diff --git a/tests/expected/sys_mman.stderr b/tests/expected/sys_mman.stderr
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/tests/expected/sys_mman.stdout b/tests/expected/sys_mman.stdout
new file mode 100644
index 0000000000000000000000000000000000000000..108b1819b00ce7a45b862d1c8cd0527d1a58f798
--- /dev/null
+++ b/tests/expected/sys_mman.stdout
@@ -0,0 +1,9 @@
+Page size: 4096
+Mapping 1 page of memory...
+Mapping 3 pages of memory...
+Randomizing mapping #1
+Randomizing mapping #2
+Unmapping page 2 of map2
+Randomizing page 1 of mapping #2
+Randomizing page 3 of mapping #2
+Unmapping it all at once!