Ubuntu CI Tests do not appear to be running

[JustinGrote]

Prerequisites

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Summary

Ubuntu is completing 5 minutes before the others and looking at the output pane it does not appear that tests are running.

Proposed Design

No response

[andyleejordan]

That's correct, the VS Code test suite doesn't support being run on Linux so it's skipped. If that's changed...let me know.

[JustinGrote]

@andschwa pretty sure it has if you add xvfb to your azure pipeline it will now work
https://github.com/microsoft/vscode-test/blob/addc23e100b744de598220adbbf0761da870eda9/sample/azure-pipelines.yml#L25-L29

[andyleejordan]

...hell yeah, I'll get this fixed then!