how to Cover import statement in jest

Question

how to covered unit test on import module . tried "transformIgnorePatterns" and "coveragePathIgnorePatterns" to ignore it but its not working

Answer 1

In the Jest configuration, in the variable collectCoverageFrom, use a negative entry:

collectCoverageFrom: [
    '<rootDir>/**/*.ts',
    '!<rootDir>/**/*.interface.ts',
    '!<rootDir>/**/*.module.ts',
    '!<rootDir>/**/__mock__/*',
],