object-hash - npm Package Compare versions

Comparing version 0.9.5 to 1.0.0

dist/object_hash.js

@@ -1,2 +0,2 @@
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index.js

 'use strict';
 
 var crypto = require('crypto');
+var stream = require('stream');
 
@@ -13,2 +14,4 @@ /**
  *  - `encoding` hash encoding, supports 'buffer', '*hex', 'binary', 'base64' 
+ *  - `ignoreUnknown` {true|*false} ignore unknown object types
+ *  - `replacer` optional function that replaces values before hashing
  *  - `respectFunctionProperties` {*true|false} consider function properties when hashing
@@ -18,8 +21,8 @@ *  - `respectType` {*true|false} Respect special properties (prototype, constructor)
  *  - `unorderedArrays` {true|*false} Sort all arrays before hashing
- *  - `unorderedSets` {true|*false} Sort `Set` and `Map` instances before hashing
+ *  - `unorderedSets` {*true|false} Sort `Set` and `Map` instances before hashing
  *  * = default
  *
- * @param {object} value to hash
- * @param {options} hashing options
- * @return {hash value}
+ * @param {object} object value to hash
+ * @param {object} options hashing options
+ * @return {string} hash value
  * @api public
@@ -30,15 +33,4 @@ */
 function objectHash(object, options){
-  options = options || {};
-  options.algorithm = options.algorithm || 'sha1';
-  options.encoding = options.encoding || 'hex';
-  options.excludeValues = options.excludeValues ? true : false;
-  options.algorithm = options.algorithm.toLowerCase();
-  options.encoding = options.encoding.toLowerCase();
-  options.respectType = options.respectType === false ? false : true; // default to true
-  options.respectFunctionProperties = options.respectFunctionProperties === false ? false : true;
-  options.unorderedArrays = options.unorderedArrays !== true ? false : true; // default to false
-  options.unorderedSets = options.unorderedSets !== true ? false : true; // default to false
+  options = applyDefaults(object, options);
 
-  validate(object, options);
-
   return hash(object, options);
@@ -50,4 +42,4 @@ }
  *
- * @param {object} value to hash
- * @return {hash value}
+ * @param {object} object value to hash
+ * @return {string} hash value
  * @api public
@@ -68,13 +60,19 @@ */
 
-/**
- * Expose HashTable constructor
- *
- */
-exports.HashTable = require('./lib/hashTable');
-
-
 // Internals
-function validate(object, options){
+function applyDefaults(object, options){
   var hashes = crypto.getHashes ? crypto.getHashes() : ['sha1', 'md5'];
   var encodings = ['buffer', 'hex', 'binary', 'base64'];
+  
+  options = options || {};
+  options.algorithm = options.algorithm || 'sha1';
+  options.encoding = options.encoding || 'hex';
+  options.excludeValues = options.excludeValues ? true : false;
+  options.algorithm = options.algorithm.toLowerCase();
+  options.encoding = options.encoding.toLowerCase();
+  options.ignoreUnknown = options.ignoreUnknown !== true ? false : true; // default to false
+  options.respectType = options.respectType === false ? false : true; // default to true
+  options.respectFunctionProperties = options.respectFunctionProperties === false ? false : true;
+  options.unorderedArrays = options.unorderedArrays !== true ? false : true; // default to false
+  options.unorderedSets = options.unorderedSets === false ? false : true; // default to false
+  options.replacer = options.replacer || undefined;
 
@@ -85,2 +83,3 @@ if(typeof object === 'undefined') {
 
+  hashes.push('passthrough');
   // if there is a case-insensitive match in the hashes list, accept it
@@ -99,19 +98,11 @@ // (i.e. SHA256 for sha256)
 
-  if(encodings.indexOf(options.encoding) === -1){
+  if(encodings.indexOf(options.encoding) === -1 &&
+     options.algorithm !== 'passthrough'){
     throw new Error('Encoding "' + options.encoding + '"  not supported. ' +
       'supported values: ' + encodings.join(', '));
   }
+  
+  return options;
 }
 
-function hash(object, options){
-  var hashFn = crypto.createHash(options.algorithm);
-
-  var context = [];
-
-  typeHasher(hashFn, options, context).dispatch(object);
-
-  return (options.encoding === 'buffer') ? hashFn.digest() :
-    hashFn.digest(options.encoding);
-}
-
 /** Check if the given function is a native function */
@@ -126,7 +117,67 @@ function isNativeFunction(f) {
 
-function typeHasher(hashFn, options, context){
+function hash(object, options) {
+  var hashingStream;
+  
+  if (options.algorithm !== 'passthrough') {
+    hashingStream = crypto.createHash(options.algorithm);
+  } else {
+    hashingStream = new stream.PassThrough();
+  }
+  
+  if (typeof hashingStream.write === 'undefined') {
+    hashingStream.write = hashingStream.update;
+    hashingStream.end   = hashingStream.update;
+  }
+  
+  var hasher = typeHasher(options, hashingStream);
+  hasher.dispatch(object);
+  hashingStream.end(''); // write empty string since .update() requires a string arg
+  
+  if (typeof hashingStream.read === 'undefined' &&
+      typeof hashingStream.digest === 'function') {
+    return hashingStream.digest(options.encoding === 'buffer' ? undefined : options.encoding);
+  }
+
+  var buf = hashingStream.read();
+  if (options.encoding === 'buffer') {
+    return buf;
+  }
+  
+  return buf.toString(options.encoding);
+}
+
+/**
+ * Expose streaming API
+ *
+ * @param {object} object  Value to serialize
+ * @param {object} options  Options, as for hash()
+ * @param {object} stream  A stream to write the serializiation to
+ * @api public
+ */
+exports.writeToStream = function(object, options, stream) {
+  if (typeof stream === 'undefined') {
+    stream = options;
+    options = {};
+  }
+  
+  options = applyDefaults(object, options);
+  
+  return typeHasher(options, stream).dispatch(object);
+};
+
+function typeHasher(options, writeTo, context){
+  context = context || [];
+  
   return {
     dispatch: function(value){
+      if (options.replacer) {
+        value = options.replacer(value);
+      }
+      
       var type = typeof value;
-      return (value === null) ? this._null() : this['_' + type](value);
+      if (value === null) {
+        type = 'null';
+      }
+      
+      return this['_' + type](value);
     },
@@ -136,9 +187,15 @@ _object: function(object) {
       var objString = Object.prototype.toString.call(object);
-      var objType = pattern.exec(objString)[1] || 'null';
+      var objType = pattern.exec(objString);
+      if (!objType) { // object type did not match [object ...]
+        objType = 'unknown:[' + objString + ']';
+      } else {
+        objType = objType[1]; // take only the class name
+      }
+      
+      objType = objType.toLowerCase();
+            
       var objectNumber = null;
-      objType = objType.toLowerCase();
 
       if ((objectNumber = context.indexOf(object)) >= 0) {
-        typeHasher(hashFn, options, context).dispatch("[CIRCULAR]: " + objectNumber);
-        return;
+        return this.dispatch('[CIRCULAR:' + objectNumber + ']');
       } else {
@@ -149,14 +206,15 @@ context.push(object);
       if (typeof Buffer !== 'undefined' && Buffer.isBuffer && Buffer.isBuffer(object)) {
-        hashFn.update('buffer:');
-        return hashFn.update(object);
+        writeTo.write('buffer:');
+        return writeTo.write(object);
       }
 
       if(objType !== 'object' && objType !== 'function') {
-        if(typeHasher(hashFn, options, context)['_' + objType]) {
-          typeHasher(hashFn, options, context)['_' + objType](object);
-        }else{
+        if(this['_' + objType]) {
+          this['_' + objType](object);
+        } else if (options.ignoreUnknown) {
+          return writeTo.write('[' + objType + ']');
+        } else {
           throw new Error('Unknown object type "' + objType + '"');
         }
       }else{
-        hashFn.update('object:');
         var keys = Object.keys(object).sort();
@@ -173,135 +231,175 @@ // Make sure to incorporate special properties, so
         }
+        
+        writeTo.write('object:' + keys.length + ':');
+        var self = this;
         return keys.forEach(function(key){
-          hashFn.update(key, 'utf8');
+          self.dispatch(key);
+          writeTo.write(':');
           if(!options.excludeValues) {
-            typeHasher(hashFn, options, context).dispatch(object[key]);
+            self.dispatch(object[key]);
           }
+          writeTo.write(',');
         });
       }
     },
-    _array: function(arr){
-      hashFn.update('array:' + arr.length + ':');
-      if (options.unorderedArrays !== false) {
-        arr = arr.sort();
+    _array: function(arr, unordered){
+      unordered = typeof unordered !== 'undefined' ? unordered :
+        options.unorderedArrays !== false; // default to options.unorderedArrays
+      
+      var self = this;
+      writeTo.write('array:' + arr.length + ':');
+      if (!unordered) {
+        return arr.forEach(function(entry) {
+          return self.dispatch(entry);
+        });
       }
-      return arr.forEach(function(el){
-        typeHasher(hashFn, options, context).dispatch(el);
+      
+      // the unordered case is a little more complicated:
+      // since there is no canonical ordering on objects,
+      // i.e. {a:1} < {a:2} and {a:1} > {a:2} are both false,
+      // we first serialize each entry using a PassThrough stream
+      // before sorting.
+      // also: we can’t use the same context array for all entries
+      // since the order of hashing should *not* matter. instead,
+      // we keep track of the additions to a copy of the context array
+      // and add all of them to the global context array when we’re done
+      var contextAdditions = [];
+      var entries = arr.map(function(entry) {
+        var strm = new stream.PassThrough();
+        var localContext = context.slice(); // make copy
+        var hasher = typeHasher(options, strm, localContext);
+        hasher.dispatch(entry);
+        // take only what was added to localContext and append it to contextAdditions
+        contextAdditions = contextAdditions.concat(localContext.slice(context.length));
+        return strm.read().toString();
       });
+      context = context.concat(contextAdditions);
+      entries.sort();
+      return this._array(entries, false);
     },
     _date: function(date){
-      return hashFn.update('date:' + date.toJSON());
+      return writeTo.write('date:' + date.toJSON());
     },
     _symbol: function(sym){
-      return hashFn.update('symbol:' + sym.toString(), 'utf8');
+      return writeTo.write('symbol:' + sym.toString(), 'utf8');
     },
     _error: function(err){
-      return hashFn.update('error:' + err.toString(), 'utf8');
+      return writeTo.write('error:' + err.toString(), 'utf8');
     },
     _boolean: function(bool){
-      return hashFn.update('bool:' + bool.toString());
+      return writeTo.write('bool:' + bool.toString());
     },
     _string: function(string){
-      return hashFn.update('string:' + string, 'utf8');
+      writeTo.write('string:' + string.length + ':');
+      writeTo.write(string, 'utf8');
     },
     _function: function(fn){
-      hashFn.update('fn:' + fn.toString(), 'utf8');
+      writeTo.write('fn:');
+      if (isNativeFunction(fn)) {
+        this.dispatch('[native]');
+      } else {
+        this.dispatch(fn.toString());
+      }
+      
       if (options.respectFunctionProperties) {
         this._object(fn);
       }
-      return hashFn;
     },
     _number: function(number){
-      return hashFn.update('number:' + number.toString());
+      return writeTo.write('number:' + number.toString());
     },
     _xml: function(xml){
-      return hashFn.update('xml:' + xml.toString(), 'utf8');
+      return writeTo.write('xml:' + xml.toString(), 'utf8');
     },
     _null: function() {
-      return hashFn.update('Null');
+      return writeTo.write('Null');
     },
     _undefined: function() {
-      return hashFn.update('Undefined');
+      return writeTo.write('Undefined');
     },
     _regexp: function(regex){
-      return hashFn.update('regex:' + regex.toString(), 'utf8');
+      return writeTo.write('regex:' + regex.toString(), 'utf8');
     },
     _uint8array: function(arr){
-      hashFn.update('uint8array:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('uint8array:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _uint8clampedarray: function(arr){
-      hashFn.update('uint8clampedarray:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('uint8clampedarray:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _int8array: function(arr){
-      hashFn.update('uint8array:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('uint8array:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _uint16array: function(arr){
-      hashFn.update('uint16array:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('uint16array:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _int16array: function(arr){
-      hashFn.update('uint16array:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('uint16array:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _uint32array: function(arr){
-      hashFn.update('uint32array:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('uint32array:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _int32array: function(arr){
-      hashFn.update('uint32array:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('uint32array:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _float32array: function(arr){
-      hashFn.update('float32array:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('float32array:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _float64array: function(arr){
-      hashFn.update('float64array:');
-      return typeHasher(hashFn, options, context).dispatch(Array.prototype.slice.call(arr));
+      writeTo.write('float64array:');
+      return this.dispatch(Array.prototype.slice.call(arr));
     },
     _arraybuffer: function(arr){
-      hashFn.update('arraybuffer:');
-      return typeHasher(hashFn, options, context).dispatch(new Uint8Array(arr));
+      writeTo.write('arraybuffer:');
+      return this.dispatch(new Uint8Array(arr));
     },
     _url: function(url) {
-      return hashFn.update('url:' + url.toString(), 'utf8');
+      return writeTo.write('url:' + url.toString(), 'utf8');
     },
     _map: function(map) {
-      hashFn.update('map:');
+      writeTo.write('map:');
       var arr = Array.from(map);
-      if (options.unorderedSets !== false && options.unorderedArrays === false) {
-        arr = arr.sort();
-      }
-      return typeHasher(hashFn, options, context).dispatch(arr);
+      return this._array(arr, options.unorderedSets !== false);
     },
     _set: function(set) {
-      hashFn.update('set:');
+      writeTo.write('set:');
       var arr = Array.from(set);
-      if (options.unorderedSets !== false && options.unorderedArrays === false) {
-        arr = arr.sort();
+      return this._array(arr, options.unorderedSets !== false);
+    },
+    _blob: function() {
+      if (options.ignoreUnknown) {
+        return writeTo.write('[blob]');
       }
-      return typeHasher(hashFn, options, context).dispatch(arr);
+      
+      throw Error('Hashing Blob objects is currently not supported\n' +
+        '(see https://github.com/puleos/object-hash/issues/26)\n' +
+        'Use "options.replacer" or "options.ignoreUnknown"\n');
     },
-    _domwindow: function() { return hashFn.update('domwindow'); },
+    _domwindow: function() { return writeTo.write('domwindow'); },
     /* Node.js standard native objects */
-    _process: function() { return hashFn.update('process'); },
-    _timer: function() { return hashFn.update('timer'); },
-    _pipe: function() { return hashFn.update('pipe'); },
-    _tcp: function() { return hashFn.update('tcp'); },
-    _udp: function() { return hashFn.update('udp'); },
-    _tty: function() { return hashFn.update('tty'); },
-    _statwatcher: function() { return hashFn.update('statwatcher'); },
-    _securecontext: function() { return hashFn.update('securecontext'); },
-    _connection: function() { return hashFn.update('connection'); },
-    _zlib: function() { return hashFn.update('zlib'); },
-    _context: function() { return hashFn.update('context'); },
-    _nodescript: function() { return hashFn.update('nodescript'); },
-    _httpparser: function() { return hashFn.update('httpparser'); },
-    _dataview: function() { return hashFn.update('dataview'); },
-    _signal: function() { return hashFn.update('signal'); },
-    _fsevent: function() { return hashFn.update('fsevent'); },
-    _tlswrap: function() { return hashFn.update('tlswrap'); }
+    _process: function() { return writeTo.write('process'); },
+    _timer: function() { return writeTo.write('timer'); },
+    _pipe: function() { return writeTo.write('pipe'); },
+    _tcp: function() { return writeTo.write('tcp'); },
+    _udp: function() { return writeTo.write('udp'); },
+    _tty: function() { return writeTo.write('tty'); },
+    _statwatcher: function() { return writeTo.write('statwatcher'); },
+    _securecontext: function() { return writeTo.write('securecontext'); },
+    _connection: function() { return writeTo.write('connection'); },
+    _zlib: function() { return writeTo.write('zlib'); },
+    _context: function() { return writeTo.write('context'); },
+    _nodescript: function() { return writeTo.write('nodescript'); },
+    _httpparser: function() { return writeTo.write('httpparser'); },
+    _dataview: function() { return writeTo.write('dataview'); },
+    _signal: function() { return writeTo.write('signal'); },
+    _fsevent: function() { return writeTo.write('fsevent'); },
+    _tlswrap: function() { return writeTo.write('tlswrap'); }
   };
 }

package.json

 {
   "name": "object-hash",
-  "version": "0.9.5",
+  "version": "1.0.0",
   "description": "Generate hashes from javascript objects in node and the browser.",
@@ -47,4 +47,4 @@ "homepage": "https://github.com/puleos/object-hash",
   "engines": {
-    "node": ">= 0.8.0"
+    "node": ">= 0.10.0"
   }
 }

test/index.js

@@ -0,1 +1,3 @@
+'use strict';
+
 var assert = require('assert');
@@ -7,327 +9,263 @@ var crypto = require('crypto');
 describe('hash', function() {
-it('throws when nothing to hash', function () {
-  assert.throws(hash, 'no arguments');
-  assert.throws(function() {
-    hash(undefined, {algorithm: 'md5'});
-  }, 'undefined');
-});
+  it('throws when nothing to hash', function () {
+    assert.throws(hash, 'no arguments');
+    assert.throws(function() {
+      hash(undefined, {algorithm: 'md5'});
+    }, 'undefined');
+  });
 
-it('throws when passed an invalid options', function() {
-  assert.throws(function() {
-    hash({foo: 'bar'}, {algorithm: 'shalala'});
-  }, 'bad algorithm');
-  assert.throws(function() {
-    hash({foo: 'bar'}, {encoding: 'base16'});
-  }, 'bad encoding');
-});
+  it('throws when passed an invalid options', function() {
+    assert.throws(function() {
+      hash({foo: 'bar'}, {algorithm: 'shalala'});
+    }, 'bad algorithm');
+    assert.throws(function() {
+      hash({foo: 'bar'}, {encoding: 'base16'});
+    }, 'bad encoding');
+  });
 
-it('hashes non-object types', function() {
-  var func = function(a){ return a + 1; };
-  assert.ok(validSha1.test(hash('Shazbot!')), 'hash string');
-  assert.ok(validSha1.test(hash(42)), 'hash number');
-  assert.ok(validSha1.test(hash(true)), 'hash bool');
-  assert.ok(validSha1.test(hash(func)), 'hash function');
-});
+  it('hashes a simple object', function() {
+    assert.ok(validSha1.test(hash({foo: 'bar', bar: 'baz'})), 'hash object');
+  });
 
-it('hashes special object types', function() {
-  var dt = new Date();
-  dt.setDate(dt.getDate() + 1);
+  if (typeof Buffer !== 'undefined') {
+    it('can return buffers', function() {
+      assert.ok(Buffer.isBuffer(hash({foo: 'bar', bar: 'baz'}, {encoding: 'buffer'})), 'hash object');
+    });
+  }
 
-  assert.ok(validSha1.test(hash([1,2,3,4])), 'hash array');
-  assert.notEqual(hash([1,2,3,4]), hash([4,3,2,1]), 'different arrays not equal');
-  assert.ok(validSha1.test(hash(new Date())), 'hash date');
-  assert.notEqual(hash(new Date()), hash(dt), 'different dates not equal');
-  assert.ok(validSha1.test(hash(null)), 'hash Null');
-  assert.ok(validSha1.test(hash(Number.NaN)), 'hash NaN');
-  assert.ok(validSha1.test(hash({ foo: undefined })), 'hash Undefined value');
-  assert.ok(validSha1.test(hash(new RegExp())), 'hash regex');
-  assert.ok(validSha1.test(hash(new Error())), 'hash error');
-});
+  it('hashes identical objects with different key ordering', function() {
+    var hash1 = hash({foo: 'bar', bar: 'baz'});
+    var hash2 = hash({bar: 'baz', foo: 'bar'});
+    var hash3 = hash({bar: 'foo', foo: 'baz'});
+    assert.equal(hash1, hash2, 'hashes are equal');
+    assert.notEqual(hash1, hash3, 'different objects not equal');
+  });
 
-if (typeof Symbol !== 'undefined')
-it('hashes Symbols', function() {
-  assert.ok(validSha1.test(hash(Symbol('Banana'))), 'hash error');
-});
+  it('hashes only object keys when excludeValues option is set', function() {
+    var hash1 = hash({foo: false, bar: 'OK'}, { excludeValues: true });
+    var hash2 = hash({foo: true, bar: 'NO'}, { excludeValues: true });
+    var hash3 = hash({foo: true, bar: 'OK', baz: false}, { excludeValues: true });
+    assert.equal(hash1, hash2, 'values not in hash digest');
+    assert.notEqual(hash1, hash3, 'different keys not equal');
+  });
 
-it('hashes a simple object', function() {
-  assert.ok(validSha1.test(hash({foo: 'bar', bar: 'baz'})), 'hash object');
-});
+  it('array values are hashed', function() {
+    var hash1 = hash({foo: ['bar', 'baz'], bax: true });
+    var hash2 = hash({foo: ['baz', 'bar'], bax: true });
+    assert.notEqual(hash1, hash2, 'different array orders are unique');
+  });
 
-it('hashes identical objects with different key ordering', function() {
-  var hash1 = hash({foo: 'bar', bar: 'baz'});
-  var hash2 = hash({bar: 'baz', foo: 'bar'});
-  var hash3 = hash({bar: 'foo', foo: 'baz'});
-  assert.equal(hash1, hash2, 'hashes are equal');
-  assert.notEqual(hash1, hash3, 'different objects not equal');
-});
+  it('nested object values are hashed', function() {
+    var hash1 = hash({foo: {bar: true, bax: 1}});
+    var hash2 = hash({foo: {bar: true, bax: 1}});
+    var hash3 = hash({foo: {bar: false, bax: 1}});
+    assert.equal(hash1, hash2, 'hashes are equal');
+    assert.notEqual(hash1, hash3, 'different objects not equal');
+  });
 
-it('hashes only object keys when excludeValues option is set', function() {
-  var hash1 = hash({foo: false, bar: 'OK'}, { excludeValues: true });
-  var hash2 = hash({foo: true, bar: 'NO'}, { excludeValues: true });
-  var hash3 = hash({foo: true, bar: 'OK', baz: false}, { excludeValues: true });
-  assert.equal(hash1, hash2, 'values not in hash digest');
-  assert.notEqual(hash1, hash3, 'different keys not equal');
-});
+  it('sugar methods should be equivalent', function() {
+    var obj = {foo: 'bar', baz: true};
+    assert.equal(hash.keys(obj), hash(obj, {excludeValues: true}), 'keys');
+    assert.equal(hash.sha1(obj), hash(obj, {algorithm: 'sha1'}), 'sha1');
+    assert.equal(hash.MD5(obj), hash(obj, {algorithm: 'md5'}), 'md5');
+    assert.equal(hash.keysMD5(obj),
+      hash(obj, {algorithm: 'md5', excludeValues: true}), 'keys md5');
+  });
 
-it('array values are hashed', function() {
-  var hash1 = hash({foo: ['bar', 'baz'], bax: true });
-  var hash2 = hash({foo: ['baz', 'bar'], bax: true });
-  assert.notEqual(hash1, hash2, 'different array orders are unique');
-});
+  it('array of nested object values are hashed', function() {
+    var hash1 = hash({foo: [ {bar: true, bax: 1}, {bar: false, bax: 2} ] });
+    var hash2 = hash({foo: [ {bar: true, bax: 1}, {bar: false, bax: 2} ] });
+    var hash3 = hash({foo: [ {bar: false, bax: 2} ] });
+    assert.equal(hash1, hash2, 'hashes are equal');
+    assert.notEqual(hash1, hash3, 'different objects not equal');
+  });
 
-it('nested object values are hashed', function() {
-  var hash1 = hash({foo: {bar: true, bax: 1}});
-  var hash2 = hash({foo: {bar: true, bax: 1}});
-  var hash3 = hash({foo: {bar: false, bax: 1}});
-  assert.equal(hash1, hash2, 'hashes are equal');
-  assert.notEqual(hash1, hash3, 'different objects not equal');
-});
+  it("recursive objects don't blow up stack", function() {
+    var hash1 = {foo: 'bar'};
+    hash1.recursive = hash1;
+    assert.doesNotThrow(function() {hash(hash1);}, /Maximum call stack size exceeded/, 'Should not throw an stack size exceeded exception');
+  });
 
-it('sugar methods should be equivalent', function() {
-  var obj = {foo: 'bar', baz: true};
-  assert.equal(hash.keys(obj), hash(obj, {excludeValues: true}), 'keys');
-  assert.equal(hash.MD5(obj), hash(obj, {algorithm: 'md5'}), 'md5');
-  assert.equal(hash.keysMD5(obj),
-    hash(obj, {algorithm: 'md5', excludeValues: true}), 'keys md5');
-});
+  it("recursive arrays don't blow up stack", function() {
+    var hash1 = ['foo', 'bar'];
+    hash1.push(hash1);
+    assert.doesNotThrow(function() {hash(hash1);}, /Maximum call stack size exceeded/, 'Should not throw an stack size exceeded exception');
+  });
 
+  it("recursive arrays don't blow up stack with unorderedArrays", function() {
+    var hash1 = ['foo', 'bar'];
+    hash1.push(hash1);
+    assert.doesNotThrow(function() {hash(hash1, {unorderedArrays: true});}, /Maximum call stack size exceeded/, 'Should not throw an stack size exceeded exception');
+  });
 
-it('array of nested object values are hashed', function() {
-  var hash1 = hash({foo: [ {bar: true, bax: 1}, {bar: false, bax: 2} ] });
-  var hash2 = hash({foo: [ {bar: true, bax: 1}, {bar: false, bax: 2} ] });
-  var hash3 = hash({foo: [ {bar: false, bax: 2} ] });
-  assert.equal(hash1, hash2, 'hashes are equal');
-  assert.notEqual(hash1, hash3, 'different objects not equal');
-});
+  it("recursive handling tracks identity", function() {
+    var hash1 = {k1: {k: 'v'}, k2: {k: 'k2'}};
+    hash1.k1.r1 = hash1.k1;
+    hash1.k2.r2 = hash1.k2;
+    var hash2 = {k1: {k: 'v'}, k2: {k: 'k2'}};
+    hash2.k1.r1 = hash2.k2;
+    hash2.k2.r2 = hash2.k1;
+    assert.notEqual(hash(hash1), hash(hash2), "order of recursive objects should matter");
+  });
 
-it("recursive objects don't blow up stack", function() {
-  var hash1 = {foo: 'bar'};
-  hash1.recursive = hash1;
-  assert.doesNotThrow(function() {hash(hash1);}, /Maximum call stack size exceeded/, 'Should not throw an stack size exceeded exception');
-});
+  it("object types are hashed", function() {
+    var hash1 = hash({foo: 'bar'});
+    var hash2 = hash(['foo', 'bar']);
+    assert.notEqual(hash1, hash2, "arrays and objects should not produce identical hashes");
+  });
 
-it("recursive arrays don't blow up stack", function() {
-  var hash1 = ['foo', 'bar'];
-  hash1.push(hash1);
-  assert.doesNotThrow(function() {hash(hash1);}, /Maximum call stack size exceeded/, 'Should not throw an stack size exceeded exception');
-});
+  it("utf8 strings are hashed correctly", function() {
+    var hash1 = hash('\u03c3'); // cf 83 in utf8
+    var hash2 = hash('\u01c3'); // c7 83 in utf8
+    assert.notEqual(hash1, hash2, "different strings with similar utf8 encodings should produce different hashes");
+  });
 
-it("recursive handling tracks identity", function() {
-  var hash1 = {k1: {k: 'v'}, k2: {k: 'k2'}};
-  hash1.k1.r1 = hash1.k1;
-  hash1.k2.r2 = hash1.k2;
-  var hash2 = {k1: {k: 'v'}, k2: {k: 'k2'}};
-  hash2.k1.r1 = hash2.k2;
-  hash2.k2.r2 = hash2.k1;
-  assert.notEqual(hash(hash1), hash(hash2), "order of recursive objects should matter");
-});
+  it("various hashes in crypto.getHashes() should be supported", function() {
+    var hashes = ['sha1', 'md5'];
+    
+    if (crypto.getHashes) {
+      // take all hashes from crypto.getHashes() starting with MD or SHA
+      hashes = crypto.getHashes().filter(RegExp.prototype.test.bind(/^(md|sha)/i));
+    }
+    
+    var obj = {randomText: 'bananas'};
+    
+    for (var i = 0; i < hashes.length; i++) {
+      assert.ok(hash(obj, {algorithm: hashes[i]}), 'Algorithm ' + hashes[i] + ' should be supported');
+    }
+  });
 
-it("null and 'Null' string produce different hashes", function() {
-  var hash1 = hash({foo: null});
-  var hash2 = hash({foo: 'Null'});
-  assert.notEqual(hash1, hash2, "null and 'Null' should not produce identical hashes");
-});
+  it("null and 'Null' string produce different hashes", function() {
+    var hash1 = hash({foo: null});
+    var hash2 = hash({foo: 'Null'});
+    assert.notEqual(hash1, hash2, "null and 'Null' should not produce identical hashes");
+  });
 
-it("object types are hashed", function() {
-  var hash1 = hash({foo: 'bar'});
-  var hash2 = hash(['foo', 'bar']);
-  assert.notEqual(hash1, hash2, "arrays and objects should not produce identical hashes");
-});
+  it('Distinguish functions based on their properties', function() {
 
-it("utf8 strings are hashed correctly", function() {
-  var hash1 = hash('\u03c3'); // cf 83 in utf8
-  var hash2 = hash('\u01c3'); // c7 83 in utf8
-  assert.notEqual(hash1, hash2, "different strings with similar utf8 encodings should produce different hashes");
-});
+    var a, b, c, d;
+    function Foo() {}
+    a = hash(Foo);
 
-it("various hashes in crypto.getHashes() should be supported", function() {
-  var hashes = ['sha1', 'md5'];
-  
-  if (crypto.getHashes) {
-    // take all hashes from crypto.getHashes() starting with MD or SHA
-    hashes = crypto.getHashes().filter(RegExp.prototype.test.bind(/^(md|sha)/i));
-  }
-  
-  var obj = {randomText: 'bananas'};
-  
-  for (var i = 0; i < hashes.length; i++) {
-    assert.ok(hash(obj, {algorithm: hashes[i]}), 'Algorithm ' + hashes[i] + ' should be supported');
-  }
-});
+    Foo.foo = 22;
+    b = hash(Foo);
 
-if (typeof Buffer !== 'undefined') {
-it("Buffers can be hashed", function() {
-  assert.ok(validSha1.test(hash(new Buffer('Banana'))), 'hashes Buffers');
-});
-}
+    Foo.bar = "42";
+    c = hash(Foo);
 
-if (typeof Uint8Array !== 'undefined') {
-it("Typed arrays can be hashed", function() {
-  
-  assert.ok(validSha1.test(hash(new Uint8Array([1,2,3,4]))), 'hashes Uint8Array');
-  assert.ok(validSha1.test(hash(new  Int8Array([1,2,3,4]))), 'hashes  Int8Array');
-  assert.ok(validSha1.test(hash(new Uint16Array([1,2,3,4]))), 'hashes Uint16Array');
-  assert.ok(validSha1.test(hash(new  Int16Array([1,2,3,4]))), 'hashes  Int16Array');
-  assert.ok(validSha1.test(hash(new Uint32Array([1,2,3,4]))), 'hashes Uint32Array');
-  assert.ok(validSha1.test(hash(new  Int32Array([1,2,3,4]))), 'hashes  Int32Array');
-  assert.ok(validSha1.test(hash(new Float32Array([1,2,3,4]))), 'hashes Float32Array');
-  if (typeof Float64Array !== 'undefined')
-  assert.ok(validSha1.test(hash(new Float64Array([1,2,3,4]))), 'hashes Float64Array');
-  if (typeof Uint8ClampedArray !== 'undefined')
-  assert.ok(validSha1.test(hash(new Uint8ClampedArray([1,2,3,4]))), 'hashes Uint8ClampedArray');
-  assert.ok(validSha1.test(hash(new Uint8Array([1,2,3,4]).buffer)), 'hashes ArrayBuffer');
-});
-}
+    Foo.foo = "22";
+    d = hash(Foo);
 
-if (typeof Map !== 'undefined') {
-it("Maps can be hashed", function() {
-  var map = new Map([['a',1],['b',2]]);
-  assert.ok(validSha1.test(hash(map)), 'hashes Maps');
-});
-}
+    assert.notEqual(a,b, 'adding a property changes the hash');
+    assert.notEqual(b,c, 'adding another property changes the hash');
+    assert.notEqual(c,d, 'changing a property changes the hash');
+  });
 
-if (typeof WeakMap !== 'undefined') {
-it("WeakMaps can’t be hashed", function() {
-  var map = new WeakMap([[{foo: 'bar'},1]]);
-  assert.throws(function() {
-    validSha1.test(hash(map))
-  }, 'does not hash WeakMaps');
-});
-}
+  it('respectFunctionProperties = false', function() {
 
-if (typeof Set !== 'undefined') {
-it("Sets can be hashed", function() {
-  var set = new Set(['you', 'du', 'tu', 'あなた', '您']);
-  assert.ok(validSha1.test(hash(set)), 'hashes Sets');
-});
-}
+    var a, b;
+    function Foo() {}
+    a = hash(Foo, {respectFunctionProperties: false});
 
-if (typeof WeakSet !== 'undefined') {
-it("WeakSets can’t be hashed", function() {
-  var obj = {foo: 'bar'};
-  var set = new WeakSet([obj]);
-  assert.throws(function() {
-    validSha1.test(hash(set))
-  }, 'does not hash WeakSets');
-});
-}
+    Foo.foo = 22;
+    b = hash(Foo, {respectFunctionProperties: false});
 
-it('Distinguish functions based on their properties', function() {
+    assert.equal(a,b, 'function properties are ignored');
+  });
 
-  var a, b, c, d;
-  function Foo() {}
-  a = hash(Foo);
+  it('Distinguish functions based on prototype properties', function() {
 
-  Foo.foo = 22;
-  b = hash(Foo);
+    var a, b, c, d;
+    function Foo() {}
+    a = hash(Foo);
 
-  Foo.bar = "42";
-  c = hash(Foo);
+    Foo.prototype.foo = 22;
+    b = hash(Foo);
 
-  Foo.foo = "22";
-  d = hash(Foo);
+    Foo.prototype.bar = "42";
+    c = hash(Foo);
 
-  assert.notEqual(a,b, 'adding a property changes the hash');
-  assert.notEqual(b,c, 'adding another property changes the hash');
-  assert.notEqual(c,d, 'changing a property changes the hash');
-});
+    Foo.prototype.foo = "22";
+    d = hash(Foo);
 
-it('respectFunctionProperties = false', function() {
+    assert.notEqual(a,b, 'adding a property to the prototype changes the hash');
+    assert.notEqual(b,c, 'adding another property to the prototype changes the hash');
+    assert.notEqual(c,d, 'changing a property in the prototype changes the hash');
+  });
 
-  var a, b;
-  function Foo() {}
-  a = hash(Foo, {respectFunctionProperties: false});
+  it('Distinguish objects based on their type', function() {
 
-  Foo.foo = 22;
-  b = hash(Foo, {respectFunctionProperties: false});
+    function Foo() {}
+    function Bar() {}
 
-  assert.equal(a,b, 'function properties are ignored');
-});
+    var f = new Foo(), b = new Bar();
 
-it('Distinguish functions based on prototype properties', function() {
+    assert.notEqual(hash(Foo), hash(Bar), 'Functions with different names should produce a different Hash.');
+    assert.notEqual(hash(f), hash(b), 'Objects with different constructor should have a different Hash.');
+  });
 
-  var a, b, c, d;
-  function Foo() {}
-  a = hash(Foo);
+  it('respectType = false', function() {
+    var opt = { respectType: false };
 
-  Foo.prototype.foo = 22;
-  b = hash(Foo);
 
-  Foo.prototype.bar = "42";
-  c = hash(Foo);
+    function Foo() {}
+    function Bar() {}
 
-  Foo.prototype.foo = "22";
-  d = hash(Foo);
+    var f = new Foo(), b = new Bar();
+    assert.equal(hash(f, opt), hash(b, opt), 'Hashing should disregard the different constructor');
 
-  assert.notEqual(a,b, 'adding a property to the prototype changes the hash');
-  assert.notEqual(b,c, 'adding another property to the prototype changes the hash');
-  assert.notEqual(c,d, 'changing a property in the prototype changes the hash');
-});
 
-it('Distinguish objects based on their type', function() {
+    var ha, hb;
+    function F() {}
+    ha = hash(F, opt);
 
-  function Foo() {}
-  function Bar() {}
+    F.prototype.meaningOfLife = 42;
+    hb = hash(F, opt);
 
-  var f = new Foo(), b = new Bar();
+    assert.equal(ha, hb, 'Hashing should disregard changes in the function\'s prototype');
+  });
 
-  assert.notEqual(hash(Foo), hash(Bar), 'Functions with different names should produce a different Hash.');
-  assert.notEqual(hash(f), hash(b), 'Objects with different constructor should have a different Hash.');
-});
+  it('unorderedArrays = false', function() {
+    var ha, hb;
+    ha = hash([1, 2, 3]);
+    hb = hash([3, 2, 1]);
 
-it('respectType = false', function() {
-  var opt = { respectType: false };
+    assert.notEqual(ha, hb, 'Hashing should respect the order of array entries');
+  });
 
+  it('unorderedArrays = true', function() {
+    var opt = { unorderedArrays: true };
+    
+    var ha, hb;
+    ha = hash([1, 2, 3], opt);
+    hb = hash([3, 2, 1], opt);
 
-  function Foo() {}
-  function Bar() {}
+    assert.equal(ha, hb, 'Hashing should not respect the order of array entries');
+    
+    ha = hash([{a: 1}, {a: 2}], opt);
+    hb = hash([{a: 2}, {a: 1}], opt);
 
-  var f = new Foo(), b = new Bar();
-  assert.equal(hash(f, opt), hash(b, opt), 'Hashing should disregard the different constructor');
+    assert.equal(ha, hb, 'Hashing should not respect the order of array entries');
+  });
 
+  if (typeof Set !== 'undefined') {
+    it('unorderedSets = false', function() {
+      var opt = { unorderedSets: false };
+      
+      var ha, hb;
+      ha = hash(new Set([1, 2, 3]), opt);
+      hb = hash(new Set([3, 2, 1]), opt);
 
-  var ha, hb;
-  function F() {}
-  ha = hash(F, opt);
+      assert.notEqual(ha, hb, 'Hashing should respect the order of Set entries');
+    });
 
-  F.prototype.meaningOfLife = 42;
-  hb = hash(F, opt);
+    it('unorderedSets = true', function() {
+      var ha, hb;
+      ha = hash(new Set([1, 2, 3]));
+      hb = hash(new Set([3, 2, 1]));
 
-  assert.equal(ha, hb, 'Hashing should disregard changes in the function\'s prototype');
+      assert.equal(ha, hb, 'Hashing should not respect the order of Set entries');
+    });
+  }
 });
 
-it('unorderedArrays = false', function() {
-  ha = hash([1, 2, 3]);
-  hb = hash([3, 2, 1]);
-
-  assert.notEqual(ha, hb, 'Hashing should respect the order of array entries');
-});
-
-it('unorderedArrays = true', function() {
-  var opt = { unorderedArrays: true };
-  
-  ha = hash([1, 2, 3], opt);
-  hb = hash([3, 2, 1], opt);
-
-  assert.equal(ha, hb, 'Hashing should not respect the order of array entries');
-});
-
-if (typeof Set !== 'undefined') {
-it('unorderedSets = false', function() {
-  ha = hash(new Set([1, 2, 3]));
-  hb = hash(new Set([3, 2, 1]));
-
-  assert.notEqual(ha, hb, 'Hashing should respect the order of Set entries');
-});
-
-it('unorderedSets = true', function() {
-  var opt = { unorderedSets: true };
-  
-  ha = hash(new Set([1, 2, 3]), opt);
-  hb = hash(new Set([3, 2, 1]), opt);
-
-  assert.equal(ha, hb, 'Hashing should not respect the order of Set entries');
-});
-}
-
-});

Fixed alerts

No v1

Quality

Package is not semver >=1. This means it is not stable and does not support ^ ranges.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

329357

increased by33.48%

Number of package files

18

increased by28.57%

Lines of code

5907

increased by44.35%

Number of low quality alerts

1

decreased by-50%

Worsened metrics

Number of lines in readme file

139

decreased by-26.84%

Number of low supply chain risk alerts

7

increased by16.67%

No dependency changes