Should js Cannot read property 'should' of null

Question

i try to use the testing tool mocha in node. Consider the following test scenario

var requirejs = require('requirejs');  requirejs.config({     //Pass the top-level main.js/index.js require     //function to requirejs so that node modules     //are loaded relative to the top-level JS file.     nodeRequire: require });   describe('Testing controller', function () {      it('Should be pass', function (done) {             (4).should.equal(4);             done();     });      it('Should avoid name king', function (done) {         requirejs(['../server/libs/validate_name'], function (validateName) {             var err_test, accountExists_test, notAllow_test, available_test;             validateName('anu', function (err, accountExists, notAllow, available) {                 accountExists.should.not.be.true;                 done();             });          });     });  });   

as a testing result i have got:

$ make test ./node_modules/.bin/mocha \                 --reporter list    . Testing controller Should be pass: 0ms   1) Testing controller Should avoid name anu    1 passing (560 ms)   1 failing    1) Testing controller Should avoid name anu:      Uncaught TypeError: Cannot read property 'should' of null       at d:\townspeech\test\test.spec.js:23:30       at d:\townspeech\server\libs\validate_name.js:31:20       at d:\townspeech\test\test.spec.js:22:13       at Object.context.execCb (d:\townspeech\node_modules\requirejs\bin\r.js:1869:33)       at Object.Module.check (d:\townspeech\node_modules\requirejs\bin\r.js:1105:51)       at Object.Module.enable (d:\townspeech\node_modules\requirejs\bin\r.js:1376:22)       at Object.Module.init (d:\townspeech\node_modules\requirejs\bin\r.js:1013:26)       at null._onTimeout (d:\townspeech\node_modules\requirejs\bin\r.js:1646:36)       at Timer.listOnTimeout [as ontimeout] (timers.js:110:15)    make: *** [test] Error 1 

The first pass without any complication but the second, it seems like, that could not attach module shouldjs. Why?

Answer 1

I had the same problem. I solved it by using:

(err === null).should.be.true;