diff --git a/tests/test_pilatus_csaxs.py b/tests/test_pilatus_csaxs.py
index 6b159b7..74f5322 100644
--- a/tests/test_pilatus_csaxs.py
+++ b/tests/test_pilatus_csaxs.py
@@ -7,6 +7,7 @@ from ophyd import Staged
 from bec_lib.core import BECMessage, MessageEndpoints
 from bec_lib.core.devicemanager import DeviceContainer
 from bec_lib.core.tests.utils import ProducerMock
+import requests
 
 
 class MockSignal(Signal):
@@ -299,6 +300,64 @@ def test_publish_file_location(mock_det, scaninfo):
     assert mock_det._producer.set_and_publish.call_args_list == expected_calls
 
 
+@pytest.mark.parametrize(
+    "requests_state, expected_exception, url",
+    [
+        (
+            True,
+            False,
+            "http://x12sa-pd-2:8080/stream/pilatus_2",
+        ),
+        (
+            False,
+            False,
+            "http://x12sa-pd-2:8080/stream/pilatus_2",
+        ),
+    ],
+)
+def test_close_file_writer(mock_det, requests_state, expected_exception, url):
+    with mock.patch.object(mock_det, "_send_requests_delete") as mock_send_requests_delete:
+        instance = mock_send_requests_delete.return_value
+        instance.ok = requests_state
+        if expected_exception:
+            mock_det._close_file_writer()
+            mock_send_requests_delete.assert_called_once_with(url=url)
+            instance.raise_for_status.called_once()
+        else:
+            mock_det._close_file_writer()
+            mock_send_requests_delete.assert_called_once_with(url=url)
+
+
+@pytest.mark.parametrize(
+    "requests_state, expected_exception, url",
+    [
+        (
+            True,
+            False,
+            "http://xbl-daq-34:8091/pilatus_2/stop",
+        ),
+        (
+            False,
+            True,
+            "http://xbl-daq-34:8091/pilatus_2/stop",
+        ),
+    ],
+)
+def test_stop_file_writer(mock_det, requests_state, expected_exception, url):
+    with mock.patch.object(mock_det, "_send_requests_put") as mock_send_requests_put:
+        instance = mock_send_requests_put.return_value
+        instance.ok = requests_state
+        instance.raise_for_status.side_effect = Exception
+        if expected_exception:
+            with pytest.raises(Exception):
+                mock_det._stop_file_writer()
+                mock_send_requests_put.assert_called_once_with(url=url)
+                instance.raise_for_status.called_once()
+        else:
+            mock_det._stop_file_writer()
+            mock_send_requests_put.assert_called_once_with(url=url)
+
+
 # @pytest.mark.parametrize(
 #     "scaninfo, daq_status, expected_exception",
 #     [