Promisify web3 sync requests in tests (#1009)

test/helpers/increaseTime.js

@@ -31,8 +31,8 @@ export default function increaseTime (duration) {
  *
  * @param target time in seconds
  */
-export function increaseTimeTo (target) {
-  let now = latestTime();
+export async function increaseTimeTo (target) {
+  let now = (await latestTime());
   if (target < now) throw Error(`Cannot increase current time(${now}) to a moment in the past(${target})`);
   let diff = target - now;
   return increaseTime(diff);

test/helpers/latestTime.js

@@ -1,4 +1,7 @@
+import { ethGetBlock } from './web3';
+
 // Returns the time of the last mined block in seconds
-export default function latestTime () {
-  return web3.eth.getBlock('latest').timestamp;
+export default async function latestTime () {
+  const block = await ethGetBlock('latest');
+  return block.timestamp;
 }

test/helpers/toPromise.js

@@ -1,4 +0,0 @@
-export default func =>
-  (...args) =>
-    new Promise((resolve, reject) =>
-      func(...args, (error, data) => error ? reject(error) : resolve(data)));

test/helpers/web3.js

@@ -0,0 +1,7 @@
+const pify = require('pify');
+
+const ethAsync = pify(web3.eth);
+
+export const ethGetBalance = ethAsync.getBalance;
+export const ethSendTransaction = ethAsync.sendTransaction;
+export const ethGetBlock = ethAsync.getBlock;