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In Win10.64 I'm running the test on the command line with expected results:
>mocha test
Array
#indexOf()
√ should return -1 when the value is not present
1 passing (16ms)
But in Chrome, console error is: Uncaught ReferenceError: require is not defined(anonymous function) @ test.lead-helper.js:1
test.lead-helper.js:
var assert = require("assert");
describe('Array', function() {
describe('#indexOf()', function () {
it('should return -1 when the value is not present', function () {
assert.equal(-1, [1,2,3].indexOf(5));
assert.equal(-1, [1,2,3].indexOf(0));
});
});
});
and the HTML test runner:
<html>
<head>
<meta charset="utf-8">
<title>Mocha Tests</title>
<link href="https://cdn.rawgit.com/mochajs/mocha/2.2.5/mocha.css" rel="stylesheet" />
</head>
<body>
<div id="mocha"></div>
<div id="messages"></div>
<div id="fixtures"></div>
<script src="https://cdn.rawgit.com/jquery/jquery/2.1.4/dist/jquery.min.js"></script>
<script src="https://cdn.rawgit.com/Automattic/expect.js/0.3.1/index.js"></script>
<script src="https://cdn.rawgit.com/mochajs/mocha/2.2.5/mocha.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/chai/3.3.0/chai.js"></script>
<script src="lead-helper.js"></script>
<script>mocha.setup('bdd')</script>
<script src="test/test.lead-helper.js"></script>
<script>
mocha.checkLeaks();
mocha.globals(['jQuery']);
mocha.run();
</script>
</body>
</html>
640
asked Oct 26 '25 19:10
Your code seems to be working at cross-purpose. You load Chai:
<script src="https://cdnjs.cloudflare.com/ajax/libs/chai/3.3.0/chai.js"></script>
which is a full-featured assertion library but then you use require("assert") which seems to be an attempt at loading Node's assert library into your browser. There may be a way to get this to load by using Browserify but I don't see why you'd do that, seeing as you already load Chai, and there is no indication that the rest of your code needs Browserify.
I would just remove the require call and instead have:
var assert = chai.assert;
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