Also try _get_device_default_type with invalid kind argument

Author: oleksandr-pavlyk

dpctl/tests/elementwise/test_type_utils.py

@@ -113,6 +113,8 @@ def _denier_fn(dt):
 
 
 def test_type_utils_get_device_default_type():
+    with pytest.raises(RuntimeError):
+        tu._get_device_default_dtype("-", MockDevice(True, True))
     try:
         dev = dpctl.SyclDevice()
     except dpctl.SyclDeviceCreationError: