git.pond.sub.org Git - eow/blob - static/dojo-release-1.1.1/dojox/encoding/tests/bits.js

   1 if(!dojo._hasResource["dojox.encoding.tests.bits"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
   2 dojo._hasResource["dojox.encoding.tests.bits"] = true;
   3 dojo.provide("dojox.encoding.tests.bits");
   4 dojo.require("dojox.encoding.bits");
   5
   6 (function(){
   7         var msg1 = "The rain in Spain falls mainly on the plain.";
   8         var msg2 = "The rain in Spain falls mainly on the plain.1";
   9         var msg3 = "The rain in Spain falls mainly on the plain.ab";
  10         var msg4 = "The rain in Spain falls mainly on the plain.!@#";
  11         var dcb = dojox.encoding.bits;
  12
  13         var s2b = function(s){
  14                 var b = [];
  15                 for(var i = 0; i < s.length; ++i){
  16                         b.push(s.charCodeAt(i));
  17                 }
  18                 return b;
  19         };
  20
  21         var b2s = function(b){
  22                 var s = [];
  23                 dojo.forEach(b, function(c){ s.push(String.fromCharCode(c)); });
  24                 return s.join("");
  25         };
  26
  27         var testOut = function(msg){
  28                 var a = new dojox.encoding.bits.OutputStream();
  29                 for(var i = 0; i < msg.length; ++i){
  30                         var v = msg.charCodeAt(i);
  31                         var j = Math.floor(Math.random() * 7) + 1;
  32                         a.putBits(v >>> (8 - j), j);
  33                         a.putBits(v, 8 - j);
  34                 }
  35                 return b2s(a.getBuffer());
  36         };
  37
  38         var testIn = function(msg){
  39                 var a = new dojox.encoding.bits.InputStream(s2b(msg), msg.length * 8);
  40                 var r = [];
  41                 for(var i = 0; i < msg.length; ++i){
  42                         var j = Math.floor(Math.random() * 7) + 1;
  43                         r.push((a.getBits(j) << (8 - j)) | a.getBits(8 - j));
  44                 }
  45                 return b2s(r);
  46         };
  47
  48         var test = function(msg){
  49                 var a = new dojox.encoding.bits.InputStream(s2b(msg), msg.length * 8);
  50                 var o = new dojox.encoding.bits.OutputStream();
  51                 while(a.getWidth() > 0){
  52                         var w = Math.min(a.getWidth(), 3);
  53                         o.putBits(a.getBits(w), w);
  54                 }
  55                 return b2s(o.getBuffer());
  56         };
  57
  58         tests.register("dojox.encoding.tests.bits", [
  59                 function testBitsOut1(t){ t.assertEqual(msg1, testOut(msg1)); },
  60                 function testBitsOut2(t){ t.assertEqual(msg2, testOut(msg2)); },
  61                 function testBitsOut3(t){ t.assertEqual(msg3, testOut(msg3)); },
  62                 function testBitsOut4(t){ t.assertEqual(msg4, testOut(msg4)); },
  63                 function testBitsIn1(t){ t.assertEqual(msg1, testIn(msg1)); },
  64                 function testBitsIn2(t){ t.assertEqual(msg2, testIn(msg2)); },
  65                 function testBitsIn3(t){ t.assertEqual(msg3, testIn(msg3)); },
  66                 function testBitsIn4(t){ t.assertEqual(msg4, testIn(msg4)); },
  67                 function testBits1(t){ t.assertEqual(msg1, test(msg1)); },
  68                 function testBits2(t){ t.assertEqual(msg2, test(msg2)); },
  69                 function testBits3(t){ t.assertEqual(msg3, test(msg3)); },
  70                 function testBits4(t){ t.assertEqual(msg4, test(msg4)); }
  71         ]);
  72 })();
  73
  74 }