source: Dev/trunk/src/client/dojox/encoding/tests/bits.js

define(['doh', '../bits'], function(doh, dcb){
        var msg1 = "The rain in Spain falls mainly on the plain.";
        var msg2 = "The rain in Spain falls mainly on the plain.1";
        var msg3 = "The rain in Spain falls mainly on the plain.ab";
        var msg4 = "The rain in Spain falls mainly on the plain.!@#";
        
        var s2b = function(s){
                var b = [];
                for(var i = 0; i < s.length; ++i){
                        b.push(s.charCodeAt(i));
                }
                return b;
        };

        var b2s = function(b){
                var s = [];
                dojo.forEach(b, function(c){ s.push(String.fromCharCode(c)); });
                return s.join("");
        };
        
        var testOut = function(msg){
                var a = new dcb.OutputStream();
                for(var i = 0; i < msg.length; ++i){
                        var v = msg.charCodeAt(i);
                        var j = Math.floor(Math.random() * 7) + 1;
                        a.putBits(v >>> (8 - j), j);
                        a.putBits(v, 8 - j);
                }
                return b2s(a.getBuffer());
        };

        var testIn = function(msg){
                var a = new dcb.InputStream(s2b(msg), msg.length * 8);
                var r = [];
                for(var i = 0; i < msg.length; ++i){
                        var j = Math.floor(Math.random() * 7) + 1;
                        r.push((a.getBits(j) << (8 - j)) | a.getBits(8 - j));
                }
                return b2s(r);
        };
        
        var test = function(msg){
                var a = new dcb.InputStream(s2b(msg), msg.length * 8);
                var o = new dcb.OutputStream();
                while(a.getWidth() > 0){
                        var w = Math.min(a.getWidth(), 3);
                        o.putBits(a.getBits(w), w);
                }
                return b2s(o.getBuffer());
        };

        doh.register("dojox.encoding.tests.bits", [
                function testBitsOut1(t){ t.assertEqual(msg1, testOut(msg1)); },
                function testBitsOut2(t){ t.assertEqual(msg2, testOut(msg2)); },
                function testBitsOut3(t){ t.assertEqual(msg3, testOut(msg3)); },
                function testBitsOut4(t){ t.assertEqual(msg4, testOut(msg4)); },
                function testBitsIn1(t){ t.assertEqual(msg1, testIn(msg1)); },
                function testBitsIn2(t){ t.assertEqual(msg2, testIn(msg2)); },
                function testBitsIn3(t){ t.assertEqual(msg3, testIn(msg3)); },
                function testBitsIn4(t){ t.assertEqual(msg4, testIn(msg4)); },
                function testBits1(t){ t.assertEqual(msg1, test(msg1)); },
                function testBits2(t){ t.assertEqual(msg2, test(msg2)); },
                function testBits3(t){ t.assertEqual(msg3, test(msg3)); },
                function testBits4(t){ t.assertEqual(msg4, test(msg4)); }
        ]);
});