How to use computeBranchTotals method in istanbul

Best JavaScript code snippet using istanbul

file-coverage.js

Source:file-coverage.js

...243        };244        ret.pct = percent(ret.covered, ret.total);245        return ret;246    }247    computeBranchTotals(property) {248        const stats = this[property];249        const ret = { total: 0, covered: 0, skipped: 0 };250        Object.values(stats).forEach(branches => {251            ret.covered += branches.filter(hits => hits > 0).length;252            ret.total += branches.length;253        });254        ret.pct = percent(ret.covered, ret.total);255        return ret;256    }257    /**258     * resets hit counts for all statements, functions and branches259     * in this coverage object resulting in zero coverage.260     */261    resetHits() {262        const statements = this.s;263        const functions = this.f;264        const branches = this.b;265        const branchesTrue = this.bT;266        Object.keys(statements).forEach(s => {267            statements[s] = 0;268        });269        Object.keys(functions).forEach(f => {270            functions[f] = 0;271        });272        Object.keys(branches).forEach(b => {273            branches[b].fill(0);274        });275        // Tracking additional information about branch truthiness276        // can be optionally enabled:277        if (branchesTrue) {278            Object.keys(branchesTrue).forEach(bT => {279                branchesTrue[bT].fill(0);280            });281        }282    }283    /**284     * returns a CoverageSummary for this file coverage object285     * @returns {CoverageSummary}286     */287    toSummary() {288        const ret = {};289        ret.lines = this.computeSimpleTotals('getLineCoverage');290        ret.functions = this.computeSimpleTotals('f', 'fnMap');291        ret.statements = this.computeSimpleTotals('s', 'statementMap');292        ret.branches = this.computeBranchTotals('b');293        // Tracking additional information about branch truthiness294        // can be optionally enabled:295        if (this['bt']) {296            ret.branchesTrue = this.computeBranchTotals('bT');297        }298        return new CoverageSummary(ret);299    }300}301// expose coverage data attributes302dataProperties(FileCoverage, [303    'path',304    'statementMap',305    'fnMap',306    'branchMap',307    's',308    'f',309    'b',310    'bT',...

Using AI Code Generation

1const istanbulAPI = require('istanbul-api');2const istanbulLibCoverage = require('istanbul-lib-coverage');3const istanbulLibReport = require('istanbul-lib-report');4const istanbulReports = require('istanbul-reports');5const map = istanbulLibCoverage.createCoverageMap();6const report = istanbulReports.create('text-summary');7map.addFileCoverage(JSON.parse(fs.readFileSync('coverage/coverage-final.json', 'utf8')));8const context = istanbulLibReport.createContext({9});10const tree = istanbulLibReport.summarizers.pkg(map);11const flat = istanbulLibReport.summarizers.flat(map, {12});13report.on('done', function () {14});15report.execute(flat, context);

Using AI Code Generation

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

Using AI Code Generation

1var istanbul = require('istanbul');2var collector = new istanbul.Collector();3var reporter = new istanbul.Reporter();4var sync = false;5collector.add({6    'path/to/file.js': {7        s: { 1: 0, 2: 1, 3: 0 },8        b: { 1: [0, 1], 2: [1, 0] },9        f: { 1: 0, 2: 1 },10        fnMap: { 1: { name: 'bar', line: 2, loc: { start: { line: 2, column: 4 }, end: { line: 2, column: 7 } } }, 2: { name: '(anonymous_1)', line: 1, loc: { start: { line: 1, column: 15 }, end: { line: 1, column: 18 } } } },11        statementMap: { 1: { start: { line: 1, column: 0 }, end: { line: 1, column: 18 } }, 2: { start: { line: 2, column: 0 }, end: { line: 2, column: 11 } }, 3: { start: { line: 3, column: 0 }, end: { line: 3, column: 2 } } },12        branchMap: { 1: { line: 1, type: 'binary-expr', locations: [{ start: { line: 1, column: 15 }, end: { line: 1, column: 16 } }, { start: { line: 1, column: 20 }, end: { line: 1, column: 21 } }] }, 2: { line: 2, type: 'if', locations: [{ start: { line: 2, column: 4 }, end: { line: 2, column: 4 } }, { start: { line: 2, column: 4 }, end: { line: 2, column: 4 } }] } }13    }14});15reporter.add('text');16reporter.addAll([ 'lcov', 'json' ]);17reporter.write(collector, sync, function

Using AI Code Generation

1const libCoverage = require('istanbul-lib-coverage');2const map = libCoverage.createCoverageMap();3map.addFileCoverage(4    {5        "statementMap": {6            "0": {7                "start": {8                },9                "end": {10                }11            },12            "1": {13                "start": {14                },15                "end": {16                }17            }18        },19        "fnMap": {20            "0": {21                "name": "(anonymous_0)",22                "decl": {23                    "start": {24                    },25                    "end": {26                    }27                },28                "loc": {29                    "start": {30                    },31                    "end": {32                    }33                },34            },35            "1": {36                "name": "(anonymous_1)",37                "decl": {38                    "start": {39                    },40                    "end": {41                    }42                },43                "loc": {44                    "start": {45                    },46                    "end": {47                    }48                },49            }50        },51        "branchMap": {52            "0": {53                "loc": {54                    "start": {55                    },56                    "end": {57                    }58                },59                "locations": [{60                        "start": {61                        },62                        "end": {

Using AI Code Generation

1const istanbul = require('istanbul-lib-report');2const context = istanbul.createContext();3const tree = istanbul.utils.summarizeCoverage(coverageMap);4const report = istanbul.create('text', {});5report.execute(context, tree);6const branchTotals = context.computeBranchTotals(tree);7### `createContext(opts)`8- `coverageMap` - An optional [istanbul-lib-coverage](

Using AI Code Generation

1const istanbulLibReport = require('istanbul-lib-report');2const istanbulLibCoverage = require('istanbul-lib-coverage');3const istanbulReports = require('istanbul-reports');4const fs = require('fs');5const path = require('path');6const reportDir = 'coverage';7const reportJson = require(path.join(reportDir, 'coverage-final.json'));8const coverageMap = istanbulLibCoverage.createCoverageMap(reportJson);9const context = istanbulLibReport.createContext({10  watermarks: istanbulReports.getWatermarks()11});12const tree = istanbulLibReport.summarizers.pkg(coverageMap);13const report = istanbulLibReport.create('json', {});14report.on('done', function() {15  const reportJson = report.getFinalReport();16  const files = Object.keys(reportJson.files);17  const fileBranchTotals = files.map(file => {18    const fileReport = reportJson.files[file];19      ? Object.keys(fileReport.branchMap).map(branchKey => {20          const branch = fileReport.branchMap[branchKey];21          const branchCoverage = fileReport.b[branchKey];22          const branchTotal = branchCoverage.length;23          const branchCovered = branchCoverage.filter(branch => branch === 1)24            .length;25          return {26          };27        })28      : [];29    return {30    };31  });32  console.log(JSON.stringify(fileBranchTotals, null, 2));33});34report.execute(context, tree);

Using AI Code Generation

1const libCoverage = require('istanbul-lib-coverage');2const path = require('path');3const map = libCoverage.createCoverageMap();4const fileCoverage = map.addFileCoverage({5    path: path.resolve('test.js'),6    statementMap: {7        0: {8            start: {9            },10            end: {11            }12        },13        1: {14            start: {15            },16            end: {17            }18        }19    },20    fnMap: {21        0: {22            decl: {23                start: {24                },25                end: {26                }27            },28            loc: {29                start: {30                },31                end: {32                }33            },34        }35    },36    branchMap: {37        0: {38            locations: [{39                start: {40                },41                end: {42                }43            }, {44                start: {45                },46                end: {47                }48            }]49        }50    },51    s: {52    },53    b: {54    },55    f: {56    },57    fnMap: {58        0: {59            decl: {60                start: {61                },62                end: {63                }64            },65            loc: {66                start: {67                },

Using AI Code Generation

1const path = require('path');2const libCoverage = require('istanbul-lib-coverage');3const libReport = require('istanbul-lib-report');4const reports = require('istanbul-reports');5const fs = require('fs');6const map = libCoverage.createCoverageMap();7const coverage = JSON.parse(fs.readFileSync(path.join(__dirname, 'coverage/coverage-final.json'), 'utf8'));8map.merge(coverage);9const context = libReport.createContext({10    dir: path.join(__dirname, 'coverage'),11    watermarks: { statements: [50, 80], functions: [50, 80], branches: [50, 80], lines: [50, 80] }12});13const tree = libReport.summarizers.pkg(map);14const report = reports.create('text', {15});16report.execute(tree, context);17const path = require('path');18const libCoverage = require('istanbul-lib-coverage');19const libReport = require('istanbul-lib-report');20const reports = require('istanbul-reports');21const fs = require('fs');22const map = libCoverage.createCoverageMap();23const coverage = JSON.parse(fs.readFileSync(path.join(__dirname, 'coverage/coverage-final.json'), 'utf8'));24map.merge(coverage);25const context = libReport.createContext({26    dir: path.join(__dirname, 'coverage'),27    watermarks: { statements: [50, 80], functions: [50, 80], branches: [50, 80], lines: [50, 80] }28});29const tree = libReport.summarizers.pkg(map);30const report = reports.create('text', {31});32report.execute(tree, context);33const path = require('path');34const libCoverage = require('istanbul-lib-coverage');35const libReport = require('istanbul-lib-report');36const reports = require('istanbul-reports');

Using AI Code Generation

1var fs = require('fs');2var libCoverage = require('istanbul-lib-coverage');3var map = libCoverage.createCoverageMap();4var mapData = fs.readFileSync('coverage/coverage-final.json', 'utf8');5map.data = JSON.parse(mapData);6var branchCoverage = map.computeBranchTotals('all');7fs.writeFileSync('coverage/branchCoverage.json', JSON.stringify(branchCoverage));

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.