custom should.js assertion

should.js

// getter assertion
should.Assertion.add('CRAZY', function() {
	this.params = {
		operator: 'to be the string "CRAZY"',
		expected: 'CRAZY',
		showDiff: true
	};

	this.obj.should.equal('CRAZY');
}, true);

// function assertion
should.Assertion.add('HttpCode', function(code) {
	this.params = {
		operator: 'to be HTTP code',
		expected: code,
		showDiff: true
	};

	this.obj.statusCode.should.equal(code);
}, false);

usage.js

var str = 'CRAZY';
var err = {
	statusCode: 403	
};

str.should.be.CRAZY;           // pass
err.should.have.HttpCode(403); // pass
err.should.have.HttpCode(400); // fail