Bug 168551

Summary: [GTK] Several reftest fail because diff image contains differences but actual and expected images look the same
Product: WebKit Reporter: Carlos Garcia Campos <cgarcia>
Component: WebKitGTKAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: bugs-noreply
Priority: P2 Keywords: Gtk, LayoutTestFailure
Version: WebKit Local Build   
Hardware: Unspecified   
OS: Unspecified   

Description Carlos Garcia Campos 2017-02-18 00:58:17 PST
It's pretty weird, we are generating a diff image that says there are differences, but looking at the actual and reference png images they look exactly the same. It could be a problem with the way we create the results for reftests.

fast/sub-pixel/sub-pixel-composited-layers.html
http/tests/misc/slow-loading-animated-image.html
Comment 1 Carlos Garcia Campos 2017-02-18 01:00:43 PST
This is not the case of tests failing because of one pixel, in this case the diff image shows significant differences