js-crc32/test.js

/* vim: set ts=2: */
var X;
if(typeof require !== 'undefined') {
	assert = require('assert');
	describe('source',function(){it('should load',function(){X=require('./');});});
	bits = require('./misc/bits.js');
	crc32table = require('./misc/table.js');
} else { X = CRC32; }

describe('crc32 table', function() {
	it('should match fixed table', function() {
		var badness = 0;
		for(var i = 0; i != crc32table.length; ++i) {
			assert.equal(crc32table[i]|0, X.table[i]);
			if(crc32table[i] !== X.table[i]) ++badness;
		}
		assert.equal(badness, 128);
	});
});

describe('crc32 bits', function() {
	bits.forEach(function(i) {
		var l = i[0].length;
		var msg = i[0];
		if(l > 20) msg = i[0].substr(0,5) + "...(" + l + ")..." + i[0].substr(-5);
		it(msg, function() {
			if(i[2] === 1) assert.equal(X.bstr(i[0]), i[1]|0);
			assert.equal(X.str(i[0]), i[1]|0);
			if(typeof Buffer !== 'undefined') assert.equal(X.buf(new Buffer(i[0])), i[1]|0);
		});
	});
});