Deployment target not derived correctly for tuist test

[fortmarek]

Describe the bug

As describe here:

I was using the fixture ios_app_with_tests which doesn't leverage deploymentTarget property which the test service relies on to determine the minimum simulator version. Had to update the fixture to leverage it for the App and UI Tests targets to get the tests running. I locally have a 13.5 simulator available which is was defaulting to, but when a version isn't specified the minimum deployment target is the latest version (in my case 14.4).

It seems that the default platform for tests is not derived correctly when not specified in the manifest itself.

We should use the same default as tuist does when deploymentTarget is nil.

[leszko11]

Hey @fortmarek 👋

I would be happy to take a look, but I'm not sure what is the default in this case?

[fortmarek]

Hey @leszko11 👋

I think it might be set somewhere in Xcodeproj, you'd need to do some digging to find where it is actually specified. The deployment target can be nil, so the easiest way to get to the bottom of this is to take a fixture that doesn't have a deployment target (or update ios_app_with_tests not to have it) and see what gets generated. You run tuist through Xcode and step through what's happening.

Let me know if you need additional support.