See project documentation here: https://github.com/Codeception/VisualCeption
composer require "erolatex/wbisualception:*" --dev
If you use mobile emulation with custom pixelRatio option you need to define pixelRatio for VisualCeption as well:
acceptance.suite.yml
modules:
enabled:
- WebDriver:
capabilities:
...
chromeOptions:
...
mobileEmulation:
deviceMetrics:
height: 812
width: 375
pixelRatio: 3.0
Just add pixelRatio option
modules:
enabled:
- VisualCeption:
maximumDeviation: 0.05 # deviation in percent
saveCurrentImageIfFailure: false # if true, VisualCeption saves the current
pixelRatio: 3.0 # pixel ratio
If you want to change png compression level of all screenshots just add compressionLevel option:
modules:
enabled:
compressionLevel: 0 # compression for png images 0-9 ( default:0 )