diff --git a/unittests/inheritance.chai b/unittests/inheritance.chai
new file mode 100644
index 00000000..d93ca88d
--- /dev/null
+++ b/unittests/inheritance.chai
@@ -0,0 +1,8 @@
+load_module("test_module")
+
+var t0 = TestBaseType();
+var t = TestDerivedType();
+
+assert_equal(t0.func(), 0);
+assert_equal(t.func(), 1);
+