All?

tests/test_iworkspace_manager.cpp

+#include "catch2/catch.hpp"
+#include <tadah/core/memory/IWorkspaceManager.h>
+
+namespace tadah {
+namespace core {
+namespace memory {
+
+// A minimal concrete mock derived from IWorkspaceManager
+class MockWorkspaceManager : public IWorkspaceManager {
+public:
+    // Provide a virtual destructor, automatically calls base ~IWorkspaceManager()
+    ~MockWorkspaceManager() override = default;
+    // Implement any pure virtual methods if the interface has them
+    // For example:
+    // void somePureVirtualFunction() override { /* do nothing */ }
+};
+
+} // namespace memory
+} // namespace core
+} // namespace tadah
+
+TEST_CASE("IWorkspaceManager mock derived class", "[IWorkspaceManager]") 
+{
+    using namespace tadah::core::memory;
+
+    // We simply create and destroy a MockWorkspaceManager object.
+    // This confirms that ~IWorkspaceManager() is indeed callable and causes no errors.
+    MockWorkspaceManager mgr;
+    REQUIRE(true); // If we reach this line, construction & destruction work.
+}
+