Document using EngineDebugger.is_active() to skip tests

[bitwes]

Versions

Godot 4, Godot 3 if EngineDebugger.is_active() or equivalent exists

The Feature

If you have a test that would normally cause the debugger to break on an error, you can skip the test if the debugger is enabled with the following code.

func test_something_when_debugger_disabled():
	if(EngineDebugger.is_active()):
		pending("Test skipped, disable debug to run test")
		return
	...

[bitwes]

I'm not sure if there is a way to run tests through the editor without having debug enabled. The above method works fine when running from the command line/vscode with or without -d flag. Currently GUT uses EditorInterface.play_custom_scene to run tests. This appears to always have the debugger enabled.