var chai = require('chai'); var expect = chai.expect; var request = require('supertest'); var app; function validation(req, res) { req.sanitizeBody('testparam').whitelist(['a', 'b', 'c']); res.send({ body: req.body }); } function pass(body) { expect(body).to.have.deep.property('body.testparam', 'abc'); } function fail(body) { expect(body).to.not.have.property('body', 'testparam'); } function postRoute(path, data, test, done) { request(app) .post(path) .send(data) .end(function(err, res) { test(res.body); done(); }); } // This before() is required in each set of tests in // order to use a new validation function in each file before(function() { delete require.cache[require.resolve('./helpers/app')]; app = require('./helpers/app')(validation); }); describe('#sanitizeBody', function() { describe('POST tests', function() { it('should return property and sanitized value when body param is present', function(done) { postRoute('/', { testparam: ' abcdf ' }, pass, done); }); it('should not return property when body param is missing', function(done) { postRoute('/', null, fail, done); }); }); });