React テスト

$ yarn add jest ts-jest @testing-library/react @testing-library/react-hooks @types/jest jest-fetch-mock --dev

npm run test

$ npm run test

> narou-front@0.1.0 test /home/kz/wk/narou-front
> jest

 FAIL  src/__tests__/index.test.tsx
  ● 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:

    /home/kz/wk/narou-front/node_modules/tailwindcss/tailwind.css:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){@tailwind base;
                                                                                      ^

    SyntaxError: Invalid or unexpected token

      1 | // Next.js API route support: https://nextjs.org/docs/api-routes/introduction
    > 2 | import 'tailwindcss/tailwind.css';
        | ^
      3 | import GlobalNav from '../components/atoms/globalnav';
      4 | import Card from '../components/atoms/card';
      5 | import React, { useState, useEffect, useReducer, useRef } from "react"

      at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1728:14)
      at Object.<anonymous> (src/pages/index.tsx:2:1)

$ npm run test

> narou-front@0.1.0 test /home/kz/wk/narou-front
> jest

 FAIL  src/__tests__/index.test.tsx
  Books
    ✕ render (2 ms)

  ● Books › render

    The error below may be caused by using the wrong test environment, see https://jestjs.io/docs/configuration#testenvironment-string.
    Consider using the "jsdom" test environment.
    
    ReferenceError: document is not defined

      21 |     };
      22 |
    > 23 |     const { asFragment } = render(<Books bookResult={BookResult} genreResult={GenreResult} />)
         |                                  ^
      24 |     expect(asFragment()).toMatchSnapshot()
      25 |   })
      26 | })

      at render (node_modules/@testing-library/react/dist/pure.js:83:5)
      at Object.<anonymous> (src/__tests__/index.test.tsx:23:34)

test("render", () => {
  const { asFragment } = render(<Counter />)
  expect(asFragment()).toMatchSnapshot()
})

screen.debug();

  test("ジャンルを変更した場合", async () => {
    //APIから帰ってくる値のモック
    const BookResult:BookResult = {
      message: "ok",
      count: 0,
      data: []
    };
  
    const dataBooksMock = () =>
      new Promise((resolve) => {
        resolve({
          ok: true,
          status: 200,
          json: async () => (bookResult)
        })
      })
    global.fetch = jest.fn().mockImplementation(dataBooksMock)
  
    render(<Books bookResult={BookResult} genreResult={GenreResult} />)
    //プルダウンの変更
    const select = screen.getByRole('combobox')
    
    await waitFor(() => {
      fireEvent.change(select, {target: {value: '102'}})
    })
    screen.debug();
    expect(screen.findByText(/xxx/)).toBeInTheDocument();
  })

import ReactDOM from 'react-dom';
ReactDOM.render(<Counter />, container);
const button = container.querySelector('button');

warning: Each child in a list should have a unique "key" prop.

                {genreResult.data && genreResult.data.map((genre:Genre, index) => (
                  <option value={genre.genre_id} key={index}>{genre.genre_name}</option>
                ))}

    const maxLengthToPrint= 100000
    screen.debug(undefined, maxLengthToPrint)

const spiedSetStatus = jest.spyOn(analyticsModule, "setStatus")

  renderHook(() => useInitialAnalytics({ id: "foo", role: "bar" }))
  expect(spiedSetStatus).toBeCalledWith({ id: "foo", role: "bar" })
  expect(spiedSendPageview).toBeCalled()

  await waitFor(() => {
    fireEvent.input(keyword, {target: {value: '7'}})
    fireEvent.keyUp(keyword, {key: 'Enter', code: 13})
  })

$ npx majestic

$ yarn run lint
yarn run v1.22.5
$ next lint
info  - Loaded env from /home/kz/wk/narou-front/.env.local
info  - Loaded env from /home/kz/wk/narou-front/.env.production
info  - Using webpack 5. Reason: Enabled by default https://nextjs.org/docs/messages/webpack5
Error: Cannot read config file: /home/kz/wk/narou-front/node_modules/eslint-config-prettier/@typescript-eslint.js
Error: "prettier/@typescript-eslint" has been merged into "prettier" in eslint-config-prettier 8.0.0. See: https://github.com/prettier/eslint-config-prettier/blob/main/CHANGELOG.md#version-800-2021-02-21
Referenced from: /home/kz/wk/narou-front/.eslintrc.js
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

yarn add cypress @testing-library/cypress --dev