ReferenceError: can't find variable x when usi

I'm using yeoman, grunt, mocha. I want to do BDD so I make basic unit test and run grunt test in console, which gives me ReferenceError: can't find variable: Creature opening test/index.html in browser works as it should.

This is my creature.js file in app/scripts:

'use strict';
var Creature = (function () {
    function Creature(name) {
        this.name = name;
    }
    Creature.prototype.sayHello = function (message) {
        return this.name + ' ' + message;
    };
    Creature.prototype.eat = function (item){
        return this.name + ' is eating ' + item;
    }
    return Creature;
})();

This is my test/index.html

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <title>Mocha Spec Runner</title>
    <link rel="stylesheet" href="bower_components/mocha/mocha.css">
</head>
<body>
    <div id="mocha"></div>
    <script src="bower_components/mocha/mocha.js"></script>
    <script>mocha.setup('bdd')</script>
    <script src="bower_components/chai/chai.js"></script>
    <script>
        var assert = chai.assert;
        var expect = chai.expect;
        var should = chai.should();
    </script>

    <!-- include source files here... -->
    <script src="../app/scripts/creature.js"></script>
    <!-- include spec files here... -->
    <script src="spec/test.js"></script>

    <script>mocha.run()</script>
</body>
</html>

This is my test/spec/test.js file:

/* global describe, it */

(function () {
    'use strict';

    describe('Creature', function () {
        describe('Comunnications', function () {
            it('should say <name> hi', function () {
                var creature = new Creature('test');
                expect(creature.sayHello('hi')).to.equal('test hi');
            });
            it('should say <name> is eating <item>', function () {
                var creature = new Creature('test');
                expect(creature.eat('pear')).to.equal('test is eating pear');
            });
        });
    });
})();

Console log:

Running "copy:styles" (copy) task

Done, without errors.

Running "autoprefixer:dist" (autoprefixer) task

Running "connect:test" (connect) task
Started connect web server on http://localhost:9001

Running "mocha:all" (mocha) task
Testing: http://localhost:9001/index.html

  ..

  0 passing (113ms)
  2 failing

  1) Creature Comunnications should say <name> hi:
     ReferenceError: Can't find variable: Creature
      at http://localhost:9001/spec/test.js:9
      at http://localhost:9001/bower_components/mocha/mocha.js:4263
      at http://localhost:9001/bower_components/mocha/mocha.js:4635
      at http://localhost:9001/bower_components/mocha/mocha.js:4694
      at next (http://localhost:9001/bower_components/mocha/mocha.js:4561)
      at http://localhost:9001/bower_components/mocha/mocha.js:4570
      at next (http://localhost:9001/bower_components/mocha/mocha.js:4514)
      at http://localhost:9001/bower_components/mocha/mocha.js:4538
      at timeslice (http://localhost:9001/bower_components/mocha/mocha.js:5531)

  2) Creature Comunnications should say <name> is eating <item>:
     ReferenceError: Can't find variable: Creature
      at http://localhost:9001/spec/test.js:13
      at http://localhost:9001/bower_components/mocha/mocha.js:4263
      at http://localhost:9001/bower_components/mocha/mocha.js:4635
      at http://localhost:9001/bower_components/mocha/mocha.js:4694
      at next (http://localhost:9001/bower_components/mocha/mocha.js:4561)
      at http://localhost:9001/bower_components/mocha/mocha.js:4570
      at next (http://localhost:9001/bower_components/mocha/mocha.js:4514)
      at http://localhost:9001/bower_components/mocha/mocha.js:4538
      at timeslice (http://localhost:9001/bower_components/mocha/mocha.js:5531)


>> 2/2 tests failed (0.11s)
Warning: Task "mocha:all" failed. Use --force to continue.

Aborted due to warnings.


Execution Time (2014-06-08 14:40:23 UTC)
concurrent:test     3s  ■■■■■■■■■■■■■■■ 32%
connect:test     447ms  ■■■ 5%
mocha:all         5.9s  ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ 63%
Total 9.4s

Perhaps it has to do with the reference to ../app/scripts/creature.js when running through phantomjs it has a different path compared to using it in a real browser?

EDIT

It seems like grunt test opens the wrong path to test on. It seems to open root/index.html When it opens... I got it to work by changing the path to the creature.js (removed the app/)

<!-- include source files here... -->
<script src="../scripts/creature.js"></script>

However when running grunt test it now works, but opening the test/index.html file it now gives me the error ReferenceError: Creature is not defined in firebug console.

Do I do something wrong or is that de correct behaviour? Anything I can do to make it work both ways?

I discovered where the issue was by changing the gruntfile.js changed test:options:open to true.

// The actual grunt server settings


connect: {
        options: {
            port: 9000,
            open: true,
            livereload: 35729,
            // Change this to '0.0.0.0' to access the server from outside
            hostname: 'localhost'
        },
        livereload: {
            options: {
                ...
            }
        },
        test: {
            options: {
                open: false,
                port: 9001,
                middleware: function(connect) {
                    return [
                        connect.static('.tmp'),
                        connect.static('test'),
                        connect().use('/bower_components', connect.static('./bower_components')),
                        connect.static(config.app)
                    ];
                }
            }
        },
        dist: {
            ...
            }
        }
    }

Thanks in advance!

标签： javascript unit-testing gruntjs mocha yeoman

3条回答

狗以群分

2楼-- · 2019-07-18 11:37

Have you tried putting

<script src="../app/scripts/creature.js"></script>

before

<script src="bower_components/mocha/mocha.js"></script>

It looks like the var isn't defined and probably what volkinc was after with his response.

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做自己的国王

3楼-- · 2019-07-18 11:38

probably you call

<script>mocha.run()</script>

when DOM is not ready yet try this

<script>
if( document.readyState === "complete" ) {
   var creature = new Creature('test'); 
   alert(creature .name);
   //mocha.run()
}
</script>

or with jQuery

$(function() {
var creature = new Creature('test'); 
   alert(creature .name);
   //mocha.run()
});

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ReferenceError: can't find variable x when usi

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