modify approach

.eslintrc.js

@@ -70,7 +70,6 @@ module.exports = {
     'no-negated-condition': 'off',
     'no-new': 'off',
     'no-param-reassign': 'off',
-    'node/prefer-global/text-decoder': 'off',
     radix: 'off',
     'require-atomic-updates': 'off',
     'jsdoc/match-description': [

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

@@ -58,6 +58,7 @@
     "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",

tests/setup.ts

@@ -1,6 +1 @@
 import 'isomorphic-fetch';
-// eslint-disable-next-line
-import { TextDecoder } from 'util';
-
-// not sure why this is a type mismatch and has to be type cast to any...?
-global.TextDecoder = TextDecoder as any;