[Windows] Move console redirection to the OS constructor to allow test output.

[bruvzg]

Move console redirection from DisplaySever to the OS constructor.

Fixes #41307

[Xrayez]

This does fix the issue with output, but the colors are gone (maybe doctest's issue as well). 😮

And I have to Ctrl + C to manually exit to previous terminal/process now.

[bruvzg]

This does fix the issue with output, but the colors are gone (maybe doctest's issue as well). 😮

I never had color output on Windows.

And I have to Ctrl + C to manually exit to previous terminal/process now.

Enter should work too (or entering any command), terminal it's not redrawing prompt after app has exited (unlikely it's possible to fix it).

Probably we should have build option as it was originally proposed in godotengine/godot-proposals#1341 as well (but have it disabled by default).

[Xrayez]

I never had color output on Windows.

Example output with colors on VSCode terminal:

.\bin\godot.windows.tools.64.exe --test --success -sf="*test_string.h*"

cmd:

Probably we should have build option as it was originally proposed in godotengine/godot-proposals#1341 as well (but have it disabled by default).

In theory this could be done specifically for tests to define TESTS_ENABLED for Windows sources from env["tests"]. But I'm not sure how it would behave with godot --script "res://test.gd" --no-window (--no-window is only implemented for Windows too), need to test this as well.