Quick article to help look at the right place when configuring your tests in Jest.

Default test files location

The first time I read through the configuration I thought that the paths to my tests were configured using testPathDirs . It turns out that this property is only used to restraint the places Jest will look for tests to sub modules.

The important thing to note is that by default:

Jest will look for ’js and .jsx files inside of __tests__ folders.

Use a custom location

This is the default that needs to change. To do so, use testRegex.

For example, if you want to store all your test files inside a ./tests folder, the only jest configuration option you are going to need is:

“jest”: {
"testRegex": "tests/.*\\.(js|jsx)$"