使用Ignite创建Expo React Native应用时Jest解析失败求助

项目背景 #

• 我用Ignite创建了一个Expo React Native应用
• 按照组件测试生成指南创建了测试文件，并安装了@testing-library/react-native

测试文件代码（HelloWorld.spec.tsx） #

import React from "react"
import { fireEvent, render, screen } from "@testing-library/react-native"
import { HelloWorld } from "../HelloWorld"

describe("HelloWorld", () => {
  it("renders", () => {
    render(<HelloWorld />)
    expect(screen.getByText("Hello")).toBeTruthy()
  })
})

运行测试时报错详情 #

● Test suite failed to run

    Jest encountered an unexpected token

    Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.

    Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration.

    By default "node_modules" folder is ignored by transformers.

    Here's what you can do:
     • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it.
     • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript
     • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
     • If you need a custom transformation specify a "transform" option in your config.
     • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

    You'll find more details and examples of these config options in the docs:
    https://jestjs.io/docs/configuration
    For information about custom transformations, see:
    https://jestjs.io/docs/code-transformation

    Details:

    /Users/montylennie/AbutFrontend/app/components/specs/HelloWorld.spec.tsx:12
            (0, react_native_1.render)(<HelloWorld_1.HelloWorld />);
                                       ^

    SyntaxError: Unexpected token '<'

      at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1518:14)
      at asyncGeneratorStep (node_modules/@babel/runtime/helpers/asyncToGenerator.js:3:24)
      at asyncGeneratorStep (node_modules/@babel/runtime/helpers/asyncToGenerator.js:22:9)

当前jest.config.js配置 #

const { defaults: tsjPreset } = require("ts-jest/presets")

/** @type {import('@jest/types').Config.ProjectConfig} */
module.exports = {
  ...tsjPreset,
  preset: "jest-expo",
  transformIgnorePatterns: [
    "<rootDir>/node_modules/(react-clone-referenced-element|@react-native-community|react-navigation|@react-navigation/.*|@unimodules/.*|native-base|react-native-code-push)",
    "jest-runner",
  ],
  testPathIgnorePatterns: ["<rootDir>/node_modules/", "<rootDir>/.maestro/", "@react-native"],
  testEnvironment: "jsdom",
  setupFiles: ["<rootDir>/test/setup.ts"],
  setupFilesAfterEnv: ["<rootDir>/jest-setup-after-env.js"],
}

jest-setup-after-env.js内容 #

import '@testing-library/jest-native/extend-expect';

疑问 #

请问我遗漏了什么配置？

内容的提问来源于stack exchange，提问作者monty_lennie