chore(StatusQ/TestLib): TestModel::resetAndClear method added

ui/StatusQ/tests/src/TestHelpers/testmodel.cpp

@@ -134,6 +134,15 @@ void TestModel::reset()
     endResetModel();
 }
 
+void TestModel::resetAndClear()
+{
+    beginResetModel();
+    std::for_each(m_data.begin(), m_data.end(), [](auto& e) {
+        e.second.clear();
+    });
+    endResetModel();
+}
+
 void TestModel::initRoles()
 {
     m_roles.reserve(m_data.size());

ui/StatusQ/tests/src/TestHelpers/testmodel.h

@@ -29,6 +29,9 @@ public:
     // emits modelAboutToBeReset/modelReset, content remains the same
     void reset();
 
+    // emits modelAboutToBeReset/modelReset, content is removed
+    void resetAndClear();
+
 private:
     void initRoles();