'Test-driven Development: How to Write Unit Tests' unittesting softwaredevelopment
Usually, in JavaScript projects, you’ll use some testing library, such as:But those are just tools. What matters is that you have some way of automatically validating your application.It’s a fast and reliable way of checking whether the code works as expected. You don’t have to think about edge cases to have all of them covered by unit tests.
Good test coverage is a safety net that allows you to refactor code with more courage. Thus, you’re more likely to take the necessary steps to keep your codebase in good shape.tests forces you to think about units—and how the responsibility should be spent between them, making your code more modular and easier to maintain.
Unit tests can make you a faster coder. At first, you have to invest time in creating the test case, but once it’s ready, you can rerun it very cheaply. The investment can pay dividends even during the initial development.. Install the testing library and set up your testing script. Once you have something running, you can start setting up scaffolding for some of your tests. You need to decide on a naming convention.
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