[cairo-bugs] [Bug 97400] New: record-neg-extents fails on xlib, different output every time

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97400

            Bug ID: 97400
           Summary: record-neg-extents fails on xlib, different output
                    every time
           Product: cairo
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: xlib backend
          Assignee: chris at chris-wilson.co.uk
          Reporter: darxus at chaosreigns.com
        QA Contact: cairo-bugs at cairographics.org

When running make check with freshly generated references, these are the only
tests currently failing for the xlib target (because they output something
different every run):

$ cat *.log | grep ^TEST: | grep 'xlib ' | grep ' FAIL'
TEST: record-neg-extents-bounded TARGET: xlib FORMAT: argb32 OFFSET: 0 SCALE: 1
SIMILAR: 0 RESULT: FAIL
TEST: record-neg-extents-bounded TARGET: xlib FORMAT: rgb24 OFFSET: 0 SCALE: 1
SIMILAR: 0 RESULT: FAIL
TEST: record-neg-extents-unbounded TARGET: xlib FORMAT: argb32 OFFSET: 0 SCALE:
1 SIMILAR: 0 RESULT: FAIL
TEST: record-neg-extents-unbounded TARGET: xlib FORMAT: rgb24 OFFSET: 0 SCALE:
1 SIMILAR: 0 RESULT: FAIL

Relevant thread: 
https://lists.cairographics.org/archives/cairo/2016-July/027646.html

It appears these tests never worked on xlib (were only tested on image, pdf,
and ps).

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