How to use mergeFileCoverage method in istanbul

Best JavaScript code snippet using istanbul

object-utils.js

Source: object-utils.js Github

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...221 * @param {Object} second the second file coverage object for the same file222 * @return {Object} an object that is a result of merging the two. Note that223 * the input objects are not changed in any way.224 */​225 function mergeFileCoverage(first, second) {226 var ret = JSON.parse(JSON.stringify(first)),227 i;228 delete ret.l; /​/​remove derived info229 Object.keys(second.s).forEach(function (k) {230 ret.s[k] += second.s[k];231 });232 Object.keys(second.f).forEach(function (k) {233 ret.f[k] += second.f[k];234 });235 Object.keys(second.b).forEach(function (k) {236 var retArray = ret.b[k],237 secondArray = second.b[k];238 for (i = 0; i < retArray.length; i += 1) {239 retArray[i] += secondArray[i];...

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istanbul-utils.js

Source: istanbul-utils.js Github

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...193 * @param {Object} second the second file coverage object for the same file194 * @return {Object} an object that is a result of merging the two. Note that195 * the input objects are not changed in any way.196 */​197 function mergeFileCoverage(first, second) {198 var ret = JSON.parse(JSON.stringify(first)),199 i;200 delete ret.l; /​/​remove derived info201 Object.keys(second.s).forEach(function (k) {202 ret.s[k] += second.s[k];203 });204 Object.keys(second.f).forEach(function (k) {205 ret.f[k] += second.f[k];206 });207 Object.keys(second.b).forEach(function (k) {208 var retArray = ret.b[k],209 secondArray = second.b[k];210 for (i = 0; i < retArray.length; i += 1) {211 retArray[i] += secondArray[i];...

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reporter.js

Source: reporter.js Github

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1"use strict";2Object.defineProperty(exports, "__esModule", { value: true });3const istanbul_lib_coverage_1 = require("istanbul-lib-coverage");4const transform_1 = require("@jest/​transform");5const reporters_1 = require("@jest/​reporters");6const storage_1 = require("./​storage");7class PuppeteerIstanbul extends reporters_1.CoverageReporter {8 constructor(globalConfig, _options) {9 const coverageReporters = [...(globalConfig.coverageReporters || [])];10 /​/​ Remove "text" or "text-summary" from the origin config. Because the text result output by11 /​/​ the origin CoverageReporter doesn't include puppeteer information.12 let reporterIndex;13 if ((reporterIndex = globalConfig.coverageReporters.indexOf("text")) >= 0)14 globalConfig.coverageReporters.splice(reporterIndex, 1);15 if ((reporterIndex = globalConfig.coverageReporters.indexOf("text-summary")) >= 0)16 globalConfig.coverageReporters.splice(reporterIndex, 1);17 super(Object.assign(Object.assign({}, globalConfig), { coverageReporters: coverageReporters }), _options);18 this.shouldInstrumentOptions = {19 collectCoverage: globalConfig.collectCoverage,20 collectCoverageFrom: globalConfig.collectCoverageFrom,21 collectCoverageOnlyFrom: globalConfig.collectCoverageOnlyFrom,22 coverageProvider: globalConfig.coverageProvider,23 changedFiles: undefined,24 };25 this.collectCoverage = globalConfig.collectCoverage;26 /​/​ Using environment variable to communicate between reporter and setup27 process.env.JEST_PUPPETEER_ISTANBUL_DIR = globalConfig.coverageDirectory;28 process.env.JEST_PUPPETEER_ISTANBUL_COVERAGE = this.collectCoverage ? "true" : "false";29 this.coverageStorage = new storage_1.CoverageStorage(globalConfig.coverageDirectory);30 }31 onRunStart(_results, _options) {32 debugger33 if (this.collectCoverage) {34 this.coverageStorage.delete();35 return super.onRunStart(_results, _options);36 }37 }38 onTestResult(test, testResult) {39 debugger40 if (this.collectCoverage) {41 const coverage = (0, istanbul_lib_coverage_1.createCoverageMap)({});42 const mergeFileCoverage = ([filename, fileCoverage]) => {43 if ((0, transform_1.shouldInstrument)(filename, this.shouldInstrumentOptions, test.context.config)) {44 coverage.merge({ [filename]: fileCoverage });45 }46 };47 Object.entries(this.coverageStorage.read()).map(mergeFileCoverage);48 if (testResult.coverage) {49 Object.entries(testResult.coverage).map(mergeFileCoverage);50 }51 if (Object.keys(coverage).length) {52 testResult.coverage = coverage.data;53 }54 return super.onTestResult(test, testResult);55 }56 }57 onRunComplete(contexts, aggregatedResults) {58 debugger59 if (this.collectCoverage) {60 return super.onRunComplete(contexts, aggregatedResults);61 }62 else {63 return Promise.resolve();64 }65 }66}...

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Using AI Code Generation

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1const { mergeFileCoverage } = require('istanbul-lib-coverage');2const { createCoverageMap } = require('istanbul-lib-coverage');3const { createContext } = require('istanbul-lib-report');4const { createReport } = require('istanbul-lib-report');5const html = require('istanbul-reports').create('html');6const text = require('istanbul-reports').create('text');7const textSummary = require('istanbul-reports').create('text-summary');8const lcov = require('istanbul-reports').create('lcov');9const cobertura = require('istanbul-reports').create('cobertura');10const json = require('istanbul-reports').create('json');11const fs = require('fs');12const path = require('path');13const coverageMap = createCoverageMap({});14const reportDir = 'reports';15const context = createContext({16 sourceFinder: createCoverageMap()17});18const report = createReport(context, 'html', {});19const coverageDir = 'coverage';20const coverageFiles = fs.readdirSync(coverageDir).filter(function (file) {21 return file.match(/​\.json$/​) && !file.match(/​\.json\.map$/​);22});23coverageFiles.forEach(function (file) {24 const coverage = JSON.parse(fs.readFileSync(path.join(coverageDir, file), 'utf8'));25 coverageMap.mergeFileCoverage(coverage);26});

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Using AI Code Generation

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1const { mergeFileCoverage } = require('istanbul-lib-coverage');2const fileCoverage1 = {3 statementMap: {4 '0': {5 start: {6 },7 end: {8 }9 },10 '1': {11 start: {12 },13 end: {14 }15 }16 },17 fnMap: {},18 branchMap: {},19 s: {20 },21 f: {},22 b: {},23};24const fileCoverage2 = {25 statementMap: {26 '0': {27 start: {28 },29 end: {30 }31 },32 '1': {33 start: {34 },35 end: {36 }37 },38 '2': {39 start: {40 },41 end: {42 }43 }44 },45 fnMap: {},46 branchMap: {},47 s: {48 },49 f: {},50 b: {},

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Using AI Code Generation

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1const istanbulCoverage = require('istanbul-lib-coverage');2const mergeFileCoverage = istanbulCoverage.mergeFileCoverage;3const createFileCoverage = istanbulCoverage.createFileCoverage;4const fileCoverage1 = createFileCoverage('test1.js');5const fileCoverage2 = createFileCoverage('test2.js');6const mergedFileCoverage = mergeFileCoverage(fileCoverage1, fileCoverage2);7console.log(mergedFileCoverage);8const istanbulCoverage = require('istanbul-lib-coverage');9const createFileCoverage = istanbulCoverage.createFileCoverage;10const fileCoverage = createFileCoverage('test1.js');11console.log(fileCoverage);12const istanbulCoverage = require('istanbul-lib-coverage');13const createFileCoverage = istanbulCoverage.createFileCoverage;14const fileCoverage = createFileCoverage('test2.js');15console.log(fileCoverage);16Your name to display (optional):17Your name to display (optional):18const istanbulCoverage = require('istanbul-lib-coverage');19const mergeFileCoverage = istanbulCoverage.mergeFileCoverage;20const createFileCoverage = istanbulCoverage.createFileCoverage;21const fileCoverage1 = createFileCoverage('test1.js');22const fileCoverage2 = createFileCoverage('test2.js');23const mergedFileCoverage = mergeFileCoverage(fileCoverage1, fileCoverage2);24console.log(mergedFileCoverage);25Your name to display (optional):

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Using AI Code Generation

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1const mergeFileCoverage = require('istanbul-lib-coverage').mergeFileCoverage;2const fs = require('fs');3const path = require('path');4const coverage1 = JSON.parse(fs.readFileSync(path.join(__dirname, 'coverage1.json'), 'utf8'));5const coverage2 = JSON.parse(fs.readFileSync(path.join(__dirname, 'coverage2.json'), 'utf8'));6const mergedCoverage = mergeFileCoverage(coverage1, coverage2);7console.log(mergedCoverage);

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Using AI Code Generation

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1const istanbulApi = require('istanbul-api');2const istanbulLibCoverage = require('istanbul-lib-coverage');3const map = new Map();4const fileCoverage1 = istanbulLibCoverage.createFileCoverage('file1.js');5const fileCoverage2 = istanbulLibCoverage.createFileCoverage('file2.js');6map.set('file1.js', fileCoverage1);7map.set('file2.js', fileCoverage2);8const mergedFileCoverage = istanbulApi.mergeFileCoverage(map);9console.log(mergedFileCoverage);

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Using AI Code Generation

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1var istanbul = require('istanbul-lib-coverage');2var map = istanbul.createCoverageMap();3map.mergeFileCoverage({4 statementMap: {5 '0': {6 start: {7 },8 end: {9 }10 }11 },12 s: {13 }14});15console.log(map.data);16{ test.js:17 { path: 'test.js',18 statementMap: { '0': [Object] },19 s: { '0': 1 } } }20var istanbul = require('istanbul-lib-coverage');21var map = istanbul.createCoverageMap();22map.mergeFileCoverage({23 statementMap: {24 '0': {25 start: {26 },27 end: {28 }29 }30 },31 s: {32 }33});34map.mergeFileCoverage({35 statementMap: {36 '0': {37 start: {38 },39 end: {40 }41 }42 },43 s: {44 }45});46console.log(map.data);47{ test.js:48 { path: 'test.js',49 statementMap: { '0': [Object] },50 s: { '0': 1 } },51 { path: 'test1.js',52 statementMap: { '0': [Object] },53 s: { '0': 1 } } }54{ test.js:55 { path: 'test.js',

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Using AI Code Generation

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1const istanbulCoverage = require('istanbul-lib-coverage');2const { createCoverageMap } = istanbulCoverage;3const coverageMap = createCoverageMap();4const coverageMap2 = createCoverageMap();5coverageMap.addFileCoverage({6 statementMap: { 0: { start: { line: 1, column: 0 }, end: { line: 1, column: 1 } } },7 fnMap: {},8 branchMap: {},9 s: { 0: 1 },10 f: {},11 b: {},12});13coverageMap2.addFileCoverage({14 statementMap: { 0: { start: { line: 1, column: 0 }, end: { line: 1, column: 1 } } },15 fnMap: {},16 branchMap: {},17 s: { 0: 1 },18 f: {},19 b: {},20});21coverageMap.merge(coverageMap2);22console.log(coverageMap);23CoverageMap {24 data: {25 'src/​file1.js': FileCoverage {26 fnMap: {},27 branchMap: {},28 f: {},29 b: {},30 },31 'src/​file2.js': FileCoverage {32 fnMap: {},33 branchMap: {},34 f: {},35 b: {},36 }37 }38}39const istanbulCoverage = require('istanbul-lib-coverage');40const { createCoverageMap } = istanbulCoverage;41const coverageMap = createCoverageMap();42const coverageMap2 = createCoverageMap();43coverageMap.addFileCoverage({44 statementMap: { 0: { start: { line: 1, column: 0 },

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You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.

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