初始化jest

.editorconfig

+# http://editorconfig.org
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[Makefile]
+indent_style = tab

.gitignore

+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/npm-debug.log*
+/yarn-error.log
+/yarn.lock
+/package-lock.json
+
+# production
+/dist
+
+# misc
+.DS_Store
+
+# umi
+/src/.umi
+/src/.umi-production
+/src/.umi-test
+/.env.local

.prettierignore

+**/*.md
+**/*.svg
+**/*.ejs
+**/*.html
+package.json
+.umi
+.umi-production
+.umi-test

.prettierrc

+{
+  "singleQuote": true,
+  "trailingComma": "all",
+  "printWidth": 80,
+  "overrides": [
+    {
+      "files": ".prettierrc",
+      "options": { "parser": "json" }
+    }
+  ]
+}

.umirc.ts

+import { defineConfig } from 'umi';
+import path from 'path';
+
+export default defineConfig({
+  nodeModulesTransform: {
+    type: 'none',
+  },
+  routes: [
+    { path: '/', component: '@/pages/index' },
+    { exact: true, path: '/user', component: '@/pages/user' },
+    { component: '@/pages/404' },
+  ],
+  fastRefresh: {},
+  alias: {
+    '@': path.resolve(__dirname, './src')
+  },
+});

README.md

+# umi project
+
+## Getting Started
+
+Install dependencies,
+
+```bash
+$ yarn
+```
+
+Start the dev server,
+
+```bash
+$ yarn start
+```

jest.config.ts

+/*
+ * For a detailed explanation regarding each configuration property and type check, visit:
+ * https://jestjs.io/docs/en/configuration.html
+ */
+
+export default {
+  // All imported modules in your tests should be mocked automatically
+  // automock: false,
+
+  // Stop running tests after `n` failures
+  // bail: 0,
+
+  // The directory where Jest should store its cached dependency information
+  // cacheDirectory: "C:\\Users\\Lenovo\\AppData\\Local\\Temp\\jest",
+
+  // Automatically clear mock calls and instances between every test
+  clearMocks: true,
+
+  // Indicates whether the coverage information should be collected while executing the test
+  // collectCoverage: false,
+
+  // An array of glob patterns indicating a set of files for which coverage information should be collected
+  collectCoverageFrom: [
+    'src/**/*.{js,jsx,ts,tsx}',
+    '!**/typings/**',
+    '!**/types/**',
+    '!**/fixtures/**',
+    '!**/examples/**',
+    '!**/*.d.ts',
+  ],
+
+  // The directory where Jest should output its coverage files
+  coverageDirectory: 'coverage',
+
+  // An array of regexp pattern strings used to skip coverage collection
+  coveragePathIgnorePatterns: [
+    '\\\\node_modules\\\\',
+    '.umi',
+    '.umi-production',
+    'demos',
+  ],
+
+  // Indicates which provider should be used to instrument code for coverage
+  // coverageProvider: "babel",
+
+  // A list of reporter names that Jest uses when writing coverage reports
+  // coverageReporters: [
+  //   "json",
+  //   "text",
+  //   "lcov",
+  //   "clover"
+  // ],
+
+  // An object that configures minimum threshold enforcement for coverage results
+  // coverageThreshold: undefined,
+
+  // A path to a custom dependency extractor
+  // dependencyExtractor: undefined,
+
+  // Make calling deprecated APIs throw helpful error messages
+  // errorOnDeprecated: false,
+
+  // Force coverage collection from ignored files using an array of glob patterns
+  // forceCoverageMatch: [],
+
+  // A path to a module which exports an async function that is triggered once before all test suites
+  // globalSetup: undefined,
+
+  // A path to a module which exports an async function that is triggered once after all test suites
+  // globalTeardown: undefined,
+
+  // A set of global variables that need to be available in all test environments
+  // globals: {},
+
+  // The maximum amount of workers used to run your tests. Can be specified as % or a number. E.g. maxWorkers: 10% will use 10% of your CPU amount + 1 as the maximum worker number. maxWorkers: 2 will use a maximum of 2 workers.
+  // maxWorkers: "50%",
+
+  // An array of directory names to be searched recursively up from the requiring module's location
+  // moduleDirectories: [
+  //   "node_modules"
+  // ],
+
+  // An array of file extensions your modules use
+  moduleFileExtensions: ['js', 'json', 'jsx', 'ts', 'tsx'],
+
+  // A map from regular expressions to module names or to arrays of module names that allow to stub out resources with a single module
+  moduleNameMapper: {
+    '^.+\\.module\\.(css|sass|scss)$': 'identity-obj-proxy',
+    '^@/(.*)$': '<rootDir>/src/$1',
+    '^@@/(.*)$': '<rootDir>/src/.umi/$1',
+    axios: 'axios/dist/node/axios.cjs',
+  },
+
+  // An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
+  // modulePathIgnorePatterns: [],
+
+  // Activates notifications for test results
+  // notify: false,
+
+  // An enum that specifies notification mode. Requires { notify: true }
+  // notifyMode: "failure-change",
+
+  // A preset that is used as a base for Jest's configuration
+  // preset: undefined,
+
+  // Run tests from one or more projects
+  // projects: undefined,
+
+  // Use this configuration option to add custom reporters to Jest
+  // reporters: undefined,
+
+  // Automatically reset mock state between every test
+  // resetMocks: false,
+
+  // Reset the module registry before running each individual test
+  // resetModules: false,
+
+  // A path to a custom resolver
+  // resolver: undefined,
+
+  // Automatically restore mock state between every test
+  // restoreMocks: false,
+
+  // The root directory that Jest should scan for tests and modules within
+  // rootDir: undefined,
+
+  // A list of paths to directories that Jest should use to search for files in
+  roots: ['<rootDir>/src'],
+
+  // Allows you to use a custom runner instead of Jest's default test runner
+  // runner: "jest-runner",
+
+  // The paths to modules that run some code to configure or set up the testing environment before each test
+  setupFiles: [require.resolve('@umijs/test/helpers/setupFiles/shim')],
+
+  // A list of paths to modules that run some code to configure or set up the testing framework before each test
+  setupFilesAfterEnv: [
+    require.resolve('@umijs/test/helpers/setupFiles/jasmine'),
+  ],
+
+  // The number of seconds after which a test is considered as slow and reported as such in the results.
+  // slowTestThreshold: 5,
+
+  // A list of paths to snapshot serializer modules Jest should use for snapshot testing
+  // snapshotSerializers: [],
+
+  // The test environment that will be used for testing
+  testEnvironment: require.resolve('jest-environment-jsdom-fourteen'),
+
+  // Options that will be passed to the testEnvironment
+  // testEnvironmentOptions: {},
+
+  // Adds a location field to test results
+  // testLocationInResults: false,
+
+  // The glob patterns Jest uses to detect test files
+  testMatch: [
+    '<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}',
+    '<rootDir>/src/**/*.{spec,test}.{js,jsx,ts,tsx}',
+  ],
+
+  // An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
+  testPathIgnorePatterns: ['\\\\node_modules\\\\'],
+
+  // The regexp pattern or array of patterns that Jest uses to detect test files
+  // testRegex: [],
+
+  // This option allows the use of a custom results processor
+  // testResultsProcessor: undefined,
+
+  // This option allows use of a custom test runner
+  // testRunner: "jasmine2",
+
+  // This option sets the URL for the jsdom environment. It is reflected in properties such as location.href
+  // testURL: "http://localhost",
+
+  // Setting this value to "fake" allows the use of fake timers for functions such as "setTimeout"
+  // timers: "real",
+
+  // A map from regular expressions to paths to transformers
+  transform: {
+    '^.+.(js|jsx|ts|tsx)$': require.resolve(
+      '@umijs/test/helpers/transformers/javascript',
+    ),
+    '^.+.(css|less|sass|scss|stylus)$': require.resolve(
+      '@umijs/test/helpers/transformers/css',
+    ),
+    '^(?!.*.(js|jsx|ts|tsx|css|less|sass|scss|stylus|json)$)': require.resolve(
+      '@umijs/test/helpers/transformers/file',
+    ),
+  },
+
+  // An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
+  transformIgnorePatterns: [
+    '[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$',
+    '^.+\\.module\\.(css|sass|scss)$',
+    'node_modules/(?!axios)',
+  ],
+
+  // An array of regexp pattern strings that are matched against all modules before the module loader will automatically return a mock for them
+  // unmockedModulePathPatterns: undefined,
+
+  // Indicates whether each individual test should be reported during the run
+  // verbose: undefined,
+
+  // An array of regexp patterns that are matched against all source file paths before re-running tests in watch mode
+  // watchPathIgnorePatterns: [],
+
+  // Whether to use watchman for file crawling
+  // watchman: true,
+};

mock/todos.ts

+export default {
+    'GET /api/test': { name: 'foo' }
+}
\ No newline at end of file

package.json

+{
+  "private": true,
+  "scripts": {
+    "start": "umi dev",
+    "build": "umi build",
+    "postinstall": "umi generate tmp",
+    "prettier": "prettier --write '**/*.{js,jsx,tsx,ts,less,md,json}'",
+    "test": "jest --watchAll",
+    "test:coverage": "jest --coverage"
+  },
+  "gitHooks": {
+    "pre-commit": "lint-staged"
+  },
+  "lint-staged": {
+    "*.{js,jsx,less,md,json}": [
+      "prettier --write"
+    ],
+    "*.ts?(x)": [
+      "prettier --parser=typescript --write"
+    ]
+  },
+  "dependencies": {
+    "@ant-design/pro-layout": "^6.5.0",
+    "@testing-library/jest-dom": "^5.16.5",
+    "@testing-library/react": "12.1.5",
+    "@types/jest": "^29.4.0",
+    "axios": "^1.3.4",
+    "react": "17.x",
+    "react-dom": "17.x",
+    "umi": "^3.5.36"
+  },
+  "devDependencies": {
+    "@types/react": "^17.0.0",
+    "@types/react-dom": "^17.0.0",
+    "@umijs/preset-react": "1.x",
+    "@umijs/test": "^3.5.36",
+    "identity-obj-proxy": "^3.0.0",
+    "jest-environment-jsdom-fourteen": "^1.0.1",
+    "lint-staged": "^10.0.7",
+    "prettier": "^2.2.0",
+    "ts-node": "^10.9.1",
+    "typescript": "^4.1.2",
+    "yorkie": "^2.0.0"
+  }
+}

src/pages/404.jsx

+import styles from './index.less';
+
+export default function IndexPage() {
+  return (
+    <div>
+      <h1 className={styles.title}>404</h1>
+    </div>
+  );
+}

src/pages/index.less

+.title {
+  background: rgb(121, 242, 157);
+}

src/pages/index.tsx

+import Todolist from './todolist'
+
+export default function IndexPage() {
+  return (
+    <Todolist></Todolist>
+  );
+}

src/pages/todolist/index.less

+.head {
+  display: flex;
+}

src/pages/todolist/index.test.tsx

+import { render, screen, fireEvent } from '@testing-library/react';
+import React from 'react';
+import '@testing-library/jest-dom';
+import Todolist from '.';
+
+it(`
+1. 输入内容
+2. 点击添加
+3. 展示list
+`, async () => {
+  // 渲染组件
+  render(<Todolist />);
+  await fireEvent.change(screen.getByRole('input'), {
+    target: { value: '学习Jest' },
+  });
+  await fireEvent.click(screen.getByRole('button'));
+  expect(screen.getByText(/学习Jest/i)).toBeInTheDocument();
+  await fireEvent.change(screen.getByRole('input'), {
+    target: { value: '学习Jest2' },
+  });
+  await fireEvent.click(screen.getByRole('button'));
+  expect(screen.getByText(/学习Jest2/i)).toBeInTheDocument();
+  expect(screen.getAllByRole('listItem').length).toBe(2);
+});

src/pages/todolist/index.tsx

+import React, { useState } from 'react';
+import { Button, Input } from 'antd';
+import styles from './index.less';
+// import User from '@/pages/user';
+interface InputChangeEvent extends React.ChangeEvent<HTMLInputElement> {}
+
+export default function IndexPage() {
+  const [value, setValue] = useState<string>('');
+  const [list, setList] = useState<string[]>([]);
+
+  const onChange = (e: InputChangeEvent): void => {
+    setValue(e.target.value);
+  };
+
+  const addItem = (): void => {
+    if (value) {
+      const newList = [...list, value];
+      setList(newList);
+      setValue('');
+    }
+  };
+
+  return (
+    <>
+      <div className={styles.head}>
+        <Input type="text" value={value} onChange={onChange} role="input" />
+        <Button type="primary" onClick={addItem} role="button">
+          添加
+        </Button>
+      </div>
+      <div className="list">
+        {list.map((item, index) => (
+          <div className="listItem" key={index} role="listItem">
+            {item}
+          </div>
+        ))}
+      </div>
+
+      {/* <User></User> */}
+    </>
+  );
+}

src/pages/user/index.less

+.title {
+  background: rgb(121, 242, 157);
+}

src/pages/user/index.tsx

+import styles from './index.less';
+import React, { useState } from 'react';
+interface InputElement extends React.ChangeEvent<InputElement> {}
+
+export default function IndexPage() {
+  const [value, setValue] = useState(0);
+  const onChange = (): void => {
+    console.log(value + 1);
+    setValue(value + 1);
+  };
+  return (
+    <div>
+      <h1 className={styles.title}>Page user{value}</h1>
+      <button onClick={onChange}>加一</button>
+    </div>
+  );
+}

src/util/__tests__/__snapshots__/config.test.ts.snap

+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`测试快照 config  1`] = `
+Object {
+  "hot": true,
+  "port": 80,
+  "server": "123",
+}
+`;

src/util/__tests__/config.test.ts

+import { config } from '../config';
+
+it('测试快照 config ', () => {
+    expect(config()).toMatchSnapshot();
+});

src/util/__tests__/demo.test.ts

+import { add, fetchData, returnCallBack, timerCallBack } from '../demo';
+
+it('测试加法： 2+ 2 = 4', () => {
+    expect(add(2, 2)).toBe(4);
+});
+
+// it('测试fetchData', async () => {
+//     await expect(fetchData()).resolves.toMatchObject({
+//         data: {
+//             name: 'foo'
+//         }
+//     })
+// });
+
+it('测试returnCallBack', async () => {
+    const func = jest.fn();
+    returnCallBack(func);
+    expect(func).toBeCalled();
+    expect(func.mock.calls.length).toBe(1);
+
+    const mockFn = jest.fn();
+    mockFn.mockImplementation(() => 36);
+    returnCallBack(mockFn);
+    expect(mockFn.mock.results[0].value).toEqual(36)
+});
+
+
+jest.useFakeTimers();
+it('timerCallBack', async () => {
+    const func = jest.fn();
+    timerCallBack(func);
+    jest.advanceTimersByTime(3000);
+    expect(func).toHaveBeenCalledTimes(1);
+});
\ No newline at end of file

src/util/config.ts

+export const config = () => {
+    return {
+        port: 80,
+        hot: true,
+        server: '123'
+    }
+}
\ No newline at end of file

src/util/demo.ts

+import axios from "axios";
+function add(a: number, b: number): number {
+    return a + b;
+}
+
+function fetchData() {
+    return axios('http://localhost:8000/api/test');
+}
+
+function returnCallBack(fn: Function) {
+    fn();
+}
+
+function timerCallBack(fn:Function){
+    setTimeout(()=>{
+        fn()
+    },3000);
+}
+
+export {
+    add,
+    fetchData,
+    returnCallBack,
+    timerCallBack
+}
\ No newline at end of file

tsconfig.json

+{
+  "compilerOptions": {
+    "target": "esnext",
+    "module": "esnext",
+    "moduleResolution": "node",
+    "resolveJsonModule": true,
+    "importHelpers": true,
+    "jsx": "react-jsx",
+    "esModuleInterop": true,
+    "sourceMap": true,
+    "baseUrl": "./",
+    "strict": true,
+    "paths": {
+      "@/*": ["src/*"],
+      "@@/*": ["src/.umi/*"]
+    },
+    "allowSyntheticDefaultImports": true
+  },
+  "include": [
+    "mock/**/*",
+    "src/**/*",
+    "config/**/*",
+    ".umirc.ts",
+    "typings.d.ts"
+  ],
+  "exclude": [
+    "node_modules",
+    "lib",
+    "es",
+    "dist",
+    "typings",
+    "**/__test__",
+    "test",
+    "docs",
+    "tests"
+  ]
+}

typings.d.ts

+declare module '*.css';
+declare module '*.less';
+declare module '*.png';
+declare module '*.svg' {
+  export function ReactComponent(
+    props: React.SVGProps<SVGSVGElement>,
+  ): React.ReactElement;
+  const url: string;
+  export default url;
+}