diff --git a/tests/tests_devices/test_phoenix_trigger.py b/tests/tests_devices/test_phoenix_trigger.py
new file mode 100644
index 0000000..891ea0c
--- /dev/null
+++ b/tests/tests_devices/test_phoenix_trigger.py
@@ -0,0 +1,97 @@
+import threading
+import time
+from unittest import mock
+
+import numpy as np
+import ophyd
+import pytest
+from bec_server.device_server.tests.utils import DMMock
+from ophyd_devices.interfaces.base_classes.psi_detector_base import DeviceTimeoutError
+from ophyd_devices.tests.utils import MockPV, patch_dual_pvs
+
+from phoenix_bec.devices.phoenix_trigger import SAMPLING, PhoenixTrigger
+
+
+@pytest.fixture(scope="function")
+def mock_trigger():
+    name = "phoenix_trigger"
+    prefix = "X07MB-OP2:"
+    dm = DMMock()
+    with mock.patch.object(dm, "connector"):
+        with (
+            mock.patch(
+                "ophyd_devices.interfaces.base_classes.psi_detector_base.FileWriter"
+            ) as filemixin,
+            mock.patch(
+                "ophyd_devices.interfaces.base_classes.psi_detector_base.PSIDetectorBase._update_service_config"
+            ) as mock_service_config,
+        ):
+            with mock.patch.object(ophyd, "cl") as mock_cl:
+                mock_cl.get_pv = MockPV
+                mock_cl.thread_class = threading.Thread
+                with mock.patch.object(PhoenixTrigger, "_init"):
+                    det = PhoenixTrigger(name=name, prefix=prefix, device_manager=dm)
+                    patch_dual_pvs(det)
+                    det.TIMEOUT_FOR_SIGNALS = 0.1
+                    yield det
+
+
+def test_phoenix_trigger_init(mock_trigger):
+    """Test PhoenixTrigger init"""
+    assert mock_trigger.name == "phoenix_trigger"
+    assert mock_trigger.prefix == "X07MB-OP2:"
+
+
+def test_phoenix_trigger_stage(mock_trigger):
+    """Test PhoenixTrigger on_stage"""
+    with mock.patch.object(mock_trigger.scaninfo, "load_scan_metadata") as mock_load_scan_metadata:
+        mock_trigger.scaninfo.scan_type = "step"
+        mock_trigger.scaninfo.exp_time = exp_time = 1
+        mock_trigger.stage()
+        assert mock_load_scan_metadata.call_count == 1
+        assert mock_trigger.start_csmpl.get() == 0
+        assert mock_trigger.total_cycles.get() == np.ceil(exp_time * 5)
+        assert mock_trigger.smpl.get() == 1
+
+
+def test_phoenix_trigger_unstage(mock_trigger):
+    """Test PhoenixTrigger on_unstage"""
+    with mock.patch.object(mock_trigger.custom_prepare, "on_stop") as mock_on_stop:
+        mock_trigger.unstage()
+        assert mock_on_stop.call_count == 1
+
+
+def test_phoenix_trigger_stop(mock_trigger):
+    """Test PhoenixTrigger on_stop"""
+    with mock.patch.object(mock_trigger.smpl, "put") as mock_smpl_put:
+        mock_trigger.smpl_done._read_pv.mock_data = SAMPLING.RUNNING
+        mock_trigger.stop()
+        assert mock_trigger.stopped is True
+        assert mock_trigger.total_cycles.get() == 5
+        assert mock_trigger.start_csmpl.get() == 1
+        assert mock_smpl_put.call_args_list == [mock.call(1), mock.call(1)]
+
+
+def test_phoenix_trigger_trigger(mock_trigger):
+    """Test PhoenixTrigger on_trigger
+
+    First test that the trigger timeouts due to readback from smpl_done not being done.
+    Afterwards, check that status  object resolved correctly if smpl_done is done.
+    """
+    exp_time = 0.05
+    mock_trigger.device_manager.add_device("falcon_nohdf5")
+    falcon_state = mock_trigger.device_manager.devices.falcon_nohdf5.state = mock.MagicMock()
+    falcon_state.get = mock.MagicMock(return_value=1)
+    mock_trigger.scaninfo.scan_type = "step"
+    mock_trigger.scaninfo.exp_time = exp_time
+
+    with mock.patch.object(
+        mock_trigger.custom_prepare, "wait_with_status", return_value=mock.MagicMock()
+    ) as mock_wait_with_status:
+        status = mock_trigger.trigger()
+        assert mock_wait_with_status.call_count == 1
+        assert mock_wait_with_status.call_args[1]["signal_conditions"] == [
+            (mock_trigger.smpl_done.get, SAMPLING.DONE)
+        ]
+        assert mock_wait_with_status.call_args[1]["timeout"] == 5 * exp_time
+        assert mock_wait_with_status.call_args[1]["check_stopped"] is True