embark-area-51/lib/modules/coverage/index.js

68 lines
1.8 KiB
JavaScript

/*global web3*/
const process = require('process');
const fs = require('../../core/fs');
const ContractSources = require('./contract_sources');
// Set up the web3 extension
web3.extend({
property: 'debug',
methods: [{name: 'traceTransaction', call: 'debug_traceTransaction', params: 2}]
});
class CodeCoverage {
constructor(embark, _options) {
this.events = embark.events;
this.logger = embark.logger;
embark.events.on('contracts:compile:solc', this.compileSolc.bind(this));
embark.events.on('contracts:compiled:solc', this.compiledSolc.bind(this));
embark.events.on('contracts:run:solc', this.runSolc.bind(this));
embark.events.on('block:header', this.runSolc.bind(this));
this.seenTransactions = {};
this.coverageReport = {};
this.contractSources = new ContractSources([]);
var self = this;
process.on('exit', (_code) => {
const coverageReportPath = fs.dappPath('.embark', 'coverage.json');
fs.writeFileSync(coverageReportPath, JSON.stringify(self.coverageReport));
});
}
compileSolc(input) {
Object.keys(input.sources).forEach((file) => {
this.contractSources.addFile(file, input.sources[file].content);
});
}
compiledSolc(output) {
this.contractSources.parseSolcOutput(output);
}
async runSolc(receipt) {
let block = await web3.eth.getBlock(receipt.number);
if(block.transactions.length == 0) return;
let requests = [];
for(let i in block.transactions) {
var txHash = block.transactions[i];
if(this.seenTransactions[txHash]) return;
this.seenTransactions[txHash] = true;
requests.push(web3.debug.traceTransaction(txHash, {}));
}
let traces = await Promise.all(requests);
for(let i in traces) {
this.coverageReport = this.contractSources.generateCodeCoverage(traces[i]);
}
}
}
module.exports = CodeCoverage;