diff --git a/mps/qa/test/testlib/assumed b/mps/qa/test/testlib/assumed
index e69de29bb2d..cf6890ef457 100644
--- a/mps/qa/test/testlib/assumed
+++ b/mps/qa/test/testlib/assumed
@@ -0,0 +1,27 @@
+% $HopeName:$
+%
+% Symbols listed here will be assumed by the harness to be available for
+% tests to use, even if they're not present in mps header files.
+%
+% If you define macros to cover for symbols that aren't defined, you need
+% to list them here
+%
+mps_space_clamp
+mps_arena_clamp
+mps_space_release
+mps_arena_release
+mps_space_collect
+mps_arena_collect
+mps_space_park
+mps_arena_park
+mps_space_reserved
+mps_arena_reserved
+mps_space_committed
+mps_arena_committed
+mps_space_destroy
+mps_arena_destroy
+mps_space_t
+mps_arena_t
+mps_arena_spare_committed
+mps_arena_spare_commit_limit
+mps_arena_spare_commit_limit_set