Merge pull request #810 from debris/ethereumjs

Ethereumjs
10 years ago · 72bfea843a
29 changed files with 2071 additions and 695 deletions
--- a/libjsqrc/bignumber.min.js
+++ b/libjsqrc/bignumber.min.js
--- a/libjsqrc/ethereumjs/README.md
+++ b/libjsqrc/ethereumjs/README.md
@ -66,16 +66,16 @@ sudo apt-get install npm
 sudo apt-get install nodejs-legacy
 ```

-## Building
+### Building (gulp)

-```bash (gulp)
+```bash
 npm run-script build
 ```


-### Testing
+### Testing (mocha)

-```bash (mocha)
+```bash
 npm test
 ```

--- a/libjsqrc/ethereumjs/bower.json
+++ b/libjsqrc/ethereumjs/bower.json
@ -1,11 +1,12 @@
 {
  "name": "ethereum.js",
  "namespace": "ethereum",
-  "version": "0.0.3",
+  "version": "0.0.8",
  "description": "Ethereum Compatible JavaScript API",
  "main": ["./dist/ethereum.js", "./dist/ethereum.min.js"],
  "dependencies": {
-    "es6-promise": "#master"
+    "es6-promise": "#master",
+    "bignumber.js": ">=2.0.0"
  },
  "repository": {
    "type": "git",
--- a/libjsqrc/ethereumjs/dist/ethereum.js
+++ b/libjsqrc/ethereumjs/dist/ethereum.js
--- a/libjsqrc/ethereumjs/dist/ethereum.js.map
+++ b/libjsqrc/ethereumjs/dist/ethereum.js.map
--- a/libjsqrc/ethereumjs/dist/ethereum.min.js
+++ b/libjsqrc/ethereumjs/dist/ethereum.min.js
--- a/libjsqrc/ethereumjs/example/balance.html
+++ b/libjsqrc/ethereumjs/example/balance.html
@ -3,6 +3,7 @@

 <head>
 <script type="text/javascript" src="js/es6-promise/promise.min.js"></script>
+<script type="text/javascript" src="js/bignumber.js/bignumber.min.js"></script>
 <script type="text/javascript" src="../dist/ethereum.js"></script>
 <script type="text/javascript">
   
--- a/libjsqrc/ethereumjs/example/contract.html
+++ b/libjsqrc/ethereumjs/example/contract.html
@ -3,6 +3,7 @@

 <head>
 <script type="text/javascript" src="js/es6-promise/promise.min.js"></script>
+<script type="text/javascript" src="js/bignumber.js/bignumber.min.js"></script>
 <script type="text/javascript" src="../dist/ethereum.js"></script>
 <script type="text/javascript">

@ -43,7 +44,7 @@

        // create contract
        web3.eth.transact({code: web3.eth.solidity(source)}).then(function (address) {
-            contract = web3.contract(address, desc);
+            contract = web3.eth.contract(address, desc);
            document.getElementById('call').style.visibility = 'visible';
        });
    }
--- a/libjsqrc/ethereumjs/gulpfile.js
+++ b/libjsqrc/ethereumjs/gulpfile.js
@ -90,7 +90,7 @@ gulp.task('uglify', ['build'], function(){
    return uglifyFile('ethereum');
 });

-gulp.task('uglify', ['buildDev'], function(){
+gulp.task('uglifyDev', ['buildDev'], function(){
    return uglifyFile('ethereum');
 });

@ -99,6 +99,6 @@ gulp.task('watch', function() {
 });

 gulp.task('release', ['bower', 'lint', 'build', 'uglify']);
-gulp.task('dev', ['bower', 'lint', 'buildDev', 'uglify']);
+gulp.task('dev', ['bower', 'lint', 'buildDev', 'uglifyDev']);
 gulp.task('default', ['dev']);

--- a/libjsqrc/ethereumjs/index.js
+++ b/libjsqrc/ethereumjs/index.js
@ -1,8 +1,11 @@
 var web3 = require('./lib/web3');
+var ProviderManager = require('./lib/providermanager');
+web3.provider = new ProviderManager();
+web3.filter = require('./lib/filter');
 web3.providers.WebSocketProvider = require('./lib/websocket');
 web3.providers.HttpRpcProvider = require('./lib/httprpc');
 web3.providers.QtProvider = require('./lib/qt');
 web3.providers.AutoProvider = require('./lib/autoprovider');
-web3.contract = require('./lib/contract');
+web3.eth.contract = require('./lib/contract');

 module.exports = web3;
--- a/libjsqrc/ethereumjs/lib/abi.js
+++ b/libjsqrc/ethereumjs/lib/abi.js
@ -23,18 +23,19 @@

 // TODO: is these line is supposed to be here? 
 if (process.env.NODE_ENV !== 'build') {
-    var web3 = require('./web3'); // jshint ignore:line
+    var BigNumber = require('bignumber.js'); // jshint ignore:line
 }

-// TODO: make these be actually accurate instead of falling back onto JS's doubles.
-var hexToDec = function (hex) {
-    return parseInt(hex, 16).toString();
-};
+var web3 = require('./web3'); // jshint ignore:line

-var decToHex = function (dec) {
-    return parseInt(dec).toString(16);
-};
+BigNumber.config({ ROUNDING_MODE: BigNumber.ROUND_DOWN });

+var ETH_PADDING = 32;
+
+/// Finds first index of array element matching pattern
+/// @param array
+/// @param callback pattern
+/// @returns index of element
 var findIndex = function (array, callback) {
    var end = false;
    var i = 0;
@ -44,106 +45,114 @@ var findIndex = function (array, callback) {
    return end ? i - 1 : -1;
 };

+/// @returns a function that is used as a pattern for 'findIndex'
 var findMethodIndex = function (json, methodName) {
    return findIndex(json, function (method) {
        return method.name === methodName;
    });
 };

-var padLeft = function (string, chars) {
-    return new Array(chars - string.length + 1).join("0") + string;
+/// @param string string to be padded
+/// @param number of characters that result string should have
+/// @param sign, by default 0
+/// @returns right aligned string
+var padLeft = function (string, chars, sign) {
+    return new Array(chars - string.length + 1).join(sign ? sign : "0") + string;
 };

-var calcBitPadding = function (type, expected) {
-    var value = type.slice(expected.length);
-    if (value === "") {
-        return 32;
-    }
-    return parseInt(value) / 8;
+/// @param expected type prefix (string)
+/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false
+var prefixedType = function (prefix) {
+    return function (type) {
+        return type.indexOf(prefix) === 0;
+    };
 };

-var calcBytePadding = function (type, expected) {
-    var value = type.slice(expected.length);
-    if (value === "") {
-        return 32;
-    }
-    return parseInt(value);
+/// @param expected type name (string)
+/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false
+var namedType = function (name) {
+    return function (type) {
+        return name === type;
+    };
 };

-var calcRealPadding = function (type, expected) {
-    var value = type.slice(expected.length);
-    if (value === "") {
-        return 32;
-    }
-    var sizes = value.split('x');
-    for (var padding = 0, i = 0; i < sizes; i++) {
-        padding += (sizes[i] / 8);
-    }
-    return padding;
+var arrayType = function (type) {
+    return type.slice(-2) === '[]';
 };

-var setupInputTypes = function () {
+/// Formats input value to byte representation of int
+/// If value is negative, return it's two's complement
+/// If the value is floating point, round it down
+/// @returns right-aligned byte representation of int
+var formatInputInt = function (value) {
+    var padding = ETH_PADDING * 2;
+    if (value instanceof BigNumber || typeof value === 'number') {
+        if (typeof value === 'number')
+            value = new BigNumber(value);
+        value = value.round();

-    // convert from int, decimal-string, prefixed hex string whatever into a bare hex string.
-    var formatStandard = function (value) {
-        if (typeof value === "number")
-            return value.toString(16);
-        else if (typeof value === "string" && value.indexOf('0x') === 0)
-            return value.substr(2);
-//        else if (typeof value === "string")
-//            return web3.toHex(value);
+        if (value.lessThan(0)) 
+            value = new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).plus(value).plus(1);
+        value = value.toString(16);
+    }
+    else if (value.indexOf('0x') === 0)
+        value = value.substr(2);
+    else if (typeof value === 'string')
+        value = formatInputInt(new BigNumber(value));
    else
-            return (+value).toString(16);
+        value = (+value).toString(16);
+    return padLeft(value, padding);
 };

-    var prefixedType = function (prefix, calcPadding) {
-        return function (type, value) {
-            var expected = prefix;
-            if (type.indexOf(expected) !== 0) {
-                return false;
-            }
-
-            var padding = calcPadding(type, expected);
-            if (padding > 32)
-                return false;   // not allowed to be so big.
-            padding = 32;   // override as per the new ABI.
-
-            if (prefix === "string")
-                return web3.fromAscii(value, padding).substr(2);
-            return padLeft(formatStandard(value), padding * 2);
+/// Formats input value to byte representation of string
+/// @returns left-algined byte representation of string
+var formatInputString = function (value) {
+    return web3.fromAscii(value, ETH_PADDING).substr(2);
 };
-    };
-
-    var namedType = function (name, padding, formatter) {
-        return function (type, value) {
-            if (type !== name) {
-                return false;
-            }

-            padding = 32;   //override as per the new ABI.
-
-            return padLeft(formatter ? formatter(value) : value, padding * 2);
+/// Formats input value to byte representation of bool
+/// @returns right-aligned byte representation bool
+var formatInputBool = function (value) {
+    return '000000000000000000000000000000000000000000000000000000000000000' + (value ?  '1' : '0');
 };
+
+/// Formats input value to byte representation of real
+/// Values are multiplied by 2^m and encoded as integers
+/// @returns byte representation of real
+var formatInputReal = function (value) {
+    return formatInputInt(new BigNumber(value).times(new BigNumber(2).pow(128))); 
 };

-    var formatBool = function (value) {
-        return value ? '01' : '00';
+var dynamicTypeBytes = function (type, value) {
+    // TODO: decide what to do with array of strings
+    if (arrayType(type) || prefixedType('string')(type))
+        return formatInputInt(value.length); 
+    return "";
 };

+/// Setups input formatters for solidity types
+/// @returns an array of input formatters 
+var setupInputTypes = function () {
+    
    return [
-        prefixedType('uint', calcBitPadding),
-        prefixedType('int', calcBitPadding),
-        prefixedType('hash', calcBitPadding),
-        prefixedType('string', calcBytePadding),
-        prefixedType('real', calcRealPadding),
-        prefixedType('ureal', calcRealPadding),
-        namedType('address', 20, formatStandard),
-        namedType('bool', 1, formatBool),
+        { type: prefixedType('uint'), format: formatInputInt },
+        { type: prefixedType('int'), format: formatInputInt },
+        { type: prefixedType('hash'), format: formatInputInt },
+        { type: prefixedType('string'), format: formatInputString }, 
+        { type: prefixedType('real'), format: formatInputReal },
+        { type: prefixedType('ureal'), format: formatInputReal },
+        { type: namedType('address'), format: formatInputInt },
+        { type: namedType('bool'), format: formatInputBool }
    ];
 };

 var inputTypes = setupInputTypes();

+/// Formats input params to bytes
+/// @param contract json abi
+/// @param name of the method that we want to use
+/// @param array of params that will be formatted to bytes
+/// @returns bytes representation of input params
 var toAbiInput = function (json, methodName, params) {
    var bytes = "";
    var index = findMethodIndex(json, methodName);
@ -153,74 +162,120 @@ var toAbiInput = function (json, methodName, params) {
    }

    var method = json[index];
+    var padding = ETH_PADDING * 2;

-    for (var i = 0; i < method.inputs.length; i++) {
-        var found = false;
-        for (var j = 0; j < inputTypes.length && !found; j++) {
-            found = inputTypes[j](method.inputs[i].type, params[i]);
-        }
-        if (!found) {
-            console.error('unsupported json type: ' + method.inputs[i].type);
+    /// first we iterate in search for dynamic 
+    method.inputs.forEach(function (input, index) {
+        bytes += dynamicTypeBytes(input.type, params[index]);
+    });
+
+    method.inputs.forEach(function (input, i) {
+        var typeMatch = false;
+        for (var j = 0; j < inputTypes.length && !typeMatch; j++) {
+            typeMatch = inputTypes[j].type(method.inputs[i].type, params[i]);
        }
-        bytes += found;
+        if (!typeMatch) {
+            console.error('input parser does not support type: ' + method.inputs[i].type);
        }
+
+        var formatter = inputTypes[j - 1].format;
+        var toAppend = "";
+
+        if (arrayType(method.inputs[i].type))
+            toAppend = params[i].reduce(function (acc, curr) {
+                return acc + formatter(curr);
+            }, "");
+        else
+            toAppend = formatter(params[i]);
+
+        bytes += toAppend; 
+    });
    return bytes;
 };

-var setupOutputTypes = function () {
+/// Check if input value is negative
+/// @param value is hex format
+/// @returns true if it is negative, otherwise false
+var signedIsNegative = function (value) {
+    return (new BigNumber(value.substr(0, 1), 16).toString(2).substr(0, 1)) === '1';
+};

-    var prefixedType = function (prefix, calcPadding) {
-        return function (type) {
-            var expected = prefix;
-            if (type.indexOf(expected) !== 0) {
-                return -1;
+/// Formats input right-aligned input bytes to int
+/// @returns right-aligned input bytes formatted to int
+var formatOutputInt = function (value) {
+    // check if it's negative number
+    // it it is, return two's complement
+    if (signedIsNegative(value)) {
+        return new BigNumber(value, 16).minus(new BigNumber('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16)).minus(1);
    }
-
-            var padding = calcPadding(type, expected);
-            if (padding > 32)
-                return -1;   // not allowed to be so big.
-            padding = 32;  // override as per the new ABI.
-            return padding * 2;
-        };
+    return new BigNumber(value, 16);
 };

-    var namedType = function (name, padding) {
-        return function (type) {
-            padding = 32;  // override as per the new ABI.
-            return name === type ? padding * 2 : -1;
+/// Formats big right-aligned input bytes to uint
+/// @returns right-aligned input bytes formatted to uint
+var formatOutputUInt = function (value) {
+    return new BigNumber(value, 16);
 };
+
+/// @returns input bytes formatted to real
+var formatOutputReal = function (value) {
+    return formatOutputInt(value).dividedBy(new BigNumber(2).pow(128)); 
 };

-    var formatInt = function (value) {
-        return value.length <= 8 ? +parseInt(value, 16) : hexToDec(value);
+/// @returns input bytes formatted to ureal
+var formatOutputUReal = function (value) {
+    return formatOutputUInt(value).dividedBy(new BigNumber(2).pow(128)); 
 };

-    var formatHash = function (value) {
+/// @returns right-aligned input bytes formatted to hex
+var formatOutputHash = function (value) {
    return "0x" + value;
 };

-    var formatBool = function (value) {
-        return value === '1' ? true : false;
+/// @returns right-aligned input bytes formatted to bool
+var formatOutputBool = function (value) {
+    return value === '0000000000000000000000000000000000000000000000000000000000000001' ? true : false;
 };

-    var formatString = function (value) {
+/// @returns left-aligned input bytes formatted to ascii string
+var formatOutputString = function (value) {
    return web3.toAscii(value);
 };

+/// @returns right-aligned input bytes formatted to address
+var formatOutputAddress = function (value) {
+    return "0x" + value.slice(value.length - 40, value.length);
+};
+
+var dynamicBytesLength = function (type) {
+    if (arrayType(type) || prefixedType('string')(type))
+        return ETH_PADDING * 2;
+    return 0;
+};
+
+/// Setups output formaters for solidity types
+/// @returns an array of output formatters
+var setupOutputTypes = function () {
+
    return [
-    { padding: prefixedType('uint', calcBitPadding), format: formatInt },
-    { padding: prefixedType('int', calcBitPadding), format: formatInt },
-    { padding: prefixedType('hash', calcBitPadding), format: formatHash },
-    { padding: prefixedType('string', calcBytePadding), format: formatString },
-    { padding: prefixedType('real', calcRealPadding), format: formatInt },
-    { padding: prefixedType('ureal', calcRealPadding), format: formatInt },
-    { padding: namedType('address', 20) },
-    { padding: namedType('bool', 1), format: formatBool }
+        { type: prefixedType('uint'), format: formatOutputUInt },
+        { type: prefixedType('int'), format: formatOutputInt },
+        { type: prefixedType('hash'), format: formatOutputHash },
+        { type: prefixedType('string'), format: formatOutputString },
+        { type: prefixedType('real'), format: formatOutputReal },
+        { type: prefixedType('ureal'), format: formatOutputUReal },
+        { type: namedType('address'), format: formatOutputAddress },
+        { type: namedType('bool'), format: formatOutputBool }
    ];
 };

 var outputTypes = setupOutputTypes();

+/// Formats output bytes back to param list
+/// @param contract json abi
+/// @param name of the method that we want to use
+/// @param bytes representtion of output 
+/// @returns array of output params 
 var fromAbiOutput = function (json, methodName, output) {
    var index = findMethodIndex(json, methodName);

@ -232,25 +287,51 @@ var fromAbiOutput = function (json, methodName, output) {

    var result = [];
    var method = json[index];
-    for (var i = 0; i < method.outputs.length; i++) {
-        var padding = -1;
-        for (var j = 0; j < outputTypes.length && padding === -1; j++) {
-            padding = outputTypes[j].padding(method.outputs[i].type);
+    var padding = ETH_PADDING * 2;
+
+    var dynamicPartLength = method.outputs.reduce(function (acc, curr) {
+        return acc + dynamicBytesLength(curr.type);
+    }, 0);
+    
+    var dynamicPart = output.slice(0, dynamicPartLength);
+    output = output.slice(dynamicPartLength);
+
+    method.outputs.forEach(function (out, i) {
+        var typeMatch = false;
+        for (var j = 0; j < outputTypes.length && !typeMatch; j++) {
+            typeMatch = outputTypes[j].type(method.outputs[i].type);
        }

-        if (padding === -1) {
-            // not found output parsing
-            continue;
+        if (!typeMatch) {
+            console.error('output parser does not support type: ' + method.outputs[i].type);
        }
-        var res = output.slice(0, padding);
+
        var formatter = outputTypes[j - 1].format;
-        result.push(formatter ? formatter(res) : ("0x" + res));
+        if (arrayType(method.outputs[i].type)) {
+            var size = formatOutputUInt(dynamicPart.slice(0, padding));
+            dynamicPart = dynamicPart.slice(padding);
+            var array = [];
+            for (var k = 0; k < size; k++) {
+                array.push(formatter(output.slice(0, padding))); 
+                output = output.slice(padding);
+            }
+            result.push(array);
+        }
+        else if (prefixedType('string')(method.outputs[i].type)) {
+            dynamicPart = dynamicPart.slice(padding); 
+            result.push(formatter(output.slice(0, padding)));
+            output = output.slice(padding);
+        } else {
+            result.push(formatter(output.slice(0, padding)));
            output = output.slice(padding);
        }
+    });

    return result;
 };

+/// @param json abi for contract
+/// @returns input parser object for given json abi
 var inputParser = function (json) {
    var parser = {};
    json.forEach(function (method) {
@ -263,6 +344,8 @@ var inputParser = function (json) {
    return parser;
 };

+/// @param json abi for contract
+/// @returns output parser for given json abi
 var outputParser = function (json) {
    var parser = {};
    json.forEach(function (method) {
@ -274,6 +357,9 @@ var outputParser = function (json) {
    return parser;
 };

+/// @param json abi for contract
+/// @param method name for which we want to get method signature
+/// @returns (promise) contract method signature for method with given name
 var methodSignature = function (json, name) {
    var method = json[findMethodIndex(json, name)];
    var result = name + '(';
--- a/libjsqrc/ethereumjs/lib/autoprovider.js
+++ b/libjsqrc/ethereumjs/lib/autoprovider.js
@ -27,12 +27,21 @@
 * if it fails, it uses HttpRpcProvider
 */

-// TODO: is these line is supposed to be here? 
+var web3 = require('./web3'); // jshint ignore:line
 if (process.env.NODE_ENV !== 'build') {
    var WebSocket = require('ws'); // jshint ignore:line
-    var web3 = require('./web3'); // jshint ignore:line
 }

+/**
+ * AutoProvider object prototype is implementing 'provider protocol'
+ * Automatically tries to setup correct provider(Qt, WebSockets or HttpRpc)
+ * First it checkes if we are ethereum browser (if navigator.qt object is available)
+ * if yes, we are using QtProvider
+ * if no, we check if it is possible to establish websockets connection with ethereum (ws://localhost:40404/eth is default)
+ * if it's not possible, we are using httprpc provider (http://localhost:8080)
+ * The constructor allows you to specify uris on which we are trying to connect over http or websockets
+ * You can do that by passing objects with fields httrpc and websockets
+ */
 var AutoProvider = function (userOptions) {
    if (web3.haveProvider()) {
        return;
@ -63,7 +72,7 @@ var AutoProvider = function (userOptions) {
            self.poll = self.provider.poll.bind(self.provider);
        }
        self.sendQueue.forEach(function (payload) {
-            self.provider(payload);
+            self.provider.send(payload);
        });
        self.onmessageQueue.forEach(function (handler) {
            self.provider.onmessage = handler;
@ -81,6 +90,8 @@ var AutoProvider = function (userOptions) {
    };
 };

+/// Sends message forward to the provider, that is being used
+/// if provider is not yet set, enqueues the message
 AutoProvider.prototype.send = function (payload) {
    if (this.provider) {
        this.provider.send(payload);
@ -89,6 +100,7 @@ AutoProvider.prototype.send = function (payload) {
    this.sendQueue.push(payload);
 };

+/// On incoming message sends the message to the provider that is currently being used
 Object.defineProperty(AutoProvider.prototype, 'onmessage', {
    set: function (handler) {
        if (this.provider) {
--- a/libjsqrc/ethereumjs/lib/contract.js
+++ b/libjsqrc/ethereumjs/lib/contract.js
@ -20,16 +20,32 @@
 * @date 2014
 */

-// TODO: is these line is supposed to be here? 
-if (process.env.NODE_ENV !== 'build') {
 var web3 = require('./web3'); // jshint ignore:line
-}
-
 var abi = require('./abi');

-// method signature length in bytes
+/// method signature length in bytes
 var ETH_METHOD_SIGNATURE_LENGTH = 4;

+/**
+ * This method should be called when we want to call / transact some solidity method from javascript
+ * it returns an object which has same methods available as solidity contract description
+ * usage example: 
+ *
+ * var abi = [{
+ *      name: 'myMethod',
+ *      inputs: [{ name: 'a', type: 'string' }],
+ *      outputs: [{name: 'd', type: 'string' }]
+ * }];  // contract abi
+ *
+ * var myContract = web3.eth.contract('0x0123123121', abi); // creation of contract object
+ *
+ * myContract.myMethod('this is test string param for call').call(); // myMethod call
+ * myContract.myMethod('this is test string param for transact').transact() // myMethod transact
+ *
+ * @param address - address of the contract, which should be called
+ * @param desc - abi json description of the contract, which is being created
+ * @returns contract object
+ */
 var contract = function (address, desc) {
    var inputParser = abi.inputParser(desc);
    var outputParser = abi.outputParser(desc);
@ -70,3 +86,4 @@ var contract = function (address, desc) {
 };

 module.exports = contract;
+
--- a/libjsqrc/ethereumjs/lib/filter.js
+++ b/libjsqrc/ethereumjs/lib/filter.js
@ -0,0 +1,86 @@
+/*
+    This file is part of ethereum.js.
+
+    ethereum.js is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    ethereum.js is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file filter.js
+ * @authors:
+ *   Jeffrey Wilcke <jeff@ethdev.com>
+ *   Marek Kotewicz <marek@ethdev.com>
+ *   Marian Oancea <marian@ethdev.com>
+ *   Gav Wood <g@ethdev.com>
+ * @date 2014
+ */
+
+var web3 = require('./web3'); // jshint ignore:line
+
+/// should be used when we want to watch something
+/// it's using inner polling mechanism and is notified about changes
+var Filter = function(options, impl) {
+    this.impl = impl;
+    this.callbacks = [];
+
+    var self = this;
+    this.promise = impl.newFilter(options);
+    this.promise.then(function (id) {
+        self.id = id;
+        web3.on(impl.changed, id, self.trigger.bind(self));
+        web3.provider.startPolling({call: impl.changed, args: [id]}, id);
+    });
+};
+
+/// alias for changed*
+Filter.prototype.arrived = function(callback) {
+    this.changed(callback);
+};
+
+/// gets called when there is new eth/shh message
+Filter.prototype.changed = function(callback) {
+    var self = this;
+    this.promise.then(function(id) {
+        self.callbacks.push(callback);
+    });
+};
+
+/// trigger calling new message from people
+Filter.prototype.trigger = function(messages) {
+    for(var i = 0; i < this.callbacks.length; i++) {
+        this.callbacks[i].call(this, messages);
+    }
+};
+
+/// should be called to uninstall current filter
+Filter.prototype.uninstall = function() {
+    var self = this;
+    this.promise.then(function (id) {
+        self.impl.uninstallFilter(id);
+        web3.provider.stopPolling(id);
+        web3.off(impl.changed, id);
+    });
+};
+
+/// should be called to manually trigger getting latest messages from the client
+Filter.prototype.messages = function() {
+    var self = this;
+    return this.promise.then(function (id) {
+        return self.impl.getMessages(id);
+    });
+};
+
+/// alias for messages
+Filter.prototype.logs = function () {
+    return this.messages();
+};
+
+module.exports = Filter;
--- a/libjsqrc/ethereumjs/lib/httprpc.js
+++ b/libjsqrc/ethereumjs/lib/httprpc.js
@ -26,11 +26,21 @@ if (process.env.NODE_ENV !== 'build') {
    var XMLHttpRequest = require('xmlhttprequest').XMLHttpRequest; // jshint ignore:line
 }

+/**
+ * HttpRpcProvider object prototype is implementing 'provider protocol'
+ * Should be used when we want to connect to ethereum backend over http && jsonrpc
+ * It's compatible with cpp client
+ * The contructor allows to specify host uri
+ * This provider is using in-browser polling mechanism
+ */
 var HttpRpcProvider = function (host) {
    this.handlers = [];
    this.host = host;
 };

+/// Transforms inner message to proper jsonrpc object
+/// @param inner message object
+/// @returns jsonrpc object
 function formatJsonRpcObject(object) {
    return {
        jsonrpc: '2.0',
@ -40,6 +50,9 @@ function formatJsonRpcObject(object) {
    };
 }

+/// Transforms jsonrpc object to inner message
+/// @param incoming jsonrpc message 
+/// @returns inner message object
 function formatJsonRpcMessage(message) {
    var object = JSON.parse(message);

@ -50,6 +63,10 @@ function formatJsonRpcMessage(message) {
    };
 }

+/// Prototype object method 
+/// Asynchronously sends request to server
+/// @param payload is inner message object
+/// @param cb is callback which is being called when response is comes back
 HttpRpcProvider.prototype.sendRequest = function (payload, cb) {
    var data = formatJsonRpcObject(payload);

@ -63,6 +80,11 @@ HttpRpcProvider.prototype.sendRequest = function (payload, cb) {
    };
 };

+/// Prototype object method
+/// Should be called when we want to send single api request to server
+/// Asynchronous
+/// On response it passes message to handlers
+/// @param payload is inner message object
 HttpRpcProvider.prototype.send = function (payload) {
    var self = this;
    this.sendRequest(payload, function (request) {
@ -72,6 +94,13 @@ HttpRpcProvider.prototype.send = function (payload) {
    });
 };

+/// Prototype object method
+/// Should be called only for polling requests
+/// Asynchronous
+/// On response it passege message to handlers, but only if message's result is true or not empty array
+/// Otherwise response is being silently ignored
+/// @param payload is inner message object
+/// @id is id of poll that we are calling
 HttpRpcProvider.prototype.poll = function (payload, id) {
    var self = this;
    this.sendRequest(payload, function (request) {
@ -85,6 +114,8 @@ HttpRpcProvider.prototype.poll = function (payload, id) {
    });
 };

+/// Prototype object property
+/// Should be used to set message handlers for this provider
 Object.defineProperty(HttpRpcProvider.prototype, "onmessage", {
    set: function (handler) {
        this.handlers.push(handler);
@ -92,3 +123,4 @@ Object.defineProperty(HttpRpcProvider.prototype, "onmessage", {
 });

 module.exports = HttpRpcProvider;
+
--- a/libjsqrc/ethereumjs/lib/providermanager.js
+++ b/libjsqrc/ethereumjs/lib/providermanager.js
@ -0,0 +1,119 @@
+/*
+    This file is part of ethereum.js.
+
+    ethereum.js is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    ethereum.js is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/** @file providermanager.js
+ * @authors:
+ *   Jeffrey Wilcke <jeff@ethdev.com>
+ *   Marek Kotewicz <marek@ethdev.com>
+ *   Marian Oancea <marian@ethdev.com>
+ *   Gav Wood <g@ethdev.com>
+ * @date 2014
+ */
+
+var web3 = require('./web3'); // jshint ignore:line
+
+/**
+ * Provider manager object prototype
+ * It's responsible for passing messages to providers
+ * If no provider is set it's responsible for queuing requests
+ * It's also responsible for polling the ethereum node for incoming messages
+ * Default poll timeout is 12 seconds
+ * If we are running ethereum.js inside ethereum browser, there are backend based tools responsible for polling,
+ * and provider manager polling mechanism is not used
+ */
+var ProviderManager = function() {
+    this.queued = [];
+    this.polls = [];
+    this.ready = false;
+    this.provider = undefined;
+    this.id = 1;
+
+    var self = this;
+    var poll = function () {
+        if (self.provider && self.provider.poll) {
+            self.polls.forEach(function (data) {
+                data.data._id = self.id;
+                self.id++;
+                self.provider.poll(data.data, data.id);
+            });
+        }
+        setTimeout(poll, 12000);
+    };
+    poll();
+};
+
+/// sends outgoing requests, if provider is not available, enqueue the request
+ProviderManager.prototype.send = function(data, cb) {
+    data._id = this.id;
+    if (cb) {
+        web3._callbacks[data._id] = cb;
+    }
+
+    data.args = data.args || [];
+    this.id++;
+
+    if(this.provider !== undefined) {
+        this.provider.send(data);
+    } else {
+        console.warn("provider is not set");
+        this.queued.push(data);
+    }
+};
+
+/// setups provider, which will be used for sending messages
+ProviderManager.prototype.set = function(provider) {
+    if(this.provider !== undefined && this.provider.unload !== undefined) {
+        this.provider.unload();
+    }
+
+    this.provider = provider;
+    this.ready = true;
+};
+
+/// resends queued messages
+ProviderManager.prototype.sendQueued = function() {
+    for(var i = 0; this.queued.length; i++) {
+        // Resend
+        this.send(this.queued[i]);
+    }
+};
+
+/// @returns true if the provider i properly set
+ProviderManager.prototype.installed = function() {
+    return this.provider !== undefined;
+};
+
+/// this method is only used, when we do not have native qt bindings and have to do polling on our own
+/// should be callled, on start watching for eth/shh changes
+ProviderManager.prototype.startPolling = function (data, pollId) {
+    if (!this.provider || !this.provider.poll) {
+        return;
+    }
+    this.polls.push({data: data, id: pollId});
+};
+
+/// should be called to stop polling for certain watch changes
+ProviderManager.prototype.stopPolling = function (pollId) {
+    for (var i = this.polls.length; i--;) {
+        var poll = this.polls[i];
+        if (poll.id === pollId) {
+            this.polls.splice(i, 1);
+        }
+    }
+};
+
+module.exports = ProviderManager;
+
--- a/libjsqrc/ethereumjs/lib/qt.js
+++ b/libjsqrc/ethereumjs/lib/qt.js
@ -21,6 +21,11 @@
 * @date 2014
 */

+/**
+ * QtProvider object prototype is implementing 'provider protocol'
+ * Should be used inside ethereum browser. It's compatible with cpp and go clients.
+ * It uses navigator.qt object to pass the messages to native bindings
+ */
 var QtProvider = function() {
    this.handlers = [];

@ -32,10 +37,17 @@ var QtProvider = function() {
    };
 };

+/// Prototype object method
+/// Should be called when we want to send single api request to native bindings
+/// Asynchronous
+/// Response will be received by navigator.qt.onmessage method and passed to handlers
+/// @param payload is inner message object
 QtProvider.prototype.send = function(payload) {
    navigator.qt.postMessage(JSON.stringify(payload));
 };

+/// Prototype object property
+/// Should be used to set message handlers for this provider
 Object.defineProperty(QtProvider.prototype, "onmessage", {
    set: function(handler) {
        this.handlers.push(handler);
--- a/libjsqrc/ethereumjs/lib/web3.js
+++ b/libjsqrc/ethereumjs/lib/web3.js
@ -14,7 +14,7 @@
    You should have received a copy of the GNU Lesser General Public License
    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.
 */
-/** @file main.js
+/** @file web3.js
 * @authors:
 *   Jeffrey Wilcke <jeff@ethdev.com>
 *   Marek Kotewicz <marek@ethdev.com>
@ -23,6 +23,9 @@
 * @date 2014
 */

+/// Recursively resolves all promises in given object and replaces the resolved values with promises
+/// @param any object/array/promise/anything else..
+/// @returns (resolves) object with replaced promises with their result 
 function flattenPromise (obj) {
    if (obj instanceof Promise) {
        return Promise.resolve(obj);
@ -62,12 +65,14 @@ function flattenPromise (obj) {
    return Promise.resolve(obj);
 }

+/// @returns an array of objects describing web3 api methods
 var web3Methods = function () {
    return [
    { name: 'sha3', call: 'web3_sha3' }
    ];
 };

+/// @returns an array of objects describing web3.eth api methods
 var ethMethods = function () {
    var blockCall = function (args) {
        return typeof args[0] === "string" ? "eth_blockByHash" : "eth_blockByNumber";
@ -101,6 +106,7 @@ var ethMethods = function () {
    return methods;
 };

+/// @returns an array of objects describing web3.eth api properties
 var ethProperties = function () {
    return [
    { name: 'coinbase', getter: 'eth_coinbase', setter: 'eth_setCoinbase' },
@ -115,6 +121,7 @@ var ethProperties = function () {
    ];
 };

+/// @returns an array of objects describing web3.db api methods
 var dbMethods = function () {
    return [
    { name: 'put', call: 'db_put' },
@ -124,6 +131,7 @@ var dbMethods = function () {
    ];
 };

+/// @returns an array of objects describing web3.shh api methods
 var shhMethods = function () {
    return [
    { name: 'post', call: 'shh_post' },
@ -134,6 +142,7 @@ var shhMethods = function () {
    ];
 };

+/// @returns an array of objects describing web3.eth.watch api methods
 var ethWatchMethods = function () {
    var newFilter = function (args) {
        return typeof args[0] === 'string' ? 'eth_newFilterString' : 'eth_newFilter';
@ -146,6 +155,7 @@ var ethWatchMethods = function () {
    ];
 };

+/// @returns an array of objects describing web3.shh.watch api methods
 var shhWatchMethods = function () {
    return [
    { name: 'newFilter', call: 'shh_newFilter' },
@ -154,6 +164,8 @@ var shhWatchMethods = function () {
    ];
 };

+/// creates methods in a given object based on method description on input
+/// setups api calls for these methods
 var setupMethods = function (obj, methods) {
    methods.forEach(function (method) {
        obj[method.name] = function () {
@ -177,6 +189,8 @@ var setupMethods = function (obj, methods) {
    });
 };

+/// creates properties in a given object based on properties description on input
+/// setups api calls for these properties
 var setupProperties = function (obj, properties) {
    properties.forEach(function (property) {
        var proto = {};
@ -221,7 +235,7 @@ var decToHex = function (dec) {
    return parseInt(dec).toString(16);
 };

-
+/// setups web3 object, and it's in-browser executed methods
 var web3 = {
    _callbacks: {},
    _events: {},
@ -237,6 +251,7 @@ var web3 = {
        return hex;
    },

+    /// @returns ascii string representation of hex value prefixed with 0x
    toAscii: function(hex) {
        // Find termination
        var str = "";
@ -244,17 +259,18 @@ var web3 = {
        if (hex.substring(0, 2) === '0x')
            i = 2;
        for(; i < l; i+=2) {
-            var code = hex.charCodeAt(i);
+            var code = parseInt(hex.substr(i, 2), 16);
            if(code === 0) {
                break;
            }

-            str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
+            str += String.fromCharCode(code);
        }

        return str;
    },

+    /// @returns hex representation (prefixed by 0x) of ascii string
    fromAscii: function(str, pad) {
        pad = pad === undefined ? 0 : pad;
        var hex = this.toHex(str);
@ -263,14 +279,17 @@ var web3 = {
        return "0x" + hex;
    },

+    /// @returns decimal representaton of hex value prefixed by 0x
    toDecimal: function (val) {
        return hexToDec(val.substring(2));
    },

+    /// @returns hex representation (prefixed by 0x) of decimal value
    fromDecimal: function (val) {
        return "0x" + decToHex(val);
    },

+    /// used to transform value/string to eth string
    toEth: function(str) {
        var val = typeof str === "string" ? str.indexOf('0x') === 0 ? parseInt(str.substr(2), 16) : parseInt(str) : str;
        var unit = 0;
@ -294,24 +313,24 @@ var web3 = {
        return s + ' ' + units[unit];
    },

+    /// eth object prototype
    eth: {
-        prototype: Object(), // jshint ignore:line
        watch: function (params) {
-            return new Filter(params, ethWatch);
+            return new web3.filter(params, ethWatch);
        }
    },

-    db: {
-        prototype: Object() // jshint ignore:line
-    },
+    /// db object prototype
+    db: {},

+    /// shh object prototype
    shh: {
-        prototype: Object(), // jshint ignore:line
        watch: function (params) {
-            return new Filter(params, shhWatch);
+            return new web3.filter(params, shhWatch);
        }
    },

+    /// used by filter to register callback with given id
    on: function(event, id, cb) {
        if(web3._events[event] === undefined) {
            web3._events[event] = {};
@ -321,6 +340,7 @@ var web3 = {
        return this;
    },

+    /// used by filter to unregister callback with given id
    off: function(event, id) {
        if(web3._events[event] !== undefined) {
            delete web3._events[event][id];
@ -329,6 +349,7 @@ var web3 = {
        return this;
    },

+    /// used to trigger callback registered by filter
    trigger: function(event, id, data) {
        var callbacks = web3._events[event];
        if (!callbacks || !callbacks[id]) {
@ -336,9 +357,15 @@ var web3 = {
        }
        var cb = callbacks[id];
        cb(data);
+    },
+
+    /// @returns true if provider is installed
+    haveProvider: function() {
+        return !!web3.provider.provider;
    }
 };

+/// setups all api methods
 setupMethods(web3, web3Methods());
 setupMethods(web3.eth, ethMethods());
 setupProperties(web3.eth, ethProperties());
@ -348,87 +375,14 @@ setupMethods(web3.shh, shhMethods());
 var ethWatch = {
    changed: 'eth_changed'
 };
+
 setupMethods(ethWatch, ethWatchMethods());
+
 var shhWatch = {
    changed: 'shh_changed'
 };
-setupMethods(shhWatch, shhWatchMethods());
-
-var ProviderManager = function() {
-    this.queued = [];
-    this.polls = [];
-    this.ready = false;
-    this.provider = undefined;
-    this.id = 1;
-
-    var self = this;
-    var poll = function () {
-        if (self.provider && self.provider.poll) {
-            self.polls.forEach(function (data) {
-                data.data._id = self.id;
-                self.id++;
-                self.provider.poll(data.data, data.id);
-            });
-        }
-        setTimeout(poll, 12000);
-    };
-    poll();
-};
-
-ProviderManager.prototype.send = function(data, cb) {
-    data._id = this.id;
-    if (cb) {
-        web3._callbacks[data._id] = cb;
-    }
-
-    data.args = data.args || [];
-    this.id++;
-
-    if(this.provider !== undefined) {
-        this.provider.send(data);
-    } else {
-        console.warn("provider is not set");
-        this.queued.push(data);
-    }
-};
-
-ProviderManager.prototype.set = function(provider) {
-    if(this.provider !== undefined && this.provider.unload !== undefined) {
-        this.provider.unload();
-    }
-
-    this.provider = provider;
-    this.ready = true;
-};
-
-ProviderManager.prototype.sendQueued = function() {
-    for(var i = 0; this.queued.length; i++) {
-        // Resend
-        this.send(this.queued[i]);
-    }
-};
-
-ProviderManager.prototype.installed = function() {
-    return this.provider !== undefined;
-};
-
-ProviderManager.prototype.startPolling = function (data, pollId) {
-    if (!this.provider || !this.provider.poll) {
-        return;
-    }
-    this.polls.push({data: data, id: pollId});
-};
-
-ProviderManager.prototype.stopPolling = function (pollId) {
-    for (var i = this.polls.length; i--;) {
-        var poll = this.polls[i];
-        if (poll.id === pollId) {
-            this.polls.splice(i, 1);
-        }
-    }
-};

-web3.provider = new ProviderManager();
+setupMethods(shhWatch, shhWatchMethods());

 web3.setProvider = function(provider) {
    provider.onmessage = messageHandler;
@ -436,60 +390,7 @@ web3.setProvider = function(provider) {
    web3.provider.sendQueued();
 };

-web3.haveProvider = function() {
-    return !!web3.provider.provider;
-};
-
-var Filter = function(options, impl) {
-    this.impl = impl;
-    this.callbacks = [];
-
-    var self = this;
-    this.promise = impl.newFilter(options);
-    this.promise.then(function (id) {
-        self.id = id;
-        web3.on(impl.changed, id, self.trigger.bind(self));
-        web3.provider.startPolling({call: impl.changed, args: [id]}, id);
-    });
-};
-
-Filter.prototype.arrived = function(callback) {
-    this.changed(callback);
-};
-
-Filter.prototype.changed = function(callback) {
-    var self = this;
-    this.promise.then(function(id) {
-        self.callbacks.push(callback);
-    });
-};
-
-Filter.prototype.trigger = function(messages) {
-    for(var i = 0; i < this.callbacks.length; i++) {
-        this.callbacks[i].call(this, messages);
-    }
-};
-
-Filter.prototype.uninstall = function() {
-    var self = this;
-    this.promise.then(function (id) {
-        self.impl.uninstallFilter(id);
-        web3.provider.stopPolling(id);
-        web3.off(impl.changed, id);
-    });
-};
-
-Filter.prototype.messages = function() {
-    var self = this;
-    return this.promise.then(function (id) {
-        return self.impl.getMessages(id);
-    });
-};
-
-Filter.prototype.logs = function () {
-    return this.messages();
-};
-
+/// callled when there is new incoming message
 function messageHandler(data) {
    if(data._event !== undefined) {
        web3.trigger(data._event, data._id, data.data);
@ -505,5 +406,5 @@ function messageHandler(data) {
    }
 }

-if (typeof(module) !== "undefined")
 module.exports = web3;
+
--- a/libjsqrc/ethereumjs/lib/websocket.js
+++ b/libjsqrc/ethereumjs/lib/websocket.js
@ -27,9 +27,17 @@ if (process.env.NODE_ENV !== 'build') {
    var WebSocket = require('ws'); // jshint ignore:line
 }

+/**
+ * WebSocketProvider object prototype is implementing 'provider protocol'
+ * Should be used when we want to connect to ethereum backend over websockets
+ * It's compatible with go client
+ * The constructor allows to specify host uri
+ */
 var WebSocketProvider = function(host) {
+
    // onmessage handlers
    this.handlers = [];
+
    // queue will be filled with messages if send is invoked before the ws is ready
    this.queued = [];
    this.ready = false;
@ -53,6 +61,11 @@ var WebSocketProvider = function(host) {
    };
 };

+/// Prototype object method
+/// Should be called when we want to send single api request to server
+/// Asynchronous, it's using websockets
+/// Response for the call will be received by ws.onmessage
+/// @param payload is inner message object
 WebSocketProvider.prototype.send = function(payload) {
    if (this.ready) {
        var data = JSON.stringify(payload);
@ -63,13 +76,20 @@ WebSocketProvider.prototype.send = function(payload) {
    }
 };

+/// Prototype object method
+/// Should be called to add handlers
 WebSocketProvider.prototype.onMessage = function(handler) {
    this.handlers.push(handler);
 };

+/// Prototype object method
+/// Should be called to close websockets connection
 WebSocketProvider.prototype.unload = function() {
    this.ws.close();
 };
+
+/// Prototype object property
+/// Should be used to set message handlers for this provider
 Object.defineProperty(WebSocketProvider.prototype, "onmessage", {
    set: function(provider) { this.onMessage(provider); }
 });
--- a/libjsqrc/ethereumjs/package.json
+++ b/libjsqrc/ethereumjs/package.json
@ -1,7 +1,7 @@
 {
  "name": "ethereum.js",
  "namespace": "ethereum",
-  "version": "0.0.7",
+  "version": "0.0.8",
  "description": "Ethereum Compatible JavaScript API",
  "main": "./index.js",
  "directories": {
@ -10,7 +10,8 @@
  "dependencies": {
    "es6-promise": "*",
    "ws": "*",
-    "xmlhttprequest": "*"
+    "xmlhttprequest": "*",
+    "bignumber.js": ">=2.0.0"
  },
  "devDependencies": {
    "bower": ">=1.3.0",
--- a/libjsqrc/ethereumjs/test/abi.parsers.js
+++ b/libjsqrc/ethereumjs/test/abi.parsers.js
@ -1,14 +1,11 @@
 var assert = require('assert');
+var BigNumber = require('bignumber.js');
 var abi = require('../lib/abi.js');
+var clone = function (object) { return JSON.parse(JSON.stringify(object)); };

-describe('abi', function() {
-    describe('inputParser', function() {
-        it('should parse ...', function() {
-
-            var desc =  [{
-                "name": "multiply",
-                "inputs": [
-                {
+var description =  [{
+    "name": "test",
+    "inputs": [{
        "name": "a",
        "type": "uint256"
    }
@ -21,17 +18,810 @@ describe('abi', function() {
    ]
 }];

-            var iParser = abi.inputParser(desc);
-            assert.equal(iParser.multiply(1), "0x000000000000000000000000000000000000000000000000000000000000000001");
+describe('abi', function() {
+    describe('inputParser', function() {
+        it('should parse input uint', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "uint" }
+            ];
+            
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test(1), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(parser.test(10), "000000000000000000000000000000000000000000000000000000000000000a");
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), 
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(
+                parser.test(new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16)),
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(parser.test(0.1), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test(3.9), "0000000000000000000000000000000000000000000000000000000000000003");
+            assert.equal(parser.test('0.1'), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test('3.9'), "0000000000000000000000000000000000000000000000000000000000000003");
+
+
+        });
+
+        it('should parse input uint128', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "uint128" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test(1), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(parser.test(10), "000000000000000000000000000000000000000000000000000000000000000a");
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), 
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(
+                parser.test(new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16)),
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(parser.test(0.1), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test(3.9), "0000000000000000000000000000000000000000000000000000000000000003");
+            assert.equal(parser.test('0.1'), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test('3.9'), "0000000000000000000000000000000000000000000000000000000000000003");

        });
+        
+        it('should parse input uint256', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "uint256" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test(1), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(parser.test(10), "000000000000000000000000000000000000000000000000000000000000000a");
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), 
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(
+                parser.test(new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16)),
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(parser.test(0.1), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test(3.9), "0000000000000000000000000000000000000000000000000000000000000003");
+            assert.equal(parser.test('0.1'), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test('3.9'), "0000000000000000000000000000000000000000000000000000000000000003");
+            
+        });
+
+        it('should parse input int', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "int" }
+            ];
+            
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test(1), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(parser.test(10), "000000000000000000000000000000000000000000000000000000000000000a");
+            assert.equal(parser.test(-1), "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
+            assert.equal(parser.test(-2), "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe");
+            assert.equal(parser.test(-16), "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0");
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), 
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(
+                parser.test(new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16)),
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(parser.test(0.1), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test(3.9), "0000000000000000000000000000000000000000000000000000000000000003");
+            assert.equal(parser.test('0.1'), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test('3.9'), "0000000000000000000000000000000000000000000000000000000000000003");
        });

+        it('should parse input int128', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "int128" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test(1), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(parser.test(10), "000000000000000000000000000000000000000000000000000000000000000a");
+            assert.equal(parser.test(-1), "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
+            assert.equal(parser.test(-2), "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe");
+            assert.equal(parser.test(-16), "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0");
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), 
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(
+                parser.test(new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16)),
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(parser.test(0.1), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test(3.9), "0000000000000000000000000000000000000000000000000000000000000003");
+            assert.equal(parser.test('0.1'), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test('3.9'), "0000000000000000000000000000000000000000000000000000000000000003");
+
+        });
+
+        it('should parse input int256', function() {
+        
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "int256" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test(1), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(parser.test(10), "000000000000000000000000000000000000000000000000000000000000000a");
+            assert.equal(parser.test(-1), "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
+            assert.equal(parser.test(-2), "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffe");
+            assert.equal(parser.test(-16), "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0");
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"), 
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(
+                parser.test(new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16)),
+                "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+                );
+            assert.equal(parser.test(0.1), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test(3.9), "0000000000000000000000000000000000000000000000000000000000000003");
+            assert.equal(parser.test('0.1'), "0000000000000000000000000000000000000000000000000000000000000000");
+            assert.equal(parser.test('3.9'), "0000000000000000000000000000000000000000000000000000000000000003");
+            
+        });
+
+        it('should parse input bool', function() {
+            
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: 'bool' }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test(true), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(parser.test(false), "0000000000000000000000000000000000000000000000000000000000000000");
+
+        });
+
+        it('should parse input hash', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "hash" }
+            ];
+            
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test("0x407d73d8a49eeb85d32cf465507dd71d507100c1"), "000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1");
+
+        }); 
+
+        it('should parse input hash256', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "hash256" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test("0x407d73d8a49eeb85d32cf465507dd71d507100c1"), "000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1");
+
+        });
+
+
+        it('should parse input hash160', function() {
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "hash160" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+            
+            // then
+            assert.equal(parser.test("0x407d73d8a49eeb85d32cf465507dd71d507100c1"), "000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1");
+        });
+
+        it('should parse input address', function () {
+
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "address" }
+            ];
+            
+            // when
+            var parser = abi.inputParser(d)
+            
+            // then
+            assert.equal(parser.test("0x407d73d8a49eeb85d32cf465507dd71d507100c1"), "000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1");
+
+        });
+
+        it('should parse input string', function () {
+            
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "string" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(
+                parser.test('hello'), 
+                "000000000000000000000000000000000000000000000000000000000000000568656c6c6f000000000000000000000000000000000000000000000000000000"
+                );
+            assert.equal(
+                parser.test('world'),
+                "0000000000000000000000000000000000000000000000000000000000000005776f726c64000000000000000000000000000000000000000000000000000000"
+                );
+        });
+
+        it('should use proper method name', function () {
+        
+            // given
+            var d = clone(description);
+            d[0].name = 'helloworld';
+            d[0].inputs = [
+                { type: "int" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.helloworld(1), "0000000000000000000000000000000000000000000000000000000000000001");
+
+        });
+        
+        it('should parse multiple methods', function () {
+            
+            // given
+            var d =  [{
+                name: "test",
+                inputs: [{ type: "int" }],
+                outputs: [{ type: "int" }]
+            },{
+                name: "test2",
+                inputs: [{ type: "string" }],
+                outputs: [{ type: "string" }]
+            }];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            //then
+            assert.equal(parser.test(1), "0000000000000000000000000000000000000000000000000000000000000001");
+            assert.equal(
+                parser.test2('hello'), 
+                "000000000000000000000000000000000000000000000000000000000000000568656c6c6f000000000000000000000000000000000000000000000000000000"
+                );
+
+        });
+
+        it('should parse input array of ints', function () {
+            
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: "int[]" }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(
+                parser.test([5, 6]),
+                "0000000000000000000000000000000000000000000000000000000000000002" + 
+                "0000000000000000000000000000000000000000000000000000000000000005" + 
+                "0000000000000000000000000000000000000000000000000000000000000006"
+                );
+        });
+
+        it('should parse input real', function () {
+            
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: 'real' }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test([1]),      "0000000000000000000000000000000100000000000000000000000000000000"); 
+            assert.equal(parser.test([2.125]),  "0000000000000000000000000000000220000000000000000000000000000000"); 
+            assert.equal(parser.test([8.5]),    "0000000000000000000000000000000880000000000000000000000000000000"); 
+            assert.equal(parser.test([-1]),     "ffffffffffffffffffffffffffffffff00000000000000000000000000000000"); 
+                
+        });
+        
+        it('should parse input ureal', function () {
+            
+            // given
+            var d = clone(description);
+
+            d[0].inputs = [
+                { type: 'ureal' }
+            ];
+
+            // when
+            var parser = abi.inputParser(d);
+
+            // then
+            assert.equal(parser.test([1]),      "0000000000000000000000000000000100000000000000000000000000000000"); 
+            assert.equal(parser.test([2.125]),  "0000000000000000000000000000000220000000000000000000000000000000"); 
+            assert.equal(parser.test([8.5]),    "0000000000000000000000000000000880000000000000000000000000000000"); 
+                
+        });
+
+    });

    describe('outputParser', function() {
-        it('parse ...', function() {
+        it('should parse output string', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: "string" }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+            
+            // then
+            assert.equal(
+                parser.test("0x" + 
+                    "0000000000000000000000000000000000000000000000000000000000000005" +
+                    "68656c6c6f000000000000000000000000000000000000000000000000000000")[0],
+                'hello'
+                );
+            assert.equal(
+                parser.test("0x" + 
+                    "0000000000000000000000000000000000000000000000000000000000000005" +
+                    "776f726c64000000000000000000000000000000000000000000000000000000")[0], 
+                'world'
+                );
+
+        });
+
+        it('should parse output uint', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'uint' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000000000000000000000000000000000001")[0], 1);
+            assert.equal(parser.test("0x000000000000000000000000000000000000000000000000000000000000000a")[0], 10);
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")[0].toString(10), 
+                new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).toString(10)
+                );
+            assert.equal(
+                parser.test("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0")[0].toString(10), 
+                new BigNumber("fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0", 16).toString(10)
+                );
+        });
+        
+        it('should parse output uint256', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'uint256' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000000000000000000000000000000000001")[0], 1);
+            assert.equal(parser.test("0x000000000000000000000000000000000000000000000000000000000000000a")[0], 10);
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")[0].toString(10), 
+                new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).toString(10)
+                );
+            assert.equal(
+                parser.test("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0")[0].toString(10), 
+                new BigNumber("fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0", 16).toString(10)
+                );
+        });
+
+        it('should parse output uint128', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'uint128' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000000000000000000000000000000000001")[0], 1);
+            assert.equal(parser.test("0x000000000000000000000000000000000000000000000000000000000000000a")[0], 10);
+            assert.equal(
+                parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")[0].toString(10), 
+                new BigNumber("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", 16).toString(10)
+                );
+            assert.equal(
+                parser.test("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0")[0].toString(10), 
+                new BigNumber("fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0", 16).toString(10)
+                );
+        });
+
+        it('should parse output int', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'int' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000000000000000000000000000000000001")[0], 1);
+            assert.equal(parser.test("0x000000000000000000000000000000000000000000000000000000000000000a")[0], 10);
+            assert.equal(parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")[0], -1);
+            assert.equal(parser.test("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0")[0], -16);
+        });
+        
+        it('should parse output int256', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'int256' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000000000000000000000000000000000001")[0], 1);
+            assert.equal(parser.test("0x000000000000000000000000000000000000000000000000000000000000000a")[0], 10);
+            assert.equal(parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")[0], -1);
+            assert.equal(parser.test("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0")[0], -16);
+        });
+
+        it('should parse output int128', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'int128' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000000000000000000000000000000000001")[0], 1);
+            assert.equal(parser.test("0x000000000000000000000000000000000000000000000000000000000000000a")[0], 10);
+            assert.equal(parser.test("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")[0], -1);
+            assert.equal(parser.test("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0")[0], -16);
+        });
+
+        it('should parse output hash', function() {
+            
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'hash' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(
+                parser.test("0x000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1")[0],
+                "0x000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1"
+                );
+        });
+        
+        it('should parse output hash256', function() {
+        
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'hash256' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(
+                parser.test("0x000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1")[0],
+                "0x000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1"
+                );
+        });
+
+        it('should parse output hash160', function() {
+            
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'hash160' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(
+                parser.test("0x000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1")[0],
+                "0x000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1"
+                );
+            // TODO shouldnt' the expected hash be shorter?
+        });
+
+        it('should parse output address', function() {
+            
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'address' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(
+                parser.test("0x000000000000000000000000407d73d8a49eeb85d32cf465507dd71d507100c1")[0],
+                "0x407d73d8a49eeb85d32cf465507dd71d507100c1"
+                );
+        });
+
+        it('should parse output bool', function() {
+            
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: 'bool' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000000000000000000000000000000000001")[0], true);
+            assert.equal(parser.test("0x0000000000000000000000000000000000000000000000000000000000000000")[0], false);
+            
+
+        });
+
+        it('should parse output real', function() {
+            
+            // given
+            var d = clone(description); 
+
+            d[0].outputs = [
+                { type: 'real' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000100000000000000000000000000000000")[0], 1);
+            assert.equal(parser.test("0x0000000000000000000000000000000220000000000000000000000000000000")[0], 2.125); 
+            assert.equal(parser.test("0x0000000000000000000000000000000880000000000000000000000000000000")[0], 8.5); 
+            assert.equal(parser.test("0xffffffffffffffffffffffffffffffff00000000000000000000000000000000")[0], -1); 
+            
+        });
+
+        it('should parse output ureal', function() {
+
+            // given
+            var d = clone(description); 
+
+            d[0].outputs = [
+                { type: 'ureal' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x0000000000000000000000000000000100000000000000000000000000000000")[0], 1);
+            assert.equal(parser.test("0x0000000000000000000000000000000220000000000000000000000000000000")[0], 2.125); 
+            assert.equal(parser.test("0x0000000000000000000000000000000880000000000000000000000000000000")[0], 8.5); 

        });
+        
+
+        it('should parse multiple output strings', function() {
+
+            // given
+            var d = clone(description);
+
+            d[0].outputs = [
+                { type: "string" },
+                { type: "string" }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(
+                parser.test("0x" +
+                    "0000000000000000000000000000000000000000000000000000000000000005" +
+                    "0000000000000000000000000000000000000000000000000000000000000005" +
+                    "68656c6c6f000000000000000000000000000000000000000000000000000000" + 
+                    "776f726c64000000000000000000000000000000000000000000000000000000")[0],
+                'hello'
+                );
+            assert.equal(
+                parser.test("0x" +
+                    "0000000000000000000000000000000000000000000000000000000000000005" +
+                    "0000000000000000000000000000000000000000000000000000000000000005" +
+                    "68656c6c6f000000000000000000000000000000000000000000000000000000" + 
+                    "776f726c64000000000000000000000000000000000000000000000000000000")[1],
+                'world'
+                );
+
+        });
+        
+        it('should use proper method name', function () {
+        
+            // given
+            var d = clone(description);
+            d[0].name = 'helloworld';
+            d[0].outputs = [
+                { type: "int" }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.helloworld("0x0000000000000000000000000000000000000000000000000000000000000001")[0], 1);
+
+        });
+
+
+        it('should parse multiple methods', function () {
+            
+            // given
+            var d =  [{
+                name: "test",
+                inputs: [{ type: "int" }],
+                outputs: [{ type: "int" }]
+            },{
+                name: "test2",
+                inputs: [{ type: "string" }],
+                outputs: [{ type: "string" }]
+            }];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            //then
+            assert.equal(parser.test("0000000000000000000000000000000000000000000000000000000000000001")[0], 1);
+            assert.equal(parser.test2("0x" + 
+                    "0000000000000000000000000000000000000000000000000000000000000005" +
+                    "68656c6c6f000000000000000000000000000000000000000000000000000000")[0],
+                "hello"
+                );
+
+        });
+
+        it('should parse output array', function () {
+            
+            // given
+            var d = clone(description);
+            d[0].outputs = [
+                { type: 'int[]' }
+            ];
+
+            // when
+            var parser = abi.outputParser(d);
+
+            // then
+            assert.equal(parser.test("0x" +
+                    "0000000000000000000000000000000000000000000000000000000000000002" + 
+                    "0000000000000000000000000000000000000000000000000000000000000005" + 
+                    "0000000000000000000000000000000000000000000000000000000000000006")[0][0],
+                5
+                );
+            assert.equal(parser.test("0x" +
+                    "0000000000000000000000000000000000000000000000000000000000000002" + 
+                    "0000000000000000000000000000000000000000000000000000000000000005" + 
+                    "0000000000000000000000000000000000000000000000000000000000000006")[0][1],
+                6
+                );
+
+        });
+
    });
 });

--- a/libjsqrc/ethereumjs/test/db.methods.js
+++ b/libjsqrc/ethereumjs/test/db.methods.js
@ -7,12 +7,10 @@ web3.setProvider(new web3.providers.WebSocketProvider('http://localhost:8080'));

 describe('web3', function() {
    describe('db', function() {
-        it('should have all methods implemented', function() {
        u.methodExists(web3.db, 'put');
        u.methodExists(web3.db, 'get');
        u.methodExists(web3.db, 'putString');
        u.methodExists(web3.db, 'getString');
    });
 });
-});

--- a/libjsqrc/ethereumjs/test/eth.methods.js
+++ b/libjsqrc/ethereumjs/test/eth.methods.js
@ -7,7 +7,6 @@ web3.setProvider(new web3.providers.WebSocketProvider('http://localhost:8080'));

 describe('web3', function() {
    describe('eth', function() {
-        it('should have all methods implemented', function() {
        u.methodExists(web3.eth, 'balanceAt');
        u.methodExists(web3.eth, 'stateAt');
        u.methodExists(web3.eth, 'storageAt');
@ -23,9 +22,7 @@ describe('web3', function() {
        u.methodExists(web3.eth, 'solidity');
        u.methodExists(web3.eth, 'serpent');
        u.methodExists(web3.eth, 'logs');
-        });

-        it('should have all properties implemented', function () {
        u.propertyExists(web3.eth, 'coinbase');
        u.propertyExists(web3.eth, 'listening');
        u.propertyExists(web3.eth, 'mining');
@ -37,6 +34,5 @@ describe('web3', function() {
        u.propertyExists(web3.eth, 'number');
    });
 });
-});


--- a/libjsqrc/ethereumjs/test/mocha.opts
+++ b/libjsqrc/ethereumjs/test/mocha.opts
@ -1,2 +1,2 @@
--reporter Spec
+--reporter spec 

--- a/libjsqrc/ethereumjs/test/shh.methods.js
+++ b/libjsqrc/ethereumjs/test/shh.methods.js
@ -7,7 +7,6 @@ web3.setProvider(new web3.providers.WebSocketProvider('http://localhost:8080'));

 describe('web3', function() {
    describe('shh', function() {
-        it('should have all methods implemented', function() {
        u.methodExists(web3.shh, 'post');
        u.methodExists(web3.shh, 'newIdentity');
        u.methodExists(web3.shh, 'haveIdentity');
@ -15,5 +14,4 @@ describe('web3', function() {
        u.methodExists(web3.shh, 'addToGroup');
    });
 });
-});

--- a/libjsqrc/ethereumjs/test/utils.js
+++ b/libjsqrc/ethereumjs/test/utils.js
@ -1,11 +1,15 @@
 var assert = require('assert');

 var methodExists = function (object, method) {
+    it('should have method ' + method + ' implemented', function() {
        assert.equal('function', typeof object[method], 'method ' + method + ' is not implemented');
+    });
 };

 var propertyExists = function (object, property) {
+    it('should have property ' + property + ' implemented', function() {
        assert.equal('object', typeof object[property], 'property ' + property + ' is not implemented');
+    });
 };

 module.exports = {
--- a/libjsqrc/ethereumjs/test/web3.methods.js
+++ b/libjsqrc/ethereumjs/test/web3.methods.js
@ -6,7 +6,6 @@ var u = require('./utils.js');
 web3.setProvider(new web3.providers.WebSocketProvider('http://localhost:8080')); // TODO: create some mock provider

 describe('web3', function() {
-    it('should have all methods implemented', function() {
    u.methodExists(web3, 'sha3');
    u.methodExists(web3, 'toAscii');
    u.methodExists(web3, 'fromAscii');
@ -14,5 +13,4 @@ describe('web3', function() {
    u.methodExists(web3, 'fromFixed');
    u.methodExists(web3, 'offset');
 });
-});

--- a/libjsqrc/js.qrc
+++ b/libjsqrc/js.qrc
@ -1,6 +1,7 @@
 <RCC>
    <qresource prefix="/js">
        <file>es6-promise-2.0.0.js</file>
+        <file>bignumber.min.js</file>
        <file>setup.js</file>
        <file alias="webthree.js">ethereumjs/dist/ethereum.js</file>
    </qresource>
--- a/libqwebthree/QWebThree.h
+++ b/libqwebthree/QWebThree.h
@ -85,6 +85,7 @@ private:
 	_frame->addToJavaScriptWindowObject("_web3", qweb, QWebFrame::ScriptOwnership); \
 	_frame->addToJavaScriptWindowObject("env", _env, QWebFrame::QtOwnership); \
 	_frame->evaluateJavaScript(contentsOfQResource(":/js/es6-promise-2.0.0.js")); \
+	_frame->evaluateJavaScript(contentsOfQResource(":/js/bignumber.min.js")); \
 	_frame->evaluateJavaScript(contentsOfQResource(":/js/webthree.js")); \
 	_frame->evaluateJavaScript(contentsOfQResource(":/js/setup.js")); \
 }