CodeSampleX

示例

@testing-library/user-event 14.6.1

已验证示例 — npm @testing-library/user-event 14.6.1. contract 在 node 22 · linux debian/x64 · docker 上运行并通过： userEvent.setup initializes a user interaction session…

sha256:56e29d1286de72618502c2096042dc15c59544195d4d5a9cf4c3ef20f8dc2a2b

本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。 提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。 MIT-0

执行证据

声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。

证据依据
签名契约通过
验证回执
1
构建过它的签名密钥
1
声明的环境 linux 24 · ubuntu · glibc 2.39 x64 npm

验证运行环境

环境 契约 阶段 运行日期
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-09-12

案例

HOW
目标
verify pkg:npm/%40testing-library/user-event@14.6.1
包
创建时间
2026-09-12T01:22:51Z

契约

  1. userEvent.setup initializes a user interaction session with configurable options and returns bound event methods
  2. user.click simulates pointer and mouse clicks to trigger click event handlers on buttons
  3. user.dblClick triggers double click events on interactive DOM elements
  4. user.type enters sequential characters into input elements updating value and dispatching input events
  5. user.clear removes existing content from text input elements and updates input value
  6. user.tab advances focus sequentially through focusable DOM elements
  7. user.hover and user.unhover trigger pointerenter and pointerleave transitions
  8. user.selectOptions selects option elements within a select dropdown list

文件

  • .npmrc
  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • test/contract.mjs

下载源代码构件 (tar.gz)

源代码

.npmrc
audit=false
PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify pkg:npm/%40testing-library/user-event@14.6.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40testing-library/user-event@14.6.1

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:e25578f9a03b5593eef2f094bfb2776e3d9f9ffce6706a6fae89dd0a60d2b317","contract":["userEvent.setup initializes a user interaction session with configurable options and returns bound event methods","user.click simulates pointer and mouse clicks to trigger click event handlers on buttons","user.dblClick triggers double click events on interactive DOM elements","user.type enters sequential characters into input elements updating value and dispatching input events","user.clear removes existing content from text input elements and updates input value","user.tab advances focus sequentially through focusable DOM elements","user.hover and user.unhover trigger pointerenter and pointerleave transitions","user.selectOptions selects option elements within a select dropdown list"],"goal":"verify pkg:npm/%40testing-library/user-event@14.6.1","kind":"HOW","packages":["pkg:npm/%40testing-library/user-event@14.6.1"],"schemaVersion":1},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40testing-library/user-event@14.6.1"],"schemaVersion":1,"subject":"pkg:npm/%40testing-library/user-event@14.6.1","verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
{
  "name": "sample-testing-library-user-event",
  "version": "1.0.0",
  "type": "module",
  "private": true,
  "description": "Clean-room verification for @testing-library/user-event",
  "main": "src/index.mjs",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "@testing-library/dom": "10.4.1",
    "@testing-library/user-event": "14.6.1",
    "jsdom": "26.0.0"
  },
  "license": "MIT-0"
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify pkg:npm/%40testing-library/user-event@14.6.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40testing-library/user-event@14.6.1"
  ]
}
src/index.mjs
import userEvent from '@testing-library/user-event';

/**
 * Creates a configured UserEvent instance for interacting with DOM elements.
 *
 * @param {object} [options] - Configuration options for userEvent session
 * @returns {ReturnType<typeof userEvent.setup>} Configured userEvent session instance
 */
export function createUser(options = {}) {
  return userEvent.setup(options);
}

export { userEvent };
export default userEvent;
test/contract.mjs
import { JSDOM } from 'jsdom';
import assert from 'node:assert/strict';

// Setup DOM globals before importing user-event
const dom = new JSDOM('<!doctype html><html><body></body></html>', {
  url: 'http://localhost',
  pretendToBeVisual: true,
});

globalThis.window = dom.window;
globalThis.document = dom.window.document;
globalThis.HTMLElement = dom.window.HTMLElement;
globalThis.Element = dom.window.Element;
globalThis.Node = dom.window.Node;
globalThis.Event = dom.window.Event;
globalThis.UIEvent = dom.window.UIEvent;
globalThis.MouseEvent = dom.window.MouseEvent;
globalThis.KeyboardEvent = dom.window.KeyboardEvent;
globalThis.FocusEvent = dom.window.FocusEvent;
globalThis.PointerEvent = dom.window.PointerEvent;
globalThis.InputEvent = dom.window.InputEvent;
globalThis.HTMLInputElement = dom.window.HTMLInputElement;
globalThis.HTMLButtonElement = dom.window.HTMLButtonElement;
globalThis.HTMLSelectElement = dom.window.HTMLSelectElement;
globalThis.HTMLOptionElement = dom.window.HTMLOptionElement;
globalThis.getComputedStyle = dom.window.getComputedStyle;
globalThis.requestAnimationFrame = dom.window.requestAnimationFrame || ((cb) => setTimeout(cb, 0));
globalThis.cancelAnimationFrame = dom.window.cancelAnimationFrame || ((id) => clearTimeout(id));

const { userEvent, createUser } = await import('../src/index.mjs');

async function runContract() {
  const user = createUser({ document: dom.window.document });

  // 1. userEvent.setup initializes a user interaction session with configurable options and returns bound event methods
  assert.equal(typeof user, 'object', 'user must be an object');
  assert.equal(typeof user.click, 'function', 'user.click must be a function');
  assert.equal(typeof user.dblClick, 'function', 'user.dblClick must be a function');
  assert.equal(typeof user.type, 'function', 'user.type must be a function');
  assert.equal(typeof user.clear, 'function', 'user.clear must be a function');
  assert.equal(typeof user.tab, 'function', 'user.tab must be a function');
  assert.equal(typeof user.hover, 'function', 'user.hover must be a function');
  assert.equal(typeof user.unhover, 'function', 'user.unhover must be a function');
  assert.equal(typeof user.selectOptions, 'function', 'user.selectOptions must be a function');

  // 2. user.click simulates pointer and mouse clicks to trigger click event handlers on buttons
  {
    const button = dom.window.document.createElement('button');
    button.textContent = 'Submit';
    dom.window.document.body.appendChild(button);

    let clickCount = 0;
    button.addEventListener('click', () => {
      clickCount += 1;
    });

    await user.click(button);
    assert.equal(clickCount, 1, 'click event handler should be triggered once');
    dom.window.document.body.removeChild(button);
  }

  // 3. user.dblClick triggers double click events on interactive DOM elements
  {
    const button = dom.window.document.createElement('button');
    dom.window.document.body.appendChild(button);

    let dblClickFired = false;
    button.addEventListener('dblclick', () => {
      dblClickFired = true;
    });

    await user.dblClick(button);
    assert.equal(dblClickFired, true, 'dblclick event handler should be triggered');
    dom.window.document.body.removeChild(button);
  }

  // 4. user.type enters sequential characters into input elements updating value and dispatching input events
  {
    const input = dom.window.document.createElement('input');
    input.type = 'text';
    dom.window.document.body.appendChild(input);

    let inputEvents = 0;
    input.addEventListener('input', () => {
      inputEvents += 1;
    });

    await user.type(input, 'Testing');
    assert.equal(input.value, 'Testing', 'input value should match typed text');
    assert.equal(inputEvents, 'Testing'.length, 'input event should fire for each typed character');
    dom.window.document.body.removeChild(input);
  }

  // 5. user.clear removes existing content from text input elements and updates input value
  {
    const input = dom.window.document.createElement('input');
    input.type = 'text';
    input.value = 'Existing content';
    dom.window.document.body.appendChild(input);

    await user.clear(input);
    assert.equal(input.value, '', 'input value should be cleared');
    dom.window.document.body.removeChild(input);
  }

  // 6. user.tab advances focus sequentially through focusable DOM elements
  {
    const input1 = dom.window.document.createElement('input');
    input1.id = 'first';
    const input2 = dom.window.document.createElement('input');
    input2.id = 'second';
    dom.window.document.body.appendChild(input1);
    dom.window.document.body.appendChild(input2);

    dom.window.document.body.focus();
    await user.tab();
    assert.equal(dom.window.document.activeElement, input1, 'first tab should focus input1');

    await user.tab();
    assert.equal(dom.window.document.activeElement, input2, 'second tab should focus input2');

    dom.window.document.body.removeChild(input1);
    dom.window.document.body.removeChild(input2);
  }

  // 7. user.hover and user.unhover trigger pointerenter and pointerleave transitions
  {
    const box = dom.window.document.createElement('div');
    dom.window.document.body.appendChild(box);

    let pointerEnterCount = 0;
    let pointerLeaveCount = 0;
    box.addEventListener('pointerenter', () => {
      pointerEnterCount += 1;
    });
    box.addEventListener('pointerleave', () => {
      pointerLeaveCount += 1;
    });

    await user.hover(box);
    assert.equal(pointerEnterCount, 1, 'pointerenter should fire upon hover');

    await user.unhover(box);
    assert.equal(pointerLeaveCount, 1, 'pointerleave should fire upon unhover');

    dom.window.document.body.removeChild(box);
  }

  // 8. user.selectOptions selects option elements within a select dropdown list
  {
    const select = dom.window.document.createElement('select');
    const optA = dom.window.document.createElement('option');
    optA.value = 'A';
    optA.textContent = 'Option A';
    const optB = dom.window.document.createElement('option');
    optB.value = 'B';
    optB.textContent = 'Option B';

    select.appendChild(optA);
    select.appendChild(optB);
    dom.window.document.body.appendChild(select);

    await user.selectOptions(select, 'B');
    assert.equal(select.value, 'B', 'select value should be Option B');
    assert.equal(optB.selected, true, 'Option B should be selected');

    dom.window.document.body.removeChild(select);
  }

  console.log('Contract tests passed successfully.');
}

await runContract();

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