only-changed-jest-watch-plugin/example/a.js

Jest watch plugin for running either only the modified test (for TDD), or tests of dependant modules

const { testFnOne } = require('./b');
const { testFnTwo } = require('./c');

const testFnThree = (x, y) => {
    return [testFnOne(x, y), testFnTwo(x, y)];
}

module.exports = testFnThree;