Function readCoverageJson

test/coverage-test/utils.ts:102–113

(name = './coverage/coverage-final.json')

 * Normalizes paths to keep contents consistent between OS's
 */
export async function readCoverageJson(name = './coverage/coverage-final.json') {
  const jsonReport = JSON.parse(readFileSync(name, 'utf8')) as Record<string, FileCoverageData>

  const normalizedReport: typeof jsonReport = {}

  for (const [filename, coverage] of Object.entries(jsonReport)) {
    coverage.path = normalizeFilename(coverage.path)
    normalizedReport[normalizeFilename(filename)] = coverage
  }

  return normalizedReport
}

/**
 * Read coverage report from file system as Istanbul's `CoverageMap`