diff --git a/src/test/templates/callbackgentest.mako.hpp b/src/test/templates/callbackgentest.mako.hpp
new file mode 100644
index 0000000..f387c23
--- /dev/null
+++ b/src/test/templates/callbackgentest.mako.hpp
@@ -0,0 +1,17 @@
+auto storageCount = ${len(instances)};
+
+const std::array<Index, ${len(instancegroups)}> indicies = {{
+% for g in instancegroups:
+    {
+    % for i in g.members:
+        {Index::key_type{${i[0]}, ${i[2]}, ${i[3]}}, ${i[5]}},
+    % endfor
+    },
+% endfor
+}};
+
+const std::array<std::tuple<std::string, size_t>, ${len(callbacks)}> callbacks = {{
+% for c in callbacks:
+    std::tuple<std::string, size_t>{"${c.datatype}", ${c.instances}},
+% endfor
+}};