pub fn descent_case(
document: &Value,
case: &str,
file: &str,
sha256: &str,
) -> Option<(Reference, DescentSetup)>Expand description
The case named case of a recovery-descent fixture, as the oracle’s answers and the inputs it
flew. None if the document has no such case, does not name the run that produced it, or is
not that fixture’s shape.
file is the reference’s path from the repository root and sha256 its hash; both go into the
report, so a hand-edited reference changes the report rather than only the file.