Filtering default traits/categories in the .runsettings file

VS Test Explorer displays all discovered tests by default. In dotnet/runtime some tests are disabled via traits (i.e. ActiveIssue, SkipOnTargetFramework, ConditionalFact, ConditionalTheory). These tests should be filtered out by default inside the VS Test Explorer by introducing a trait filter entry in the .runsettings file. Same applies to when running dotnet test on the CLI, default traits should be recognized in the .runsettings file.

1. The .runsettings file needs a trait filter option, i.e. <TraitFilter>-failing,-IgnoreForCI</TraitFilter>
2. That option needs to be honored by the VS Test Explorer UI.

cc @ManishJayaswal @singhsarab this is part of the the design document that I created a few months ago: https://github.com/ViktorHofer/designs-private/pull/1.

[nohwnd]

@vritant24 there is a PR, I marked you as a reviewer:

# file runsettings.settings
<RunSettings>
    <RunConfiguration>
        <TestCaseFilter>TestCategory=include</TestCaseFilter>
    </RunConfiguration>
</RunSettings>

Here is my project that I used to figure this out, it uses the nugets from the locally built vstest and testfx, let me know if you need any help plugging this into VS:

vstest.console --settings:runsettings.settings "C:\Projects\temp\UnitTestProject29\UnitTestProject29\bin\Debug\netcoreapp3.1\UnitTestProject29.dll"

UnitTestProject29.zip

[ViktorHofer]

Thanks a lot for clarifying.