Added

- support for web worker. #11

Changed
- throw error if input type is incorrect.
- prevent webpack to require dependencies.

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Change Log
 
+## v0.5.0 / 2017-07-14
+### Added
+- support for web worker. #11
+
+### Changed
+- throw error if input type is incorrect.
+- prevent webpack to require dependencies.
+
 ## v0.4.2 / 2017-01-18
 ### Fixed
 - `root` is undefined in some special environment. #7

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "js-md5",
-  "version": "0.4.2",
+  "version": "0.5.0",
   "main": ["src/md5.js"],
   "ignore": [
     "tests"

doc/Md5_.html

@@ -91,7 +91,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line141">line 141</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line162">line 162</a>
     </li></ul></dd>
     
 
@@ -198,7 +198,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line523">line 523</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line556">line 556</a>
     </li></ul></dd>
     
 
@@ -314,7 +314,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line535">line 535</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line568">line 568</a>
     </li></ul></dd>
     
 
@@ -432,7 +432,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line557">line 557</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line590">line 590</a>
     </li></ul></dd>
     
 
@@ -548,7 +548,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line501">line 501</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line534">line 534</a>
     </li></ul></dd>
     
 
@@ -664,7 +664,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line456">line 456</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line489">line 489</a>
     </li></ul></dd>
     
 
@@ -780,7 +780,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line489">line 489</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line522">line 522</a>
     </li></ul></dd>
     
 
@@ -954,7 +954,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line169">line 169</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line190">line 190</a>
     </li></ul></dd>
     
 
@@ -1031,7 +1031,7 @@
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.3</a> on Wed Jan 18 2017 09:43:27 GMT+0800 (CST)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.3</a> on Fri Jul 14 2017 12:58:59 GMT+0800 (CST)
 </footer>
 
 <script> prettyPrint(); </script>

doc/global.html

@@ -210,7 +210,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line575">line 575</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line608">line 608</a>
     </li></ul></dd>
     
 
@@ -285,7 +285,7 @@
 
 
 
-</div>
+</div>
 
 <nav>
     <h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="Md5_.html">Md5</a></li></ul><h3>Namespaces</h3><ul><li><a href="md5.html">md5</a></li></ul><h3>Global</h3><ul><li><a href="global.html#md5%2508">md5</a></li></ul>

doc/index.html

@@ -95,7 +95,7 @@ md5.buffer(''); // ArrayBuffer, deprecated, This maybe confuse with Buffer in no
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.3</a> on Wed Jan 18 2017 09:43:27 GMT+0800 (CST)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.3</a> on Fri Jul 14 2017 12:58:59 GMT+0800 (CST)
 </footer>
 
 <script> prettyPrint(); </script>

doc/md5.html

@@ -47,7 +47,7 @@
 
     
     <dt class="tag-version">Version:</dt>
-    <dd class="tag-version"><ul class="dummy"><li>0.4.2</li></ul></dd>
+    <dd class="tag-version"><ul class="dummy"><li>0.5.0</li></ul></dd>
     
 
     
@@ -233,7 +233,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line53">line 53</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line67">line 67</a>
     </li></ul></dd>
     
 
@@ -400,7 +400,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line62">line 62</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line76">line 76</a>
     </li></ul></dd>
     
 
@@ -569,7 +569,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line71">line 71</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line85">line 85</a>
     </li></ul></dd>
     
 
@@ -678,7 +678,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line87">line 87</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line101">line 101</a>
     </li></ul></dd>
     
 
@@ -845,7 +845,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line44">line 44</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line58">line 58</a>
     </li></ul></dd>
     
 
@@ -1012,7 +1012,7 @@
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line33">line 33</a>
+        <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line47">line 47</a>
     </li></ul></dd>
     
 
@@ -1179,7 +1179,7 @@
     
 
     
-    <dt class="tag-source">Source:</dt>
+    <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
         <a href="md5.js.html">md5.js</a>, <a href="md5.js.html#line109">line 109</a>
     </li></ul></dd>
@@ -1254,7 +1254,7 @@
 
 <nav>
     <h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="Md5_.html">Md5</a></li></ul><h3>Namespaces</h3><ul><li><a href="md5.html">md5</a></li></ul><h3>Global</h3><ul><li><a href="global.html#md5%2508">md5</a></li></ul>
-</nav>
+</nav>
 
 <br class="clear">
 

doc/md5.js.html

@@ -30,7 +30,7 @@
  * [js-md5]{@link https://github.com/emn178/js-md5}
  *
  * @namespace md5
- * @version 0.4.2
+ * @version 0.5.0
  * @author Chen, Yi-Cyuan [emn178@gmail.com]
  * @copyright Chen, Yi-Cyuan 2014-2017
  * @license MIT
@@ -38,10 +38,18 @@
 (function () {
   'use strict';
 
-  var root = typeof window === 'object' ? window : {};
+  var ERROR = 'input is invalid type';
+  var WINDOW = typeof window === 'object';
+  var root = WINDOW ? window : {};
+  if (root.JS_MD5_NO_WINDOW) {
+    WINDOW = false;
+  }
+  var WEB_WORKER = !WINDOW && typeof self === 'object';
   var NODE_JS = !root.JS_MD5_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
   if (NODE_JS) {
     root = global;
+  } else if (WEB_WORKER) {
+    root = self;
   }
   var COMMON_JS = !root.JS_MD5_NO_COMMON_JS && typeof module === 'object' && module.exports;
   var AMD = typeof define === 'function' && define.amd;
@@ -58,6 +66,12 @@
     blocks = new Uint32Array(buffer);
   }
 
+  if (root.JS_MD5_NO_NODE_JS || !Array.isArray) {
+    Array.isArray = function (obj) {
+      return Object.prototype.toString.call(obj) === '[object Array]';
+    };
+  }
+
   /**
    * @method hex
    * @memberof md5
@@ -151,17 +165,24 @@
   };
 
   var nodeWrap = function (method) {
-    var crypto = require('crypto');
-    var Buffer = require('buffer').Buffer;
+    var crypto = eval("require('crypto')");
+    var Buffer = eval("require('buffer').Buffer");
     var nodeMethod = function (message) {
       if (typeof message === 'string') {
         return crypto.createHash('md5').update(message, 'utf8').digest('hex');
+      } else {
+        if (message === null || message === undefined) {
+          throw ERROR;
         } else if (message.constructor === ArrayBuffer) {
           message = new Uint8Array(message);
-      } else if (message.length === undefined) {
+        }
+      }
+      if (Array.isArray(message) || ArrayBuffer.isView(message) ||
+        message.constructor === Buffer) {
+        return crypto.createHash('md5').update(new Buffer(message)).digest('hex');
+      } else {
         return method(message);
       }
-      return crypto.createHash('md5').update(new Buffer(message)).digest('hex');
     };
     return nodeMethod;
   };
@@ -208,10 +229,22 @@
       return;
     }
     var notString = typeof(message) != 'string';
-    if (notString && message.constructor == root.ArrayBuffer) {
+    if (notString) {
+      if (message === null || message === undefined) {
+        throw ERROR;
+      } else if (message.constructor === root.ArrayBuffer) {
         message = new Uint8Array(message);
       }
-    var code, index = 0, i, length = message.length || 0, blocks = this.blocks;
+    }
+    var length = message.length;
+    if (notString) {
+      if (typeof length !== 'number' ||
+        !Array.isArray(message) && 
+        !(ARRAY_BUFFER && ArrayBuffer.isView(message))) {
+        throw ERROR;
+      }
+    }
+    var code, index = 0, i, blocks = this.blocks;
     var buffer8 = this.buffer8;
 
     while (index < length) {
@@ -641,7 +674,7 @@
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.3</a> on Wed Jan 18 2017 09:43:27 GMT+0800 (CST)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.3</a> on Fri Jul 14 2017 12:58:59 GMT+0800 (CST)
 </footer>
 
 <script> prettyPrint(); </script>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "js-md5",
-  "version": "0.4.2",
+  "version": "0.5.0",
   "description": "A simple MD5 hash function for JavaScript supports UTF-8 encoding.",
   "main": "src/md5.js",
   "devDependencies": {
@@ -9,7 +9,8 @@
     "jsdoc": "^3.4.0",
     "mocha": "~2.3.4",
     "requirejs": "^2.1.22",
-    "uglifyjs": "~2.4.10"
+    "uglifyjs": "~2.4.10",
+    "webworker-threads": "^0.7.11"
   },
   "scripts": {
     "test": "mocha tests/node-test.js -r jscoverage",

src/md5.js

@@ -2,7 +2,7 @@
  * [js-md5]{@link https://github.com/emn178/js-md5}
  *
  * @namespace md5
- * @version 0.4.2
+ * @version 0.5.0
  * @author Chen, Yi-Cyuan [emn178@gmail.com]
  * @copyright Chen, Yi-Cyuan 2014-2017
  * @license MIT
@@ -10,10 +10,18 @@
 (function () {
   'use strict';
 
-  var root = typeof window === 'object' ? window : {};
+  var ERROR = 'input is invalid type';
+  var WINDOW = typeof window === 'object';
+  var root = WINDOW ? window : {};
+  if (root.JS_MD5_NO_WINDOW) {
+    WINDOW = false;
+  }
+  var WEB_WORKER = !WINDOW && typeof self === 'object';
   var NODE_JS = !root.JS_MD5_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
   if (NODE_JS) {
     root = global;
+  } else if (WEB_WORKER) {
+    root = self;
   }
   var COMMON_JS = !root.JS_MD5_NO_COMMON_JS && typeof module === 'object' && module.exports;
   var AMD = typeof define === 'function' && define.amd;
@@ -30,6 +38,12 @@
     blocks = new Uint32Array(buffer);
   }
 
+  if (root.JS_MD5_NO_NODE_JS || !Array.isArray) {
+    Array.isArray = function (obj) {
+      return Object.prototype.toString.call(obj) === '[object Array]';
+    };
+  }
+
   /**
    * @method hex
    * @memberof md5
@@ -123,17 +137,24 @@
   };
 
   var nodeWrap = function (method) {
-    var crypto = require('crypto');
-    var Buffer = require('buffer').Buffer;
+    var crypto = eval("require('crypto')");
+    var Buffer = eval("require('buffer').Buffer");
     var nodeMethod = function (message) {
       if (typeof message === 'string') {
         return crypto.createHash('md5').update(message, 'utf8').digest('hex');
+      } else {
+        if (message === null || message === undefined) {
+          throw ERROR;
         } else if (message.constructor === ArrayBuffer) {
           message = new Uint8Array(message);
-      } else if (message.length === undefined) {
+        }
+      }
+      if (Array.isArray(message) || ArrayBuffer.isView(message) ||
+        message.constructor === Buffer) {
+        return crypto.createHash('md5').update(new Buffer(message)).digest('hex');
+      } else {
         return method(message);
       }
-      return crypto.createHash('md5').update(new Buffer(message)).digest('hex');
     };
     return nodeMethod;
   };
@@ -180,10 +201,22 @@
       return;
     }
     var notString = typeof(message) != 'string';
-    if (notString && message.constructor == root.ArrayBuffer) {
+    if (notString) {
+      if (message === null || message === undefined) {
+        throw ERROR;
+      } else if (message.constructor === root.ArrayBuffer) {
         message = new Uint8Array(message);
       }
-    var code, index = 0, i, length = message.length || 0, blocks = this.blocks;
+    }
+    var length = message.length;
+    if (notString) {
+      if (typeof length !== 'number' ||
+        !Array.isArray(message) && 
+        !(ARRAY_BUFFER && ArrayBuffer.isView(message))) {
+        throw ERROR;
+      }
+    }
+    var code, index = 0, i, blocks = this.blocks;
     var buffer8 = this.buffer8;
 
     while (index < length) {

tests/node-test.js

@@ -1,5 +1,8 @@
-// Node.js env
 expect = require('expect.js');
+Worker = require('webworker-threads').Worker;
+
+// Node.js env
+BUFFER = true;
 md5 = require('../src/md5.js');
 require('./test.js');
 
@@ -9,6 +12,7 @@ md5 = null
 
 // Webpack browser env
 JS_MD5_NO_NODE_JS = true;
+BUFFER = false;
 window = global;
 md5 = require('../src/md5.js');
 require('./test.js');
@@ -20,6 +24,7 @@ md5 = null;
 // browser env
 JS_MD5_NO_NODE_JS = true;
 JS_MD5_NO_COMMON_JS = true;
+BUFFER = false;
 window = global;
 require('../src/md5.js');
 require('./test.js');
@@ -32,6 +37,7 @@ md5 = null;
 JS_MD5_NO_NODE_JS = true;
 JS_MD5_NO_COMMON_JS = true;
 JS_MD5_NO_ARRAY_BUFFER = true;
+BUFFER = false;
 window = global;
 require('../src/md5.js');
 require('./test.js');
@@ -44,6 +50,7 @@ md5 = null;
 JS_MD5_NO_NODE_JS = true;
 JS_MD5_NO_COMMON_JS = true;
 JS_MD5_NO_ARRAY_BUFFER = false;
+BUFFER = false;
 window = global;
 define = function (func) {
   md5 = func();
@@ -52,3 +59,42 @@ define = function (func) {
 define.amd = true;
 
 require('../src/md5.js');
+
+delete require.cache[require.resolve('../src/md5.js')];
+delete require.cache[require.resolve('./test.js')];
+md5 = null;
+
+// webworker
+WORKER = 'tests/worker.js';
+SOURCE = 'src/md5.js';
+
+require('./worker-test.js');
+
+// cover webworker
+JS_MD5_NO_WINDOW = true;
+JS_MD5_NO_NODE_JS = true;
+JS_MD5_NO_COMMON_JS = false;
+JS_MD5_NO_ARRAY_BUFFER = false;
+BUFFER = false;
+WORKER = './worker.js';
+SOURCE = '../src/md5.js';
+window = global;
+self = global;
+
+Worker = function (file) {
+  require(file);
+  currentWorker = this;
+
+  this.postMessage = function (data) {
+    onmessage({data: data});
+  };
+}
+
+postMessage = function (data) {
+  currentWorker.onmessage({data: data});
+}
+
+importScripts = function () {};
+
+md5 = require('../src/md5.js');
+require('./worker-test.js');

tests/test.js

@@ -42,29 +42,30 @@
       'd41d8cd98f00b204e9800998ecf8427e': [],
       '93b885adfe0da089cdf634904fd59f71': [0],
       '9e107d9d372bb6826bd81d3542a419d6': [84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]
-    },
-    'Uint8Array': {
-      '9e107d9d372bb6826bd81d3542a419d6': new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103])
-    },
-    'Int8Array': {
-      '9e107d9d372bb6826bd81d3542a419d6': new Int8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103])
-    },
-    'ArrayBuffer': {
-      '93b885adfe0da089cdf634904fd59f71': new ArrayBuffer(1)
-    },
-    'Object': {
-      'd41d8cd98f00b204e9800998ecf8427e': {},
-      'd41d8cd98f00b204e9800998ecf8427e': {what: 'ever'}
     }
   };
 
-  if (typeof process == 'object') {
+  if (!(typeof JS_MD5_NO_ARRAY_BUFFER === 'boolean' && JS_MD5_NO_ARRAY_BUFFER)) {
+    testCases['Uint8Array'] = {
+      '9e107d9d372bb6826bd81d3542a419d6': new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103])
+    };
+    testCases['Int8Array'] = {
+      '9e107d9d372bb6826bd81d3542a419d6': new Int8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103])
+    };
+    testCases['ArrayBuffer'] = {
+      '93b885adfe0da089cdf634904fd59f71': new ArrayBuffer(1)
+    };
+  }
+
+  if (typeof BUFFER === 'boolean' && BUFFER) {
     testCases['Buffer'] = {
       'd41d8cd98f00b204e9800998ecf8427e': new Buffer(0),
       '9e107d9d372bb6826bd81d3542a419d6': new Buffer(new Uint8Array([84, 104, 101, 32, 113, 117, 105, 99, 107, 32, 98, 114, 111, 119, 110, 32, 102, 111, 120, 32, 106, 117, 109, 112, 115, 32, 111, 118, 101, 114, 32, 116, 104, 101, 32, 108, 97, 122, 121, 32, 100, 111, 103]))
     }
   }
 
+  var errorTestCases = [null, undefined, { length: 0 }, 0, 1, false, true, NaN, Infinity, function () {}];
+
   var methods = [
     {
       name: 'md5',
@@ -154,6 +155,7 @@
     }
   ];
 
+  describe('md5', function () {
     methods.forEach(function (method) {
       describe('#' + method.name, function () {
         for (var testCaseName in testCases) {
@@ -173,7 +175,6 @@
       });
     });
 
-  describe('Md5', function () {
     classMethods.forEach(function (method) {
       describe('#' + method.name, function () {
         for (var testCaseName in testCases) {
@@ -192,5 +193,17 @@
         }
       });
     });
+
+    describe('#md5', function () {
+      errorTestCases.forEach(function (testCase) {
+        context('when ' + testCase, function () {
+          it('should throw error', function () {
+            expect(function () {
+              md5(testCase);
+            }).to.throwError(/input is invalid type/);
+          });
+        });
+      });
+    });
   });
 })(md5);

tests/worker-test.js

@@ -0,0 +1,21 @@
+(function () {
+  var cases = {
+    'd41d8cd98f00b204e9800998ecf8427e': '',
+    '9e107d9d372bb6826bd81d3542a419d6': 'The quick brown fox jumps over the lazy dog',
+    'e4d909c290d0fb1ca068ffaddf22cbd0': 'The quick brown fox jumps over the lazy dog.'
+  };
+
+  describe('#md5', function () {
+    Object.keys(cases).forEach(function (hash) {
+      it('should be equal', function (done) {
+        var worker = new Worker(WORKER);
+        worker.onmessage = function(event) {
+          expect(event.data).to.be(hash);
+          done();
+        };
+        worker.postMessage(SOURCE);
+        worker.postMessage(cases[hash]);
+      });
+    });
+  });
+})();

tests/worker.html

@@ -0,0 +1,26 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>MD5</title>
+  <link rel="stylesheet" href="../node_modules/mocha/mocha.css">
+  <script src="../node_modules/mocha/mocha.js"></script>
+  <script src="../node_modules/expect.js/index.js"></script>
+  <script src="../src/md5.js"></script>
+</head>
+<body>
+  <div id="mocha"></div>
+  <script>
+    WORKER = 'worker.js';
+    SOURCE = '../src/md5.js';
+    mocha.setup('bdd');
+  </script>
+  <script src="worker-test.js"></script>
+  <script>
+    mocha.checkLeaks();
+    mocha.run();
+  </script>
+  <script>
+  </script>
+</body>
+</html>

tests/worker.js

@@ -0,0 +1,12 @@
+var imported = false;
+onmessage = function(e) {
+  if (imported) {
+    postMessage(md5(e.data));
+    if (typeof exports !== 'undefined') {
+      imported = false;
+    }
+  } else {
+    imported = true;
+    importScripts(e.data);
+  }
+}