Resolving Jest Error with EMFILE Too Many Open Files

Encountering the Jest error EMFILE: Too Many Open Files can disrupt your testing environment. However, you can resolve this issue by making adjustments to your Jest configuration in the jest.config.js file.

To mitigate the 'EMFILE: Too Many Open Files' error, consider adding the following configuration:

// jest.config.js
watchPathIgnorePatterns: [
  '/node_modules/'
]

By implementing this configuration in your jest.config.js file, you instruct Jest to ignore specific paths, such as /node_modules/, reducing the number of open files during testing. This adjustment should help alleviate the EMFILE: Too Many Open Files error, ensuring smoother and uninterrupted testing processes.

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Published 31 Oct 2023