var less = require('../lib/less'), fs = require('fs') var input = fs.readFileSync("./test/less/modifyVars/extended.less", 'utf8') var expectedCss = fs.readFileSync('./test/css/modifyVars/extended.css', 'utf8') var options = { modifyVars: JSON.parse(fs.readFileSync("./test/less/modifyVars/extended.json", 'utf8')) } less.render(input, options, function (err, result) { if (err) console.log(err); if (result.css === expectedCss) { console.log("PASS") } else { console.log("FAIL") } })