/*

Assert module
http://nodejs.org/docs/v0.4.8/api/assert.html

assert.fail(actual, expected, message, operator)
assert.ok(value, [message])
assert.equal(actual, expected, [message])
assert.notEqual(actual, expected, [message])
assert.deepEqual(actual, expected, [message])
assert.notDeepEqual(actual, expected, [message])
assert.strictEqual(actual, expected, [message])
assert.notStrictEqual(actual, expected, [message])
assert.throws(block, [error], [message])
assert.doesNotThrow(block, [error], [message])
assert.ifError(value)

Expresso:
http://visionmedia.github.com/expresso/

assert.eql() alias of assert.deepEqual()
assert.response() http response utility
assert.includes()
assert.isNull()
assert.isUndefined()
assert.isNotNull()
assert.isDefined()
assert.match()
assert.length()

*/