Implement simulation object validation checks

klayout_package/python/kqcircuits/simulations/export/ansys/ansys_export.py

@@ -29,6 +29,7 @@
     get_post_process_command_lines,
     get_combined_parameters,
     export_simulation_json,
+    validate_simulation,
 )
 from kqcircuits.util.export_helper import write_commit_reference_file
 from kqcircuits.simulations.export.util import export_layers
@@ -177,6 +178,7 @@ def export_ansys(
     common_sol = None if all(isinstance(s, Sequence) for s in simulations) else get_ansys_solution(**solution_params)
     for sim_sol in simulations:
         simulation, solution = sim_sol if isinstance(sim_sol, Sequence) else (sim_sol, common_sol)
+        validate_simulation(simulation, solution)
         try:
             json_filenames.append(export_ansys_json(simulation, solution, path))
         except (IndexError, ValueError, Exception) as e:  # pylint: disable=broad-except

klayout_package/python/kqcircuits/simulations/export/elmer/elmer_export.py

@@ -32,6 +32,7 @@
     get_post_process_command_lines,
     get_combined_parameters,
     export_simulation_json,
+    validate_simulation,
 )
 from kqcircuits.simulations.export.util import export_layers
 from kqcircuits.util.export_helper import write_commit_reference_file
@@ -590,6 +591,7 @@ def export_elmer(
     Returns:
         Path to exported script file.
     """
+
     common_sol = None if all(isinstance(s, Sequence) for s in simulations) else get_elmer_solution(**solution_params)
 
     workflow = _update_elmer_workflow(simulations, common_sol, workflow)
@@ -605,7 +607,7 @@ def export_elmer(
 
     for sim_sol in simulations:
         simulation, solution = sim_sol if isinstance(sim_sol, Sequence) else (sim_sol, common_sol)
-
+        validate_simulation(simulation, solution)
         try:
             json_filenames.append(export_elmer_json(simulation, solution, path, workflow))
         except (IndexError, ValueError, Exception) as e:  # pylint: disable=broad-except

klayout_package/python/kqcircuits/simulations/export/simulation_export.py

@@ -25,6 +25,7 @@
 
 from kqcircuits.simulations.export.util import export_layers
 from kqcircuits.util.geometry_json_encoder import GeometryJsonEncoder
+from kqcircuits.simulations.export.simulation_validate import ValidateSim
 
 
 def get_combined_parameters(simulation, solution):
@@ -158,3 +159,18 @@ def cross_combine(simulations, solutions):
             solutions if isinstance(solutions, Sequence) else [solutions],
         )
     )
+
+
+def validate_simulation(simulation, solution):
+    """Analyses a Simulation object or list and raises an error if specific inconsistencies are found.
+
+    Args:
+        simulations: A Simulation object.
+        solutions: A Solution object.
+    Raises:
+        Errors when validation criteria are not met.
+    """
+    validate_sim = ValidateSim()
+    validate_sim.has_no_ports_when_required(simulation, solution)
+    validate_sim.has_edgeport_when_forbidden(simulation, solution)
+    validate_sim.flux_integration_layer_exists_if_needed(simulation, solution)

klayout_package/python/kqcircuits/simulations/export/simulation_validate.py

@@ -0,0 +1,119 @@
+# This code is part of KQCircuits
+# Copyright (C) 2024 IQM Finland Oy
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
+# License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with this program. If not, see
+# https://www.gnu.org/licenses/gpl-3.0.html.
+#
+# The software distribution should follow IQM trademark policy for open-source software
+# (meetiqm.com/iqm-open-source-trademark-policy). IQM welcomes contributions to the code.
+# Please see our contribution agreements for individuals (meetiqm.com/iqm-individual-contributor-license-agreement)
+# and organizations (meetiqm.com/iqm-organization-contributor-license-agreement).
+from kqcircuits.simulations.export.ansys.ansys_solution import (
+    AnsysEigenmodeSolution,
+    AnsysCurrentSolution,
+    AnsysVoltageSolution,
+    AnsysHfssSolution,
+)
+from kqcircuits.simulations.export.elmer.elmer_solution import ElmerVectorHelmholtzSolution, ElmerCapacitanceSolution
+
+
+class ValidateSim:
+    """Validation class that contains consistency checks."""
+
+    def has_no_ports_when_required(self, simulation, solution):
+        """Validation check: ensures that a simulation object has ports when the solution type requires it.
+        Args:
+            simulations: A Simulation object.
+            solutions: A Solution object.
+        Raises:
+            Errors when validation criteria are not met.
+        """
+        port_names = get_port_names(simulation)
+        sim_name = simulation.name
+        if not port_names and type(solution) in [
+            AnsysHfssSolution,
+            AnsysVoltageSolution,
+            AnsysCurrentSolution,
+            ElmerVectorHelmholtzSolution,
+            ElmerCapacitanceSolution,
+        ]:
+            raise ValidateSimError(
+                f"Simulation '{sim_name}' has no ports assigned. This is incompatible with {type(solution)}",
+                validation_type=self.has_no_ports_when_required.__name__,
+            )
+
+    def has_edgeport_when_forbidden(self, simulation, solution):
+        """Validation check: ensure that if at least one "EdgePort" is present, some solution types can't be chosen.
+        Args:
+            simulations: A Simulation object.
+            solutions: A Solution object.
+        Raises:
+            Errors when validation criteria are not met.
+        """
+        port_names = get_port_names(simulation)
+        sim_name = simulation.name
+        if "EdgePort" in port_names and type(solution) in [
+            AnsysEigenmodeSolution,
+            AnsysVoltageSolution,
+            AnsysCurrentSolution,
+        ]:
+            raise ValidateSimError(
+                f"Simulation '{sim_name}' has at least one 'EdgePort'. This is incompatible with {type(solution)}",
+                validation_type=self.has_edgeport_when_forbidden.__name__,
+            )
+
+    def flux_integration_layer_exists_if_needed(self, simulation, solution):
+        """Validation check related to the presence of layers and magnetic flux integration.
+        Args:
+            simulation: A Simulation object.
+        Raises:
+            Errors when validation criteria are not met.
+        """
+        sim_name = simulation.name
+        has_integrate_flux = hasattr(solution, "integrate_magnetic_flux")
+        integrate_flux = solution.integrate_magnetic_flux if has_integrate_flux else False
+
+        # Ensures that a layer with thickness == 0 and a material != "pec"
+        # exists in the setup when "integrate_magnetic_flux" is True.
+        if integrate_flux:
+            layers = simulation.layers
+            has_flux_integration_layer = False
+            for layer in layers.values():
+                if layer.get("thickness", -1) == 0 and layer.get("material", "") != "pec":
+                    has_flux_integration_layer = True
+                    break
+            if not has_flux_integration_layer:
+                raise ValidateSimError(
+                    f"Simulation '{sim_name}' has 'integrate_magnetic_flux = True' 
+                    but the integration layer is missing.",
+                    validation_type=self.flux_integration_layer_exists_if_needed.__name__,
+                )
+
+
+def get_port_names(simulation):
+    """Helper function that returns a list of port names in a Simulation object.
+    Args:
+        simulation: A Simulation object.
+    Returns:
+        port_names: A list of names related to the ports present in simulation.
+    """
+    port_list = simulation.ports
+    port_names = []
+    for port in port_list:
+        port_names.append(type(port).__name__)
+    return port_names
+
+
+class ValidateSimError(Exception):
+    """Custom exception class for specific error handling."""
+
+    def __init__(self, message, validation_type=None):
+        super().__init__(message)
+        self.validation_type = validation_type

tests/conftest.py

@@ -44,8 +44,9 @@ def get_sim(cls, **parameters):
 
 @pytest.fixture
 def perform_test_ansys_export_produces_output_files(tmp_path, get_simulation):
-    def perform_test_ansys_export_produces_output_implementation(cls, **parameters):
-        bat_filename = export_ansys([get_simulation(cls, **parameters)], path=tmp_path)
+    def perform_test_ansys_export_produces_output_implementation(cls, ansys_solution=None, **parameters):
+        simulation = get_simulation(cls, **parameters)
+        bat_filename = export_ansys([(simulation, ansys_solution) if ansys_solution else simulation], path=tmp_path)
         assert Path(bat_filename).exists()
 
     return perform_test_ansys_export_produces_output_implementation

tests/simulations/ansys/ansys_export/test_ansys_export_write.py

@@ -18,7 +18,8 @@
 
 
 from kqcircuits.simulations.empty_simulation import EmptySimulation
+from kqcircuits.simulations.export.ansys.ansys_solution import AnsysSolution
 
 
 def test_export_produces_output_files(perform_test_ansys_export_produces_output_files):
-    perform_test_ansys_export_produces_output_files(EmptySimulation)
+    perform_test_ansys_export_produces_output_files(EmptySimulation, ansys_solution=AnsysSolution())

tests/simulations/simulation_validate/test_simulation_validate.py

@@ -0,0 +1,157 @@
+# This code is part of KQCircuits
+# Copyright (C) 2024 IQM Finland Oy
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
+# License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
+# version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with this program. If not, see
+# https://www.gnu.org/licenses/gpl-3.0.html.
+#
+# The software distribution should follow IQM trademark policy for open-source software
+# (meetiqm.com/iqm-open-source-trademark-policy). IQM welcomes contributions to the code.
+# Please see our contribution agreements for individuals (meetiqm.com/iqm-individual-contributor-license-agreement)
+# and organizations (meetiqm.com/iqm-organization-contributor-license-agreement).
+
+import pytest
+from kqcircuits.simulations.export.simulation_validate import ValidateSim
+from kqcircuits.simulations.simulation import Simulation
+from kqcircuits.simulations.port import InternalPort, EdgePort
+from kqcircuits.simulations.export.ansys.ansys_solution import (
+    AnsysCurrentSolution,
+    AnsysHfssSolution,
+    AnsysEigenmodeSolution,
+    AnsysVoltageSolution,
+)
+from kqcircuits.simulations.export.elmer.elmer_solution import (
+    ElmerVectorHelmholtzSolution,
+    ElmerCapacitanceSolution,
+)
+from kqcircuits.simulations.export.simulation_validate import ValidateSimError
+
+
+@pytest.fixture
+def mock_simulation(layout):
+    simulation = Simulation(layout)
+    simulation.name = "test_sim"
+    return simulation
+
+
+@pytest.mark.parametrize(
+    "solution",
+    [
+        AnsysCurrentSolution(),
+        AnsysHfssSolution(),
+        AnsysVoltageSolution(),
+        ElmerVectorHelmholtzSolution(),
+        ElmerCapacitanceSolution(),
+    ],
+)
+def test_has_no_ports_when_required(mock_simulation, solution):
+    ports = [InternalPort(0, [0, 0, 1, 1])]
+    mock_simulation.ports = ports
+    validator = ValidateSim()
+    validator.has_no_ports_when_required(mock_simulation, solution)
+
+
+@pytest.mark.parametrize(
+    "solution",
+    [
+        AnsysCurrentSolution(),
+        AnsysHfssSolution(),
+        AnsysVoltageSolution(),
+        ElmerVectorHelmholtzSolution(),
+        ElmerCapacitanceSolution(),
+    ],
+)
+def test_raise_no_port_error_when_required(mock_simulation, solution):
+    validator = ValidateSim()
+    with pytest.raises(ValidateSimError) as expected_error:
+        validator.has_no_ports_when_required(mock_simulation, solution)
+    assert expected_error.value.validation_type == "has_no_ports_when_required"
+
+
+@pytest.mark.parametrize("solution", [AnsysEigenmodeSolution(), AnsysVoltageSolution(), AnsysCurrentSolution()])
+def test_has_edgeport_when_forbidden(mock_simulation, solution):
+    ports = [InternalPort(0, [0, 0, 1, 1])]
+    mock_simulation.ports = ports
+    validator = ValidateSim()
+    validator.has_edgeport_when_forbidden(mock_simulation, solution)
+
+
+@pytest.mark.parametrize("solution", [AnsysEigenmodeSolution(), AnsysVoltageSolution(), AnsysCurrentSolution()])
+def test_raise_edgeport_error_when_forbidden(mock_simulation, solution):
+    ports = [EdgePort(0, [0, 0, 1, 1])]
+    mock_simulation.ports = ports
+    validator = ValidateSim()
+    with pytest.raises(ValidateSimError) as expected_error:
+        validator.has_edgeport_when_forbidden(mock_simulation, solution)
+    assert expected_error.value.validation_type == "has_edgeport_when_forbidden"
+
+
+@pytest.mark.parametrize(
+    "solution", [AnsysHfssSolution(), AnsysEigenmodeSolution(), AnsysCurrentSolution(), AnsysVoltageSolution()]
+)
+def test_flux_integration_layer_exists_if_needed_passes_if_no_layers(mock_simulation, solution):
+    validator = ValidateSim()
+    validator.flux_integration_layer_exists_if_needed(mock_simulation, solution)
+
+
+@pytest.mark.parametrize(
+    "solution", [AnsysHfssSolution(), AnsysEigenmodeSolution(), AnsysCurrentSolution(), AnsysVoltageSolution()]
+)
+def test_flux_integration_layer_exists_if_needed_passes_if_has_needed_layer(mock_simulation, solution):
+    validator = ValidateSim()
+    mock_simulation.layers["flux_integration_layer"] = {"z": 0.0, "thickness": 0.0, "material": "non-pec"}
+    solution.integrate_magnetic_flux = True
+    validator.flux_integration_layer_exists_if_needed(mock_simulation, solution)
+
+
+@pytest.mark.parametrize(
+    "solution", [AnsysHfssSolution(), AnsysEigenmodeSolution(), AnsysCurrentSolution(), AnsysVoltageSolution()]
+)
+def test_flux_integration_layer_exists_if_needed_passes_if_has_needed_layer_and_others(mock_simulation, solution):
+    validator = ValidateSim()
+    mock_simulation.layers["flux_integration_layer"] = {"z": 0.0, "thickness": 0.0, "material": "non-pec"}
+    mock_simulation.layers["thick_non_pec"] = {"z": 0.0, "thickness": 0.1, "material": "non-pec"}
+    mock_simulation.layers["sheet_pec"] = {"z": 0.0, "thickness": 0.0, "material": "pec"}
+    solution.integrate_magnetic_flux = True
+    validator.flux_integration_layer_exists_if_needed(mock_simulation, solution)
+
+
+@pytest.mark.parametrize(
+    "solution", [AnsysHfssSolution(), AnsysEigenmodeSolution(), AnsysCurrentSolution(), AnsysVoltageSolution()]
+)
+def test_flux_integration_layer_passes_if_not_integrating_flux(mock_simulation, solution):
+    validator = ValidateSim()
+    solution.integrate_magnetic_flux = False
+    mock_simulation.layers["thick_non_pec"] = {"z": 0.0, "thickness": 0.1, "material": "non-pec"}
+    mock_simulation.layers["sheet_pec"] = {"z": 0.0, "thickness": 0.0, "material": "pec"}
+    validator.flux_integration_layer_exists_if_needed(mock_simulation, solution)
+
+
+@pytest.mark.parametrize(
+    "solution", [AnsysHfssSolution(), AnsysEigenmodeSolution(), AnsysCurrentSolution(), AnsysVoltageSolution()]
+)
+def test_raise_flux_integration_error_if_has_no_needed_layer(mock_simulation, solution):
+    validator = ValidateSim()
+    solution.integrate_magnetic_flux = True
+    with pytest.raises(ValidateSimError) as expected_error:
+        validator.flux_integration_layer_exists_if_needed(mock_simulation, solution)
+    assert expected_error.value.validation_type == "flux_integration_layer_exists_if_needed"
+
+
+@pytest.mark.parametrize(
+    "solution", [AnsysHfssSolution(), AnsysEigenmodeSolution(), AnsysCurrentSolution(), AnsysVoltageSolution()]
+)
+def test_raise_flux_integration_error_if_has_no_needed_layer_and_others(mock_simulation, solution):
+    validator = ValidateSim()
+    solution.integrate_magnetic_flux = True
+    mock_simulation.layers["thick_non_pec"] = {"z": 0.0, "thickness": 0.1, "material": "non-pec"}
+    mock_simulation.layers["sheet_pec"] = {"z": 0.0, "thickness": 0.0, "material": "pec"}
+    with pytest.raises(ValidateSimError) as expected_error:
+        validator.flux_integration_layer_exists_if_needed(mock_simulation, solution)
+    assert expected_error.value.validation_type == "flux_integration_layer_exists_if_needed"