What are Jest snapshots and how do I use them?
An example of an AI chatbot conversation about Jest snapshots and their usage in testing.
What are Jest snapshots and how do I use them?
Jest snapshots are a feature that allows you to test the output of your components by saving a rendered output to a file. You can then compare future outputs to this saved snapshot.
How do I create a snapshot in Jest?
To create a snapshot, you can use the toMatchSnapshot() method in your test. When you run the test, Jest will generate a snapshot file.
Can I update the snapshots if they change?
Yes, if your component's output changes and you want to update the snapshot, you can run Jest with the -u or --updateSnapshot flag.
What are the benefits of using snapshots?
Snapshots help ensure that your UI does not change unexpectedly. They provide a quick way to verify that the output remains consistent.
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