Istanbul

Code Coverage is a metric used in software development describing the amount of code that has been tested. The higher it is the better it is.

Istanbul is a toolkit from Yahoo's engineers,created to help developers in testing their code.

Istanbul can be used from a command line or as a programmatic library.

This tool also works with client-side (browsers) and server-side (Node.js) environments.

What is new in this release:

• Added text-lcov report format to emit lcov to console.

What is new in version 0.4.1:

• Added text-lcov report format to emit lcov to console.

What is new in version 0.3.6:

• The `--preload-sources` option is now deprecated and superseded by the `--include-all-sources` option instead. This provides a better coverage representation of the code that has not been included for testing.

What is new in version 0.3.0:

• Change report command line to support multiple reports, add back-compatibility processing with warnings
• Enable `report` command to read report list from config
• Support multiple reports for `cover` and `report` commands
• Support per-report config options in configuration file
• Turn reports into event emitters so they can signal `done`
• Added `Reporter` class to be able to generate multiple reports
• Added a bunch of API docs, refactor README

What is new in version 0.2.16:

• Make YUI links https-always since relative links break local filesystem use-case.

What is new in version 0.2.13:

• Added `--preload-sources` option to `cover` command to make code not required by tests to appear in the coverage report.

What is new in version 0.2.11:

• Allow source map generation.

What is new in version 0.2.10:

• Added flag to handle sigints and dump coverage.

What is new in version 0.2.8:

• Upgrade to Esprima.

What is new in version 0.2.7:

• Upgrade Esprima.
• Misc jshint fixes.

What is new in version 0.2.6:

• Reverted bad commit for tree summarizer.

What is new in version 0.2.4:

• Fixed line-split algo to handle Mac lin separators.
• Updated README for quick intro to ignoring code for coverage.

What is new in version 0.2.2:

• Updated escodegen, handlebars and resolve dependency versions.

What is new in version 0.2.0:

• Added --preserve-comments to instrumenter options.
• Support 'use strict;' in file scope.

What is new in version 0.1.42:

• Embed source regression introduced in v0.1.38. Fixed broken test for this.

Requirements:

• JavaScript enabled on client side
• Node.js (for server side environments)