Use a single environment variable for everything:
- select the ATContext implementation
- select the test ATContext
- disable ATContext entirely
We use the same pattern as GSK_RENDERER, GTK_DEBUG, etc.
The documentation needs to be updated to include the environment
variable.
The tests in subdirectories of testsuite/css were
using an environment defined in the parent directory,
causing them to not find their test data. Give each
test directory its own environment.
This was testing something that shouldn't be possible
anyway: Adding more than one child to a bin. With the
bin removal, this now just overrides the child so
only one child is left in the end.
Just remove the test.
This makes meson actually parse the individual test
results. Most of the time, it does not make a difference,
but one case where it does is when all the individual
tests of a binary are skipped, meson will mark the
test as skipped.
This adds a GDK_DEBUG=default-settings flag which disables reads
from xsettings and Xft resources, and enables this for the testsuite.
This is one less way to get different testresults depending on the
environment. In particular, it was failing the css tests for me
due to getting the wrong font size because i have a different dpi.
Instead of just doing radical change matching on the node itself, also
consider the parent nodes via the bloom filter.
This means a radical change is now also one where the parent
name/id/classes change, but since that's considered a radical change on
the parent already, those things are slow anyway.
Improves the benchmark times for CSS validation during backdrop
transitions in widget-factory from 45ms to 35ms on my machine.
:not() selectors cannot be radical because the bloomfilter only knows if
a value is set in any of the nodes, but cannot determine the opposite
(if a value is not set in at least one node), but that would be required
for:not() selectors.
However, this is very unlikely to happen in the real world, so it's not
worth optimizing.
Unfortunately, change tracking could know this, so by excluding the
:not() selectors from radical changes, the change tracking will now pick
them up. If that turns out to be a performance problem, we need to add a
special category for radical not filters, so change tracking and bloom
filters can deal with them.
The testcase demonstrating the problem in widget-factory has been
extrated and added.
Some of these test cases involve :not, and thus are affected
by our now correct handling of it for change computation.
All of them are affected by the window now being visible.
Add various tests for the change flag computation that
we do in the css selector tree.
test1: Just test the basic machinery of this test
test2: Trigger every change flag at least once
test3: Test that multiple states combine as expected
test4: Test negations (known to produce wrong results)
test5: Test a complex selector (not producing the expected
output atm)
widget-factory.ui:
The real thing: widget-factory+Adwaita. Note that
this expedts to be run with GSETTINGS_BACKEND=memory
Note that test4 checks the wrong results that we currently
produce for selectors involving :not. It will have to be
updated when we fix the handling of :not. The widget-factory.ui
testcase will certainly also be affected.
