Ignore a specific folder pattern in testMatch with Jest

Question

I'm trying to ignore a specific folder in the testMatch pattern of Jest.

I have my tests in a __tests__ folder and I want to be able to have a folder __config__ into it with all files inside which should be ignored.

/__tests__
  /__config__
    someConfig.jsx
  /MyComponent.jsx
/MyComponent.jsx

My tests in the __tests__ folder will import the files from the __config__ folder so I don't want to ignore them with the transformIgnorePatterns.

But if I don't ignore the folder, Jest tries to run in the folder and returns an error:

FAIL src/components/__tests__/__config__/someConfig.jsx

Your test suite must contain at least one test.

I've tried a few different patterns but I can't find a way to ignore the __config__ folder

testMatch: [
  "**/__tests__/!(__config__)/**/*.(js)?(x)", // Doesn't work
  "**/__tests__/(**|!__config__)/*.(js)?(x)", // Doesn't work
  "**/__tests__/(**|?!__config__)/*.(js)?(x)", // Doesn't work
  "**/__tests__/{**,!__config__}/*.(js)?(x)", // Doesn't work
],

Any idea how I can ignore the sub-folder like this?

Answer 1

Try to use testPathIgnorePatterns, instead.

If the test path matches any of the patterns, it will be skipped.

Use the string token to include the path to your project's root.