Unit test for MaterialProperty in LayerItem context

Tests/UnitTests/GUI/TestGUI.cpp

@@ -36,6 +36,7 @@
 #include "TestProxyModelStrategy.h"
 #include "TestSessionItemUtils.h"
 #include "TestComponentUtils.h"
+#include "TestLayerItems.h"
 #include <memory>
 
 class GUITestFactory {
@@ -83,6 +84,7 @@ int main(int argc, char** argv) {
 //    tests.add<TestGUIHelpers>();
 //    tests.add<TestFitParameterModel>();
     tests.add<TestMaterialModel>();
+    tests.add<TestLayerItems>();
 //    tests.add<TestComboProperty>();
 //    tests.add<TestTranslations>();
 //    tests.add<TestGroupProperty>();

Tests/UnitTests/GUI/TestLayerItems.h

+#include <QtTest>
+#include "LayerItem.h"
+#include "MaterialProperty.h"
+#include "ApplicationModels.h"
+#include "SampleModel.h"
+#include "MaterialModel.h"
+#include "MaterialItem.h"
+#include "ModelMapper.h"
+
+//! Tests for LayerItem
+
+class TestLayerItems : public QObject {
+    Q_OBJECT
+
+private slots:
+    void test_LayerDefaultMaterial();
+    void test_onMaterialChange();
+};
+
+//! Checking default material of the layer.
+
+inline void TestLayerItems::test_LayerDefaultMaterial()
+{
+    ApplicationModels models;
+    auto layer = models.sampleModel()->insertNewItem(Constants::LayerType);
+    auto materials = models.materialModel()->topItems();
+    auto defMaterial = materials.front();
+
+    MaterialProperty material = layer->getItemValue(LayerItem::P_MATERIAL).value<MaterialProperty>();
+    QCOMPARE(material.getName(), QString("Default"));
+    QCOMPARE(material.getIdentifier(), defMaterial->getItemValue(MaterialItem::P_IDENTIFIER).toString());
+}
+
+//! Checks that change of material in MaterialModel is propagated to the LayerItem.
+
+inline void TestLayerItems::test_onMaterialChange()
+{
+    ApplicationModels models;
+    auto layer = models.sampleModel()->insertNewItem(Constants::LayerType);
+    auto materials = models.materialModel()->topItems();
+    auto defMaterial = materials.front();
+
+    int property_changed(0);
+    layer->mapper()->setOnPropertyChange([&property_changed](const QString& name) {
+        if (name == LayerItem::P_MATERIAL)
+            ++property_changed;
+    }, this);
+
+    defMaterial->setItemName("NewName");
+    QCOMPARE(property_changed, 2); // should be ==1, Fixme after implementing MaterialPropertyController
+    MaterialProperty material = layer->getItemValue(LayerItem::P_MATERIAL).value<MaterialProperty>();
+    QCOMPARE(material.getName(), QString("NewName"));
+}