In this article, we’ll look at what is the difference between ‘it’ and ‘test’ in Jest.

What is the difference between ‘it’ and ‘test’ in Jest?

it and test are the same since it is an alias of test according to https://jestjs.io/docs/api#testname-fn-timeout

They exist to make the code read like English.

For instance, we write:

describe('yourModule', () => {
  test('if it does this thing', () => {});
  test('if it does the other thing', () => {});
});

or

describe('yourModule', () => {
  it('should do this thing', () => {});
  it('should do the other thing', () => {});
});

and they do the same thing.

Conclusion

it and test are the same since it is an alias of test according to https://jestjs.io/docs/api#testname-fn-timeout

They exist to make the code read like English.