chai plugins

chai.assert.notInclude.coffee

((plugin) ->
  # Module systems magic dance.
	if (typeof require == "function" && typeof exports == "object" && typeof module == "object")
		# NodeJS
		module.exports = plugin
	else if (typeof define == "function" && define.amd)
		# AMD
		define -> plugin
	else
		# Other environment (usually <script> tag): plug in to global chai instance directly.
		chai.use plugin
)(
	(chai, utils) ->
		utils.addMethod(chai.assert, 'notInclude', ((haystack, needle) ->
			chai.assert(
				typeof haystack.indexOf is 'function' and haystack.length?
				'expected first parameter to be an Array or String, but it wasn\'t'
				'expected first parameter to be an Array or String, and it was'
			)
			chai.assert(
				haystack.indexOf(needle) is -1
				'expected [' + haystack + '] not to include ' + needle + ', but it did'
				'expected [' + haystack + '] not to include ' + needle + ', and it didn\'t'
			)
		))
)