ReferenceError : describe가 정의되지 않은 NodeJ

ReferenceError : describe가 정의되지 않은 NodeJ

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일부 엔드 포인트를 정의하고을 사용하여 테스트를 수행하려고합니다 nodejs. 에서 server.jsI 있습니다 :

var express = require('express');
var func1 = require('./func1.js');
var port = 8080;
var server = express();

server.configure(function(){
  server.use(express.bodyParser());
});

server.post('/testend/', func1.testend);

그리고 func1.js:

    var testend = function(req, res) {
           serialPort.write("1", function(err, results) {
           serialPort.write("2" + "\n", function(err, results) {
           });
      });
   });
    exports.testend = testend;

이제이 test.js엔드 포인트를 사용하려고합니다.

var should = require('should');
var assert = require('assert');
var request = require('supertest');
var http = require('http');
var app = require('./../server.js');
var port = 8080;

describe('Account', function() {
        var url = "http://localhost:" + port.toString();
        it('test starts', function(done) {
                request(url).post('/testend/')
                // end handles the response
                .end(function(err, res) {
                        if (err) {
                                throw err;
                        }
                        res.body.error.should.type('string');
                        done();
                });
        });
});

그러나 내가 실행할 node test.js때이 오류가 발생합니다 :

describe ( '계정', 함수 () {
^

ReferenceError : 설명이 정의되지 않았습니다
    객체에서. (/test/test.js:9:1)
    Module._compile (module.js : 456 : 26)에서
    Object.Module._extensions..js에서 (module.js : 474 : 10)
    Module.load (module.js : 356 : 32)에서
    Function.Module._load에서 (module.js : 312 : 12)
    Function.Module.runMain에서 (module.js : 497 : 10)
    시작할 때 (node.js : 119 : 16)
    node.js : 906 : 3에서

문제를 어떻게 해결할 수 있습니까?

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Assuming you are testing via mocha, you have to run your tests using the mocha command instead of the node executable.

So if you haven't already, make sure you do npm install mocha -g. Then just run mocha in your project's root directory.

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if you are using vscode, want to debug your files

I used tdd before, it throw ReferenceError: describe is not defined

But, when I use bdd, it works!

waste half day to solve it....

    {
      "type": "node",
      "request": "launch",
      "name": "Mocha Tests",
      "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
      "args": [
        "-u",
        "bdd",// set to bdd, not tdd
        "--timeout",
        "999999",
        "--colors",
        "${workspaceFolder}/test/**/*.js"
      ],
      "internalConsoleOptions": "openOnSessionStart"
},

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To run tests with node/npm without installing Mocha globally, you can do this:

• Install Mocha locally to your project (npm install mocha --save-dev)

• Optionally install an assertion library (npm install chai --save-dev)

• In your package.json, add a section for scripts and target the mocha binary

"scripts": {
  "test": "node ./node_modules/mocha/bin/mocha"
}

• Put your spec files in a directory named /test in your root directory

• In your spec files, import the assertion library

var expect = require('chai').expect;

• You don't need to import mocha, run mocha.setup, or call mocha.run()

• Then run the script from your project root:

npm test

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You can also do like this:

  var mocha = require('mocha')
  var describe = mocha.describe
  var it = mocha.it
  var assert = require('chai').assert

  describe('#indexOf()', function() {
    it('should return -1 when not present', function() {
      assert.equal([1,2,3].indexOf(4), -1)
    })
  })

Reference: http://mochajs.org/#require

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OP asked about running from node not from mocha. This is a very common use case, see Using Mocha Programatically

This is what injected describe and it into my tests.

mocha.ui('bdd').run(function (failures) {
    process.on('exit', function () {
      process.exit(failures);
    });
  });

I tried tdd like in the docs, but that didn't work, bdd worked though.

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i have this error when using "--ui tdd". remove this or using "--ui bdd" fix problem.

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Use any Javascript testing framework to run it

npm install jest -g
jest ./**/**/demo.spec.js

npm install mocha -g
mocha ./**/**/demo.spec.js

npm install jasmine-node -g
jasmine-node ./**/**/demo.spec.js

참고URL : https://stackoverflow.com/questions/28400459/referenceerror-describe-is-not-defined-nodejs