Is there an option to show all test descriptions when I run jest tests?

Question

I'm using jest and enzyme with my create-react-app project. When I run npm test, I get an output that shows the names of the test files that passed but I'd like the output to also include the names of the tests.

Example:

Button.test.js

it ('renders button', () => {     const button = shallow(<Button type="save"/>);     expect(toJson(button)).toMatchSnapshot(); }); 

Right now when I run npm test the output is just:

PASS src/Button.test.js"

and the number of passed and failed tests (when the tests are successful). I would like the output to include "renders button" and any other test descriptions (like how the output looks when an rspec test is run).

Answer 1

From Jest's command-line options docs

--verbose

Display individual test results with the test suite hierarchy.

So running

jest --verbose 

Will print all the names in describe, it, test blocks.
If you're running tests with yarn, you can do

yarn test --verbose 

If you're running tests with npm, you can do

npm test -- --verbose 

If you want to make this default, change your test script in package.json

"test": "react-scripts test --env=jsdom --verbose", 

Now both yarn test and npm test should show all test names.

Answer 2

Note that, instead of

jest --verbose 

you can also set verbose to true in jest.config.js:

// jest.config.js module.exports = {   ...   verbose: true, }