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How to use BaselineCollector method in istanbul

Best JavaScript code snippet using istanbul

run-instrument.js

Source:run-instrument.js

...15 * Chunk file size to use when reading non JavaScript files in memory16 * and copying them over when using complete-copy flag.17 */18var READ_FILE_CHUNK_SIZE = 64 * 1024;19function BaselineCollector(instrumenter) {20    this.instrumenter = instrumenter;21    this.map = libCoverage.createCoverageMap();22    this.instrument = instrumenter.instrument.bind(this.instrumenter);23    var origInstrumentSync = instrumenter.instrumentSync;24    this.instrumentSync = function () {25        var args = Array.prototype.slice.call(arguments),26            ret = origInstrumentSync.apply(this.instrumenter, args),27            baseline = this.instrumenter.lastFileCoverage();28        this.map.addFileCoverage(baseline);29        return ret;30    };31    //monkey patch the instrumenter to call our version instead32    instrumenter.instrumentSync = this.instrumentSync.bind(this);33}34BaselineCollector.prototype.getCoverage = function () {35    return this.map.toJSON();36};37function processFiles(instrumenter, opts, callback) {38    var inputDir = opts.inputDir,39        outputDir = opts.outputDir,40        relativeNames = opts.names,41        extensions = opts.extensions,42        verbose = opts.verbose;43    var processor = function (name, callback) {44            var inputFile = path.resolve(inputDir, name),45                outputFile = path.resolve(outputDir, name),46                inputFileExtension = path.extname(inputFile),47                isJavaScriptFile = extensions.indexOf(inputFileExtension) > -1,48                oDir = path.dirname(outputFile),49                readStream, writeStream;50            callback = once(callback);51            mkdirp.sync(oDir);52            /* istanbul ignore if */53            if (fs.statSync(inputFile).isDirectory()) {54                return callback(null, name);55            }56            if (isJavaScriptFile) {57                fs.readFile(inputFile, 'utf8', function (err, data) {58                    /* istanbul ignore if */ if (err) { return callback(err, name); }59                    instrumenter.instrument(data, inputFile, function (iErr, instrumented) {60                        if (iErr) { return callback(iErr, name); }61                        fs.writeFile(outputFile, instrumented, 'utf8', function (err) {62                            return callback(err, name);63                        });64                    });65                });66            }67            else {68                // non JavaScript file, copy it as is69                readStream = fs.createReadStream(inputFile, {'bufferSize': READ_FILE_CHUNK_SIZE});70                writeStream = fs.createWriteStream(outputFile);71                readStream.on('error', callback);72                writeStream.on('error', callback);73                readStream.pipe(writeStream);74                readStream.on('end', function() {75                    callback(null, name);76                });77            }78        },79        q = async.queue(processor, 10),80        errors = [],81        count = 0,82        startTime = new Date().getTime();83    q.push(relativeNames, function (err, name) {84        var inputFile, outputFile;85        if (err) {86            errors.push({ file: name, error: err.message || /* istanbul ignore next */ err.toString() });87            inputFile = path.resolve(inputDir, name);88            outputFile = path.resolve(outputDir, name);89            fs.writeFileSync(outputFile, fs.readFileSync(inputFile));90        }91        if (verbose) {92            console.error('Processed: ' + name);93        } else {94            if (count % 100 === 0) { process.stdout.write('.'); }95        }96        count += 1;97    });98    q.drain = function () {99        var endTime = new Date().getTime();100        console.error('\nProcessed [' + count + '] files in ' + Math.floor((endTime - startTime) / 1000) + ' secs');101        if (errors.length > 0) {102            console.error('The following ' + errors.length + ' file(s) had errors and were copied as-is');103            console.error(errors);104        }105        return callback();106    };107}108function run(config, opts, callback) {109    opts = opts || {};110    var iOpts = config.instrumentation,111        input = opts.input,112        output = opts.output,113        excludes = opts.excludes,114        file,115        stats,116        stream,117        includes,118        instrumenter,119        origCallback = callback,120        needBaseline = iOpts.saveBaseline(),121        baselineFile = path.resolve(iOpts.baselineFile());122    if (iOpts.completeCopy()) {123        includes = ['**/*'];124    }125    else {126        includes = iOpts.extensions().map(function(ext) {127            return '**/*' + ext;128        });129    }130    if (!input) {131        return callback(new Error('No input specified'));132    }133    instrumenter = libInstrument.createInstrumenter(iOpts.getInstrumenterOpts());134    if (needBaseline) {135        mkdirp.sync(path.dirname(baselineFile));136        instrumenter = new BaselineCollector(instrumenter);137        callback = function (err) {138            /* istanbul ignore else */139            if (!err) {140                console.error('Saving baseline coverage at ' + baselineFile);141                fs.writeFileSync(baselineFile, JSON.stringify(instrumenter.getCoverage()), 'utf8');142            }143            return origCallback(err);144        };145    }146    file = path.resolve(input);147    stats = fs.statSync(file);148    if (stats.isDirectory()) {149        if (!output) { return callback(inputError.create('Need an output directory when input is a directory!')); }150        if (output === file) { return callback(inputError.create('Cannot instrument into the same directory/ file as input!')); }...

istanbul-baseline.js

Source:istanbul-baseline.js

...68    let baselineFile = "coverage/coverage-baseline.json";69    if(argv.output) {70        baselineFile = argv.output;71    }72    let instrumenter = new BaselineCollector(new istanbul.Instrumenter());73    let files = argv._74        .map(expandArg).reduce(concat, []);75    files.forEach(file => {76        file = path.resolve(cwd, file);77        instrumenter.instrumentSync(fs.readFileSync(file, 'utf8'), file);78    });79    baselineFile = path.resolve(cwd, baselineFile);80    mkdirp.sync(path.dirname(baselineFile));81    yield writeJSON(instrumenter.getCoverage(), baselineFile);82    message(`istanbul-baseline:\n  ${files.length} files. \n  ${baselineFile}`);...

grunt.js

Source:grunt.js

1module.exports = function(grunt) {2	grunt.registerMultiTask("instrument", "Instrument with istanbul", function() {3		var istanbul = require("istanbul"),4			instrumenter,5			options,6			instrumenterOptions,7			baselineCollector;8		9		options = this.options({10		});11		12		if( options.baseline ) {13			baselineCollector = new istanbul.Collector();14		}15		16		instrumenterOptions = {17			coverageVariable: options.coverageVariable || "__coverage__",18			embedSource: options.embedSource || false,19			preserveComments: options.preserveComments || false,20			noCompact: options.noCompact || false,21			noAutoWrap: options.noAutoWrap || false,22			codeGenerationOptions: options.codeGenerationOptions,23			debug: options.debug || false,24			walkDebug: options.walkDebug || false25		};26		27		instrumenter = new istanbul.Instrumenter(instrumenterOptions);28		29		this.files.forEach(function(f) {30//console.log(f.src, " -> ", f.dest);31			if( f.src.length !== 1 ) {32				throw new Error("encountered src with length: " + f.src.length + ": " + JSON.stringify(f.src));33			}34			var filename = f.src[0],35				code = grunt.file.read(filename, {encoding: grunt.file.defaultEncoding}),36				result = instrumenter.instrumentSync(code, filename),37				baseline,38				coverage;39			40			if( options.baseline ) {41				baseline = instrumenter.lastFileCoverage();42				coverage = {};43				coverage[baseline.path] = baseline;44				baselineCollector.add(coverage);45			}46			47			grunt.file.write(f.dest, result, {encoding: grunt.file.defaultEncoding});48		});49		50		if( options.baseline ) {51			grunt.file.write(options.baseline, JSON.stringify(baselineCollector.getFinalCoverage()), {encoding: grunt.file.defaultEncoding});52		}53	});...

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3collector.add(global.__coverage__);4var reporter = new istanbul.Reporter();5reporter.add('json');6reporter.write(collector, true, function() {7  console.log('All reports generated');8});9var istanbul = require('istanbul');10var collector = new istanbul.Collector();11collector.add(global.__coverage__);12var reporter = new istanbul.Reporter();13reporter.add('json');14reporter.write(collector, true, function() {15  console.log('All reports generated');16});17var istanbul = require('istanbul');18var collector = new istanbul.Collector();19collector.add(global.__coverage__);20var reporter = new istanbul.Reporter();21reporter.add('json');22reporter.write(collector, true, function() {23  console.log('All reports generated');24});25var istanbul = require('istanbul');26var collector = new istanbul.Collector();27collector.add(global.__coverage__);28var reporter = new istanbul.Reporter();29reporter.add('json');30reporter.write(collector, true, function() {31  console.log('All reports generated');32});33var istanbul = require('istanbul');34var collector = new istanbul.Collector();35collector.add(global.__coverage__);36var reporter = new istanbul.Reporter();37reporter.add('json');38reporter.write(collector, true, function() {39  console.log('All reports generated');40});41var istanbul = require('istanbul');42var collector = new istanbul.Collector();

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3collector.add(global.__coverage__);4var reporter = new istanbul.Reporter();5reporter.add('text-summary');6reporter.write(collector, true, function () {7  console.log('All reports generated');8});

Using AI Code Generation

1var collector = new istanbul.Collector();2collector.add(global.__coverage__);3var reporter = new istanbul.Reporter();4reporter.add('lcov');5reporter.write(collector, true, function() {6  console.log('All reports generated');7});8var report = istanbul.Report.create('html');9report.writeReport(collector, true);

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4var sync = false;5collector.add(__dirname + '/coverage/coverage.json', sync, function (err) {6    reporter.add('text-summary');7    reporter.addAll(['lcov', 'text', 'html']);8    reporter.write(collector, sync, function () {9        console.log('All reports generated');10    });11});12var istanbul = require('istanbul');13var collector = new istanbul.Collector();14var reporter = new istanbul.Reporter();15var sync = false;16collector.add(__dirname + '/coverage/coverage.json', sync, function (err) {17    reporter.addAll(['lcov', 'text', 'html']);18    reporter.write(collector, sync, function () {19        console.log('All reports generated');20    });21});22var istanbul = require('istanbul');23var collector = new istanbul.Collector();24var reporter = new istanbul.Reporter();25var sync = false;26collector.add(__dirname + '/coverage/coverage.json', sync, function (err) {27    reporter.addAll(['lcov', 'text', 'html']);28    reporter.write(collector, sync, function () {29        console.log('All reports generated');30    });31});32var istanbul = require('istanbul');33var collector = new istanbul.Collector();34var reporter = new istanbul.Reporter();35var sync = false;36collector.add(__dirname + '/coverage/coverage.json', sync, function (err) {37    reporter.addAll(['lcov', 'text', 'html']);38    reporter.write(collector, sync, function () {39        console.log('All reports generated');40    });

Using AI Code Generation

1var istanbul = require('istanbul'),2    collector = new istanbul.Collector();3var istanbul = require('istanbul'),4    collector = new istanbul.Collector();5var istanbul = require('istanbul'),6    collector = new istanbul.Collector();7var istanbul = require('istanbul'),8    collector = new istanbul.Collector();9var istanbul = require('istanbul'),10    collector = new istanbul.Collector();11var istanbul = require('istanbul'),12    collector = new istanbul.Collector();13var istanbul = require('istanbul'),14    collector = new istanbul.Collector();15var istanbul = require('istanbul'),16    collector = new istanbul.Collector();17var istanbul = require('istanbul'),18    collector = new istanbul.Collector();19var istanbul = require('istanbul'),20    collector = new istanbul.Collector();21var istanbul = require('istanbul'),22    collector = new istanbul.Collector();23var istanbul = require('istanbul'),24    collector = new istanbul.Collector();25var istanbul = require('istanbul'),26    collector = new istanbul.Collector();27var istanbul = require('istanbul'),28    collector = new istanbul.Collector();29var istanbul = require('istanbul'),30    collector = new istanbul.Collector();

Using AI Code Generation

1var Istanbul = require('istanbul');2var collector = new Istanbul.Collector();3collector.add(__coverage__);4var reporter = new Istanbul.Reporter();5reporter.addAll(['text-summary']);6reporter.write(collector, true, function () {7    console.log('All reports generated');8});

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4collector.add(global.__coverage__ || {});5reporter.add('text-summary');6reporter.addAll(['lcov', 'html']);7reporter.write(collector, sync, function () {8  console.log('All reports generated');9});

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3collector.add(__coverage__);4var coverage = collector.getFinalCoverage();5var fs = require('fs');6fs.writeFileSync('coverage.json', JSON.stringify(coverage));

Using AI Code Generation

1var collector = new istanbul.Collector();2collector.add(coverage);3var report = istanbul.Report.create('lcov', {});4report.writeReport(collector, true);5"scripts": {6  }

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