const sinon = require('sinon'); const proxyquire = require('proxyquire').noCallThru(); describe('nyc', () => { const cli = sinon.stub(); proxyquire('../tasks/nyc', { 'simple-cli': cli }); it('should callthrough to simple cli', () => { cli.should.have.been.calledWith('nyc', { flags: 'before' }); }); });