Android: add unit tests

[glennawatson]

Is your feature request related to a problem? Please describe.
At the moment we don't run the unit tests in the Android platform of the unit tests. We need to run them and run a emulator to run all the tests.

Describe the solution you'd like
That unit tests run through the android emulator

Describe suggestions on how to achieve the feature
Something along the lines of https://docs.microsoft.com/en-us/azure/devops/pipelines/languages/android?view=azure-devops#test-on-the-android-emulator

[Kavignon]

So you want to run the Android test in an emulator with the Asure DevOps pipeline to enhance the CI workflow?

[glennawatson]

I would follow what's in the https://github.com/reactiveui/splat project -- Add a android project for the tests, add a target framework to ReactiveUI.Tests as netstandard2.0, and then derive all run the tests through the android test project.

GitHub

reactiveui/splat

Makes things cross-platform. Contribute to reactiveui/splat development by creating an account on GitHub.

[dpvreony]

the runner in splat is https://github.com/xunit/devices.xunit automation would be tied to xunit/devices.xunit#79

GitHub

xunit/devices.xunit

xUnit.net Runners for Devices. Contribute to xunit/devices.xunit development by creating an account on GitHub.

[glennawatson]

This was added as part of #2201