1 files changed, 9 insertions, 0 deletions
diff --git a/test/gleam_stdlib_test_ffi.mjs b/test/gleam_stdlib_test_ffi.mjs
index 90eeaf0..cbf0382 100755
--- a/test/gleam_stdlib_test_ffi.mjs
+++ b/test/gleam_stdlib_test_ffi.mjs
@@ -33,3 +33,12 @@ ${passes} passes
 ${failures} failures`);
   process.exit(failures ? 1 : 0);
 }
+
+export function uint8array(list) {
+  let ints = list.toArray();
+  let array = new Uint8Array(ints.length);
+  for (let i = 0; i < ints.length; i++) {
+    array[i] = ints[i];
+  }
+  return array;
+}