test1.js

var vows = require('vows'),
    assert = require('assert');

// Create a Test Suite
vows.describe('Divide and Multiply').addBatch({
    'when multiplying 2 by 2': {              // Context (batch 1)
        topic: function () { return 2 * 2; },

        'we get four': function (topic) {     // Vow w/Topic arg
            assert.equal (topic, 4);          // Async
        }
    },
    'but when dividing two by two': {         // Context (batch 2)
        topic: function () { return 2 / 2 },

        'we get one': {                       // Sub-Context
            'is not a number': function (topic) {
                assert.equal(topic, 1)
            },
            'is not equal to four': function (topic) {
                assert.notEqual (topic, 4);
            }
        }
    }
}).export(module); // use with testrunner