expect-element

library1.1.1jsnpmunverified

expect-element is an extension for the expect assertion library that provides DOM-specific assertions for testing DOM nodes. Current stable version is 1.1.1, released under the MIT license. It adds assertions like toHaveAttribute, toHaveText, etc. This package is lightweight, requires expect as a peer dependency, and is designed for unit testing in browser or jsdom environments. It is not actively maintained (last release in 2016). Compared to alternatives like jest-dom, expect-element is simpler but lacks TypeScript support and modern updates.

testing

npm install expect-element

github ↗package ↗

INSTALL

IMPORT

SIG · EXPECT-ELEMENT

expect-element

testingjavascriptv1.1.1

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

expectElement

✓ import expectElement from 'expect-element'

✗ const { expectElement } = require('expect-element')

Default import; named import does not exist.

expect

✓ import expect from 'expect'

✗ import { expect } from 'expect'

expect is a default export, not named.

expectElement (via UMD)

✓ const expectElement = window.expectElement

UMD build available on npmcdn; attaches to window.

Demonstrates basic setup and usage of expect-element with DOM assertions.

import expect from 'expect'; import expectElement from 'expect-element'; expect.extend(expectElement); // Create a DOM element document.body.innerHTML = '<div id="foo" class="bar">Hello</div>'; const el = document.getElementById('foo'); // Assertions expect(el).toHaveAttribute('id', 'foo'); expect(el).toHaveText('Hello'); expect(el).toNotHaveAttribute('style');

Debug

Known issues

deprecatedThis package is no longer actively maintained. The last release was in 2016.

fix

Consider using jest-dom or @testing-library/jest-dom for modern DOM assertions.

affects: >=1.0.0

gotchaMust call expect.extend(expectElement) before using assertions; otherwise no custom matchers.

fix

import expectElement from 'expect-element'; expect.extend(expectElement);

affects: >=1.0.0

gotchaexpect package version must be ^1.15.1. Using a different major version may break.

fix

Ensure expect@^1.15.1 is installed.

affects: >=1.0.0

Errors

Common errors & fixes

Cannot find module 'expect-element'

Package not installed or npm install missing expect-element.

fix

npm install expect expect-element

expect(...).toHaveAttribute is not a function

Did not call expect.extend(expectElement) before using matchers.

fix

import expectElement from 'expect-element'; expect.extend(expectElement);

Upgrade

Version history

1.1.1latest on npm

Audit

Dependencies

expectrequiredPeer dependency; expect-element extends expect with DOM-specific assertions.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/mjackson/expect-element ↗

packagehttps://www.npmjs.com/package/expect-element ↗