1 files changed, 45 insertions, 0 deletions
diff --git a/test/identity.cc b/test/identity.cc
new file mode 100644
index 00000000..ea1f4603
--- /dev/null
+++ b/test/identity.cc
@@ -0,0 +1,45 @@
+/*
+ * This small program tests how IdentifiableObject works with multiple
+ * inheritance ("diamond" inheritance, more precisely, since all
+ * classes have there root in IdentifiableObject.) With virtual
+ * superclasses, this example works actually (for comprehensible
+ * reasons), but I'm not sure about more compex class hierarchies.
+ */
+
+#include "../lout/identity.hh"
+
+using namespace lout::identity;
+
+class A: virtual public IdentifiableObject
+{
+public:
+   static int CLASS_ID;
+   inline A () { registerName ("A", &CLASS_ID); }
+};
+
+class B: virtual public IdentifiableObject
+{
+public:
+   static int CLASS_ID;
+   inline B () { registerName ("B", &CLASS_ID); }
+};
+
+class C: public A, public B
+{
+public:
+   static int CLASS_ID;
+   inline C () { registerName ("C", &CLASS_ID); }
+};
+
+int A::CLASS_ID = -1, B::CLASS_ID = -1, C::CLASS_ID = -1;
+
+int main (int argc, char *argv[])
+{
+   C x;
+   assert (x.instanceOf (A::CLASS_ID));
+   assert (x.instanceOf (B::CLASS_ID));
+   assert (x.instanceOf (C::CLASS_ID));
+   printf ("A: %d, B: %d, C: %d, x: %d\n",
+           A::CLASS_ID, B::CLASS_ID, C::CLASS_ID, x.getClassId ());
+   return 0;
+}