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    v8-to-istanbul
    TypeScript icon, indicating that this package has built-in type declarations

    8.0.0 • Public • Published

    v8-to-istanbul

    Build Status Conventional Commits nycrc config on GitHub

    converts from v8 coverage format to istanbul's coverage format.

    Usage

    const v8toIstanbul = require('v8-to-istanbul')
    // the path to the original source-file is required, as its contents are
    // used during the conversion algorithm.
    const converter = v8toIstanbul('./path-to-instrumented-file.js')
    await converter.load() // this is required due to the async source-map dependency.
    // provide an array of coverage information in v8 format.
    converter.applyCoverage([
      {
        "functionName": "",
        "ranges": [
          {
            "startOffset": 0,
            "endOffset": 520,
            "count": 1
          }
        ],
        "isBlockCoverage": true
      },
      // ...
    ])
    // output coverage information in a form that can
    // be consumed by Istanbul.
    console.info(JSON.stringify(converter.toIstanbul()))

    Ignoring Uncovered Lines

    Sometimes you might find yourself wanting to ignore uncovered lines in your application (for example, perhaps you run your tests in Linux, but there's code that only executes on Windows).

    To ignore lines, use the special comment /* c8 ignore next */.

    ignoring the next line

    const myVariable = 99
    /* c8 ignore next */
    if (process.platform === 'win32') console.info('hello world')

    ignoring the next N lines

    const myVariable = 99
    /* c8 ignore next 3 */
    if (process.platform === 'win32') {
      console.info('hello world')
    }

    ignoring all lines until told

    /* c8 ignore start */
    function dontMindMe() {
      // ...
    }
    /* c8 ignore stop */

    ignoring the same line as the comment

    const myVariable = 99
    const os = process.platform === 'darwin' ? 'OSXy' /* c8 ignore next */ : 'Windowsy' 

    Testing

    To execute tests, simply run:

    npm test

    Install

    npm i v8-to-istanbul

    DownloadsWeekly Downloads

    9,354,098

    Version

    8.0.0

    License

    ISC

    Unpacked Size

    41.2 kB

    Total Files

    11

    Last publish

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