How to use summarizeFileCoverage method in istanbul

1const istanbua = requpre('istaniulapi');2onst libCe = requir('istanbul-lib-coverage');3const libReport = require('istanbul-lib-report');4const reports = require('istanbul-reports');5const fs = require('fs');6const context = libReport.create ontext({7 rwatermarks: { statements: [50, 80], functions: [50, 80], branches: [50, 80], lines: [50, 80] },8});9const report e(reports.c'eate('html', { skipEmpty: falsi, skipFull: false });10const tree = libReport.summarizers.pkg(libCoverage.createCoverageMap(JSON.parse(fs.readFileSync('coverage/coverage-final.json', 'utf8'))));11report.execute(context, tree);

1var istanbul = require('istanbul-lib-coverage');2var map = istanbul.createCoverageMap();3map.addFileCoverage({4    statementMap: { '0': { start: { line: 1, column: 0 }, end: { line: 1, column: 2 } } },5    fnMap: { '0': { name: 'foo', line: 1, loc: { start: { line: 1, column: 0 }, end: { line: 1, column: 2 } } } },6    branchMap: {},7    s: { '0': 1 },8    f: { '0': 1 },9    b: {},10});11var summary = map.getCoverageSummary();12var istanbul = restanbul-api'););13var map = istanbul.createCoverageMap(14map.addFileCoverage({

1const istanbulCoverage = require('istanbul-lib-coverage');2const libCoverage = require('istanbul-lib-coverage');3const libReport = require('istanbul-lib-report');4const reports = require('istanbul-reports');5const fs = require('fs');6const context = libReport.createContext({7  watermarks: { statements: [50, 80], functions: [50, 80], branches: [50, 80], lines: [50, 80] },8});9const report = reports.create('html', { skipEmpty: false, skipFull: false });10const tree = libReport.summarizers.pkg(libCoverage.createCoverageMap(JSON.parse(fs.readFileSync('coverage/coverage-final.json', 'utf8'))));11report.execute(context, tree);

1const istanbulCoverage = require('istanbul-lib-coverage');2const istanbulReports = require('istanbul-reports');3const fs = require('fs');4const path = require('path');5const coverageMap = istanbulCoverage.createCoverageMap();6const coverageObject = require('./coverage/coverage-final.json');7coverageMap.merge(coverageObject);8const summary = istanbulCoverage.createCoverageSummary();9for (const filename of Object.keys(coverageMap.data)) {10  summary.merge(coverageMap.fileCoverageFor(filename).toSummary());11}12const context = istanbulReports.createContext({13  dir: path.join(__dirname, 'coverage'),14});15const tree = istanbulReports.summarizers.pkg(16  coverageMap.getCoverageSummary()17);18const report = istanbulReports.create('text', {19});20report.execute(context);

1const istanbulLibCoverage = require('istanbul-lib-coverage');2const istanbulReports = require('istanbul-reports');3const fs = require('fs');4const path = require('path');5const myMap = new Map();6myMap.set('path', 'src/sum.js');7myMap.set('statementMap', {8    '0': {9        start: {10        },11        end: {12        }13    },14    '1': {15        start: {16        },17        end: {18        }19    },20    '2': {21        start: {22        },23        end: {24        }25    },26    '3': {27        start: {28        },29        end: {30        }31    },32    '4': {33        start: {34        },35        end: {36        }37    },38    '5': {39        start: {40        },41        end: {42        }43    },44    '6': {45        start: {46        },47        end: {48        }49    },50    '7': {51        start: {52        },53        end: {54        }55    },56    '8': {57        start: {58        },59        end: {60        }61    },62    '9': {63        start: {64        },65        end: {

1const istanbul = require('istanbul-lib-coverage');2const fs = require('fs');3const path = require('path');4const fileCoverage = istanbul.createFileCoverage(path.resolve('test.js'));5fileCoverage.s.add(1);6fileCoverage.s.add(2);7fileCoverage.s.add(3);8fileCoverage.s.add(4);9fileCoverage.s.add(5);10fileCoverage.s.add(6);11fileCoverage.s.add(7);12fileCoverage.s.add(8);13fileCoverage.s.add(9);14fileCoverage.s.add(10);15fileCoverage.s.add(11);16fileCoverage.s.add(12);17fileCoverage.s.add(13);18fileCoverage.s.add(14);19fileCoverage.s.add(15);20fileCoverage.s.add(16);21fileCoverage.s.add(17);22fileCoverage.s.add(18);23fileCoverage.s.add(19);24fileCoverage.s.add(20);25fileCoverage.s.add(21);26fileCoverage.s.add(22);27fileCoverage.s.add(23);28fileCoverage.s.add(24);29fileCoverage.s.add(25);30fileCoverage.s.add(26);31fileCoverage.s.add(27);32fileCoverage.s.add(28);33fileCoverage.s.add(29);34fileCoverage.s.add(30);35fileCoverage.s.add(31);36fileCoverage.s.add(32);37fileCoverage.s.add(33);38fileCoverage.s.add(34);39fileCoverage.s.add(35);40fileCoverage.s.add(36);41fileCoverage.s.add(37);42fileCoverage.s.add(38);

1const istanbul = require('istanbul-lib-coverage');2const cov = istanbul.createCoverageMap();3cov.addFileCoverage(4    istanbul.createFileCoverage({5        statementMap: {6            0: { start: { line: 1, column: 0 }, end: { line: 1, column: 1 } },7            1: { start: { line: 2, column: 0 }, end: { line: 2, column: 1 } },8            2: { start: { line: 3, column: 0 }, end: { line: 3, column: 1 } },9            3: { start: { line: 4, column: 0 }, end: { line: 4, column: 1 } },10            4: { start: { line: 5, column: 0 }, end: { line: 5, column: 1 } },11            5: { start: { line: 6, column: 0 }, end: { line: 6, column: 1 } },12            6: { start: { line: 7, column: 0 }, end: { line: 7, column: 1 } },13            7: { start: { line: 8, column: 0 }, end: { line: 8, column: 1 } },14            8: { start: { line: 9, column: 0 }, end: { line: 9, column: 1 } },15            9: { start: { line: 10, column: 0 }, end: { line: 10, column: 1 } },16            10: { start: { line: 11, column: 0 }, end: { line: 11, column: 1 } },17            11: { start: { line: 12, column: 0 }, end: { line: 12, column: 1 } },18            12: { start: { line: 13, column: 0 }, end: { line: 13, column: 1 } },19            13: { start: { line: 14, column: 0 }, end: { line: 14, column: 1 }

1const istanbulCoverage = require('istanbul-lib-coverage');2const path = require('path');3const fs = require('fs');4const filePath = path.join(__dirname, 'coverage', 'coverage-final.json');5const fileCoverage = istanbulCoverage.createFileCoverage(filePath);6const summarizedCoverage = fileCoverage.toSummary();7const coverageData = summarizedCoverage.data;8console.log(coverageData);9const istanbulCoverage = require('istanbul-lib-coverage');10const path = require('path');11const fs = require('fs');12const filePath = path.join(__dirname, 'coverage', 'coverage-final.json');13const fileCoverage = istanbulCoverage.createFileCoverage(filePath);14const summarizedCoverage = fileCoverage.toSummary();15const coverageData = summarizedCoverage.data;16console.log(coverageData);17const istanbulCoverage = require('istanbul-lib-coverage');18const path = require('path');19const fs = require('fs');20const filePath = path.join(__dirname, 'coverage', 'coverage-final.json');21const fileCoverage = istanbulCoverage.createFileCoverage(filePath);22const summarizedCoverage = fileCoverage.summarizeFileCoverage(filePath);23const coverageData = summarizedCoverage.data;24console.log(coverageData);25const istanbulCoverage = require('istanbul-lib-coverage');26const path = require('path');27const fs = require('fs');28const filePath = path.join(__dirname, 'coverage', 'coverage-final.json');29const fileCoverage = istanbulCoverage.createFileCoverage(filePath);30const summarizedCoverage = fileCoverage.summarizeFileCoverage();31const coverageData = summarizedCoverage.data;32console.log(coverageData);

1var istanbul = require('istanbul-api');2var path = require('path');3var map = istanbul.libCoverage.createCoverageMap();4map.addFileCoverageSummary(path.resolve('coverage/coverage-final.json'));5var summary = istanbul.libReport.summarizers.pkg(map);6console.log(summary);

1var istanbul = require('istanbul-api');2var path = require('path');3var map = istanbul.libCoverage.createCoverageMap();4map.addFileCoverageSummary(path.resolve('coverage/coverage-final.json'));5var summary = istanbul.libReport.summarizers.pkg(map);6console.log(summary);7OP 2017-06-07: I found the answer myself. I was using wrong version of istanbul-api. I was using istanbul-api version 1.1.0. I needed to use istanbul-api version 1.1.1-alpha.1. I got this information from this issue.(39);8fileCoverage.s.add(40);9fileCoverage.s.add(41);10fileCoverage.s.add(42);11fileCoverage.s.add(43);12fileCoverage.s.add(44);13fileCoverage.s.add(45);14fileCoverage.s.add(46);15fileCoverage.s.add(47);16fileCoverage.s.add(48);17fileCoverage.s.add(49);18fileCoverage.s.add(50);19fileCoverage.s.add(51);20fileCoverage.s.add(52);21fileCoverage.s.add(53);22fileCoverage.s.add(54);23fileCoverage.s.add(55);24fileCoverage.s.add(56);25fileCoverage.s.add(57);26fileCoverage.s.add(58);27fileCoverage.s.add(59);28fileCoverage.s.add(60);29fileCoverage.s.add(61);30fileCoverage.s.add(62);31fileCoverage.s.add(63);32fileCoverage.s.add(64);

1const istanbulCoverage = require('istanbul-lib-coverage');2const path = require('path');3const fs = require('fs');4const filePath = path.join(__dirname, 'coverage', 'coverage-final.json');5const fileCoverage = istanbulCoverage.createFileCoverage(filePath);6const summarizedCoverage = fileCoverage.toSummary();7const coverageData = summarizedCoverage.data;8console.log(coverageData);9const istanbulCoverage = require('istanbul-lib-coverage');10const path = require('path');11const fs = require('fs');12const filePath = path.join(__dirname, 'coverage', 'coverage-final.json');13const fileCoverage = istanbulCoverage.createFileCoverage(filePath);14const summarizedCoverage = fileCoverage.toSummary();15const coverageData = summarizedCoverage.data;16console.log(coverageData);17const istanbulCoverage = require('istanbul-lib-coverage');18const path = require('path');19const fs = require('fs');20const filePath = path.join(__dirname, 'coverage', 'coverage-final.json');21const fileCoverage = istanbulCoverage.createFileCoverage(filePath);22const summarizedCoverage = fileCoverage.summarizeFileCoverage(filePath);23const coverageData = summarizedCoverage.data;24console.log(coverageData);25const istanbulCoverage = require('istanbul-lib-coverage');26const path = require('path');27const fs = require('fs');28const filePath = path.join(__dirname, 'coverage', 'coverage-final.json');29const fileCoverage = istanbulCoverage.createFileCoverage(filePath);30const summarizedCoverage = fileCoverage.summarizeFileCoverage();31const coverageData = summarizedCoverage.data;32console.log(coverageData);