Mastering Jest Testing with TypeScript and Node.js
Learn how to confidently test your Node.js apps using Jest and TypeScript. This course covers everything from writing your first test to working with mocks, spies, and error handling. You’ll test real functions, classes, and async code — all with practical, real-world examples.
Example Curriculum
Introduction
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Info
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Getting Started with Jest in Node & Typescript
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Jest Fundamentals
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Test Doubles Explained : Mocks, Stubs, Spies & More
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- Dummy Test Doubles (11:18)
- Getting Started with Stubs and Fakes (9:52)
- Stubs and Fakes in Action (14:55)
- Refactor Challenge (6:04)
- Using Spies in Jest with jest.spyOn() (15:22)
- Clearing and Resetting Mocks in Jest (6:25)
- UserService Testing Setup : Spying with Jest Begins (7:04)
- Jest SpyOn in Action - Successful UserService Response (10:30)
- Simulating Errors with jest.spyOn() in Jest Tests (11:07)
- Mocking Modules with jest.mock() (13:21)
- Mock External Third Party Modules and Node's Built-in Modules (5:20)
How to Test for Thrown Errors in Jest
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