apex-code-coverage-transformer/lib/handlers/istanbulJson.js

Transform Salesforce Apex code coverage JSONs into other formats accepted by SonarQube, GitHub, GitLab, Azure, Bitbucket, etc.

'use strict';
import { BaseHandler } from './BaseHandler.js';
import { HandlerRegistry } from './HandlerRegistry.js';
/**
 * Handler for generating Istanbul/NYC JSON coverage reports.
 *
 * Istanbul is the most widely-used JavaScript code coverage tool.
 * This format is compatible with NYC, Codecov, and many other tools.
 *
 * Compatible with:
 * - Istanbul/NYC
 * - Codecov
 * - Coveralls
 * - Node.js coverage tools
 *
 * @see https://istanbul.js.org/
 */
export class IstanbulCoverageHandler extends BaseHandler {
    coverageMap = {};
    constructor() {
        super();
    }
    processFile(filePath, fileName, lines) {
        const statementMap = {};
        const s = {};
        const lineCoverage = {};
        for (const [lineNumber, hits] of Object.entries(lines)) {
            const line = Number(lineNumber);
            lineCoverage[lineNumber] = hits;
            statementMap[lineNumber] = {
                start: { line, column: 0 },
                end: { line, column: 0 },
            };
            s[lineNumber] = hits;
        }
        const coverageFile = {
            path: filePath,
            statementMap,
            fnMap: {},
            branchMap: {},
            s,
            f: {},
            b: {},
            l: lineCoverage,
        };
        this.coverageMap[filePath] = coverageFile;
    }
    finalize() {
        // Sort coverage map by file path for deterministic output
        const sortedKeys = Object.keys(this.coverageMap).sort();
        const sortedMap = {};
        for (const key of sortedKeys) {
            sortedMap[key] = this.coverageMap[key];
        }
        return sortedMap;
    }
}
// Self-register this handler
HandlerRegistry.register({
    name: 'json',
    description: 'Istanbul JSON format for Node.js and JavaScript tools',
    fileExtension: '.json',
    handler: () => new IstanbulCoverageHandler(),
    compatibleWith: ['Istanbul/NYC', 'Codecov', 'Coveralls', 'Node.js Tools'],
});
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