Introduction
Getting Started with Jest in Node & Typescript
Jest Fundamentals
Test Doubles Explained : Mocks, Stubs, Spies & More
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Dummy Test Doubles (11:18)
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Getting Started with Stubs and Fakes (9:52)
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Stubs and Fakes in Action (14:55)
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Refactor Challenge (6:04)
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Using Spies in Jest with jest.spyOn() (15:22)
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Clearing and Resetting Mocks in Jest (6:25)
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UserService Testing Setup : Spying with Jest Begins (7:04)
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Jest SpyOn in Action - Successful UserService Response (10:30)
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Simulating Errors with jest.spyOn() in Jest Tests (11:07)
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Mocking Modules with jest.mock() (13:21)
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Mock External Third Party Modules and Node's Built-in Modules (5:20)
How to Test for Thrown Errors in Jest
