testing
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Again, we’ll be continuing the series on Jest testing today – it’s been a while since I’ve written a post here, so sorry about that! Today I’m going to try to explain mocks, which could be interesting(!) Mocks When you test things, you often want to provide a “fake” version of some functionality, rather than…
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In part 3, the focus is on utilizing unit tests by employing spies to monitor function calls without requiring access to their internal workings. The example provided demonstrates how to verify that a function, setAriaHidden, correctly adds the “aria-hidden” attribute using Jest for testing and spying. Further discussions on mocks and stubs are planned.
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The content discusses the fundamentals of unit testing, specifically the steps of Arrange, Act, and Assert. It provides a simple example using the `add` function and demonstrates how to write a corresponding test using Jest. The author plans to explore advanced features in future content. Comments and feedback are welcomed.
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Unit testing is essential for ensuring expected behaviors in web applications. The article introduces Jest, a popular framework for JavaScript unit testing. It explains project setup with yarn and Jest, highlighting the choice of jsdom test environment. Babel setup is also detailed with necessary dependencies and configuration. Detailed steps are provided for thorough comprehension.
Dave the IT Guy 