Exposed fetchMisMatchPercentage

[mlincoln4]

My boss sent you the following email:

We are currently working on a project using the resemble helper and have been trying to find a good way to get the mismatch percentage of a pair of images without triggering a failure. When looking in the codeceptjs-resemblehelper/index.js file I found that there is a function that does exactly that, _fetchMisMatchPercentage(). However, in order to be able to use this function, I have had to remove the underscore from the beginning of the name. Would it be possible to update this so that function can be exposed?
Also a side-note, it seems that in the _compareImages() function, the options only handle boundingBox/ignoredBox and not boundingBoxes/ignoredBoxes:

resemble.outputSettings({
boundingBox: options.boundingBox,
ignoredBox: options.ignoredBox,
…options.outputSettings,
});

Could this also possibly be updated?

---

I have made the small changes in this pull request. Let me know if you have any problems with it. Thanks a lot!

[puneet0191]

Thanks a lot @mlincoln4 I will prepare for 1.9.4 release.

[puneet0191]

@mlincoln4 this change is probably going to impact https://github.com/codeceptjs/codeceptjs-resemblehelper/blob/master/index.js#L379 could you please make sure it works as expected

[puneet0191]

see where we set the boundingBox option,

codeceptjs-resemblehelper/index.js

Line 322 in 1cc3b60

options.boundingBox = await this._getBoundingBox(selector);

[mlincoln4]

Well that is checking the visual difference for an element, in which case I don't think bounding boxes need to be supported since you are already specifying an element for the bounds. I am not sure though. That part isn't as important to me, I just happened to notice the plural ones weren't currently supported.