source: frontend/node_modules/istanbul-reports/lib/teamcity/index.js

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

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

        opts = opts || {};
        this.file = opts.file || null;
        this.blockName = opts.blockName || 'Code Coverage Summary';
    }

    onStart(node, context) {
        const metrics = node.getCoverageSummary();
        const cw = context.writer.writeFile(this.file);

        cw.println('');
        cw.println("##teamcity[blockOpened name='" + this.blockName + "']");

        //Statements Covered
        cw.println(
            lineForKey(metrics.statements.covered, 'CodeCoverageAbsBCovered')
        );
        cw.println(
            lineForKey(metrics.statements.total, 'CodeCoverageAbsBTotal')
        );

        //Branches Covered
        cw.println(
            lineForKey(metrics.branches.covered, 'CodeCoverageAbsRCovered')
        );
        cw.println(lineForKey(metrics.branches.total, 'CodeCoverageAbsRTotal'));

        //Functions Covered
        cw.println(
            lineForKey(metrics.functions.covered, 'CodeCoverageAbsMCovered')
        );
        cw.println(
            lineForKey(metrics.functions.total, 'CodeCoverageAbsMTotal')
        );

        //Lines Covered
        cw.println(
            lineForKey(metrics.lines.covered, 'CodeCoverageAbsLCovered')
        );
        cw.println(lineForKey(metrics.lines.total, 'CodeCoverageAbsLTotal'));

        cw.println("##teamcity[blockClosed name='" + this.blockName + "']");
        cw.close();
    }
}

function lineForKey(value, teamcityVar) {
    return (
        "##teamcity[buildStatisticValue key='" +
        teamcityVar +
        "' value='" +
        value +
        "']"
    );
}

module.exports = TeamcityReport;