Fix correct backend assignment

qadence/pasqal_cloud_connection.py

@@ -56,7 +56,7 @@ def get_spec_from_model(
         A `WorkloadSpec` instance based on the quantum model passed to this function.
     """
     circuit = model._circuit.original
-    backend = model.backend
+    backend = model._backend_name
     return WorkloadSpec(circuit, backend, result_types, parameter_values, observable)
 
 

tests/test_pasqal_cloud_connection.py

@@ -6,7 +6,7 @@
 import pytest
 from torch import tensor
 
-from qadence import BackendName, I, QuantumCircuit
+from qadence import BackendName, I, QuantumCircuit, QuantumModel
 from qadence.pasqal_cloud_connection import (
     ResultType,
     WorkloadNotDoneError,
@@ -15,6 +15,7 @@
     _parameter_values_to_json,
     check_status,
     get_result,
+    get_spec_from_model,
     upload_workload,
     workload_spec_to_json,
 )
@@ -74,6 +75,14 @@ def test_workload_spec_to_json_no_optionals() -> None:
     assert "c_values" not in result.config.keys()
 
 
+def test_get_spec_from_model(
+    BasicQuantumModel: QuantumModel, BasicQuantumCircuit: QuantumCircuit
+) -> None:
+    workload = get_spec_from_model(BasicQuantumModel, [ResultType.EXPECTATION])
+    assert workload.circuit == BasicQuantumCircuit
+    assert workload.backend == BackendName.PYQTORCH
+
+
 def test_upload_workload(mocker: Any, BasicQuantumCircuit: QuantumCircuit) -> None:
     expected_workload_id = "my-workload"
     mock_connection_return = mocker.Mock()