diff --git a/slurmweb/tests/apps/test_agent.py b/slurmweb/tests/apps/test_agent.py
new file mode 100644
index 00000000..00dbb681
--- /dev/null
+++ b/slurmweb/tests/apps/test_agent.py
@@ -0,0 +1,42 @@
+# Copyright (c) 2025 Rackslab
+#
+# This file is part of Slurm-web.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import sys
+from ..lib.agent import TestAgentBase
+
+
+class TestAgentApp(TestAgentBase):
+
+    def test_app_loaded(self):
+        # No error log must be emitted in this case. Note that assertNoLogs is available
+        # starting from Python 3.10. For versions below, absence of logs is not checked.
+        if sys.version_info < (3, 10):
+            self.setup_client()
+        else:
+            with self.assertNoLogs("slurmweb", level="ERROR"):
+                self.setup_client()
+
+    def test_app_racksdb_format_error(self):
+        with self.assertLogs("slurmweb", level="ERROR") as cm:
+            self.setup_client(racksdb_format_error=True)
+        self.assertEqual(
+            cm.output,
+            [
+                "ERROR:slurmweb.apps.agent:Unable to load RacksDB database: fake db "
+                "format error"
+            ],
+        )
+
+    def test_app_racksdb_schema_error(self):
+        with self.assertLogs("slurmweb", level="ERROR") as cm:
+            self.setup_client(racksdb_schema_error=True)
+        self.assertEqual(
+            cm.output,
+            [
+                "ERROR:slurmweb.apps.agent:Unable to load RacksDB schema: fake db "
+                "schema error"
+            ],
+        )
diff --git a/slurmweb/tests/lib/agent.py b/slurmweb/tests/lib/agent.py
index 0af21f68..8969387c 100644
--- a/slurmweb/tests/lib/agent.py
+++ b/slurmweb/tests/lib/agent.py
@@ -16,6 +16,7 @@
 from rfl.authentication.user import AuthenticatedUser
 from slurmweb.apps import SlurmwebConfSeed
 from slurmweb.apps.agent import SlurmwebAppAgent
+from racksdb.errors import RacksDBFormatError, RacksDBSchemaError
 
 from .utils import (
     mock_slurmrestd_responses,
@@ -50,7 +51,12 @@ def basic(self):
 
 class TestAgentBase(unittest.TestCase):
 
-    def setup_client(self, additional_conf=None):
+    def setup_client(
+        self,
+        additional_conf=None,
+        racksdb_format_error=False,
+        racksdb_schema_error=False,
+    ):
         # Generate JWT signing key
         key = tempfile.NamedTemporaryFile(mode="w+")
         key.write("hey")
@@ -81,7 +87,12 @@ def setup_client(self, additional_conf=None):
 
         # Start the app with mocked RacksDB web blueprint
         with mock.patch("slurmweb.apps.agent.RacksDBWebBlueprint") as m:
-            m.return_value = FakeRacksDBWebBlueprint()
+            if racksdb_format_error:
+                m.side_effect = RacksDBFormatError("fake db format error")
+            elif racksdb_schema_error:
+                m.side_effect = RacksDBSchemaError("fake db schema error")
+            else:
+                m.return_value = FakeRacksDBWebBlueprint()
             self.app = SlurmwebAppAgent(
                 SlurmwebConfSeed(
                     debug=False,
diff --git a/slurmweb/tests/views/test_agent_racksdb.py b/slurmweb/tests/views/test_agent_racksdb.py
index 149989d2..23eb002b 100644
--- a/slurmweb/tests/views/test_agent_racksdb.py
+++ b/slurmweb/tests/views/test_agent_racksdb.py
@@ -26,6 +26,26 @@ def test_request_racksdb(self):
         )
 
 
+class TestAgentRacksDBUnabledRequest(TestAgentBase):
+
+    def setUp(self):
+        self.setup_client(racksdb_format_error=True)
+
+    def test_request_racksdb(self):
+        # Check FakeRacksDBWebBlueprint is not registered when racksdb is unable to load
+        # database.
+        response = self.client.get("/racksdb/fake")
+        self.assertEqual(response.status_code, 404)
+        self.assertEqual(
+            response.json,
+            {
+                "code": 404,
+                "description": flask_404_description,
+                "name": "Not Found",
+            },
+        )
+
+
 class TestAgentRacksDBDisabledRequest(TestAgentBase):
 
     def setUp(self):