What are Jest snapshots and how do I use them?
An example of an AI chatbot conversation about Jest snapshots for testing React components.
What are Jest snapshots and how do I use them?
Jest snapshots are a feature in Jest that allows you to test the rendered output of your components. They help ensure that your UI does not change unexpectedly.
How do I create a snapshot test in Jest?
To create a snapshot test, you can use the toMatchSnapshot() method in your test file. For example, after rendering your component, you would call expect(component).toMatchSnapshot();.
Can I update snapshots if they change?
Yes, if your component's output changes intentionally, you can update the snapshots by running Jest with the -u flag or --updateSnapshot.
What are the benefits of using snapshot testing?
Snapshot testing helps catch UI changes, ensures consistency, and simplifies the testing process for React components.
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