DESCRIPTIONEncapsulation of result state - whether that's for a step, scenario, or feature
resultEnum of: "passing", "failing", "pending" or "undefined". "pending" is used if there was any TODO output from a test, and "undefined" for a test that wasn't run, either due to no matching step, or because a previous step failed.
outputThe underlying test-output that contributed to a result.
from_childrenCollates the Result objects you pass in, and returns one that encompasses all of them.
As they may be varied, it runs through them in order of "failing", "undefined", "pending" and "passing" - the first it finds is the overall result. The empty set passes.