add merge tests for #263

src/utils/updates.js

@@ -0,0 +1,16 @@
+
+/**
+ * @param {Array<Uint8Array>} updates
+ * @return {Uint8Array}
+ */
+export const mergeUpdates = updates => {
+  return updates[0]
+}
+
+/**
+ * @param {Uint8Array} update
+ * @param {Uint8Array} sv
+ */
+export const diffUpdate = (update, sv) => {
+  return update
+}