challenge-algorithms-v2.0-D.../node_modules/collect-v8-coverage/index.js

38 lines
801 B
JavaScript

'use strict';
const { Session } = require('inspector');
const { promisify } = require('util');
class CoverageInstrumenter {
constructor() {
this.session = new Session();
this.postSession = promisify(this.session.post.bind(this.session));
}
async startInstrumenting() {
this.session.connect();
await this.postSession('Profiler.enable');
await this.postSession('Profiler.startPreciseCoverage', {
callCount: true,
detailed: true,
});
}
async stopInstrumenting() {
const {result} = await this.postSession(
'Profiler.takePreciseCoverage',
);
await this.postSession('Profiler.stopPreciseCoverage');
await this.postSession('Profiler.disable');
return result;
}
}
module.exports.CoverageInstrumenter = CoverageInstrumenter;