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Oct 22, 2025
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Javascript Testing Basics: Update jest globals/ESLint setup info #30233

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update jest globals/ESLint setup info
ToastedGMS Oct 9, 2025
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Update javascript/testing_javascript/testing_basics.md
ToastedGMS Oct 22, 2025
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2 changes: 1 addition & 1 deletion javascript/testing_javascript/testing_basics.md
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Expand Up @@ -20,7 +20,7 @@ This section contains a general overview of topics that you will learn in this l

1. Read about the [basic process and the benefits of TDD](https://web.archive.org/web/20211123190134/http://godswillokwara.com/index.php/2016/09/09/the-importance-of-test-driven-development/).
1. Watch at least the first 3 videos of [the Unit Testing in JavaScript video series](https://www.youtube.com/playlist?list=PL0zVEGEvSaeF_zoW9o66wa_UCNE3a7BEr).
1. Follow along to [Jest's Getting Started tutorial](https://jestjs.io/docs/getting-started). For the upcoming testing practice and project, you only need to follow the instructions for installing jest.
1. Follow along to [Jest's Getting Started tutorial](https://jestjs.io/docs/getting-started) until you reach the "Additional Configuration" section. Jest also provides global variables like `test` and `expect`, but if you're using ESLint, you'll need to explicitly import these in your test files to prevent linting errors (see the "Using ESLint" section in the same tutorial).
1. Read and follow the [Using Matchers](https://jestjs.io/docs/using-matchers) document on the main Jest website. This one demonstrates some of the other useful functions you can use in your tests.
1. This article explains more about [the why/how and value behind TDD](https://jrsinclair.com/articles/2016/one-weird-trick-that-will-change-the-way-you-code-forever-javascript-tdd/) and also includes some great examples of how to apply it.

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