Add cross-chain mappings to default token list (#1130)

* Add cross-chain mappings to default token list

* move test timeout setting to before hook

* remove unnecessary asyncs

* use updated token-list-bridge-utils version

* increase test timeout

Author: matteenm

package.json

@@ -30,6 +30,7 @@
   "devDependencies": {
     "@ethersproject/address": "^5.0.2",
     "@uniswap/token-lists": "^1.0.0-beta.29",
+    "@uniswap/token-list-bridge-utils": "^1.0.8",
     "ajv": "^6.12.3",
     "chai": "^4.2.0",
     "mocha": "^8.0.1",

src/buildList.js

@@ -6,10 +6,11 @@ const goerli = require("./tokens/goerli.json");
 const kovan = require("./tokens/kovan.json");
 const polygon = require("./tokens/polygon.json");
 const mumbai = require("./tokens/mumbai.json");
+const bridgeUtils = require('@uniswap/token-list-bridge-utils');
 
 module.exports = function buildList() {
   const parsed = version.split(".");
-  return {
+  const l1List = {
     name: "Uniswap Labs Default List",
     timestamp: new Date().toISOString(),
     version: {
@@ -29,4 +30,5 @@ module.exports = function buildList() {
         return t1.chainId < t2.chainId ? -1 : 1;
       }),
   };
+  return bridgeUtils.chainify(l1List);
 };

src/write.js

@@ -1,2 +1,3 @@
 const buildList = require('./buildList');
-console.log(JSON.stringify(buildList(), null, 2));
+
+buildList().then(data => console.log(JSON.stringify(data, null, 2)));

test/uniswap-default.test.js

@@ -7,9 +7,14 @@ const buildList = require('../src/buildList');
 
 const ajv = new Ajv({ allErrors: true, format: 'full' });
 const validator = ajv.compile(schema);
+let defaultTokenList;
+
+before(async function () {
+  this.timeout(60000);
+  defaultTokenList = await buildList();
+});
 
 describe('buildList', () => {
-  const defaultTokenList = buildList();
 
   it('validates', () => {
     expect(validator(defaultTokenList)).to.equal(true);