Code coverage script for .net core projects

code-coverage.js

var commandExists = require('command-exists');
const execSync = require('child_process').execSync;
const rimraf = require('rimraf');

function runCoverageReport() {
    console.log('started code coverage');
    rimraf.sync('TestResults');
    let result = execSync('dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=cobertura /p:CoverletOutput=./TestResults/');
    console.log(result.toString());
    console.log('finished code coverage');
}

function generateReport() {
    console.log('started report generation');
    let result = execSync('reportgenerator "-reports:./**/TestResults/coverage.cobertura.xml" "-targetdir:./TestResults/CoverageReport/"');
    console.log(result.toString());
    console.log('finished report generation');
}

function openReport() {
    const osPlatform = process.platform;
    console.log(`opening report for ${osPlatform}`);
    if (osPlatform === 'darwin') {
        execSync('open ./TestResults/CoverageReport/index.htm')
    }
    else if (osPlatform === 'win64' || osPlatform === 'win32') {
        execSync('start ./TestResults/CoverageReport/index.htm')
    }
}

async function main() {
    try {
        await commandExists('coverlet');
        console.log('coverlet command found and running coverage report');
    } catch (e) {
        console.log('installing coverlet.....');
        execSync('dotnet tool install --global coverlet.console');
    }

    runCoverageReport();

    try {
        await commandExists('reportgenerator');
        console.log('reportgenerator command found and running report');
    } catch (e) {
        console.log('installing report generator.....');
        execSync('dotnet tool install --global dotnet-reportgenerator-globaltool');
    }

    generateReport();

    openReport();
};

main();