如果节点的global.TextDecoder类型不匹配，如何在jsdom中设置util.TextDecoder？

Question

尝试在NX (类型记录/角)中使用jsdom和Jest，我就会遇到TextEncoder和TextDecoder不存在的问题。无论我将jest testEnvironment设置为'jsdom'还是'node'，以及节点的版本为10到16，结果都是一样的)

因此，按照其他人发布的解决方案(谢谢！)，我从节点导入了test-setup.ts中的解决方案，并将它们设置在节点全局对象上：

import 'jest-preset-angular/setup-jest'
import { TextEncoder, TextDecoder } from 'util';

global.TextEncoder = TextEncoder;
global.TextDecoder = TextDecoder;

这似乎适用于TextEncoder，但不适用于TextDecoder。

   libs/xplat/features/test-setup.ts:10:1 - error TS2322: Type 'typeof TextDecoder' is not assignable to type '{ new (label?: string | undefined, options?: TextDecoderOptions | undefined): TextDecoder; prototype: TextDecoder; }'.
      The types of 'prototype.decode' are incompatible between these types.
        Type '(input?: ArrayBufferView | ArrayBuffer | null | undefined, options?: { stream?: boolean | undefined; } | undefined) => string' is not assignable to type '(input?: BufferSource | undefined, options?: TextDecodeOptions | undefined) => string'.
          Types of parameters 'input' and 'input' are incompatible.
            Type 'BufferSource | undefined' is not assignable to type 'ArrayBufferView | ArrayBuffer | null | undefined'.
              Type 'ArrayBufferView' is not assignable to type 'ArrayBufferView | ArrayBuffer | null | undefined'.
                Type 'ArrayBufferView' is missing the following properties from type 'DataView': getFloat32, getFloat64, getInt8, getInt16, and 17 more.

    10 global.TextDecoder = TextDecoder;

我是否应该使用不同的TextDecoder？特别是，是否有一个与jest的jsdom捆绑在一起，而我只是不知道如何使用？

为了防止有帮助，这里有一些版本(来自我最近的package.json)：

"devDependencies": {
    "@angular-devkit/architect": "^0.1301.2",
    "@angular-devkit/build-angular": "<=13.0.2",
    ...
    "@nrwl/angular": "13.4.6",
    "@nrwl/cli": "13.4.6",
    ...
    "@nrwl/jest": "13.4.6",
     ...
    "@types/core-js": "^2.5.5",
    "@types/jest": "^27.0.2",
    "@types/jsdom": "^16.2.14",
    "@types/node": "14.14.33",
    "@types/whatwg-url": "^8.2.1",
    "@typescript-eslint/eslint-plugin": "~5.3.0",
    "@typescript-eslint/parser": "~5.3.0",
   ...
    "jest": "27.2.3",
    "jest-jasmine2": "^27.4.6",
    "jest-preset-angular": "11.0.0",
    "jsdom": "^19.0.0",
    "ng-mocks": "^12.5.1",
    ...
    "ts-jest": "27.0.5",
    "typescript": "~4.4.3",
    "util": "^0.12.4",
    "whatwg-url": "^11.0.0"
  },

Answer 1

我设法消除了错误，首先将全局对象强制给any，然后分配TextDecoder：

import { TextEncoder, TextDecoder } from "util";
(global as any).TextEncoder = TextEncoder;
(global as any).TextDecoder = TextDecoder;

我知道这不是实现预期目标的最佳方法，而且通常被认为是错误的实践，但是，由于这只是Jest的测试，我认为这应该是可以的。