How to add property to TestNode after state is chaged to Pass/Failed

[filzrev]

I'm trying to write custom test runner as MTP extension.

I want to append additional property after TestNode state is set to Passed/Failed.
By usingStandardOutputProperty / FileArtifactProperty.

As far as I've confirmed,
Current MTP/TestExplorer behaviors are following.

1. When sending another request with same Uid & Additional properties

It shown as separate results on TestExplorer.

2. When sending another request with same Uid & Additional properties without TestNodeStateProperty

In this case, published message seems to be ignored.

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Is there a way to append additional property to existing TestNode?

Background
I want to append information that are calculated from multiple tests results.
So I want to append data to TestNode on separated timing other than test finished.

[Youssef1313]

Unfortunately, Test Explorer expects all results to be sent together. You can't separate the publishing of a result from the publishing of standard output. Could you delay the publishing to message bus until you have all the information in hand already?

[filzrev]

Unfortunately, Test Explorer expects all results to be sent together. You can't separate the publishing of a result from the publishing of standard output.

Thank you for your confirmation.
If it is not possible with the current TestExplorer/MTP protocol.
Please consider it as one of the Feature Request

Could you delay the publishing to message bus until you have all the information in hand already?

It is one of workaround, though,
When using this approach, It need to keep group of tests state as InProcess until all relating tests are finished.

On my use case, Individual tests take some seconds/minutes.
So it's not undesirable to use this workaround.

Background
I'm trying to write MTP TestAdapter for BenchmarkDotNet (that is commented at dotnet/BenchmarkDotNet#2803)

And I want to to record benchmark results markdown to Stdout or AttachedFile per BenchmarksInType.

This information should be shown on TestExplorer's benchmark parent node.
But it seems currently not available to show this information to parent node (https://github.com/microsoft/testfx/issues/4087)
So it's required to append (or overwrite) information of TestNode.

[Youssef1313]

Please consider it as one of the Feature Request

As a first step, I would consider it as a feature request first in Test Explorer, then in MTP we can adjust/adapt to Test Explorer requirement. Thus, I suggest opening the feature request on https://developercommunity.visualstudio.com/