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