Ryosuke and I discussed this on Monday, and in passing, Ryosuke mentioned that 
he personally finds something like this:

        <test-name>.html
        <test-name>-expected.txt
        <test-name>-expected-<device-type>.txt

more clear than the directory method I proposed. After implementing the above 
approach in the patch uploaded to 
<https://bugs.webkit.org/show_bug.cgi?id=192162 
<https://bugs.webkit.org/show_bug.cgi?id=192162>>, I’m inclined to agree. 
Ryosuke’s approach achieves everything we need for device-type specific 
expected results.

This still doesn’t solve disagreements about how to organize test results when 
a single test is run on multiple device types, but it seems like a step in the 
right direction.

Jonathan

> On Dec 4, 2018, at 5:41 PM, Alexey Proskuryakov <a...@webkit.org> wrote:
> 
> 
> 
>> 4 дек. 2018 г., в 16:43, Ryosuke Niwa <rn...@webkit.org 
>> <mailto:rn...@webkit.org>> написал(а):
>> 
>> 
>> On Tue, Dec 4, 2018 at 12:55 PM Jonathan Bedard <jbed...@apple.com 
>> <mailto:jbed...@apple.com>> wrote:
>> These directories would be along-side tests.
>> 
>> I don't like that platform-specific results are under LayoutTests/platform 
>> and device-specific results are next to the tests. We should stick with 
>> either convention, not mix them up.
>> 
>> If we were to match LayoutTests/platforms, we should probably put it under 
>> LayoutTests/devices, or alternatively inside each platform's test directory. 
>> Alternatively, I'd be fine if we moved platform specific results to those 
>> subdirectories. But having both conventions used throughout would be an 
>> insane mess.
> 
> I'm not ready to have an opinion about which approach is best, however I 
> wanted to make a general comment about unification.
> 
> I think that the attempt to abstract all sorts of differences behind the 
> "port" and "platform" concepts in webkitpy was short sighted. There are many 
> subtle and not so subtle variations of behaviors (OS, OS family, specific OS 
> version, build style, specific API used from the build when there are 
> multiple options). Trying to represent these by god objects is creating a lot 
> more inconsistency and confusion than necessary.
> 
> One good thing about platform directories is that we can specify inheritance 
> order with these in a way that is somewhat meaningful. If we are to have an 
> inheritance order for device types, then continuing with the approach would 
> make sense. But if the rule is exact match, or best match, then storing them 
> as -expected directories makes good sense to me.
> 
> - Alexey
> 

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