Files
hudozka/node_modules/should/lib/ext/assert.js
T
2014-02-12 12:36:59 +04:00

57 lines
1.2 KiB
JavaScript

/*!
* Should
* Copyright(c) 2010-2014 TJ Holowaychuk <tj@vision-media.ca>
* MIT Licensed
*/
var util = require('../util')
, assert = require('assert')
, AssertionError = assert.AssertionError;
module.exports = function(should) {
var i = should.format;
/**
* Expose assert to should
*
* This allows you to do things like below
* without require()ing the assert module.
*
* should.equal(foo.bar, undefined);
*
*/
util.merge(should, assert);
/**
* Assert _obj_ exists, with optional message.
*
* @param {*} obj
* @param {String} [msg]
* @api public
*/
should.exist = should.exists = function(obj, msg) {
if(null == obj) {
throw new AssertionError({
message: msg || ('expected ' + i(obj) + ' to exist'), stackStartFunction: should.exist
});
}
};
/**
* Asserts _obj_ does not exist, with optional message.
*
* @param {*} obj
* @param {String} [msg]
* @api public
*/
should.not = {};
should.not.exist = should.not.exists = function(obj, msg) {
if(null != obj) {
throw new AssertionError({
message: msg || ('expected ' + i(obj) + ' to not exist'), stackStartFunction: should.not.exist
});
}
};
};