Block out pty implications for tests
Block out pty implications for tests

mkusz/invoke,frol/invoke,kejbaly2/invoke,frol/invoke,alex/invoke,sophacles/invoke,mattrobenolt/invoke,tyewang/invoke,singingwolfboy/invoke,kejbaly2/invoke,mkusz/invoke,pfmoore/invoke,pfmoore/invoke,pyinvoke/invoke,pyinvoke/invoke,mattrobenolt/invoke