Explore the role of test doubles in isolating code units during testing. Learn about different types like dummies, fakes, stubs, spies, and mocks, and their practical applications in JavaScript and TypeScript.
Explore comprehensive techniques for implementing mocks and stubs in JavaScript and TypeScript using libraries like Sinon.js and Jest. Learn how to create robust, type-safe tests with examples and best practices.
Explore the intricacies of testing asynchronous code in JavaScript and TypeScript using mocks and stubs. Learn best practices, tools, and techniques to ensure reliable and maintainable tests for asynchronous operations.
Explore advanced mocking techniques, including partial mocks, mocking private methods, and using tools like proxyquire or rewire. Learn best practices for organizing mock code, managing test dependencies, and balancing real implementations with mocks.