Bug 168551 - [GTK] Several reftest fail because diff image contains differences but actual and expected images look the same
Summary: [GTK] Several reftest fail because diff image contains differences but actual...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKitGTK (show other bugs)
Version: WebKit Local Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: Gtk, LayoutTestFailure
Depends on:
Blocks:
 
Reported: 2017-02-18 00:58 PST by Carlos Garcia Campos
Modified: 2017-02-18 01:00 PST (History)
1 user (show)

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
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