How to use ContentWriter method in istanbul

Best JavaScript code snippet using istanbul

file-writer.js

Source:file-writer.js

...17 * @class ContentWriter18 * @constructor19 */20/* istanbul ignore next: abstract class */21function ContentWriter() {}22/**23 * writes a string as-is to the destination24 * @param {String} str the string to write25 */26/* istanbul ignore next: abstract class */27ContentWriter.prototype.write = function() {28    throw new Error('write: must be overridden');29};30/**31 * returns the colorized version of a string. Typically,32 * content writers that write to files will return the33 * same string and ones writing to a tty will wrap it in34 * appropriate escape sequences.35 * @param {String} str the string to colorize36 * @param {String} clazz one of `high`, `medium` or `low`37 * @returns {String} the colorized form of the string38 */39ContentWriter.prototype.colorize = function(str /*, clazz*/) {40    return str;41};42/**43 * writes a string appended with a newline to the destination44 * @param {String} str the string to write45 */46ContentWriter.prototype.println = function(str) {47    this.write(str + '\n');48};49/**50 * closes this content writer. Should be called after all writes are complete.51 */52ContentWriter.prototype.close = function() {};53/**54 * a content writer that writes to a file55 * @param {Number} fd - the file descriptor56 * @extends ContentWriter57 * @constructor58 */59function FileContentWriter(fd) {60    this.fd = fd;61}62util.inherits(FileContentWriter, ContentWriter);63FileContentWriter.prototype.write = function(str) {64    fs.writeSync(this.fd, str);65};66FileContentWriter.prototype.close = function() {67    fs.closeSync(this.fd);68};69/**70 * a content writer that writes to the console71 * @extends ContentWriter72 * @constructor73 */74function ConsoleWriter() {}75util.inherits(ConsoleWriter, ContentWriter);76// allow stdout to be captured for tests.77let capture = false;78let output = '';79ConsoleWriter.prototype.write = function(str) {80    if (capture) {81        output += str;82    } else {83        process.stdout.write(str);84    }85};86ConsoleWriter.prototype.colorize = function(str, clazz) {87    const colors = {88        low: '31;1',89        medium: '33;1',90        high: '32;1'91    };92    /* istanbul ignore next: different modes for CI and local */93    if (supportsColor.stdout && colors[clazz]) {94        return '\u001b[' + colors[clazz] + 'm' + str + '\u001b[0m';95    }96    return str;97};98/**99 * utility for writing files under a specific directory100 * @class FileWriter101 * @param {String} baseDir the base directory under which files should be written102 * @constructor103 */104function FileWriter(baseDir) {105    if (!baseDir) {106        throw new Error('baseDir must be specified');107    }108    this.baseDir = baseDir;109}110/**111 * static helpers for capturing stdout report output;112 * super useful for tests!113 */114FileWriter.startCapture = function() {115    capture = true;116};117FileWriter.stopCapture = function() {118    capture = false;119};120FileWriter.getOutput = function() {121    return output;122};123FileWriter.resetOutput = function() {124    output = '';125};126/**127 * returns a FileWriter that is rooted at the supplied subdirectory128 * @param {String} subdir the subdirectory under which to root the129 *  returned FileWriter130 * @returns {FileWriter}131 */132FileWriter.prototype.writerForDir = function(subdir) {133    if (isAbsolute(subdir)) {134        throw new Error(135            'Cannot create subdir writer for absolute path: ' + subdir136        );137    }138    return new FileWriter(this.baseDir + '/' + subdir);139};140/**141 * copies a file from a source directory to a destination name142 * @param {String} source path to source file143 * @param {String} dest relative path to destination file144 * @param {String} [header=undefined] optional text to prepend to destination145 *  (e.g., an "this file is autogenerated" comment, copyright notice, etc.)146 */147FileWriter.prototype.copyFile = function(source, dest, header) {148    if (isAbsolute(dest)) {149        throw new Error('Cannot write to absolute path: ' + dest);150    }151    dest = path.resolve(this.baseDir, dest);152    mkdirp.sync(path.dirname(dest));153    let contents;154    if (header) {155        contents = header + fs.readFileSync(source, 'utf8');156    } else {157        contents = fs.readFileSync(source);158    }159    fs.writeFileSync(dest, contents);160};161/**162 * returns a content writer for writing content to the supplied file.163 * @param {String|null} file the relative path to the file or the special164 *  values `"-"` or `null` for writing to the console165 * @returns {ContentWriter}166 */167FileWriter.prototype.writeFile = function(file) {168    if (file === null || file === '-') {169        return new ConsoleWriter();170    }171    if (isAbsolute(file)) {172        throw new Error('Cannot write to absolute path: ' + file);173    }174    file = path.resolve(this.baseDir, file);175    mkdirp.sync(path.dirname(file));176    return new FileContentWriter(fs.openSync(file, 'w'));177};...

index.js

Source:index.js

1/*2 Copyright 2012-2015, Yahoo Inc.3 Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.4 */5'use strict';6const { ReportBase } = require('istanbul-lib-report');7class JsonSummaryReport extends ReportBase {8    constructor(opts) {9        super();10        this.file = opts.file || 'coverage-summary.json';11        this.contentWriter = null;12        this.first = true;13    }14    onStart(root, context) {15        this.contentWriter = context.writer.writeFile(this.file);16        this.contentWriter.write('{');17    }18    writeSummary(filePath, sc) {19        const cw = this.contentWriter;20        if (this.first) {21            this.first = false;22        } else {23            cw.write(',');24        }25        cw.write(JSON.stringify(filePath));26        cw.write(': ');27        cw.write(JSON.stringify(sc));28        cw.println('');29    }30    onSummary(node) {31        if (!node.isRoot()) {32            return;33        }34        this.writeSummary('total', node.getCoverageSummary());35    }36    onDetail(node) {37        this.writeSummary(38            node.getFileCoverage().path,39            node.getCoverageSummary()40        );41    }42    onEnd() {43        const cw = this.contentWriter;44        cw.println('}');45        cw.close();46    }47}...

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3collector.add(__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(__coverage__);12var reporter = new istanbul.Reporter();13reporter.add('json');14reporter.write(collector, true, function() {15    console.log('All reports generated');16});

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4reporter.add('text');5collector.add(coverage);6reporter.write(collector, true, function () {7    console.log('All reports generated');8});9var istanbul = require('istanbul');10var collector = new istanbul.Collector();11var reporter = new istanbul.Reporter();12reporter.add('text');13collector.add(coverage);14reporter.write(collector, true, function () {15    console.log('All reports generated');16});

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4var sync = false;5var contentWriter = new istanbul.Reporter.ContentWriter({sync: sync});6reporter.add('text');7reporter.addAll(['lcov']);8reporter.write(collector, sync, function() {9    console.log('done!');10});11        var columns = opts.columns || ['file', 'statement', 'branch', 'function', 'line', 'method', 'class'];12    at TextReport.Report.mix.writeDetail (/Users/xxx/node_modules/istanbul/lib/report/text.js:30:33)13    at TextReport.Report.mix.writeReport (/Users/xxx/node_modules/istanbul/lib/report/text.js:20:14)14    at SyncFileWriter.extend.writeFile (/Users/xxx/node_modules/istanbul/lib/util/file-writer.js:57:9)15    at FileWriter.extend.writeFile (/Users/xxx/node_modules/istanbul/lib/util/file-writer.js:147:23)16    at Array.forEach (native)17    at Reporter.write (/Users/xxx/node_modules/istanbul/lib/reporter.js:289:23)

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4var sync = false;5collector.add(global.__coverage__);6reporter.add('text');7reporter.write(collector, sync, function () {8    console.log('All reports generated');9});10{11    "C:\\Users\\user\\Desktop\\test\\test.js": {12        "s": {

Using AI Code Generation

1var istanbulLibReport = require('istanbul-lib-report');2var istanbulReports = require('istanbul-reports');3var path = require('path');4var fs = require('fs');5var mkdirp = require('mkdirp');6var libReport = istanbulLibReport.create('json');7var context = istanbulLibReport.createContext({8});9var tree = istanbulLibReport.summarizers.pkg(libReport.getFinalCoverage());10libReport.writeReport(tree, context);11console.log('Report generated at ' + path.resolve('reports', 'coverage.json'));12var istanbulLibReport = require('istanbul-lib-report');13var istanbulReports = require('istanbul-reports');14var path = require('path');15var fs = require('fs');16var mkdirp = require('mkdirp');17var libReport = istanbulLibReport.create('json');18var context = istanbulLibReport.createContext({19});20var tree = istanbulLibReport.summarizers.pkg(libReport.getFinalCoverage());21libReport.writeReport(tree, context);22console.log('Report generated at ' + path.resolve('reports', 'coverage.json'));23var istanbulLibReport = require('istanbul-lib-report');24var istanbulReports = require('istanbul-reports');25var path = require('path');26var fs = require('fs');27var mkdirp = require('mkdirp');28var libReport = istanbulLibReport.create('json');29var context = istanbulLibReport.createContext({30});31var tree = istanbulLibReport.summarizers.pkg(libReport.getFinalCoverage());32libReport.writeReport(tree, context);33console.log('Report generated at ' + path.resolve('reports', 'coverage.json'));34var istanbulLibReport = require('istanbul-lib-report');35var istanbulReports = require('istanbul-reports');36var path = require('path');37var fs = require('fs');38var mkdirp = require('

Using AI Code Generation

1const istanbul = require('istanbul-lib-report');2const context = istanbul.createContext();3const report = istanbul.create('json', {});4const writer = report.createWriter();5writer.writeReport(context, {});6writer.on('done', function () {7  console.log('done');8});9writer.on('error', function (error) {10  console.error(error);11});

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4var instrumented = require('./instrumented.js');5instrumented();6collector.add(require('./coverage/coverage.json'));7reporter.add('text');8reporter.write(collector, true, function () {9    console.log('done');10});

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.