React Testing

Unit test cases for UI built using React are written using the Jest framework and the Enzyme library.

There are two types of test cases:

• Snapshot Testing: Snapshot tests are a very useful tool whenever you want to make sure your UI does not change unexpectedly. A typical snapshot test case renders a UI component, takes a snapshot, then compares it to a reference snapshot file stored alongside the test.

• Component test: These tests are useful to test the functionality of your react components. For example, to test on a button click, your code is working as expected.

Commands to be used to run test cases:

Command	Description
npm test	To run test cases
npm test -- --coverage	To run test cases with coverage