update ERC20Standard to use @metamask/abi-utils instead of @ethersproject/abi

packages/assets-controllers/jest.config.js

@@ -24,5 +24,5 @@ module.exports = merge(baseConfig, {
   },
 
   // We rely on `window` to make requests
-  testEnvironment: 'jsdom',
+  testEnvironment: '<rootDir>/jest.environment.js',
 });

packages/assets-controllers/jest.environment.js

@@ -0,0 +1,18 @@
+/* eslint-disable */
+const JSDOMEnvironment = require('jest-environment-jsdom');
+
+// Custom test environment copied from https://github.com/jsdom/jsdom/issues/2524
+// in order to add TextEncoder to jsdom. TextEncoder is expected by jose.
+
+module.exports = class CustomTestEnvironment extends JSDOMEnvironment {
+  async setup() {
+    await super.setup();
+    if (typeof this.global.TextEncoder === 'undefined') {
+      const { TextEncoder, TextDecoder } = require('util');
+      this.global.TextEncoder = TextEncoder;
+      this.global.TextDecoder = TextDecoder;
+      this.global.ArrayBuffer = ArrayBuffer;
+      this.global.Uint8Array = Uint8Array;
+    }
+  }
+};

packages/assets-controllers/package.json

@@ -29,16 +29,17 @@
     "test:watch": "jest --watch"
   },
   "dependencies": {
-    "@ethersproject/abi": "^5.7.0",
     "@ethersproject/bignumber": "^5.7.0",
     "@ethersproject/contracts": "^5.7.0",
     "@ethersproject/providers": "^5.7.0",
+    "@metamask/abi-utils": "^1.1.0",
     "@metamask/base-controller": "workspace:^",
     "@metamask/contract-metadata": "^2.1.0",
     "@metamask/controller-utils": "workspace:^",
     "@metamask/metamask-eth-abis": "3.0.0",
     "@metamask/network-controller": "workspace:^",
     "@metamask/preferences-controller": "workspace:^",
+    "@metamask/utils": "^3.3.1",
     "@types/uuid": "^8.3.0",
     "abort-controller": "^3.0.0",
     "async-mutex": "^0.2.6",
@@ -58,6 +59,7 @@
     "deepmerge": "^4.2.2",
     "ethjs-provider-http": "^0.1.6",
     "jest": "^26.4.2",
+    "jest-environment-jsdom": "^26.4.2",
     "nock": "^13.0.7",
     "sinon": "^9.2.4",
     "ts-jest": "^26.5.2",

packages/assets-controllers/src/Standards/ERC20Standard.test.ts

@@ -153,7 +153,7 @@ describe('ERC20Standard', () => {
 
     // Some proxy contracts don't revert when requesting symbol() and decimals(), this test makes sure we handle those cases.
     await expect(erc20Standard.getTokenSymbol(AMBIRE_ADDRESS)).rejects.toThrow(
-      'Failed to parse token symbol',
+      'Value must be a hexadecimal string, starting with "0x".',
     );
 
     await expect(

packages/assets-controllers/src/Standards/ERC20Standard.ts

@@ -1,9 +1,11 @@
 import { Contract } from '@ethersproject/contracts';
 import { abiERC20 } from '@metamask/metamask-eth-abis';
 import { BN, toUtf8 } from 'ethereumjs-util';
-import { AbiCoder } from '@ethersproject/abi';
+import { decodeSingle } from '@metamask/abi-utils';
+
 import { Web3Provider } from '@ethersproject/providers';
 import { ERC20 } from '@metamask/controller-utils';
+import { assertIsStrictHexString } from '@metamask/utils';
 import { ethersBigNumberToBN } from '../assetsUtil';
 
 export class ERC20Standard {
@@ -56,12 +58,10 @@ export class ERC20Standard {
     // Signature for calling `symbol()`
     const payload = { to: address, data: '0x95d89b41' };
     const result = await this.provider.call(payload);
-
-    const abiCoder = new AbiCoder();
-
+    assertIsStrictHexString(result);
     // Parse as string - treat empty string as failure
     try {
-      const decoded = abiCoder.decode(['string'], result)[0];
+      const decoded = decodeSingle('string', result);
       if (decoded?.length > 0) {
         return decoded;
       }