diff --git a/tests/Makefile b/tests/Makefile
new file mode 100644
index 0000000..6d41757
--- /dev/null
+++ b/tests/Makefile
@@ -0,0 +1,7 @@
+all: samples.bin
+
+samples.bin: samples.txt
+	racket ../implementations/racket/preserves/tool.rkt --atob < $< > $@
+
+clean:
+	rm -f samples.bin
diff --git a/tests/samples.bin b/tests/samples.bin
new file mode 100644
index 0000000..e0063f8
Binary files /dev/null and b/tests/samples.bin differ