chai-string

What is chai-string?

chai-string is an extension for the Chai assertion library that provides a set of string-specific assertions. It allows developers to write more readable and expressive tests for string values.

What are chai-string's main functionalities?

startsWith

Asserts that a string starts with a given substring.

const chai = require('chai');
const chaiString = require('chai-string');
chai.use(chaiString);
const expect = chai.expect;

expect('Hello, world!').to.startWith('Hello');

endsWith

Asserts that a string ends with a given substring.

const chai = require('chai');
const chaiString = require('chai-string');
chai.use(chaiString);
const expect = chai.expect;

expect('Hello, world!').to.endWith('world!');

contains

Asserts that a string contains a given substring.

const chai = require('chai');
const chaiString = require('chai-string');
chai.use(chaiString);
const expect = chai.expect;

expect('Hello, world!').to.contain('world');

equalIgnoreCase

Asserts that two strings are equal, ignoring case.

const chai = require('chai');
const chaiString = require('chai-string');
chai.use(chaiString);
const expect = chai.expect;

expect('Hello').to.equalIgnoreCase('hello');

singleLine

Asserts that a string is a single line (i.e., does not contain newline characters).

const chai = require('chai');
const chaiString = require('chai-string');
chai.use(chaiString);
const expect = chai.expect;

expect('Hello, world!').to.be.singleLine;

Other packages similar to chai-string

chai

Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. While chai-string extends Chai with string-specific assertions, Chai itself provides a more general set of assertions for various data types.

jest

Jest is a delightful JavaScript Testing Framework with a focus on simplicity. It includes built-in matchers for string assertions, such as `toMatch` for regex matching and `toContain` for substring checks. However, it does not provide as many specialized string assertions as chai-string.

should

Should is an expressive, readable, framework-agnostic assertion library. It provides some string-specific assertions like `startWith` and `endWith`, similar to chai-string, but it is not as focused on string assertions as chai-string.

README

The README file is missing