79664404

Date: 2025-06-13 06:05:49
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To fix the dynamic class generation in Next Js 15.

We have created a file style.js in the location mocks\styled-jsx\style.js & mentioned the below code:

function StyleMock() {
  return null
}

// Add the static dynamic method expected by styled-jsx
StyleMock.dynamic = () => ''

export default StyleMock

& define the path under moduleNameMapper in jest.config.js i.e.

moduleNameMapper: {
    '^styled-jsx/style$': '<rootDir>/__mocks__/styled-jsx/style.js',
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Posted by: Nishant Pandya