I'd like to make some suggestions to make the image verification feature better - this is for a WPF test but is likely applicable to webpages.
When the image verification fails, it would be helpful to get better feedback. All I see is that it failed and by what percentage.
I need to know where it failed - what position on the image did it fail at? At least give me an x, y coordinate of the general area of the failure.
I've been getting a lot of failures even for simple tests - and I don't know why. I don't think I should have to adjust the tolerance from the default for these simple tests.
Secondly, when I set up a new image verification, I understand I can either compare the whole image or a sub-selection of the image.
What I want to do is do a whole image verification, but I want to mark off regions that I don't care about. For instance, my image may have a clock in the corner - and something actively moving in another area - in that case I would want to exclude both those regions.
Lastly, I'd like to be able to have the option to have the test runner save an image some place when it's verification fails so I can look at it.