strong-cached-install Overview Strong-cached-install speeds up npm install in your tests by caching the content of node_modules and using plain cp -r on subsequent runs. Installation $ npm install strong-cached-install Usage var path = require('path');var install = require('strong-cached-install'); describe('my yo generator', function() { before(resetSandbox); before(runGeneratorInSandbox); before(function installDependencies(done) { var appDir = SANDBOX; var cacheDir = path.resolve(__dirname, '.pkgcache'); install(appDir, cacheDir, done); } // and the tests});