diff --git a/tests/tests_scans/test_mono_bragg_scans.py b/tests/tests_scans/test_mono_bragg_scans.py
index 2a522b3..9a116b1 100644
--- a/tests/tests_scans/test_mono_bragg_scans.py
+++ b/tests/tests_scans/test_mono_bragg_scans.py
@@ -102,6 +102,12 @@ def test_xas_simple_scan(scan_assembler, ScanStubStatusMock):
                 "kwargs": {},
             },
         ),
+        DeviceInstructionMessage(
+            metadata={"readout_priority": "monitored", "RID": "my_test_request_id"},
+            device=["bpm4i", "eiger", "mo1_bragg", "samx"],
+            action="pre_scan",
+            parameter={},
+        ),
         DeviceInstructionMessage(
             metadata={"readout_priority": "monitored", "RID": "my_test_request_id"},
             device="mo1_bragg",
@@ -207,6 +213,12 @@ def test_xas_simple_scan_with_xrd(scan_assembler, ScanStubStatusMock):
                 "kwargs": {},
             },
         ),
+        DeviceInstructionMessage(
+            metadata={"readout_priority": "monitored", "RID": "my_test_request_id"},
+            device=["bpm4i", "eiger", "mo1_bragg", "samx"],
+            action="pre_scan",
+            parameter={},
+        ),
         DeviceInstructionMessage(
             metadata={"readout_priority": "monitored", "RID": "my_test_request_id"},
             device="mo1_bragg",
@@ -306,6 +318,12 @@ def test_xas_advanced_scan(scan_assembler, ScanStubStatusMock):
                 "kwargs": {},
             },
         ),
+        DeviceInstructionMessage(
+            metadata={"readout_priority": "monitored", "RID": "my_test_request_id"},
+            device=["bpm4i", "eiger", "mo1_bragg", "samx"],
+            action="pre_scan",
+            parameter={},
+        ),
         DeviceInstructionMessage(
             metadata={"readout_priority": "monitored", "RID": "my_test_request_id"},
             device="mo1_bragg",
@@ -413,6 +431,12 @@ def test_xas_advanced_scan_with_xrd(scan_assembler, ScanStubStatusMock):
                 "kwargs": {},
             },
         ),
+        DeviceInstructionMessage(
+            metadata={"readout_priority": "monitored", "RID": "my_test_request_id"},
+            device=["bpm4i", "eiger", "mo1_bragg", "samx"],
+            action="pre_scan",
+            parameter={},
+        ),
         DeviceInstructionMessage(
             metadata={"readout_priority": "monitored", "RID": "my_test_request_id"},
             device="mo1_bragg",