[cairo] Testsuite changes this week

[Bryce W. Harrington]

		  git     git       git     git
		  05/03   05/12   06/09   07/08
-----------------------------------------------
Tests run:        24838   24838   24813   24812
Passed:           15774   15743   16015   16001
Failed:            6476    6505    6226    6224
Expected Failed:    332     332     315     332
Error:                1       0       1       1
Crashed:             32      35      33      31
Untested:          2223    2223    2223    2223
Total:            24838   24838   24813   24812

The test suite triggered OOM killer on the system.  I re-ran it on two
other systems and it triggered OOM killer on those as well (one of the
systems hung completely.)  I'm not sure which test(s) did this though.

Here's the tests that changed results between last month and now:

FAIL -> PASS # degenerate-path.gl-window.argb32
FAIL -> CRASHED # pthread-same-source.svg11.argb32
CRASHED -> FAIL # pthread-same-source.svg11.rgb24
FAIL -> PASS # rel-path.gl-window.argb32
CRASHED -> FAIL # subsurface-modify-child.gl-window.argb32
CRASHED -> FAIL # subsurface-modify-child.gl-window-msaa.argb32

pthread always randomly crashes/fails, and looking at last month, the
gl-window tests seem to do similarly.  Perhaps the gl-window tests are
the ones triggering OOM conditions?  Memory leak somewhere?

Anyway, the good news is that the past month's changes don't appear to
have broken any tests.

Bryce

> Aside from downscale and pthread tests, these three tests also switched
> from pass to fail on these two test runs:
>
> PASS -> FAIL # bitmap-font.gl-window.argb32
> PASS -> FAIL # degenerate-path.gl-window.argb32
> PASS -> FAIL # pass-through.gl-window.argb32
>
> It's interesting all three are with the gl-window backend, but otherwise
> the three tests have little commonality.  It's not evident looking at
> the test code why they'd be failing, and nothing in the git logs pops
> out as directly relating to gl-window.  Anyone else seeing these three
> tests failing now, but passing as of a month ago?
>
> Bryce
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