result

func Output ¶ added in v0.5.0

func Output(res Result[string]) string

Output is the value an Ok carries, and empty for an Err.

It exists because a refusal has to be able to show what it refused over. The laboratory reads a failing test command as a killed mutant, so when nothing is mutated that same failure is a red baseline — and a refusal that does not print the command's own output leaves the reader guessing which of a hundred reasons a suite might be red. Measured the hard way: an embedded directory missing from a sandbox produced a refusal that named neither the file nor the pattern, and finding it took four measurements that should have been none.