patch package based on jestjs/jest#9983 (comment)

package.json

@@ -15,7 +15,8 @@
     "test:integration": "yarn testchain --ci yarn lerna --stream --concurrency 1 --no-bail run test:integration",
     "test:build": "yarn testchain --ci yarn lerna run --stream --concurrency 1 --no-bail test:build",
     "test:logs": "tail -f ./node_modules/@makerdao/testchain/var/ganache.out | grep -v 'eth_blockNumber'",
-    "update-addresses": "./scripts/install-testchain-outputs.sh"
+    "update-addresses": "./scripts/install-testchain-outputs.sh",
+    "postinstall": "patch-package"
   },
   "husky": {
     "hooks": {

packages/dai-plugin-scd/src/QueryApiScd.js

@@ -1,4 +1,4 @@
-import ethUtil from 'ethereumjs-util';
+import { toChecksumAddress } from 'ethereumjs-util';
 import { getQueryResponse } from './utils/getQueryResponse';
 import uniq from 'lodash/uniq';
 const MAINNET_SERVER_URL = 'https://sai-mainnet.makerfoundation.com/v1';
@@ -19,7 +19,7 @@ export default class QueryApi {
   }
 
   async getCdpIdsForOwner(rawAddress) {
-    const address = ethUtil.toChecksumAddress(rawAddress);
+    const address = toChecksumAddress(rawAddress);
     const query = `query ($lad: String) {
       cups1: allCups(condition: { lad: $lad }) {
         nodes {

packages/dai/src/eth/accounts/factories.js

@@ -1,4 +1,4 @@
-import ethUtil from 'ethereumjs-util';
+import { privateToAddress } from 'ethereumjs-util';
 import Wallet from 'web3-provider-engine/dist/es5/subproviders/wallet';
 import { getBrowserProvider } from './setup';
 import assert from 'assert';
@@ -8,12 +8,12 @@ export function privateKeyAccountFactory({ key }) {
     throw new Error('Invalid private key format');
   }
 
-  const [keyWithPrefix, keySansPrefix] = key.startsWith('0x')
+  const [, keySansPrefix] = key.startsWith('0x')
     ? [key, key.replace(/^0x/, '')]
     : ['0x' + key, key];
 
   const address =
-    '0x' + ethUtil.privateToAddress(keyWithPrefix).toString('hex');
+    '0x' + privateToAddress(Buffer.from(keySansPrefix, 'hex')).toString('hex');
   const keyBuffer = Buffer.from(keySansPrefix, 'hex');
 
   const subprovider = new Wallet(

patches/jest-environment-jsdom+27.2.0.patch

@@ -0,0 +1,12 @@
+diff --git a/node_modules/jest-environment-jsdom/build/index.js b/node_modules/jest-environment-jsdom/build/index.js
+index 6695225..ae7e9e6 100644
+--- a/node_modules/jest-environment-jsdom/build/index.js
++++ b/node_modules/jest-environment-jsdom/build/index.js
+@@ -97,6 +97,7 @@ class JSDOMEnvironment {
+     (0, _jestUtil().installCommonGlobals)(global, config.globals); // TODO: remove this ASAP, but it currently causes tests to run really slow
+
+     global.Buffer = Buffer; // Report uncaught errors.
++    global.Uint8Array = Uint8Array; 
+
+     this.errorEventListener = event => {
+       if (userErrorListenerCount === 0 && event.error) {