I am testing some detailed input handling and the tests work as expected from both the editor and the command-line without the --headless option. However, these fail when headless, probably for the reasons explained in comments in godotengine/godot#73557 .

Accepting this engine behavior, I'm now looking for:

1. GUT's recommended way to skip tests--I didn't find anything in doc
2. A (straightforward) way to detect headless mode to trigger the skips

I found @russmatney's comment in #360 useful for point 2, but was hoping in the meantime someone had found a better way.

TIA!