Unify a lot of code related to how to load test assemblies.
This resulted in adding a couple of test assemblies to monotouch-test when executed on macOS (this was a bug), and this also required adapting some of those tests to work correctly on macOS.
Implement a launch timeout for macOS and Mac Catalyst apps where if a certain
environment variable (LAUNCH_SENTINEL_FILE) is set, the app will create that
file at launch. The code launching the test app will wait 10 seconds and check
if the file is there: if it's not, something went wrong, in which case the app
should be terminated and launched again.
This necessitated re-implementing the launch script in C#, since it got quite
complicated to implement in bash.
This fixes an issue with Mac Catalyst apps where something would go wrong
during the app launch and nothing would happen (but the app wouldn't be
deadlocked, it would just sit there, doing nothing).
The TestRuntime.cs and ApplePlatform.cs had to be added to a few test projects
to make this compile, which required a few fixes in these files for building
with legacy Xamarin.Mac.
Fixes https://github.com/xamarin/maccore/issues/2414.
This fixes a problem where the build from the different projects could stomp
on eachother in the obj/bin folders. It's technically possible to make this
work by setting up custom [Base][Intermediate][OutputPath] properties in the
project files, but the simplest solution is to just make sure there's no more
than a single project per directory.
Rolf Bjarne Kvinge
Sebastien Pouliot