imagedir-diff

A library that compares between screenshots and their baselines and outputs their diff. Operates on entire directory

Assumptions

The test reads each image in the baselines directory and finds the correlating one in screenshots.
So if you have a new screenshot without baseline, it will be ignored.
If you have a baseline without a screenshot, it will fail.

Note: supports only png files.

Command Line Usage

imagedir-diff --screenshots tests/images/screenshots --baselines tests/images/baselines --diffs tests/images/diffs

Will print all passed images and all failed images. For example:

{
  "passed": [
    "download.png",
    "logo.png",
    "hello.png"
  ],
  "failed": []
}

Will exit with code 0 if all passed. Otherwise with exit code 1

Library Usage

var imagedirDiff = require('imagedir-diff');
imagedirDiff( {
    diffs: 'tests/images/diffs',
    screenshots: 'tests/images/screenshots',
    baselines: 'tests/images/baselines'
} )

Options

• screenshots - Directory for new screenshots taken. default: tests/images/screenshots
• baselines - Directory for baseline images. default: tests/images/baselines
• diffs - Directory to output diffs. default: tests/images/diffs