Prevent using materials of several types in Simulation and SpecularSimulation

Redmine: #1872

Core/Simulation/Simulation.cpp

@@ -104,6 +104,9 @@ void Simulation::setBeamPolarization(const kvector_t bloch_vector)
 void Simulation::prepareSimulation()
 {
     updateSample();
+    if (!m_sample_provider.sample()->containsCompliantMaterials())
+        throw std::runtime_error("Error in Simulation::prepareSimulation(): non-default materials of "
+                                 "several types are used in the sample provided");
     gsl_set_error_handler_off();
 }
 

Core/Simulation/SpecularSimulation.cpp

@@ -17,6 +17,7 @@
 #include "IMultiLayerBuilder.h"
 #include "MultiLayer.h"
 #include "SpecularMatrix.h"
+#include "MaterialUtils.h"
 #include <memory>
 
 SpecularSimulation::SpecularSimulation()
@@ -89,6 +90,12 @@ void SpecularSimulation::prepareSimulation()
         throw Exceptions::ClassInitializationException(
             "SpecularSimulation::checkSimulation() -> Error. No sample set");
 
+    // Check if the sample provided contains non-default materials of the same type.
+    // TODO: replace with Multilayer::containsCompliantMaterials when working on SpecularSimulation class
+    if (MaterialUtils::checkMaterialTypes(mP_sample->containedMaterials()) == MATERIAL_TYPES::InvalidMaterialType)
+        throw std::runtime_error("Error in SpecularSimulation::prepareSimulation(): non-default "
+                                 "materials of several types in the sample provided");
+
     updateCoefficientDataAxes();
 }