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

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.

Note that, instead of

jest --verbose

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

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

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