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Squashed 'libjsqrc/ethereumjs/' changes from d516691..f1a5cf9 

f1a5cf9 Merge branch 'develop' into cpp
a5909d8 parsing events output
1860b3d gulp
03faec9 event outputParser && tests
4bb5ba7 reverted ethereum.js
9d9c23e common cleanup
1a6b7de removed splitter.qml
011fdd9 event_inc example
0994efa Better HTML template in Mix. Use happened in JS. Debugging QML enabled.

git-subtree-dir: libjsqrc/ethereumjs
git-subtree-split: f1a5cf9128170b85428259c8b0ecfaed5b3e17d1
cl-refactor
Marek Kotewicz 10 years ago
parent
345b20f2b2
commit
699bed10c0
13 changed files with 561 additions and 247 deletions
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  1. 199
      dist/ethereum.js
  2. 14
      dist/ethereum.js.map
  3. 2
      dist/ethereum.min.js
  4. 66
      example/event_inc.html
  5. 23
      lib/const.js
  6. 11
      lib/contract.js
  7. 72
      lib/event.js
  8. 8
      lib/filter.js
  9. 31
      lib/utils.js
  10. 52
      lib/web3.js
  11. 125
      test/event.inputParser.js
  12. 124
      test/event.js
  13. 81
      test/event.outputParser.js

199
dist/ethereum.js
View File

@ -238,9 +238,32 @@ if ("build" !== 'build') {/*
var BigNumber = require('bignumber.js'); // jshint ignore:line
*/}
var ETH_UNITS = [
'wei',
'Kwei',
'Mwei',
'Gwei',
'szabo',
'finney',
'ether',
'grand',
'Mether',
'Gether',
'Tether',
'Pether',
'Eether',
'Zether',
'Yether',
'Nether',
'Dether',
'Vether',
'Uether'
];
module.exports = {
ETH_PADDING: 32,
ETH_SIGNATURE_LENGTH: 4,
ETH_UNITS: ETH_UNITS,
ETH_BIGNUMBER_ROUNDING_MODE: { ROUNDING_MODE: BigNumber.ROUND_DOWN }
};
@ -368,6 +391,11 @@ var addFunctionsToContract = function (contract, desc, address) {
var addEventRelatedPropertiesToContract = function (contract, desc, address) {
contract.address = address;
contract._onWatchEventResult = function (data) {
var matchingEvent = event.getMatchingEvent(utils.filterEvents(desc));
var parser = eventImpl.outputParser(matchingEvent);
return parser(data);
};
Object.defineProperty(contract, 'topic', {
get: function() {
@ -386,8 +414,12 @@ var addEventsToContract = function (contract, desc, address) {
var impl = function () {
var params = Array.prototype.slice.call(arguments);
var signature = abi.eventSignatureFromAscii(e.name);
var event = eventImpl(address, signature, e);
var event = eventImpl.inputParser(address, signature, e);
var o = event.apply(null, params);
o._onWatchEventResult = function (data) {
var parser = eventImpl.outputParser(e);
return parser(data);
};
return web3.eth.watch(o);
};
@ -481,6 +513,16 @@ module.exports = contract;
var abi = require('./abi');
var utils = require('./utils');
/// filter inputs array && returns only indexed (or not) inputs
/// @param inputs array
/// @param bool if result should be an array of indexed params on not
/// @returns array of (not?) indexed params
var filterInputs = function (inputs, indexed) {
return inputs.filter(function (current) {
return current.indexed === indexed;
});
};
var inputWithName = function (inputs, name) {
var index = utils.findIndex(inputs, function (input) {
return input.name === name;
@ -496,7 +538,7 @@ var inputWithName = function (inputs, name) {
var indexedParamsToTopics = function (event, indexed) {
// sort keys?
return Object.keys(indexed).map(function (key) {
var inputs = [inputWithName(event.inputs, key)];
var inputs = [inputWithName(filterInputs(event.inputs, true), key)];
var value = indexed[key];
if (value instanceof Array) {
@ -508,7 +550,7 @@ var indexedParamsToTopics = function (event, indexed) {
});
};
var implementationOfEvent = function (address, signature, event) {
var inputParser = function (address, signature, event) {
// valid options are 'earliest', 'latest', 'offset' and 'max', as defined for 'eth.watch'
return function (indexed, options) {
@ -523,7 +565,63 @@ var implementationOfEvent = function (address, signature, event) {
};
};
module.exports = implementationOfEvent;
var getArgumentsObject = function (inputs, indexed, notIndexed) {
var indexedCopy = indexed.slice();
var notIndexedCopy = notIndexed.slice();
return inputs.reduce(function (acc, current) {
var value;
if (current.indexed)
value = indexed.splice(0, 1)[0];
else
value = notIndexed.splice(0, 1)[0];
acc[current.name] = value;
return acc;
}, {});
};
var outputParser = function (event) {
return function (output) {
var result = {
event: utils.extractDisplayName(event.name),
number: output.number,
args: {}
};
if (!output.topic) {
return result;
}
var indexedOutputs = filterInputs(event.inputs, true);
var indexedData = "0x" + output.topic.slice(1, output.topic.length).map(function (topic) { return topic.slice(2); }).join("");
var indexedRes = abi.formatOutput(indexedOutputs, indexedData);
var notIndexedOutputs = filterInputs(event.inputs, false);
var notIndexedRes = abi.formatOutput(notIndexedOutputs, output.data);
result.args = getArgumentsObject(event.inputs, indexedRes, notIndexedRes);
return result;
};
};
var getMatchingEvent = function (events, payload) {
for (var i = 0; i < events.length; i++) {
var signature = abi.eventSignatureFromAscii(events[i].name);
if (signature === payload.topic[0]) {
return events[i];
}
}
return undefined;
};
module.exports = {
inputParser: inputParser,
outputParser: outputParser,
getMatchingEvent: getMatchingEvent
};
},{"./abi":1,"./utils":11}],5:[function(require,module,exports){
@ -565,6 +663,8 @@ var Filter = function(options, impl) {
if (options.topics) {
console.warn('"topics" is deprecated, use "topic" instead');
}
this._onWatchResult = options._onWatchEventResult;
// evaluate lazy properties
options = {
@ -590,6 +690,9 @@ var Filter = function(options, impl) {
Filter.prototype.arrived = function(callback) {
this.changed(callback);
};
Filter.prototype.happened = function(callback) {
this.changed(callback);
};
/// gets called when there is new eth/shh message
Filter.prototype.changed = function(callback) {
@ -600,7 +703,8 @@ Filter.prototype.changed = function(callback) {
Filter.prototype.trigger = function(messages) {
for (var i = 0; i < this.callbacks.length; i++) {
for (var j = 0; j < messages.length; j++) {
this.callbacks[i].call(this, messages[j]);
var message = this._onWatchResult ? this._onWatchResult(messages[j]) : messages[j];
this.callbacks[i].call(this, message);
}
}
};
@ -1101,6 +1205,8 @@ module.exports = {
* @date 2015
*/
var c = require('./const');
/// Finds first index of array element matching pattern
/// @param array
/// @param callback pattern
@ -1182,6 +1288,32 @@ var filterEvents = function (json) {
});
};
/// used to transform value/string to eth string
/// TODO: use BigNumber.js to parse int
/// TODO: add tests for it!
var toEth = function (str) {
var val = typeof str === "string" ? str.indexOf('0x') === 0 ? parseInt(str.substr(2), 16) : parseInt(str) : str;
var unit = 0;
var units = c.ETH_UNITS;
while (val > 3000 && unit < units.length - 1)
{
val /= 1000;
unit++;
}
var s = val.toString().length < val.toFixed(2).length ? val.toString() : val.toFixed(2);
var replaceFunction = function($0, $1, $2) {
return $1 + ',' + $2;
};
while (true) {
var o = s;
s = s.replace(/(\d)(\d\d\d[\.\,])/, replaceFunction);
if (o === s)
break;
}
return s + ' ' + units[unit];
};
module.exports = {
findIndex: findIndex,
toAscii: toAscii,
@ -1189,11 +1321,12 @@ module.exports = {
extractDisplayName: extractDisplayName,
extractTypeName: extractTypeName,
filterFunctions: filterFunctions,
filterEvents: filterEvents
filterEvents: filterEvents,
toEth: toEth
};
},{}],12:[function(require,module,exports){
},{"./const":2}],12:[function(require,module,exports){
/*
This file is part of ethereum.js.
@ -1225,28 +1358,6 @@ if ("build" !== 'build') {/*
var utils = require('./utils');
var ETH_UNITS = [
'wei',
'Kwei',
'Mwei',
'Gwei',
'szabo',
'finney',
'ether',
'grand',
'Mether',
'Gether',
'Tether',
'Pether',
'Eether',
'Zether',
'Yether',
'Nether',
'Dether',
'Vether',
'Uether'
];
/// @returns an array of objects describing web3 api methods
var web3Methods = function () {
return [
@ -1409,29 +1520,7 @@ var web3 = {
},
/// used to transform value/string to eth string
/// TODO: use BigNumber.js to parse int
toEth: function(str) {
var val = typeof str === "string" ? str.indexOf('0x') === 0 ? parseInt(str.substr(2), 16) : parseInt(str) : str;
var unit = 0;
var units = ETH_UNITS;
while (val > 3000 && unit < units.length - 1)
{
val /= 1000;
unit++;
}
var s = val.toString().length < val.toFixed(2).length ? val.toString() : val.toFixed(2);
var replaceFunction = function($0, $1, $2) {
return $1 + ',' + $2;
};
while (true) {
var o = s;
s = s.replace(/(\d)(\d\d\d[\.\,])/, replaceFunction);
if (o === s)
break;
}
return s + ' ' + units[unit];
},
toEth: utils.toEth,
/// eth object prototype
eth: {
@ -1467,11 +1556,6 @@ var web3 = {
return new web3.filter(filter, shhWatch);
}
},
/// @returns true if provider is installed
haveProvider: function() {
return !!web3.provider.provider;
}
};
/// setups all api methods
@ -1494,7 +1578,6 @@ var shhWatch = {
setupMethods(shhWatch, shhWatchMethods());
web3.setProvider = function(provider) {
//provider.onmessage = messageHandler; // there will be no async calls, to remove
web3.provider.set(provider);
};

14
dist/ethereum.js.map
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File diff suppressed because one or more lines are too long

2
dist/ethereum.min.js
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File diff suppressed because one or more lines are too long

66
example/event_inc.html
View File

@ -0,0 +1,66 @@
<!doctype>
<html>
<head>
<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">
var web3 = require('web3');
web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080'));
var source = "" +
"contract Contract { " +
" event Incremented(bool indexed odd, uint x); " +
" function Contract() { " +
" x = 69; " +
" } " +
" function inc() { " +
" ++x; " +
" Incremented(x % 2 == 1, x); " +
" } " +
" uint x; " +
"}";
var desc = [{
"type":"event",
"name":"Incremented",
"inputs": [{"name":"odd","type":"bool","indexed":true},{"name":"x","type":"uint","indexed":false}],
}, {
"type":"function",
"name":"inc",
"inputs": [],
"outputs": []
}];
var address;
var contract;
var update = function (x) {
document.getElementById('result').innerText = JSON.stringify(x);
};
var createContract = function () {
address = web3.eth.transact({code: web3.eth.solidity(source)});
contract = web3.eth.contract(address, desc);
contract.Incremented({odd: true}).changed(update);
};
var callContract = function () {
contract.call().inc();
};
</script>
</head>
<body>
<div>
<button type="button" onClick="createContract();">create contract</button>
</div>
<div>
<button type="button" onClick="callContract();">test1</button>
</div>
<div id="result">
</div>
</body>
</html>

23
lib/const.js
View File

@ -25,9 +25,32 @@ if (process.env.NODE_ENV !== 'build') {
var BigNumber = require('bignumber.js'); // jshint ignore:line
}
var ETH_UNITS = [
'wei',
'Kwei',
'Mwei',
'Gwei',
'szabo',
'finney',
'ether',
'grand',
'Mether',
'Gether',
'Tether',
'Pether',
'Eether',
'Zether',
'Yether',
'Nether',
'Dether',
'Vether',
'Uether'
];
module.exports = {
ETH_PADDING: 32,
ETH_SIGNATURE_LENGTH: 4,
ETH_UNITS: ETH_UNITS,
ETH_BIGNUMBER_ROUNDING_MODE: { ROUNDING_MODE: BigNumber.ROUND_DOWN }
};

11
lib/contract.js
View File

@ -120,6 +120,11 @@ var addFunctionsToContract = function (contract, desc, address) {
var addEventRelatedPropertiesToContract = function (contract, desc, address) {
contract.address = address;
contract._onWatchEventResult = function (data) {
var matchingEvent = event.getMatchingEvent(utils.filterEvents(desc));
var parser = eventImpl.outputParser(matchingEvent);
return parser(data);
};
Object.defineProperty(contract, 'topic', {
get: function() {
@ -138,8 +143,12 @@ var addEventsToContract = function (contract, desc, address) {
var impl = function () {
var params = Array.prototype.slice.call(arguments);
var signature = abi.eventSignatureFromAscii(e.name);
var event = eventImpl(address, signature, e);
var event = eventImpl.inputParser(address, signature, e);
var o = event.apply(null, params);
o._onWatchEventResult = function (data) {
var parser = eventImpl.outputParser(e);
return parser(data);
};
return web3.eth.watch(o);
};

72
lib/event.js
View File

@ -23,6 +23,16 @@
var abi = require('./abi');
var utils = require('./utils');
/// filter inputs array && returns only indexed (or not) inputs
/// @param inputs array
/// @param bool if result should be an array of indexed params on not
/// @returns array of (not?) indexed params
var filterInputs = function (inputs, indexed) {
return inputs.filter(function (current) {
return current.indexed === indexed;
});
};
var inputWithName = function (inputs, name) {
var index = utils.findIndex(inputs, function (input) {
return input.name === name;
@ -38,7 +48,7 @@ var inputWithName = function (inputs, name) {
var indexedParamsToTopics = function (event, indexed) {
// sort keys?
return Object.keys(indexed).map(function (key) {
var inputs = [inputWithName(event.inputs, key)];
var inputs = [inputWithName(filterInputs(event.inputs, true), key)];
var value = indexed[key];
if (value instanceof Array) {
@ -50,7 +60,7 @@ var indexedParamsToTopics = function (event, indexed) {
});
};
var implementationOfEvent = function (address, signature, event) {
var inputParser = function (address, signature, event) {
// valid options are 'earliest', 'latest', 'offset' and 'max', as defined for 'eth.watch'
return function (indexed, options) {
@ -65,5 +75,61 @@ var implementationOfEvent = function (address, signature, event) {
};
};
module.exports = implementationOfEvent;
var getArgumentsObject = function (inputs, indexed, notIndexed) {
var indexedCopy = indexed.slice();
var notIndexedCopy = notIndexed.slice();
return inputs.reduce(function (acc, current) {
var value;
if (current.indexed)
value = indexed.splice(0, 1)[0];
else
value = notIndexed.splice(0, 1)[0];
acc[current.name] = value;
return acc;
}, {});
};
var outputParser = function (event) {
return function (output) {
var result = {
event: utils.extractDisplayName(event.name),
number: output.number,
args: {}
};
if (!output.topic) {
return result;
}
var indexedOutputs = filterInputs(event.inputs, true);
var indexedData = "0x" + output.topic.slice(1, output.topic.length).map(function (topic) { return topic.slice(2); }).join("");
var indexedRes = abi.formatOutput(indexedOutputs, indexedData);
var notIndexedOutputs = filterInputs(event.inputs, false);
var notIndexedRes = abi.formatOutput(notIndexedOutputs, output.data);
result.args = getArgumentsObject(event.inputs, indexedRes, notIndexedRes);
return result;
};
};
var getMatchingEvent = function (events, payload) {
for (var i = 0; i < events.length; i++) {
var signature = abi.eventSignatureFromAscii(events[i].name);
if (signature === payload.topic[0]) {
return events[i];
}
}
return undefined;
};
module.exports = {
inputParser: inputParser,
outputParser: outputParser,
getMatchingEvent: getMatchingEvent
};

8
lib/filter.js
View File

@ -36,6 +36,8 @@ var Filter = function(options, impl) {
if (options.topics) {
console.warn('"topics" is deprecated, use "topic" instead');
}
this._onWatchResult = options._onWatchEventResult;
// evaluate lazy properties
options = {
@ -61,6 +63,9 @@ var Filter = function(options, impl) {
Filter.prototype.arrived = function(callback) {
this.changed(callback);
};
Filter.prototype.happened = function(callback) {
this.changed(callback);
};
/// gets called when there is new eth/shh message
Filter.prototype.changed = function(callback) {
@ -71,7 +76,8 @@ Filter.prototype.changed = function(callback) {
Filter.prototype.trigger = function(messages) {
for (var i = 0; i < this.callbacks.length; i++) {
for (var j = 0; j < messages.length; j++) {
this.callbacks[i].call(this, messages[j]);
var message = this._onWatchResult ? this._onWatchResult(messages[j]) : messages[j];
this.callbacks[i].call(this, message);
}
}
};

31
lib/utils.js
View File

@ -20,6 +20,8 @@
* @date 2015
*/
var c = require('./const');
/// Finds first index of array element matching pattern
/// @param array
/// @param callback pattern
@ -101,6 +103,32 @@ var filterEvents = function (json) {
});
};
/// used to transform value/string to eth string
/// TODO: use BigNumber.js to parse int
/// TODO: add tests for it!
var toEth = function (str) {
var val = typeof str === "string" ? str.indexOf('0x') === 0 ? parseInt(str.substr(2), 16) : parseInt(str) : str;
var unit = 0;
var units = c.ETH_UNITS;
while (val > 3000 && unit < units.length - 1)
{
val /= 1000;
unit++;
}
var s = val.toString().length < val.toFixed(2).length ? val.toString() : val.toFixed(2);
var replaceFunction = function($0, $1, $2) {
return $1 + ',' + $2;
};
while (true) {
var o = s;
s = s.replace(/(\d)(\d\d\d[\.\,])/, replaceFunction);
if (o === s)
break;
}
return s + ' ' + units[unit];
};
module.exports = {
findIndex: findIndex,
toAscii: toAscii,
@ -108,6 +136,7 @@ module.exports = {
extractDisplayName: extractDisplayName,
extractTypeName: extractTypeName,
filterFunctions: filterFunctions,
filterEvents: filterEvents
filterEvents: filterEvents,
toEth: toEth
};

52
lib/web3.js
View File

@ -29,28 +29,6 @@ if (process.env.NODE_ENV !== 'build') {
var utils = require('./utils');
var ETH_UNITS = [
'wei',
'Kwei',
'Mwei',
'Gwei',
'szabo',
'finney',
'ether',
'grand',
'Mether',
'Gether',
'Tether',
'Pether',
'Eether',
'Zether',
'Yether',
'Nether',
'Dether',
'Vether',
'Uether'
];
/// @returns an array of objects describing web3 api methods
var web3Methods = function () {
return [
@ -213,29 +191,7 @@ var web3 = {
},
/// used to transform value/string to eth string
/// TODO: use BigNumber.js to parse int
toEth: function(str) {
var val = typeof str === "string" ? str.indexOf('0x') === 0 ? parseInt(str.substr(2), 16) : parseInt(str) : str;
var unit = 0;
var units = ETH_UNITS;
while (val > 3000 && unit < units.length - 1)
{
val /= 1000;
unit++;
}
var s = val.toString().length < val.toFixed(2).length ? val.toString() : val.toFixed(2);
var replaceFunction = function($0, $1, $2) {
return $1 + ',' + $2;
};
while (true) {
var o = s;
s = s.replace(/(\d)(\d\d\d[\.\,])/, replaceFunction);
if (o === s)
break;
}
return s + ' ' + units[unit];
},
toEth: utils.toEth,
/// eth object prototype
eth: {
@ -271,11 +227,6 @@ var web3 = {
return new web3.filter(filter, shhWatch);
}
},
/// @returns true if provider is installed
haveProvider: function() {
return !!web3.provider.provider;
}
};
/// setups all api methods
@ -298,7 +249,6 @@ var shhWatch = {
setupMethods(shhWatch, shhWatchMethods());
web3.setProvider = function(provider) {
//provider.onmessage = messageHandler; // there will be no async calls, to remove
web3.provider.set(provider);
};

125
test/event.inputParser.js
View File

@ -0,0 +1,125 @@
var assert = require('assert');
var event = require('../lib/event.js');
var f = require('../lib/formatters.js');
describe('event', function () {
describe('inputParser', function () {
it('should create basic filter input object', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event.inputParser(address, signature, e);
var result = impl();
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 1);
assert.equal(result.topic[0], signature);
});
it('should create filter input object with options', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var options = {
earliest: 1,
latest: 2,
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event.inputParser(address, signature, e);
var result = impl({}, options);
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 1);
assert.equal(result.topic[0], signature);
assert.equal(result.earliest, options.earliest);
assert.equal(result.latest, options.latest);
assert.equal(result.offset, options.offset);
assert.equal(result.max, options.max);
});
it('should create filter input object with indexed params', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var options = {
earliest: 1,
latest: 2,
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event.inputParser(address, signature, e);
var result = impl({a: 4}, options);
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 2);
assert.equal(result.topic[0], signature);
assert.equal(result.topic[1], f.formatInputInt(4));
assert.equal(result.earliest, options.earliest);
assert.equal(result.latest, options.latest);
assert.equal(result.offset, options.offset);
assert.equal(result.max, options.max);
});
it('should create filter input object with an array of indexed params', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var options = {
earliest: 1,
latest: 2,
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event.inputParser(address, signature, e);
var result = impl({a: [4, 69]}, options);
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 2);
assert.equal(result.topic[0], signature);
assert.equal(result.topic[1][0], f.formatInputInt(4));
assert.equal(result.topic[1][1], f.formatInputInt(69));
assert.equal(result.earliest, options.earliest);
assert.equal(result.latest, options.latest);
assert.equal(result.offset, options.offset);
assert.equal(result.max, options.max);
});
});
});

124
test/event.js
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@ -1,124 +0,0 @@
var assert = require('assert');
var event = require('../lib/event.js');
var f = require('../lib/formatters.js');
describe('event', function () {
it('should create basic filter input object', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event(address, signature, e);
var result = impl();
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 1);
assert.equal(result.topic[0], signature);
});
it('should create filter input object with options', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var options = {
earliest: 1,
latest: 2,
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event(address, signature, e);
var result = impl({}, options);
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 1);
assert.equal(result.topic[0], signature);
assert.equal(result.earliest, options.earliest);
assert.equal(result.latest, options.latest);
assert.equal(result.offset, options.offset);
assert.equal(result.max, options.max);
});
it('should create filter input object with indexed params', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var options = {
earliest: 1,
latest: 2,
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event(address, signature, e);
var result = impl({a: 4}, options);
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 2);
assert.equal(result.topic[0], signature);
assert.equal(result.topic[1], f.formatInputInt(4));
assert.equal(result.earliest, options.earliest);
assert.equal(result.latest, options.latest);
assert.equal(result.offset, options.offset);
assert.equal(result.max, options.max);
});
it('should create filter input object with an array of indexed params', function () {
// given
var address = '0x012345';
var signature = '0x987654';
var options = {
earliest: 1,
latest: 2,
offset: 3,
max: 4
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"uint256","indexed":true},{"name":"b","type":"hash256","indexed":false}]
};
// when
var impl = event(address, signature, e);
var result = impl({a: [4, 69]}, options);
// then
assert.equal(result.address, address);
assert.equal(result.topic.length, 2);
assert.equal(result.topic[0], signature);
assert.equal(result.topic[1][0], f.formatInputInt(4));
assert.equal(result.topic[1][1], f.formatInputInt(69));
assert.equal(result.earliest, options.earliest);
assert.equal(result.latest, options.latest);
assert.equal(result.offset, options.offset);
assert.equal(result.max, options.max);
});
});

81
test/event.outputParser.js
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var assert = require('assert');
var event = require('../lib/event.js');
describe('event', function () {
describe('outputParser', function () {
it('should parse basic event output object', function () {
// given
var output = {
"address":"0x78dfc5983baecf65f73e3de3a96cee24e6b7981e",
"data":"0x000000000000000000000000000000000000000000000000000000000000004b",
"number":2,
"topic":[
"0x6e61ef44ac2747ff8b84d353a908eb8bd5c3fb118334d57698c5cfc7041196ad",
"0x0000000000000000000000000000000000000000000000000000000000000001"
]
};
var e = {
name: 'Event',
inputs: [{"name":"a","type":"bool","indexed":true},{"name":"b","type":"uint256","indexed":false}]
};
// when
var impl = event.outputParser(e);
var result = impl(output);
// then
assert.equal(result.event, 'Event');
assert.equal(result.number, 2);
assert.equal(Object.keys(result.args).length, 2);
assert.equal(result.args.a, true);
assert.equal(result.args.b, 75);
});
it('should parse event output object arguments in correct order', function () {
// given
var output = {
"address":"0x78dfc5983baecf65f73e3de3a96cee24e6b7981e",
"data": "0x" +
"000000000000000000000000000000000000000000000000000000000000004b" +
"000000000000000000000000000000000000000000000000000000000000004c" +
"0000000000000000000000000000000000000000000000000000000000000001",
"number":3,
"topic":[
"0x6e61ef44ac2747ff8b84d353a908eb8bd5c3fb118334d57698c5cfc7041196ad",
"0x0000000000000000000000000000000000000000000000000000000000000001",
"0x0000000000000000000000000000000000000000000000000000000000000005"
]
};
var e = {
name: 'Event2',
inputs: [
{"name":"a","type":"bool","indexed":true},
{"name":"b","type":"int","indexed":false},
{"name":"c","type":"int","indexed":false},
{"name":"d","type":"int","indexed":true},
{"name":"e","type":"bool","indexed":false}
]
};
// when
var impl = event.outputParser(e);
var result = impl(output);
// then
assert.equal(result.event, 'Event2');
assert.equal(result.number, 3);
assert.equal(Object.keys(result.args).length, 5);
assert.equal(result.args.a, true);
assert.equal(result.args.b, 75);
assert.equal(result.args.c, 76);
assert.equal(result.args.d, 5);
assert.equal(result.args.e, true);
});
});
});
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