What is @types/mocha?
The @types/mocha package provides TypeScript type definitions for Mocha, a popular JavaScript test framework. These type definitions allow developers to use Mocha in TypeScript projects with type checking and IntelliSense support in code editors.
What are @types/mocha's main functionalities?
Describe blocks
TypeScript definitions for Mocha's describe blocks, which are used to group related tests.
describe('Array', () => {
describe('#indexOf()', () => {
it('should return -1 when the value is not present', () => {
assert.equal([1, 2, 3].indexOf(4), -1);
});
});
});
It blocks
TypeScript definitions for Mocha's it blocks, which are used to define individual test cases.
it('should add two numbers', () => {
const sum = add(1, 2);
assert.equal(sum, 3);
});
Hooks
TypeScript definitions for Mocha's hooks like before, after, beforeEach, and afterEach, which are used to set up preconditions and clean up after tests.
describe('hooks', () => {
before(() => {
// runs once before the first test in this block
});
after(() => {
// runs once after the last test in this block
});
beforeEach(() => {
// runs before each test in this block
});
afterEach(() => {
// runs after each test in this block
});
});
Other packages similar to @types/mocha
@types/jest
Provides TypeScript type definitions for Jest, a testing framework with a focus on simplicity. Jest offers a different API and additional features like snapshots and built-in coverage reports compared to Mocha.
@types/jasmine
Provides TypeScript type definitions for Jasmine, a behavior-driven development framework for testing JavaScript code. Jasmine has a slightly different syntax and feature set compared to Mocha.
@types/qunit
Provides TypeScript type definitions for QUnit, a powerful, easy-to-use JavaScript unit testing framework. QUnit has a different API and is used primarily for testing jQuery projects.