pub fn select_fixture(
fixtures: &Path,
op: &str,
params: &[(String, String)],
n: u32,
) -> Option<PathBuf>Expand description
Pick the fixture file under <fixtures>/mock/, most specific first:
<op>__<params>__<n>, <op>__<params>, <op>__<n>, <op>. A numbered family
past its last file repeats that last file.