Added a Ruby runtime test for the director_wombat.i test case.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@5124 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/ruby/director_wombat_runme.rb

@@ -0,0 +1,49 @@
+require 'director_wombat'
+
+include Director_wombat
+
+# Test base class functionality
+barObj = Bar.new
+
+# Bar#meth should return a Foo_integers instance
+fooIntsObj = barObj.meth
+raise RuntimeError unless fooIntsObj.instance_of?(Foo_integers)
+
+# Foo_integers#meth(n) should return n
+raise RuntimeError if fooIntsObj.meth(42) != 42
+
+#
+# Now subclass Foo_integers, but override its virtual method
+# meth(n) so that it returns the number plus one.
+#
+class MyFooInts < Foo_integers
+  def meth(n)
+    n + 1
+  end
+end
+
+#
+# Subclass Bar and override its virtual method meth()
+# so that it returns a new MyFooInts instance instead of
+# a Foo_integers instance.
+#
+class MyBar < Bar
+  def meth
+    MyFooInts.new
+  end
+end
+
+#
+# Now repeat previous tests:
+#
+# Create a MyBar instance...
+#
+barObj = MyBar.new
+
+# MyBar#meth should return a MyFooInts instance
+fooIntsObj = barObj.meth
+raise RuntimeError unless fooIntsObj.instance_of?(MyFooInts)
+
+# MyFooInts#meth(n) should return n+1
+raise RuntimeError if fooIntsObj.meth(42) != 43
+