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index.js
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Created: Fri, Dec 13, 14:10

index.js
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	'use strict';
	/*
	Copyright 2012-2015, Yahoo Inc.
	Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.
	*/
	const path = require('path');
	const { escape } = require('html-escaper');
	const { ReportBase } = require('istanbul-lib-report');

	class CoberturaReport extends ReportBase {
	constructor(opts) {
	super();

	opts = opts \|\| {};

	this.cw = null;
	this.xml = null;
	this.timestamp = opts.timestamp \|\| Date.now().toString();
	this.projectRoot = opts.projectRoot \|\| process.cwd();
	this.file = opts.file \|\| 'cobertura-coverage.xml';
	}

	onStart(root, context) {
	this.cw = context.writer.writeFile(this.file);
	this.xml = context.getXMLWriter(this.cw);
	this.writeRootStats(root);
	}

	onEnd() {
	this.xml.closeAll();
	this.cw.close();
	}

	writeRootStats(node) {
	const metrics = node.getCoverageSummary();
	this.cw.println('<?xml version="1.0" ?>');
	this.cw.println(
	'<!DOCTYPE coverage SYSTEM "http://cobertura.sourceforge.net/xml/coverage-04.dtd">'
	);
	this.xml.openTag('coverage', {
	'lines-valid': metrics.lines.total,
	'lines-covered': metrics.lines.covered,
	'line-rate': metrics.lines.pct / 100.0,
	'branches-valid': metrics.branches.total,
	'branches-covered': metrics.branches.covered,
	'branch-rate': metrics.branches.pct / 100.0,
	timestamp: this.timestamp,
	complexity: '0',
	version: '0.1'
	});
	this.xml.openTag('sources');
	this.xml.inlineTag('source', null, this.projectRoot);
	this.xml.closeTag('sources');
	this.xml.openTag('packages');
	}

	onSummary(node) {
	const metrics = node.getCoverageSummary(true);
	if (!metrics) {
	return;
	}
	this.xml.openTag('package', {
	name: node.isRoot() ? 'main' : escape(asJavaPackage(node)),
	'line-rate': metrics.lines.pct / 100.0,
	'branch-rate': metrics.branches.pct / 100.0
	});
	this.xml.openTag('classes');
	}

	onSummaryEnd(node) {
	const metrics = node.getCoverageSummary(true);
	if (!metrics) {
	return;
	}
	this.xml.closeTag('classes');
	this.xml.closeTag('package');
	}

	onDetail(node) {
	const fileCoverage = node.getFileCoverage();
	const metrics = node.getCoverageSummary();
	const branchByLine = fileCoverage.getBranchCoverageByLine();

	this.xml.openTag('class', {
	name: escape(asClassName(node)),
	filename: path.relative(this.projectRoot, fileCoverage.path),
	'line-rate': metrics.lines.pct / 100.0,
	'branch-rate': metrics.branches.pct / 100.0
	});

	this.xml.openTag('methods');
	const fnMap = fileCoverage.fnMap;
	Object.entries(fnMap).forEach(([k, { name, decl }]) => {
	const hits = fileCoverage.f[k];
	this.xml.openTag('method', {
	name: escape(name),
	hits,
	signature: '()V' //fake out a no-args void return
	});
	this.xml.openTag('lines');
	//Add the function definition line and hits so that jenkins cobertura plugin records method hits
	this.xml.inlineTag('line', {
	number: decl.start.line,
	hits
	});
	this.xml.closeTag('lines');
	this.xml.closeTag('method');
	});
	this.xml.closeTag('methods');

	this.xml.openTag('lines');
	const lines = fileCoverage.getLineCoverage();
	Object.entries(lines).forEach(([k, hits]) => {
	const attrs = {
	number: k,
	hits,
	branch: 'false'
	};
	const branchDetail = branchByLine[k];

	if (branchDetail) {
	attrs.branch = true;
	attrs['condition-coverage'] =
	branchDetail.coverage +
	'% (' +
	branchDetail.covered +
	'/' +
	branchDetail.total +
	')';
	}
	this.xml.inlineTag('line', attrs);
	});

	this.xml.closeTag('lines');
	this.xml.closeTag('class');
	}
	}

	function asJavaPackage(node) {
	return node
	.getRelativeName()
	.replace(/\//g, '.')
	.replace(/\\/g, '.')
	.replace(/\.$/, '');
	}

	function asClassName(node) {
	return node.getRelativeName().replace(/.*[\\/]/, '');
	}

	module.exports = CoberturaReport;

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