Add explanation to getWaitForNSubmissionsPromise

helpers/test-helper.js

@@ -993,6 +993,9 @@ exports.getWaitForNSubmissionsPromise = async function getWaitForNSubmissionsPro
   return new Promise(function (resolve, reject) {
     repCycleEthers.on("ReputationRootHashSubmitted", async (_miner, _hash, _nLeaves, _jrh, _entryIndex, event) => {
       let nSubmissions;
+      // If we've passed in a hash, we check how many submissions that hash in particular has
+      // If not, and we're just waiting for N submissions from any hash, we lookup the number of
+      // submissions the hash in the emitted event that triggered this function has
       if (rootHash === _hash) {
         nSubmissions = await repCycleEthers.getNSubmissionsForHash(rootHash, nLeaves, jrh);
       } else {