name)
+
+    # ------------------------------------------------------------------
+    # Test 10 — Webhook skipped when no URL configured
+    # ------------------------------------------------------------------
+    def test_webhook_skipped_when_no_url(self):
+        self.env["ir.config_parameter"].sudo().set_param(
+            "maintenance_service_http_monitoring.webhook_url", ""
+        )
+        with (
+            patch(SERVICE_INSTANCE_REQUESTS) as mock_requests,
+            patch(EQUIPMENT_HTTP_REQUESTS) as mock_http,
+        ):
+            mock_requests.get.return_value = _mock_response(500)
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        mock_http.post.assert_not_called()
+
+    # ------------------------------------------------------------------
+    # Test 11 — Service without equipment → check_http_status skips it
+    # ------------------------------------------------------------------
+    def test_service_without_equipment_is_ignored(self):
+        self.service_instance.write({"equipment_id": False})
+
+        with patch(SERVICE_INSTANCE_REQUESTS) as mock_requests:
+            mock_requests.get.return_value = _mock_response(200)
+            mock_requests.exceptions.RequestException = Exception
+            self.service_instance.check_http_status()
+
+        mock_requests.get.assert_not_called()
+        self.assertFalse(self.service_instance.last_http_check_date)