├── .gitignore
├── README.md
├── lib
    ├── chai.js
    ├── expect.js
    ├── jquery.js
    ├── mocha.css
    ├── mocha.js
    ├── picomodal.js
    ├── sinon.js
    ├── spec.js
    ├── tweetit.js
    └── underscore-min.js
├── spec-runner.html
└── src.js


/.gitignore:
--------------------------------------------------------------------------------
1 | .DS_Store
2 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Cryptocurrency
2 | Create your own Cryptocurrency!
3 | 
4 | http://www.michaelnielsen.org/ddi/how-the-bitcoin-protocol-actually-works/
5 | 


--------------------------------------------------------------------------------
/lib/expect.js:
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   1 | 
   2 | (function (global, module) {
   3 | 
   4 |   if ('undefined' == typeof module) {
   5 |     var module = { exports: {} }
   6 |       , exports = module.exports
   7 |   }
   8 | 
   9 |   /**
  10 |    * Exports.
  11 |    */
  12 | 
  13 |   module.exports = expect;
  14 |   expect.Assertion = Assertion;
  15 | 
  16 |   /**
  17 |    * Exports version.
  18 |    */
  19 | 
  20 |   expect.version = '0.1.2';
  21 | 
  22 |   /**
  23 |    * Possible assertion flags.
  24 |    */
  25 | 
  26 |   var flags = {
  27 |       not: ['to', 'be', 'have', 'include', 'only']
  28 |     , to: ['be', 'have', 'include', 'only', 'not']
  29 |     , only: ['have']
  30 |     , have: ['own']
  31 |     , be: ['an']
  32 |   };
  33 | 
  34 |   function expect (obj) {
  35 |     return new Assertion(obj);
  36 |   }
  37 | 
  38 |   /**
  39 |    * Constructor
  40 |    *
  41 |    * @api private
  42 |    */
  43 | 
  44 |   function Assertion (obj, flag, parent) {
  45 |     this.obj = obj;
  46 |     this.flags = {};
  47 | 
  48 |     if (undefined != parent) {
  49 |       this.flags[flag] = true;
  50 | 
  51 |       for (var i in parent.flags) {
  52 |         if (parent.flags.hasOwnProperty(i)) {
  53 |           this.flags[i] = true;
  54 |         }
  55 |       }
  56 |     }
  57 | 
  58 |     var $flags = flag ? flags[flag] : keys(flags)
  59 |       , self = this
  60 | 
  61 |     if ($flags) {
  62 |       for (var i = 0, l = $flags.length; i < l; i++) {
  63 |         // avoid recursion
  64 |         if (this.flags[$flags[i]]) continue;
  65 | 
  66 |         var name = $flags[i]
  67 |           , assertion = new Assertion(this.obj, name, this)
  68 | 
  69 |         if ('function' == typeof Assertion.prototype[name]) {
  70 |           // clone the function, make sure we dont touch the prot reference
  71 |           var old = this[name];
  72 |           this[name] = function () {
  73 |             return old.apply(self, arguments);
  74 |           }
  75 | 
  76 |           for (var fn in Assertion.prototype) {
  77 |             if (Assertion.prototype.hasOwnProperty(fn) && fn != name) {
  78 |               this[name][fn] = bind(assertion[fn], assertion);
  79 |             }
  80 |           }
  81 |         } else {
  82 |           this[name] = assertion;
  83 |         }
  84 |       }
  85 |     }
  86 |   };
  87 | 
  88 |   /**
  89 |    * Performs an assertion
  90 |    *
  91 |    * @api private
  92 |    */
  93 | 
  94 |   Assertion.prototype.assert = function (truth, msg, error) {
  95 |     var msg = this.flags.not ? error : msg
  96 |       , ok = this.flags.not ? !truth : truth;
  97 | 
  98 |     if (!ok) {
  99 |       throw new Error(msg.call(this));
 100 |     }
 101 | 
 102 |     this.and = new Assertion(this.obj);
 103 |   };
 104 | 
 105 |   /**
 106 |    * Check if the value is truthy
 107 |    *
 108 |    * @api public
 109 |    */
 110 | 
 111 |   Assertion.prototype.ok = function () {
 112 |     this.assert(
 113 |         !!this.obj
 114 |       , function(){ return 'expected ' + i(this.obj) + ' to be truthy' }
 115 |       , function(){ return 'expected ' + i(this.obj) + ' to be falsy' });
 116 |   };
 117 | 
 118 |   /**
 119 |    * Assert that the function throws.
 120 |    *
 121 |    * @param {Function|RegExp} callback, or regexp to match error string against
 122 |    * @api public
 123 |    */
 124 | 
 125 |   Assertion.prototype.throwError =
 126 |   Assertion.prototype.throwException = function (fn) {
 127 |     expect(this.obj).to.be.a('function');
 128 | 
 129 |     var thrown = false
 130 |       , not = this.flags.not
 131 | 
 132 |     try {
 133 |       this.obj();
 134 |     } catch (e) {
 135 |       if ('function' == typeof fn) {
 136 |         fn(e);
 137 |       } else if ('object' == typeof fn) {
 138 |         var subject = 'string' == typeof e ? e : e.message;
 139 |         if (not) {
 140 |           expect(subject).to.not.match(fn);
 141 |         } else {
 142 |           expect(subject).to.match(fn);
 143 |         }
 144 |       }
 145 |       thrown = true;
 146 |     }
 147 | 
 148 |     if ('object' == typeof fn && not) {
 149 |       // in the presence of a matcher, ensure the `not` only applies to
 150 |       // the matching.
 151 |       this.flags.not = false;
 152 |     }
 153 | 
 154 |     var name = this.obj.name || 'fn';
 155 |     this.assert(
 156 |         thrown
 157 |       , function(){ return 'expected ' + name + ' to throw an exception' }
 158 |       , function(){ return 'expected ' + name + ' not to throw an exception' });
 159 |   };
 160 | 
 161 |   /**
 162 |    * Checks if the array is empty.
 163 |    *
 164 |    * @api public
 165 |    */
 166 | 
 167 |   Assertion.prototype.empty = function () {
 168 |     var expectation;
 169 | 
 170 |     if ('object' == typeof this.obj && null !== this.obj && !isArray(this.obj)) {
 171 |       if ('number' == typeof this.obj.length) {
 172 |         expectation = !this.obj.length;
 173 |       } else {
 174 |         expectation = !keys(this.obj).length;
 175 |       }
 176 |     } else {
 177 |       if ('string' != typeof this.obj) {
 178 |         expect(this.obj).to.be.an('object');
 179 |       }
 180 | 
 181 |       expect(this.obj).to.have.property('length');
 182 |       expectation = !this.obj.length;
 183 |     }
 184 | 
 185 |     this.assert(
 186 |         expectation
 187 |       , function(){ return 'expected ' + i(this.obj) + ' to be empty' }
 188 |       , function(){ return 'expected ' + i(this.obj) + ' to not be empty' });
 189 |     return this;
 190 |   };
 191 | 
 192 |   /**
 193 |    * Checks if the obj exactly equals another.
 194 |    *
 195 |    * @api public
 196 |    */
 197 | 
 198 |   Assertion.prototype.be =
 199 |   Assertion.prototype.equal = function (obj) {
 200 |     this.assert(
 201 |         obj === this.obj
 202 |       , function(){ return 'expected ' + i(this.obj) + ' to equal ' + i(obj) }
 203 |       , function(){ return 'expected ' + i(this.obj) + ' to not equal ' + i(obj) });
 204 |     return this;
 205 |   };
 206 | 
 207 |   /**
 208 |    * Checks if the obj sortof equals another.
 209 |    *
 210 |    * @api public
 211 |    */
 212 | 
 213 |   Assertion.prototype.eql = function (obj) {
 214 |     this.assert(
 215 |         expect.eql(obj, this.obj)
 216 |       , function(){ return 'expected ' + i(this.obj) + ' to sort of equal ' + i(obj) }
 217 |       , function(){ return 'expected ' + i(this.obj) + ' to sort of not equal ' + i(obj) });
 218 |     return this;
 219 |   };
 220 | 
 221 |   /**
 222 |    * Assert within start to finish (inclusive).
 223 |    *
 224 |    * @param {Number} start
 225 |    * @param {Number} finish
 226 |    * @api public
 227 |    */
 228 | 
 229 |   Assertion.prototype.within = function (start, finish) {
 230 |     var range = start + '..' + finish;
 231 |     this.assert(
 232 |         this.obj >= start && this.obj <= finish
 233 |       , function(){ return 'expected ' + i(this.obj) + ' to be within ' + range }
 234 |       , function(){ return 'expected ' + i(this.obj) + ' to not be within ' + range });
 235 |     return this;
 236 |   };
 237 | 
 238 |   /**
 239 |    * Assert typeof / instance of
 240 |    *
 241 |    * @api public
 242 |    */
 243 | 
 244 |   Assertion.prototype.a =
 245 |   Assertion.prototype.an = function (type) {
 246 |     if ('string' == typeof type) {
 247 |       // proper english in error msg
 248 |       var n = /^[aeiou]/.test(type) ? 'n' : '';
 249 | 
 250 |       // typeof with support for 'array'
 251 |       this.assert(
 252 |           'array' == type ? isArray(this.obj) :
 253 |             'object' == type
 254 |               ? 'object' == typeof this.obj && null !== this.obj
 255 |               : type == typeof this.obj
 256 |         , function(){ return 'expected ' + i(this.obj) + ' to be a' + n + ' ' + type }
 257 |         , function(){ return 'expected ' + i(this.obj) + ' not to be a' + n + ' ' + type });
 258 |     } else {
 259 |       // instanceof
 260 |       var name = type.name || 'supplied constructor';
 261 |       this.assert(
 262 |           this.obj instanceof type
 263 |         , function(){ return 'expected ' + i(this.obj) + ' to be an instance of ' + name }
 264 |         , function(){ return 'expected ' + i(this.obj) + ' not to be an instance of ' + name });
 265 |     }
 266 | 
 267 |     return this;
 268 |   };
 269 | 
 270 |   /**
 271 |    * Assert numeric value above _n_.
 272 |    *
 273 |    * @param {Number} n
 274 |    * @api public
 275 |    */
 276 | 
 277 |   Assertion.prototype.greaterThan =
 278 |   Assertion.prototype.above = function (n) {
 279 |     this.assert(
 280 |         this.obj > n
 281 |       , function(){ return 'expected ' + i(this.obj) + ' to be above ' + n }
 282 |       , function(){ return 'expected ' + i(this.obj) + ' to be below ' + n });
 283 |     return this;
 284 |   };
 285 | 
 286 |   /**
 287 |    * Assert numeric value below _n_.
 288 |    *
 289 |    * @param {Number} n
 290 |    * @api public
 291 |    */
 292 | 
 293 |   Assertion.prototype.lessThan =
 294 |   Assertion.prototype.below = function (n) {
 295 |     this.assert(
 296 |         this.obj < n
 297 |       , function(){ return 'expected ' + i(this.obj) + ' to be below ' + n }
 298 |       , function(){ return 'expected ' + i(this.obj) + ' to be above ' + n });
 299 |     return this;
 300 |   };
 301 | 
 302 |   /**
 303 |    * Assert string value matches _regexp_.
 304 |    *
 305 |    * @param {RegExp} regexp
 306 |    * @api public
 307 |    */
 308 | 
 309 |   Assertion.prototype.match = function (regexp) {
 310 |     this.assert(
 311 |         regexp.exec(this.obj)
 312 |       , function(){ return 'expected ' + i(this.obj) + ' to match ' + regexp }
 313 |       , function(){ return 'expected ' + i(this.obj) + ' not to match ' + regexp });
 314 |     return this;
 315 |   };
 316 | 
 317 |   /**
 318 |    * Assert property "length" exists and has value of _n_.
 319 |    *
 320 |    * @param {Number} n
 321 |    * @api public
 322 |    */
 323 | 
 324 |   Assertion.prototype.length = function (n) {
 325 |     expect(this.obj).to.have.property('length');
 326 |     var len = this.obj.length;
 327 |     this.assert(
 328 |         n == len
 329 |       , function(){ return 'expected ' + i(this.obj) + ' to have a length of ' + n + ' but got ' + len }
 330 |       , function(){ return 'expected ' + i(this.obj) + ' to not have a length of ' + len });
 331 |     return this;
 332 |   };
 333 | 
 334 |   /**
 335 |    * Assert property _name_ exists, with optional _val_.
 336 |    *
 337 |    * @param {String} name
 338 |    * @param {Mixed} val
 339 |    * @api public
 340 |    */
 341 | 
 342 |   Assertion.prototype.property = function (name, val) {
 343 |     if (this.flags.own) {
 344 |       this.assert(
 345 |           Object.prototype.hasOwnProperty.call(this.obj, name)
 346 |         , function(){ return 'expected ' + i(this.obj) + ' to have own property ' + i(name) }
 347 |         , function(){ return 'expected ' + i(this.obj) + ' to not have own property ' + i(name) });
 348 |       return this;
 349 |     }
 350 | 
 351 |     if (this.flags.not && undefined !== val) {
 352 |       if (undefined === this.obj[name]) {
 353 |         throw new Error(i(this.obj) + ' has no property ' + i(name));
 354 |       }
 355 |     } else {
 356 |       var hasProp;
 357 |       try {
 358 |         hasProp = name in this.obj
 359 |       } catch (e) {
 360 |         hasProp = undefined !== this.obj[name]
 361 |       }
 362 | 
 363 |       this.assert(
 364 |           hasProp
 365 |         , function(){ return 'expected ' + i(this.obj) + ' to have a property ' + i(name) }
 366 |         , function(){ return 'expected ' + i(this.obj) + ' to not have a property ' + i(name) });
 367 |     }
 368 | 
 369 |     if (undefined !== val) {
 370 |       this.assert(
 371 |           val === this.obj[name]
 372 |         , function(){ return 'expected ' + i(this.obj) + ' to have a property ' + i(name)
 373 |           + ' of ' + i(val) + ', but got ' + i(this.obj[name]) }
 374 |         , function(){ return 'expected ' + i(this.obj) + ' to not have a property ' + i(name)
 375 |           + ' of ' + i(val) });
 376 |     }
 377 | 
 378 |     this.obj = this.obj[name];
 379 |     return this;
 380 |   };
 381 | 
 382 |   /**
 383 |    * Assert that the array contains _obj_ or string contains _obj_.
 384 |    *
 385 |    * @param {Mixed} obj|string
 386 |    * @api public
 387 |    */
 388 | 
 389 |   Assertion.prototype.string =
 390 |   Assertion.prototype.contain = function (obj) {
 391 |     if ('string' == typeof this.obj) {
 392 |       this.assert(
 393 |           ~this.obj.indexOf(obj)
 394 |         , function(){ return 'expected ' + i(this.obj) + ' to contain ' + i(obj) }
 395 |         , function(){ return 'expected ' + i(this.obj) + ' to not contain ' + i(obj) });
 396 |     } else {
 397 |       this.assert(
 398 |           ~indexOf(this.obj, obj)
 399 |         , function(){ return 'expected ' + i(this.obj) + ' to contain ' + i(obj) }
 400 |         , function(){ return 'expected ' + i(this.obj) + ' to not contain ' + i(obj) });
 401 |     }
 402 |     return this;
 403 |   };
 404 | 
 405 |   /**
 406 |    * Assert exact keys or inclusion of keys by using
 407 |    * the `.own` modifier.
 408 |    *
 409 |    * @param {Array|String ...} keys
 410 |    * @api public
 411 |    */
 412 | 
 413 |   Assertion.prototype.key =
 414 |   Assertion.prototype.keys = function ($keys) {
 415 |     var str
 416 |       , ok = true;
 417 | 
 418 |     $keys = isArray($keys)
 419 |       ? $keys
 420 |       : Array.prototype.slice.call(arguments);
 421 | 
 422 |     if (!$keys.length) throw new Error('keys required');
 423 | 
 424 |     var actual = keys(this.obj)
 425 |       , len = $keys.length;
 426 | 
 427 |     // Inclusion
 428 |     ok = every($keys, function (key) {
 429 |       return ~indexOf(actual, key);
 430 |     });
 431 | 
 432 |     // Strict
 433 |     if (!this.flags.not && this.flags.only) {
 434 |       ok = ok && $keys.length == actual.length;
 435 |     }
 436 | 
 437 |     // Key string
 438 |     if (len > 1) {
 439 |       $keys = map($keys, function (key) {
 440 |         return i(key);
 441 |       });
 442 |       var last = $keys.pop();
 443 |       str = $keys.join(', ') + ', and ' + last;
 444 |     } else {
 445 |       str = i($keys[0]);
 446 |     }
 447 | 
 448 |     // Form
 449 |     str = (len > 1 ? 'keys ' : 'key ') + str;
 450 | 
 451 |     // Have / include
 452 |     str = (!this.flags.only ? 'include ' : 'only have ') + str;
 453 | 
 454 |     // Assertion
 455 |     this.assert(
 456 |         ok
 457 |       , function(){ return 'expected ' + i(this.obj) + ' to ' + str }
 458 |       , function(){ return 'expected ' + i(this.obj) + ' to not ' + str });
 459 | 
 460 |     return this;
 461 |   };
 462 |   /**
 463 |    * Assert a failure.
 464 |    *
 465 |    * @param {String ...} custom message
 466 |    * @api public
 467 |    */
 468 |   Assertion.prototype.fail = function (msg) {
 469 |     msg = msg || "explicit failure";
 470 |     this.assert(false, msg, msg);
 471 |     return this;
 472 |   };
 473 | 
 474 |   /**
 475 |    * Function bind implementation.
 476 |    */
 477 | 
 478 |   function bind (fn, scope) {
 479 |     return function () {
 480 |       return fn.apply(scope, arguments);
 481 |     }
 482 |   }
 483 | 
 484 |   /**
 485 |    * Array every compatibility
 486 |    *
 487 |    * @see bit.ly/5Fq1N2
 488 |    * @api public
 489 |    */
 490 | 
 491 |   function every (arr, fn, thisObj) {
 492 |     var scope = thisObj || global;
 493 |     for (var i = 0, j = arr.length; i < j; ++i) {
 494 |       if (!fn.call(scope, arr[i], i, arr)) {
 495 |         return false;
 496 |       }
 497 |     }
 498 |     return true;
 499 |   };
 500 | 
 501 |   /**
 502 |    * Array indexOf compatibility.
 503 |    *
 504 |    * @see bit.ly/a5Dxa2
 505 |    * @api public
 506 |    */
 507 | 
 508 |   function indexOf (arr, o, i) {
 509 |     if (Array.prototype.indexOf) {
 510 |       return Array.prototype.indexOf.call(arr, o, i);
 511 |     }
 512 | 
 513 |     if (arr.length === undefined) {
 514 |       return -1;
 515 |     }
 516 | 
 517 |     for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0
 518 |         ; i < j && arr[i] !== o; i++);
 519 | 
 520 |     return j <= i ? -1 : i;
 521 |   };
 522 | 
 523 |   // https://gist.github.com/1044128/
 524 |   var getOuterHTML = function(element) {
 525 |     if ('outerHTML' in element) return element.outerHTML;
 526 |     var ns = "http://www.w3.org/1999/xhtml";
 527 |     var container = document.createElementNS(ns, '_');
 528 |     var elemProto = (window.HTMLElement || window.Element).prototype;
 529 |     var xmlSerializer = new XMLSerializer();
 530 |     var html;
 531 |     if (document.xmlVersion) {
 532 |       return xmlSerializer.serializeToString(element);
 533 |     } else {
 534 |       container.appendChild(element.cloneNode(false));
 535 |       html = container.innerHTML.replace('><', '>' + element.innerHTML + '<');
 536 |       container.innerHTML = '';
 537 |       return html;
 538 |     }
 539 |   };
 540 | 
 541 |   // Returns true if object is a DOM element.
 542 |   var isDOMElement = function (object) {
 543 |     if (typeof HTMLElement === 'object') {
 544 |       return object instanceof HTMLElement;
 545 |     } else {
 546 |       return object &&
 547 |         typeof object === 'object' &&
 548 |         object.nodeType === 1 &&
 549 |         typeof object.nodeName === 'string';
 550 |     }
 551 |   };
 552 | 
 553 |   /**
 554 |    * Inspects an object.
 555 |    *
 556 |    * @see taken from node.js `util` module (copyright Joyent, MIT license)
 557 |    * @api private
 558 |    */
 559 | 
 560 |   function i (obj, showHidden, depth) {
 561 |     var seen = [];
 562 | 
 563 |     function stylize (str) {
 564 |       return str;
 565 |     };
 566 | 
 567 |     function format (value, recurseTimes) {
 568 |       // Provide a hook for user-specified inspect functions.
 569 |       // Check that value is an object with an inspect function on it
 570 |       if (value && typeof value.inspect === 'function' &&
 571 |           // Filter out the util module, it's inspect function is special
 572 |           value !== exports &&
 573 |           // Also filter out any prototype objects using the circular check.
 574 |           !(value.constructor && value.constructor.prototype === value)) {
 575 |         return value.inspect(recurseTimes);
 576 |       }
 577 | 
 578 |       // Primitive types cannot have properties
 579 |       switch (typeof value) {
 580 |         case 'undefined':
 581 |           return stylize('undefined', 'undefined');
 582 | 
 583 |         case 'string':
 584 |           var simple = '\'' + json.stringify(value).replace(/^"|"$/g, '')
 585 |                                                    .replace(/'/g, "\\'")
 586 |                                                    .replace(/\\"/g, '"') + '\'';
 587 |           return stylize(simple, 'string');
 588 | 
 589 |         case 'number':
 590 |           return stylize('' + value, 'number');
 591 | 
 592 |         case 'boolean':
 593 |           return stylize('' + value, 'boolean');
 594 |       }
 595 |       // For some reason typeof null is "object", so special case here.
 596 |       if (value === null) {
 597 |         return stylize('null', 'null');
 598 |       }
 599 | 
 600 |       if (isDOMElement(value)) {
 601 |         return getOuterHTML(value);
 602 |       }
 603 | 
 604 |       // Look up the keys of the object.
 605 |       var visible_keys = keys(value);
 606 |       var $keys = showHidden ? Object.getOwnPropertyNames(value) : visible_keys;
 607 | 
 608 |       // Functions without properties can be shortcutted.
 609 |       if (typeof value === 'function' && $keys.length === 0) {
 610 |         if (isRegExp(value)) {
 611 |           return stylize('' + value, 'regexp');
 612 |         } else {
 613 |           var name = value.name ? ': ' + value.name : '';
 614 |           return stylize('[Function' + name + ']', 'special');
 615 |         }
 616 |       }
 617 | 
 618 |       // Dates without properties can be shortcutted
 619 |       if (isDate(value) && $keys.length === 0) {
 620 |         return stylize(value.toUTCString(), 'date');
 621 |       }
 622 | 
 623 |       var base, type, braces;
 624 |       // Determine the object type
 625 |       if (isArray(value)) {
 626 |         type = 'Array';
 627 |         braces = ['[', ']'];
 628 |       } else {
 629 |         type = 'Object';
 630 |         braces = ['{', '}'];
 631 |       }
 632 | 
 633 |       // Make functions say that they are functions
 634 |       if (typeof value === 'function') {
 635 |         var n = value.name ? ': ' + value.name : '';
 636 |         base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
 637 |       } else {
 638 |         base = '';
 639 |       }
 640 | 
 641 |       // Make dates with properties first say the date
 642 |       if (isDate(value)) {
 643 |         base = ' ' + value.toUTCString();
 644 |       }
 645 | 
 646 |       if ($keys.length === 0) {
 647 |         return braces[0] + base + braces[1];
 648 |       }
 649 | 
 650 |       if (recurseTimes < 0) {
 651 |         if (isRegExp(value)) {
 652 |           return stylize('' + value, 'regexp');
 653 |         } else {
 654 |           return stylize('[Object]', 'special');
 655 |         }
 656 |       }
 657 | 
 658 |       seen.push(value);
 659 | 
 660 |       var output = map($keys, function (key) {
 661 |         var name, str;
 662 |         if (value.__lookupGetter__) {
 663 |           if (value.__lookupGetter__(key)) {
 664 |             if (value.__lookupSetter__(key)) {
 665 |               str = stylize('[Getter/Setter]', 'special');
 666 |             } else {
 667 |               str = stylize('[Getter]', 'special');
 668 |             }
 669 |           } else {
 670 |             if (value.__lookupSetter__(key)) {
 671 |               str = stylize('[Setter]', 'special');
 672 |             }
 673 |           }
 674 |         }
 675 |         if (indexOf(visible_keys, key) < 0) {
 676 |           name = '[' + key + ']';
 677 |         }
 678 |         if (!str) {
 679 |           if (indexOf(seen, value[key]) < 0) {
 680 |             if (recurseTimes === null) {
 681 |               str = format(value[key]);
 682 |             } else {
 683 |               str = format(value[key], recurseTimes - 1);
 684 |             }
 685 |             if (str.indexOf('\n') > -1) {
 686 |               if (isArray(value)) {
 687 |                 str = map(str.split('\n'), function (line) {
 688 |                   return '  ' + line;
 689 |                 }).join('\n').substr(2);
 690 |               } else {
 691 |                 str = '\n' + map(str.split('\n'), function (line) {
 692 |                   return '   ' + line;
 693 |                 }).join('\n');
 694 |               }
 695 |             }
 696 |           } else {
 697 |             str = stylize('[Circular]', 'special');
 698 |           }
 699 |         }
 700 |         if (typeof name === 'undefined') {
 701 |           if (type === 'Array' && key.match(/^\d+$/)) {
 702 |             return str;
 703 |           }
 704 |           name = json.stringify('' + key);
 705 |           if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
 706 |             name = name.substr(1, name.length - 2);
 707 |             name = stylize(name, 'name');
 708 |           } else {
 709 |             name = name.replace(/'/g, "\\'")
 710 |                        .replace(/\\"/g, '"')
 711 |                        .replace(/(^"|"$)/g, "'");
 712 |             name = stylize(name, 'string');
 713 |           }
 714 |         }
 715 | 
 716 |         return name + ': ' + str;
 717 |       });
 718 | 
 719 |       seen.pop();
 720 | 
 721 |       var numLinesEst = 0;
 722 |       var length = reduce(output, function (prev, cur) {
 723 |         numLinesEst++;
 724 |         if (indexOf(cur, '\n') >= 0) numLinesEst++;
 725 |         return prev + cur.length + 1;
 726 |       }, 0);
 727 | 
 728 |       if (length > 50) {
 729 |         output = braces[0] +
 730 |                  (base === '' ? '' : base + '\n ') +
 731 |                  ' ' +
 732 |                  output.join(',\n  ') +
 733 |                  ' ' +
 734 |                  braces[1];
 735 | 
 736 |       } else {
 737 |         output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
 738 |       }
 739 | 
 740 |       return output;
 741 |     }
 742 |     return format(obj, (typeof depth === 'undefined' ? 2 : depth));
 743 |   };
 744 | 
 745 |   function isArray (ar) {
 746 |     return Object.prototype.toString.call(ar) == '[object Array]';
 747 |   };
 748 | 
 749 |   function isRegExp(re) {
 750 |     var s;
 751 |     try {
 752 |       s = '' + re;
 753 |     } catch (e) {
 754 |       return false;
 755 |     }
 756 | 
 757 |     return re instanceof RegExp || // easy case
 758 |            // duck-type for context-switching evalcx case
 759 |            typeof(re) === 'function' &&
 760 |            re.constructor.name === 'RegExp' &&
 761 |            re.compile &&
 762 |            re.test &&
 763 |            re.exec &&
 764 |            s.match(/^\/.*\/[gim]{0,3}$/);
 765 |   };
 766 | 
 767 |   function isDate(d) {
 768 |     if (d instanceof Date) return true;
 769 |     return false;
 770 |   };
 771 | 
 772 |   function keys (obj) {
 773 |     if (Object.keys) {
 774 |       return Object.keys(obj);
 775 |     }
 776 | 
 777 |     var keys = [];
 778 | 
 779 |     for (var i in obj) {
 780 |       if (Object.prototype.hasOwnProperty.call(obj, i)) {
 781 |         keys.push(i);
 782 |       }
 783 |     }
 784 | 
 785 |     return keys;
 786 |   }
 787 | 
 788 |   function map (arr, mapper, that) {
 789 |     if (Array.prototype.map) {
 790 |       return Array.prototype.map.call(arr, mapper, that);
 791 |     }
 792 | 
 793 |     var other= new Array(arr.length);
 794 | 
 795 |     for (var i= 0, n = arr.length; i<n; i++)
 796 |       if (i in arr)
 797 |         other[i] = mapper.call(that, arr[i], i, arr);
 798 | 
 799 |     return other;
 800 |   };
 801 | 
 802 |   function reduce (arr, fun) {
 803 |     if (Array.prototype.reduce) {
 804 |       return Array.prototype.reduce.apply(
 805 |           arr
 806 |         , Array.prototype.slice.call(arguments, 1)
 807 |       );
 808 |     }
 809 | 
 810 |     var len = +this.length;
 811 | 
 812 |     if (typeof fun !== "function")
 813 |       throw new TypeError();
 814 | 
 815 |     // no value to return if no initial value and an empty array
 816 |     if (len === 0 && arguments.length === 1)
 817 |       throw new TypeError();
 818 | 
 819 |     var i = 0;
 820 |     if (arguments.length >= 2) {
 821 |       var rv = arguments[1];
 822 |     } else {
 823 |       do {
 824 |         if (i in this) {
 825 |           rv = this[i++];
 826 |           break;
 827 |         }
 828 | 
 829 |         // if array contains no values, no initial value to return
 830 |         if (++i >= len)
 831 |           throw new TypeError();
 832 |       } while (true);
 833 |     }
 834 | 
 835 |     for (; i < len; i++) {
 836 |       if (i in this)
 837 |         rv = fun.call(null, rv, this[i], i, this);
 838 |     }
 839 | 
 840 |     return rv;
 841 |   };
 842 | 
 843 |   /**
 844 |    * Asserts deep equality
 845 |    *
 846 |    * @see taken from node.js `assert` module (copyright Joyent, MIT license)
 847 |    * @api private
 848 |    */
 849 | 
 850 |   expect.eql = function eql (actual, expected) {
 851 |     // 7.1. All identical values are equivalent, as determined by ===.
 852 |     if (actual === expected) {
 853 |       return true;
 854 |     } else if ('undefined' != typeof Buffer
 855 |         && Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) {
 856 |       if (actual.length != expected.length) return false;
 857 | 
 858 |       for (var i = 0; i < actual.length; i++) {
 859 |         if (actual[i] !== expected[i]) return false;
 860 |       }
 861 | 
 862 |       return true;
 863 | 
 864 |     // 7.2. If the expected value is a Date object, the actual value is
 865 |     // equivalent if it is also a Date object that refers to the same time.
 866 |     } else if (actual instanceof Date && expected instanceof Date) {
 867 |       return actual.getTime() === expected.getTime();
 868 | 
 869 |     // 7.3. Other pairs that do not both pass typeof value == "object",
 870 |     // equivalence is determined by ==.
 871 |     } else if (typeof actual != 'object' && typeof expected != 'object') {
 872 |       return actual == expected;
 873 | 
 874 |     // 7.4. For all other Object pairs, including Array objects, equivalence is
 875 |     // determined by having the same number of owned properties (as verified
 876 |     // with Object.prototype.hasOwnProperty.call), the same set of keys
 877 |     // (although not necessarily the same order), equivalent values for every
 878 |     // corresponding key, and an identical "prototype" property. Note: this
 879 |     // accounts for both named and indexed properties on Arrays.
 880 |     } else {
 881 |       return objEquiv(actual, expected);
 882 |     }
 883 |   }
 884 | 
 885 |   function isUndefinedOrNull (value) {
 886 |     return value === null || value === undefined;
 887 |   }
 888 | 
 889 |   function isArguments (object) {
 890 |     return Object.prototype.toString.call(object) == '[object Arguments]';
 891 |   }
 892 | 
 893 |   function objEquiv (a, b) {
 894 |     if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
 895 |       return false;
 896 |     // an identical "prototype" property.
 897 |     if (a.prototype !== b.prototype) return false;
 898 |     //~~~I've managed to break Object.keys through screwy arguments passing.
 899 |     //   Converting to array solves the problem.
 900 |     if (isArguments(a)) {
 901 |       if (!isArguments(b)) {
 902 |         return false;
 903 |       }
 904 |       a = pSlice.call(a);
 905 |       b = pSlice.call(b);
 906 |       return expect.eql(a, b);
 907 |     }
 908 |     try{
 909 |       var ka = keys(a),
 910 |         kb = keys(b),
 911 |         key, i;
 912 |     } catch (e) {//happens when one is a string literal and the other isn't
 913 |       return false;
 914 |     }
 915 |     // having the same number of owned properties (keys incorporates hasOwnProperty)
 916 |     if (ka.length != kb.length)
 917 |       return false;
 918 |     //the same set of keys (although not necessarily the same order),
 919 |     ka.sort();
 920 |     kb.sort();
 921 |     //~~~cheap key test
 922 |     for (i = ka.length - 1; i >= 0; i--) {
 923 |       if (ka[i] != kb[i])
 924 |         return false;
 925 |     }
 926 |     //equivalent values for every corresponding key, and
 927 |     //~~~possibly expensive deep test
 928 |     for (i = ka.length - 1; i >= 0; i--) {
 929 |       key = ka[i];
 930 |       if (!expect.eql(a[key], b[key]))
 931 |          return false;
 932 |     }
 933 |     return true;
 934 |   }
 935 | 
 936 |   var json = (function () {
 937 |     "use strict";
 938 | 
 939 |     if ('object' == typeof JSON && JSON.parse && JSON.stringify) {
 940 |       return {
 941 |           parse: nativeJSON.parse
 942 |         , stringify: nativeJSON.stringify
 943 |       }
 944 |     }
 945 | 
 946 |     var JSON = {};
 947 | 
 948 |     function f(n) {
 949 |         // Format integers to have at least two digits.
 950 |         return n < 10 ? '0' + n : n;
 951 |     }
 952 | 
 953 |     function date(d, key) {
 954 |       return isFinite(d.valueOf()) ?
 955 |           d.getUTCFullYear()     + '-' +
 956 |           f(d.getUTCMonth() + 1) + '-' +
 957 |           f(d.getUTCDate())      + 'T' +
 958 |           f(d.getUTCHours())     + ':' +
 959 |           f(d.getUTCMinutes())   + ':' +
 960 |           f(d.getUTCSeconds())   + 'Z' : null;
 961 |     };
 962 | 
 963 |     var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
 964 |         escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
 965 |         gap,
 966 |         indent,
 967 |         meta = {    // table of character substitutions
 968 |             '\b': '\\b',
 969 |             '\t': '\\t',
 970 |             '\n': '\\n',
 971 |             '\f': '\\f',
 972 |             '\r': '\\r',
 973 |             '"' : '\\"',
 974 |             '\\': '\\\\'
 975 |         },
 976 |         rep;
 977 | 
 978 | 
 979 |     function quote(string) {
 980 | 
 981 |   // If the string contains no control characters, no quote characters, and no
 982 |   // backslash characters, then we can safely slap some quotes around it.
 983 |   // Otherwise we must also replace the offending characters with safe escape
 984 |   // sequences.
 985 | 
 986 |         escapable.lastIndex = 0;
 987 |         return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
 988 |             var c = meta[a];
 989 |             return typeof c === 'string' ? c :
 990 |                 '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
 991 |         }) + '"' : '"' + string + '"';
 992 |     }
 993 | 
 994 | 
 995 |     function str(key, holder) {
 996 | 
 997 |   // Produce a string from holder[key].
 998 | 
 999 |         var i,          // The loop counter.
1000 |             k,          // The member key.
1001 |             v,          // The member value.
1002 |             length,
1003 |             mind = gap,
1004 |             partial,
1005 |             value = holder[key];
1006 | 
1007 |   // If the value has a toJSON method, call it to obtain a replacement value.
1008 | 
1009 |         if (value instanceof Date) {
1010 |             value = date(key);
1011 |         }
1012 | 
1013 |   // If we were called with a replacer function, then call the replacer to
1014 |   // obtain a replacement value.
1015 | 
1016 |         if (typeof rep === 'function') {
1017 |             value = rep.call(holder, key, value);
1018 |         }
1019 | 
1020 |   // What happens next depends on the value's type.
1021 | 
1022 |         switch (typeof value) {
1023 |         case 'string':
1024 |             return quote(value);
1025 | 
1026 |         case 'number':
1027 | 
1028 |   // JSON numbers must be finite. Encode non-finite numbers as null.
1029 | 
1030 |             return isFinite(value) ? String(value) : 'null';
1031 | 
1032 |         case 'boolean':
1033 |         case 'null':
1034 | 
1035 |   // If the value is a boolean or null, convert it to a string. Note:
1036 |   // typeof null does not produce 'null'. The case is included here in
1037 |   // the remote chance that this gets fixed someday.
1038 | 
1039 |             return String(value);
1040 | 
1041 |   // If the type is 'object', we might be dealing with an object or an array or
1042 |   // null.
1043 | 
1044 |         case 'object':
1045 | 
1046 |   // Due to a specification blunder in ECMAScript, typeof null is 'object',
1047 |   // so watch out for that case.
1048 | 
1049 |             if (!value) {
1050 |                 return 'null';
1051 |             }
1052 | 
1053 |   // Make an array to hold the partial results of stringifying this object value.
1054 | 
1055 |             gap += indent;
1056 |             partial = [];
1057 | 
1058 |   // Is the value an array?
1059 | 
1060 |             if (Object.prototype.toString.apply(value) === '[object Array]') {
1061 | 
1062 |   // The value is an array. Stringify every element. Use null as a placeholder
1063 |   // for non-JSON values.
1064 | 
1065 |                 length = value.length;
1066 |                 for (i = 0; i < length; i += 1) {
1067 |                     partial[i] = str(i, value) || 'null';
1068 |                 }
1069 | 
1070 |   // Join all of the elements together, separated with commas, and wrap them in
1071 |   // brackets.
1072 | 
1073 |                 v = partial.length === 0 ? '[]' : gap ?
1074 |                     '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
1075 |                     '[' + partial.join(',') + ']';
1076 |                 gap = mind;
1077 |                 return v;
1078 |             }
1079 | 
1080 |   // If the replacer is an array, use it to select the members to be stringified.
1081 | 
1082 |             if (rep && typeof rep === 'object') {
1083 |                 length = rep.length;
1084 |                 for (i = 0; i < length; i += 1) {
1085 |                     if (typeof rep[i] === 'string') {
1086 |                         k = rep[i];
1087 |                         v = str(k, value);
1088 |                         if (v) {
1089 |                             partial.push(quote(k) + (gap ? ': ' : ':') + v);
1090 |                         }
1091 |                     }
1092 |                 }
1093 |             } else {
1094 | 
1095 |   // Otherwise, iterate through all of the keys in the object.
1096 | 
1097 |                 for (k in value) {
1098 |                     if (Object.prototype.hasOwnProperty.call(value, k)) {
1099 |                         v = str(k, value);
1100 |                         if (v) {
1101 |                             partial.push(quote(k) + (gap ? ': ' : ':') + v);
1102 |                         }
1103 |                     }
1104 |                 }
1105 |             }
1106 | 
1107 |   // Join all of the member texts together, separated with commas,
1108 |   // and wrap them in braces.
1109 | 
1110 |             v = partial.length === 0 ? '{}' : gap ?
1111 |                 '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
1112 |                 '{' + partial.join(',') + '}';
1113 |             gap = mind;
1114 |             return v;
1115 |         }
1116 |     }
1117 | 
1118 |   // If the JSON object does not yet have a stringify method, give it one.
1119 | 
1120 |     JSON.stringify = function (value, replacer, space) {
1121 | 
1122 |   // The stringify method takes a value and an optional replacer, and an optional
1123 |   // space parameter, and returns a JSON text. The replacer can be a function
1124 |   // that can replace values, or an array of strings that will select the keys.
1125 |   // A default replacer method can be provided. Use of the space parameter can
1126 |   // produce text that is more easily readable.
1127 | 
1128 |         var i;
1129 |         gap = '';
1130 |         indent = '';
1131 | 
1132 |   // If the space parameter is a number, make an indent string containing that
1133 |   // many spaces.
1134 | 
1135 |         if (typeof space === 'number') {
1136 |             for (i = 0; i < space; i += 1) {
1137 |                 indent += ' ';
1138 |             }
1139 | 
1140 |   // If the space parameter is a string, it will be used as the indent string.
1141 | 
1142 |         } else if (typeof space === 'string') {
1143 |             indent = space;
1144 |         }
1145 | 
1146 |   // If there is a replacer, it must be a function or an array.
1147 |   // Otherwise, throw an error.
1148 | 
1149 |         rep = replacer;
1150 |         if (replacer && typeof replacer !== 'function' &&
1151 |                 (typeof replacer !== 'object' ||
1152 |                 typeof replacer.length !== 'number')) {
1153 |             throw new Error('JSON.stringify');
1154 |         }
1155 | 
1156 |   // Make a fake root object containing our value under the key of ''.
1157 |   // Return the result of stringifying the value.
1158 | 
1159 |         return str('', {'': value});
1160 |     };
1161 | 
1162 |   // If the JSON object does not yet have a parse method, give it one.
1163 | 
1164 |     JSON.parse = function (text, reviver) {
1165 |     // The parse method takes a text and an optional reviver function, and returns
1166 |     // a JavaScript value if the text is a valid JSON text.
1167 | 
1168 |         var j;
1169 | 
1170 |         function walk(holder, key) {
1171 | 
1172 |     // The walk method is used to recursively walk the resulting structure so
1173 |     // that modifications can be made.
1174 | 
1175 |             var k, v, value = holder[key];
1176 |             if (value && typeof value === 'object') {
1177 |                 for (k in value) {
1178 |                     if (Object.prototype.hasOwnProperty.call(value, k)) {
1179 |                         v = walk(value, k);
1180 |                         if (v !== undefined) {
1181 |                             value[k] = v;
1182 |                         } else {
1183 |                             delete value[k];
1184 |                         }
1185 |                     }
1186 |                 }
1187 |             }
1188 |             return reviver.call(holder, key, value);
1189 |         }
1190 | 
1191 | 
1192 |     // Parsing happens in four stages. In the first stage, we replace certain
1193 |     // Unicode characters with escape sequences. JavaScript handles many characters
1194 |     // incorrectly, either silently deleting them, or treating them as line endings.
1195 | 
1196 |         text = String(text);
1197 |         cx.lastIndex = 0;
1198 |         if (cx.test(text)) {
1199 |             text = text.replace(cx, function (a) {
1200 |                 return '\\u' +
1201 |                     ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
1202 |             });
1203 |         }
1204 | 
1205 |     // In the second stage, we run the text against regular expressions that look
1206 |     // for non-JSON patterns. We are especially concerned with '()' and 'new'
1207 |     // because they can cause invocation, and '=' because it can cause mutation.
1208 |     // But just to be safe, we want to reject all unexpected forms.
1209 | 
1210 |     // We split the second stage into 4 regexp operations in order to work around
1211 |     // crippling inefficiencies in IE's and Safari's regexp engines. First we
1212 |     // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
1213 |     // replace all simple value tokens with ']' characters. Third, we delete all
1214 |     // open brackets that follow a colon or comma or that begin the text. Finally,
1215 |     // we look to see that the remaining characters are only whitespace or ']' or
1216 |     // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
1217 | 
1218 |         if (/^[\],:{}\s]*$/
1219 |                 .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
1220 |                     .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
1221 |                     .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
1222 | 
1223 |     // In the third stage we use the eval function to compile the text into a
1224 |     // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
1225 |     // in JavaScript: it can begin a block or an object literal. We wrap the text
1226 |     // in parens to eliminate the ambiguity.
1227 | 
1228 |             j = eval('(' + text + ')');
1229 | 
1230 |     // In the optional fourth stage, we recursively walk the new structure, passing
1231 |     // each name/value pair to a reviver function for possible transformation.
1232 | 
1233 |             return typeof reviver === 'function' ?
1234 |                 walk({'': j}, '') : j;
1235 |         }
1236 | 
1237 |     // If the text is not JSON parseable, then a SyntaxError is thrown.
1238 | 
1239 |         throw new SyntaxError('JSON.parse');
1240 |     };
1241 | 
1242 |     return JSON;
1243 |   })();
1244 | 
1245 |   if ('undefined' != typeof window) {
1246 |     window.expect = module.exports;
1247 |   }
1248 | 
1249 | })(
1250 |     this
1251 |   , 'undefined' != typeof module ? module : {}
1252 |   , 'undefined' != typeof exports ? exports : {}
1253 | );
1254 | 


--------------------------------------------------------------------------------
/lib/jquery.js:
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4 | //@ sourceMappingURL=jquery.min.map


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/lib/mocha.css:
--------------------------------------------------------------------------------
  1 | @charset "utf-8";
  2 | 
  3 | body {
  4 |   font: 20px/1.5 "Helvetica Neue", Helvetica, Arial, sans-serif;
  5 |   padding: 60px 50px;
  6 | }
  7 | 
  8 | #mocha ul, #mocha li {
  9 |   margin: 0;
 10 |   padding: 0;
 11 | }
 12 | 
 13 | #mocha ul {
 14 |   list-style: none;
 15 | }
 16 | 
 17 | #mocha h1, #mocha h2 {
 18 |   margin: 0;
 19 | }
 20 | 
 21 | #mocha h1 {
 22 |   margin-top: 15px;
 23 |   font-size: 1em;
 24 |   font-weight: 200;
 25 | }
 26 | 
 27 | #mocha h1 a {
 28 |   text-decoration: none;
 29 |   color: inherit;
 30 | }
 31 | 
 32 | #mocha h1 a:hover {
 33 |   text-decoration: underline;
 34 | }
 35 | 
 36 | #mocha .suite .suite h1 {
 37 |   margin-top: 0;
 38 |   font-size: .8em;
 39 | }
 40 | 
 41 | .hidden {
 42 |   display: none;
 43 | }
 44 | 
 45 | #mocha h2 {
 46 |   font-size: 12px;
 47 |   font-weight: normal;
 48 |   cursor: pointer;
 49 | }
 50 | 
 51 | #mocha .suite {
 52 |   margin-left: 15px;
 53 |   clear:both;
 54 | }
 55 | 
 56 | #mocha .test {
 57 |   margin-left: 15px;
 58 |   /*overflow: hidden;*/
 59 |   clear:both;
 60 | }
 61 | 
 62 | #mocha .test.pending:hover h2::after {
 63 |   content: '(pending)';
 64 |   font-family: arial;
 65 | }
 66 | 
 67 | #mocha .test.pass.medium .duration {
 68 |   background: #C09853;
 69 | }
 70 | 
 71 | #mocha .test.pass.slow .duration {
 72 |   background: #B94A48;
 73 | }
 74 | 
 75 | #mocha .test.pass::before {
 76 |   content: '✓';
 77 |   font-size: 12px;
 78 |   display: block;
 79 |   float: left;
 80 |   margin-right: 5px;
 81 |   color: #00d6b2;
 82 | }
 83 | 
 84 | #mocha .test.pass .duration {
 85 |   font-size: 9px;
 86 |   margin-left: 5px;
 87 |   padding: 2px 5px;
 88 |   color: white;
 89 |   -webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.2);
 90 |   -moz-box-shadow: inset 0 1px 1px rgba(0,0,0,.2);
 91 |   box-shadow: inset 0 1px 1px rgba(0,0,0,.2);
 92 |   -webkit-border-radius: 5px;
 93 |   -moz-border-radius: 5px;
 94 |   -ms-border-radius: 5px;
 95 |   -o-border-radius: 5px;
 96 |   border-radius: 5px;
 97 | }
 98 | 
 99 | #mocha .test.pass.fast .duration {
100 |   display: none;
101 | }
102 | 
103 | #mocha .test.pending {
104 |   color: #0b97c4;
105 | }
106 | 
107 | #mocha .test.pending::before {
108 |   content: '◦';
109 |   color: #0b97c4;
110 | }
111 | 
112 | #mocha .test.fail {
113 |   color: #c00;
114 | }
115 | 
116 | #mocha .test.fail pre {
117 |   color: black;
118 | }
119 | 
120 | #mocha .test.fail::before {
121 |   content: '✖';
122 |   font-size: 12px;
123 |   display: block;
124 |   float: left;
125 |   margin-right: 5px;
126 |   color: #c00;
127 | }
128 | 
129 | #mocha .test pre.error {
130 |   color: #c00;
131 |   max-height: 300px;
132 |   overflow: auto;
133 | }
134 | 
135 | #mocha .test pre {
136 |   display: block;
137 |   float: left;
138 |   clear: left;
139 |   font: 12px/1.5 monaco, monospace;
140 |   margin: 5px;
141 |   padding: 15px;
142 |   border: 1px solid #eee;
143 |   border-bottom-color: #ddd;
144 |   -webkit-border-radius: 3px;
145 |   -webkit-box-shadow: 0 1px 3px #eee;
146 |   -moz-border-radius: 3px;
147 |   -moz-box-shadow: 0 1px 3px #eee;
148 | }
149 | 
150 | #mocha .test h2 {
151 |   position: relative;
152 | }
153 | 
154 | #mocha .test a.replay {
155 |   position: absolute;
156 |   top: 3px;
157 |   right: 0;
158 |   text-decoration: none;
159 |   vertical-align: middle;
160 |   display: block;
161 |   width: 15px;
162 |   height: 15px;
163 |   line-height: 15px;
164 |   text-align: center;
165 |   background: #eee;
166 |   font-size: 15px;
167 |   -moz-border-radius: 15px;
168 |   border-radius: 15px;
169 |   -webkit-transition: opacity 200ms;
170 |   -moz-transition: opacity 200ms;
171 |   transition: opacity 200ms;
172 |   opacity: 0.3;
173 |   color: #888;
174 | }
175 | 
176 | #mocha .test:hover a.replay {
177 |   opacity: 1;
178 | }
179 | 
180 | #mocha-report.pass .test.fail {
181 |   display: none;
182 | }
183 | 
184 | #mocha-report.fail .test.pass {
185 |   display: none;
186 | }
187 | 
188 | #mocha-error {
189 |   color: #c00;
190 |   font-size: 1.5  em;
191 |   font-weight: 100;
192 |   letter-spacing: 1px;
193 | }
194 | 
195 | #mocha-stats {
196 |   position: fixed;
197 |   top: 15px;
198 |   right: 10px;
199 |   font-size: 12px;
200 |   margin: 0;
201 |   color: #888;
202 | }
203 | 
204 | #mocha-stats .progress {
205 |   float: right;
206 |   padding-top: 0;
207 | }
208 | 
209 | #mocha-stats em {
210 |   color: black;
211 | }
212 | 
213 | #mocha-stats a {
214 |   text-decoration: none;
215 |   color: inherit;
216 | }
217 | 
218 | #mocha-stats a:hover {
219 |   border-bottom: 1px solid #eee;
220 | }
221 | 
222 | #mocha-stats li {
223 |   display: inline-block;
224 |   margin: 0 5px;
225 |   list-style: none;
226 |   padding-top: 11px;
227 | }
228 | 
229 | code .comment { color: #ddd }
230 | code .init { color: #2F6FAD }
231 | code .string { color: #5890AD }
232 | code .keyword { color: #8A6343 }
233 | code .number { color: #2F6FAD }
234 | 
235 | @media screen and (max-device-width: 480px) {
236 |   body {
237 |     padding: 60px 0px;
238 |   }
239 | 
240 |   #stats {
241 |     position: absolute;
242 |   }
243 | }
244 | 


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/lib/picomodal.js:
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/lib/spec.js:
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  1 | var expect = chai.expect;
  2 | 
  3 | describe('Client', function(){
  4 |   context('.balance', function(){
  5 |     it('calculates available balance that can be spent', function(){
  6 |       var client1 = new Client('client1');
  7 |       expect(client1.balance()).to.equal(0);
  8 | 
  9 |       var txn = client1.generateRewardTransaction(0, 'client1', 6);
 10 |       client1.unusedValidTransactions[txn.id] = txn;
 11 | 
 12 |       expect(client1.balance()).to.equal(6);
 13 |     });
 14 |     it('only includes amount to self', function(){
 15 |       var client1 = new Client('client1');
 16 | 
 17 |       var txn1 = new Transaction('coinbase', 'txn1');
 18 |       txn1.addOutput('client1', 1);
 19 |       txn1.addOutput('other', 2);
 20 |       client1.unusedValidTransactions[txn1.id] = txn1;
 21 |       var txn2 = new Transaction('coinbase', 'txn2');
 22 |       txn2.addOutput('other', 5);
 23 |       client1.unusedValidTransactions[txn2.id] = txn2;
 24 | 
 25 |       expect(client1.balance()).to.equal(1);
 26 |     });
 27 |   });
 28 | 
 29 |   context('.give', function(){
 30 |     it('creates a transaction to give an amount to other clients', function(){
 31 |       var client1 = new Client('client1');
 32 |       var txn = client1.give('client2', 4);
 33 |       expect(txn.sender).to.deep.equal(client1);
 34 |       expect(txn.inputs).to.not.equal(undefined);
 35 |       expect(txn.outputs).to.not.equal(undefined);
 36 |     });
 37 |     it('uses all transactions that gave this client an amount as inputs to new transaction', function(){
 38 |       var client1 = new Client('client1');
 39 |       var txn1 = new Transaction('coinbase', 'txn1');
 40 |       txn1.addOutput('client1', 5);
 41 |       client1.unusedValidTransactions[txn1.id] = txn1;
 42 | 
 43 |       var txn2 = new Transaction('coinbase', 'txn2');
 44 |       txn2.addOutput('other', 4);
 45 |       client1.unusedValidTransactions[txn2.id] = txn2;
 46 |       var giftTxn = client1.give('client2', 3);
 47 | 
 48 |       expect(giftTxn.inputs).to.deep.equal([txn1]);
 49 |       expect(giftTxn.inputs).to.not.deep.equal(client1.unusedValidTransactions);
 50 |     });
 51 |     it('lists destination and amount as an output to new transaction', function(){
 52 |       var client1 = new Client('client1');
 53 |       var txn = client1.give('client2', 4);
 54 |       expect(txn.outputs[0]).to.deep.equal({amount: 4, destination: 'client2'});
 55 |     });
 56 |     it('lists self and amount not sent to destination as an output to new transaction', function(){
 57 |       var stub = sinon.stub(Client.prototype, 'balance', function(){ return 10; });
 58 |       var client1 = new Client('client1');
 59 | 
 60 |       var initialTxn = new Transaction('coinbase', 'initialTxn');
 61 |       initialTxn.addOutput('client1', 10);
 62 |       client1.unusedValidTransactions[initialTxn.id] = initialTxn;
 63 | 
 64 |       var txn = client1.give('client2', 4);
 65 |       expect(txn.outputs[1]).to.deep.equal({amount: 6, destination: 'client1'});
 66 |       stub.restore();
 67 |     });
 68 |     it('broadcasts the new transaction', function(){
 69 |       // setup
 70 |       var spy = sinon.spy(Client.prototype, 'broadcastTransaction');
 71 |       // test
 72 |       var client1 = new Client('client1');
 73 |       var txn = client1.give('client2', 4);
 74 |       expect(spy.calledWith(txn)).to.be.true;
 75 |       // teardown
 76 |       Client.prototype.broadcastTransaction.restore();
 77 |     });
 78 |   });
 79 | 
 80 |   context('.broadcastTransaction', function(){
 81 |     it('passes the new transaction to other clients', function(){
 82 |       // setup
 83 |       var spy = sinon.spy(Client.prototype, "onReceivingTransaction");
 84 |       var client1 = new Client('client1');
 85 |       var clients = [client1];
 86 |       var txn = new Transaction('txn');
 87 |       // test
 88 |       client1.broadcastTransaction(txn);
 89 |       expect(spy.calledWith(txn)).to.be.true;
 90 |       // teardown
 91 |       Client.prototype.onReceivingTransaction.restore();
 92 |     });
 93 |     xit('passes copy, not original new transaction');
 94 |     it('passes own id to other clients', function(){
 95 |       // setup
 96 |       var spy = sinon.spy(Client.prototype, "onReceivingTransaction");
 97 |       var client1 = new Client('client1');
 98 |       var clients = [client1];
 99 |       var txn = new Transaction(client1);
100 |       // test
101 |       client1.broadcastTransaction(txn);
102 |       expect(spy.args[0][1]).to.equal(client1.id);
103 |       // teardown
104 |       Client.prototype.onReceivingTransaction.restore();
105 |     });
106 |   });
107 | 
108 |   context('.onReceivingTransaction', function(){
109 |     it('stores new transaction if valid', function(){
110 |       var stub = sinon.stub(Client.prototype, 'verify', function(){ return true; });
111 |       var client1 = new Client('client1');
112 |       var initialTxn = new Transaction('coinbase');
113 |       initialTxn.addOutput('client1', 7);
114 |       client1.unusedValidTransactions[initialTxn.id] = initialTxn;
115 |       var validTxn = new Transaction(client1);
116 |       validTxn.addInput(initialTxn);
117 |       validTxn.addOutput('client1', 7);
118 | 
119 |       client1.onReceivingTransaction(validTxn, 'client1')
120 |       expect(client1.unvalidatedTransactions).to.deep.equal([validTxn]);
121 |       stub.restore();
122 |     });
123 |     it('does not store new transaction if invalid', function(){
124 |       var stub = sinon.stub(Client.prototype, 'verify', function(){ return false; });
125 |       var invalidTxn = new Transaction('invalid');
126 |       invalidTxn.addOutput('otherClient', 10);
127 |       var client1 = new Client('client1');
128 |       client1.onReceivingTransaction(invalidTxn, 'client1')
129 |       expect(client1.unvalidatedTransactions).to.deep.equal([]);
130 |       stub.restore();
131 |     });
132 |   });
133 | 
134 |   context('.verify transaction', function(){
135 |     it('returns true for valid transactions', function(){
136 |       var client1 = new Client('client1');
137 |       var initialTxn = new Transaction('coinbase');
138 |       initialTxn.addOutput('client1', 7);
139 |       client1.unusedValidTransactions[initialTxn.id] = initialTxn;
140 | 
141 |       var validTxn = new Transaction(client1);
142 |       validTxn.addInput(initialTxn);
143 |       validTxn.addOutput('client1', 7);
144 |       expect(client1.verify(validTxn)).to.be.true;
145 |     });
146 |     it('returns false for invalid transactions', function(){
147 |       var client1 = new Client('client1');
148 |       var invalidTxn = new Transaction('invalid');
149 |       invalidTxn.addOutput('overspend', 1);
150 |       expect(client1.verify(invalidTxn)).to.be.false;
151 |     });
152 |   });
153 | 
154 |   context('.mine finds and broadcasts a solution to the proof-of-work problem', function(){
155 |     it('solves the proof-of-work problem', function(){
156 |       var client1 = new Client('client1');
157 |       var solution = client1.mine();
158 |       expect(client1.validateSolution(solution)).to.be.true;
159 |     });
160 |     it('broadcasts proof-of-work solution when found', function(){
161 |       // setup
162 |       var realFunc = Client.prototype.broadcastSolution;
163 |       var calledWithArguments;
164 |       Client.prototype.broadcastSolution = function(){
165 |         calledWithArguments = arguments;
166 |       };
167 |       // test
168 |       var client1 = new Client('client1');
169 |       var txns = ['some','unvalidated','transactions'];
170 |       client1.unvalidatedTransactions = txns;
171 |       var solution = client1.mine();
172 |       expect(calledWithArguments[0]).to.equal(solution);
173 |       expect(calledWithArguments[1]).to.equal(txns);
174 |       // teardown
175 |       Client.prototype.broadcastSolution = realFunc;
176 |     });
177 |   });
178 | 
179 |   context('.broadcastSolution broadcasts a solution and a list of transactions', function(){
180 |     it('broadcasts solution and unvalidated transactions to clients', function(){
181 |       // setup
182 |       var realFunc = Client.prototype.onReceivingSolution;
183 |       var calledWithArguments;
184 |       Client.prototype.onReceivingSolution = function(){
185 |         calledWithArguments = arguments;
186 |       };
187 |       // test
188 |       var client1 = new Client('client1');
189 |       var txns = ['some','unvalidated','transactions'];
190 |       client1.broadcastSolution(0.15, txns)
191 |       expect(calledWithArguments[0]).to.equal(0.15);
192 |       expect(calledWithArguments[1]).to.deep.equal(txns);
193 |       // teardown
194 |       Client.prototype.onReceivingSolution = realFunc;
195 |     });
196 |     it('sends a copy of the transactions, not the originals', function(){
197 |       // setup
198 |       var realFunc = Client.prototype.onReceivingSolution;
199 |       var calledWithArguments;
200 |       Client.prototype.onReceivingSolution = function(){
201 |         calledWithArguments = arguments;
202 |       };
203 |       // test
204 |       var client1 = new Client('client1');
205 |       var txns = ['original','unvalidated','transactions'];
206 |       client1.broadcastSolution(0.15, txns)
207 |       txns = ['original','unvalidated','transactions'];
208 |       expect(calledWithArguments[1]).to.deep.equal(['original','unvalidated','transactions']);
209 |       // teardown
210 |       Client.prototype.onReceivingSolution = realFunc;
211 |     });
212 |   });
213 | 
214 |   context('.onReceivingSolution validates solution, transactions, and updates blockchain', function(){
215 |     it('.validateSolution verifies received proof-of-work', function(){
216 |       var validSolution = 0.1;
217 |       var invalidSolution = 0.9;
218 |       var client1 = new Client('client1');
219 |       expect(client1.validateSolution(validSolution)).to.be.true;
220 |       expect(client1.validateSolution(invalidSolution)).to.be.false;
221 |     });
222 |     it('generates and records a reward for the solver', function(){
223 |       // setup
224 |       var realFunc = Client.prototype.generateRewardTransaction;
225 |       var rewardTxn;
226 |       Client.prototype.generateRewardTransaction = function(soln,id,amt){
227 |         rewardTxn = realFunc(soln, id, amt);
228 |         return rewardTxn;
229 |       };
230 |       // test
231 |       var client1 = new Client('client1');
232 |       client1.onReceivingSolution(0.1, [], client1.id); //todo allow mining on zero transactions?
233 |       expect(rewardTxn.sender).to.equal('coinbase');
234 |       expect(rewardTxn.outputs[0].amount).to.be.above(0);
235 |       expect(rewardTxn.outputs[0].destination).to.equal(client1.id);
236 |       // teardown
237 |       Client.prototype.generateRewardTransaction = realFunc;
238 |     });
239 |     it('updates unusedValid & unvalidated transactions lists', function(){
240 |       // setup
241 |       var stubVerify = sinon.stub(Client.prototype, 'verify', function(){ return true; });
242 |       var realFunc = Client.prototype.generateRewardTransaction;
243 |       var rewardTxn;
244 |       Client.prototype.generateRewardTransaction = function(soln,id,amt){
245 |         rewardTxn = realFunc(soln, id, amt);
246 |         return rewardTxn;
247 |       };
248 |       var client1 = new Client('client1');
249 |       var initialTxn = new Transaction('coinbase');
250 |       var unvalidatedTxn = new Transaction(client1);
251 |       client1.unusedValidTransactions[initialTxn.id] = initialTxn;
252 |       client1.unvalidatedTransactions = [unvalidatedTxn];
253 |       // test
254 |       expect(client1.unusedValidTransactions[initialTxn.id]).to.deep.equal(initialTxn);
255 |       expect(client1.unvalidatedTransactions).to.deep.equal([unvalidatedTxn]);
256 |       client1.onReceivingSolution(0.1, [unvalidatedTxn], client1.id);
257 |       expect(client1.unusedValidTransactions[rewardTxn.id]).to.deep.equal(rewardTxn);
258 |       expect(client1.unvalidatedTransactions).to.deep.equal([]);
259 |       // teardown
260 |       Client.prototype.generateRewardTransaction = realFunc;
261 |       stubVerify.restore();
262 |     });
263 |     it('does not update transactions lists if solution is invalid', function(){
264 |       var client1 = new Client('client1');
265 |       var unvalidatedTxn = new Transaction(client1);
266 |       client1.unvalidatedTransactions = [unvalidatedTxn];
267 | 
268 |       client1.onReceivingSolution('bad solution', [unvalidatedTxn], client1.id);
269 |       expect(client1.unusedValidTransactions).to.deep.equal({});
270 |       expect(client1.unvalidatedTransactions).to.deep.equal([unvalidatedTxn]);
271 |     });
272 |     it('does not update transactions lists if transactions are invalid', function(){
273 |       var client1 = new Client('client1');
274 |       var unvalidatedTxn = new Transaction(client1);
275 |       unvalidatedTxn.addOutput('client1', 1);
276 |       client1.unvalidatedTransactions = [unvalidatedTxn];
277 | 
278 |       client1.onReceivingSolution(0.1, [unvalidatedTxn], client1.id);
279 |       expect(client1.unusedValidTransactions).to.deep.equal({});
280 |       expect(client1.unvalidatedTransactions).to.deep.equal([unvalidatedTxn]);
281 |     });
282 |   });
283 | 
284 |   xcontext('Client scenarios', function(){
285 |     it('can give an amount to another client', function(){expect(false).to.be.true;});
286 |     it('cannot double-spend', function(){expect(false).to.be.true;});
287 |     it('handles receiving concurrent solutions', function(){expect(false).to.be.true;});
288 |     it('validates another proof-of-work solution', function(){expect(false).to.be.true;});
289 |   });
290 | });
291 | 
292 | xdescribe('Transaction', function(){
293 |   it('uses previous transactions as inputs', function(){expect(false).to.be.true;});
294 |   it('has a list of destination/amounts as outputs', function(){expect(false).to.be.true;});
295 |   it('has a unique id', function(){expect(false).to.be.true;});
296 |   it('knows who created the transaction', function(){expect(false).to.be.true;});
297 | });
298 | 


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/lib/tweetit.js:
--------------------------------------------------------------------------------
 1 | window.tweetit = function(){
 2 | 
 3 |   var twitterHtml = {
 4 |     button: 'You finished!<br><a style="margin: 0px auto" href="https://twitter.com/share" class="twitter-share-button" data-size="large" data-dnt="true" data-count="none" data-text="Just finished writing a clone algorithm!! cc @HackReactor" data-via="HackReactor">Tweet</a>',
 5 |     script: '<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="https://platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs");</script>'
 6 |   };
 7 | 
 8 |   window.picoModal(twitterHtml.button);
 9 | 
10 |   // twitter's script tag must be wrapped in a setTimeout and separated from
11 |   // the above line, or it doesn't work.
12 |   setTimeout(function(){
13 |     $('body').append(twitterHtml.script);
14 |   }, 0);
15 | 
16 | };
17 | 


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/lib/underscore-min.js:
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/spec-runner.html:
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 1 | <!DOCTYPE html>
 2 | <html>
 3 |   <head>
 4 |     <title>Algorithms Meetup Test Suite [Mocha]</title>
 5 |     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 6 |     <link rel="stylesheet" href="lib/mocha.css" />
 7 |     <script src="lib/jquery.js"></script>
 8 |     <script src="lib/picomodal.js"></script>
 9 |     <script src="lib/tweetit.js"></script>
10 |     <script src="lib/expect.js"></script>
11 |     <script src="lib/mocha.js"></script>
12 |     <script src="lib/chai.js"></script>
13 |     <script src="lib/sinon.js"></script>
14 | 
15 |     <script>
16 |       // Tell mocha to use bdd-style expects
17 |       mocha.setup('bdd');
18 |     </script>
19 | 
20 |     <!-- Load tests and helpers here -->
21 |     <script src="src.js"></script>
22 |     <script src="lib/spec.js"></script>
23 | 
24 |     <script>
25 |       // Mocha expects a global onload var here and automagically executes it on pageload
26 |       mocha.setup({globals: ['answer', 'cache1', 'cache2']});
27 | 
28 |       onload = function(){
29 |         var runner = mocha.run();
30 |         runner.on('end', function() {
31 |           if(!this.failures){
32 |             // window.tweetit();
33 |           }
34 |         });
35 |       };
36 |     </script>
37 |   </head>
38 |   <body>
39 |     <div id="mocha"></div>
40 |   </body>
41 | </html>
42 | 


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/src.js:
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  1 | var alice = new Client('alice');
  2 | var bob = new Client('bob');
  3 | var carl = new Client('carl');
  4 | var clients = [alice, bob, carl];
  5 | 
  6 | /*
  7 |  * DO NOT EDIT
  8 |  */
  9 | function Client (id){
 10 |   this.id = id; // id == public key == address
 11 |   this.unusedValidTransactions = {}; // blockchain, contains SHAs // todo convert to array?
 12 |   this.unvalidatedTransactions = []; // need to validate these.
 13 | };
 14 | /*
 15 |  * PLEASE EDIT
 16 |  * params: clientId, amount
 17 |  * returns: Transaction
 18 |  * behavior: constructs a Transaction giving the amount to the clientId and the rest of the balance back to thisClient.
 19 |  */
 20 | Client.prototype.give = function(clientId, amount) {
 21 | 
 22 |   return transaction;
 23 |   // helper (DO NOT EDIT)
 24 |   function arrayify(obj){
 25 |     return Object.keys(obj).reduce(function(result, key){
 26 |       result.push(obj[key]);
 27 |       return result;
 28 |     }, []);
 29 |   }
 30 | };
 31 | /*
 32 |  * PLEASE EDIT
 33 |  * params: Transaction
 34 |  * returns: null
 35 |  * behavior: invokes onReceivingTransaction for each client in the global list of clients.
 36 |  */
 37 | Client.prototype.broadcastTransaction = function(transaction){
 38 | 
 39 | };
 40 | /*
 41 |  * PLEASE EDIT
 42 |  * dependencies: Client.prototype.verify
 43 |  * params: Transaction, String
 44 |  * returns: null
 45 |  * behavior: if the transaction is valid, adds it to unvalidatedTransactions.
 46 |  */
 47 | Client.prototype.onReceivingTransaction = function(transaction, senderId){
 48 | 
 49 | };
 50 | /*
 51 |  * PLEASE EDIT
 52 |  * dependencies: Client.prototype.validateSolution
 53 |  * params: null
 54 |  * returns: Number
 55 |  * behavior: generates a solution to the proof-of-work problem (for which client.verify returns true) and broadcasts it along with unvalidated transactions to all clients.
 56 |  */
 57 | Client.prototype.mine = function(){
 58 | 
 59 |   return solution;
 60 | };
 61 | /*
 62 |  * PLEASE EDIT
 63 |  * params: Number, Transaction
 64 |  * returns: null
 65 |  * behavior: broadcasts solution, a copy of unvalidatedTransactions, and thisClient's id to all clients.
 66 |  */
 67 | Client.prototype.broadcastSolution = function(solution, transactions){
 68 | 
 69 | };
 70 | /*
 71 |  * PLEASE EDIT
 72 |  * params: Number, Transaction, String
 73 |  * returns: null
 74 |  * behavior: if solution and transactions are valid, generates a reward for the solver then invokes updateBlockchain.
 75 |  */
 76 | Client.prototype.onReceivingSolution = function(solution, transactions, solverId){
 77 | 
 78 |   // helpers (DO NOT EDIT)
 79 |   function verifyAll(transactions){
 80 |     return transactions.reduce(function(transactionsValid, transaction){
 81 |       return transactionsValid && thisClient.verify(transaction);
 82 |     }, true);
 83 |   }
 84 |   function updateBlockchain(transactions){
 85 |     transactions.forEach(function(transaction){
 86 |       deleteUsedInputTransactions(transaction) // todo other dest?
 87 |       thisClient.unusedValidTransactions[transaction.id] = transaction;
 88 |       // clear txn from unvalidatedTransactions
 89 |       var i = thisClient.unvalidatedTransactions.indexOf(transaction);
 90 |       if(i >= 0){
 91 |         thisClient.unvalidatedTransactions.splice(i, 1);
 92 |       }
 93 |     });
 94 |     function deleteUsedInputTransactions(transaction){
 95 |       transaction.inputs.forEach(function(inputTransaction){
 96 |         delete thisClient.unusedValidTransactions[inputTransaction.id];
 97 |       });
 98 |     }
 99 |   }
100 | };
101 | /*
102 |  * PLEASE EDIT
103 |  * params: null
104 |  * returns: Number
105 |  * behavior: iterates through unusedValidTransactions, summing the amounts transactions sent to thisClient.
106 |  */
107 | Client.prototype.balance = function(){
108 | 
109 | };
110 | /*
111 |  * PLEASE EDIT
112 |  * params: Transaction
113 |  * returns: Boolean
114 |  * behavior: determines if Transaction's inputs and outputs are valid.
115 |  */
116 | Client.prototype.verify = function(transaction){
117 |   // each input must be valid, unused, and name the sender as a destination
118 | 
119 |   return isTransactionValid;
120 | };
121 | /*
122 |  * DO NOT EDIT
123 |  */
124 | Client.prototype.validateSolution = function(solution){
125 |   return solution < 0.2;
126 |   //
127 | };
128 | /*
129 |  * DO NOT EDIT
130 |  */
131 | Client.prototype.generateRewardTransaction = function(solution, id, amount){
132 |   var txn = new Transaction('coinbase', 'reward'+solution); // same SHA for a given solution
133 |   txn.addOutput(id, amount);
134 |   return txn;
135 | };
136 | 
137 | /*
138 |  * DO NOT EDIT any of the Transaction methods.
139 |  */
140 | function Transaction(sender){
141 |   this.sender = sender;
142 |   this.id = 'transfer'+Math.random();
143 |   this.inputs = [];
144 |   this.outputs = [];
145 | }
146 | Transaction.prototype.addInput = function(inputTransaction){ //should be valid and unused
147 |   this.inputs.push(inputTransaction);
148 |   //
149 | };
150 | Transaction.prototype.addOutput = function(publicKey, amount){
151 |   this.outputs.push({amount:amount, destination:publicKey}); // destination can be thisClient
152 |   //
153 | };
154 | // txn verification helper functions
155 | Transaction.prototype.outputsValid = function(){
156 |   var outputsSum = this.outputs.reduce(function(sum, output){
157 |     return sum += output.amount;
158 |   }, 0);
159 |   return this.inputsSumToSender(this.sender.id) - outputsSum >= 0;
160 |   // todo make === not >= ; difference would be fee to miner
161 | };
162 | Transaction.prototype.inputsValid = function(unusedValidTransactions){
163 |   var sender = this.sender;
164 |   // for each input
165 |   return this.inputs.reduce(function(isValid, inputTransaction){
166 |     return isValid
167 |       // input transaction is valid and hasn't been used to source another txn yet
168 |       && unusedValidTransactions[inputTransaction.id]
169 |       // input transactions sent > 0 coins to sender
170 |       && inputTransaction.sumToDestination(sender.id) > 0;
171 |   }, true);
172 | };
173 | Transaction.prototype.inputsSumToSender = function(clientId){
174 |   return this.inputs.reduce(function(sum, inputTransaction){
175 |     return sum += inputTransaction.sumToDestination(clientId);
176 |   }, 0);
177 | };
178 | Transaction.prototype.sumToDestination = function(clientId){
179 |   return this.outputs.reduce(function(sum, output){
180 |     return sum += output.destination === clientId ? output.amount : 0;
181 |   }, 0);
182 | };
183 | 
184 | // var initialTxn = alice.generateRewardTransaction(0, 'alice', 10); // how does this really happen?
185 | // alice.unusedValidTransactions[initialTxn.id] = initialTxn;
186 | // bob.unusedValidTransactions[initialTxn.id] = initialTxn;
187 | // carl.unusedValidTransactions[initialTxn.id] = initialTxn;
188 | // console.log('alice given initial amount 10 via',initialTxn.id);
189 | 
190 | // alice.give('bob', 1);
191 | // alice.give('carl', 2);
192 | // alice.give('alice', 3);
193 | // carl.mine();
194 | 


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