diff --git a/tests/test_application.py b/tests/test_application.py
index 2dd078d3..45aaa24e 100644
--- a/tests/test_application.py
+++ b/tests/test_application.py
@@ -123,6 +123,9 @@ def _create_app_for_startup(
     ezsp_mock.wait_for_stack_status.return_value.__enter__ = AsyncMock(
         return_value=t.EmberStatus.NETWORK_UP
     )
+    ezsp_mock.customFrame = AsyncMock(
+        return_value=[t.EmberStatus.LIBRARY_NOT_PRESENT, b""]
+    )
     ezsp_mock.xncp_get_supported_firmware_features = AsyncMock(
         return_value=FirmwareFeatures.NONE
     )
@@ -1827,6 +1830,7 @@ def zigpy_backup() -> zigpy.backups.NetworkBackup:
             metadata={
                 "ezsp": {
                     "stack_version": 8,
+                    "flow_control": None,
                     "can_burn_userdata_custom_eui64": True,
                     "can_rewrite_custom_eui64": True,
                 }
diff --git a/tests/test_ezsp.py b/tests/test_ezsp.py
index cf602bc3..148833c4 100644
--- a/tests/test_ezsp.py
+++ b/tests/test_ezsp.py
@@ -40,6 +40,9 @@ async def mock_command(command, *args, **kwargs):
 
     api._mock_commands = {}
     api._mock_commands["version"] = AsyncMock(return_value=[version, 0, 0])
+    api._mock_commands["customFrame"] = AsyncMock(
+        return_value=[t.EmberStatus.LIBRARY_NOT_PRESENT, b""]
+    )
     api._command = AsyncMock(side_effect=mock_command)
 
     return api
@@ -588,8 +591,8 @@ async def test_write_custom_eui64_rcp(ezsp_f):
 
 @patch.object(EZSP, "version", new_callable=AsyncMock)
 @patch.object(EZSP, "reset", new_callable=AsyncMock)
-@patch.object(ezsp.EZSP, "get_xncp_features", new_callable=AsyncMock)
-async def test_ezsp_init_zigbeed(reset_mock, xncp_mock, version_mock):
+@patch.object(EZSP, "get_xncp_features", new_callable=AsyncMock)
+async def test_ezsp_init_zigbeed(xncp_mock, reset_mock, version_mock):
     """Test initialize method with a received startup reset frame."""
     ezsp = make_ezsp(
         config={
@@ -610,7 +613,7 @@ async def test_ezsp_init_zigbeed(reset_mock, xncp_mock, version_mock):
 
 @patch.object(EZSP, "version", new_callable=AsyncMock)
 @patch.object(EZSP, "reset", new_callable=AsyncMock)
-@patch.object(ezsp.EZSP, "get_xncp_features", new_callable=AsyncMock)
+@patch.object(EZSP, "get_xncp_features", new_callable=AsyncMock)
 @patch("bellows.ezsp.NETWORK_COORDINATOR_STARTUP_RESET_WAIT", 0.01)
 async def test_ezsp_init_zigbeed_timeout(reset_mock, xncp_mock, version_mock):
     """Test initialize method with a received startup reset frame."""