package store

import "testing"

// R-266 (operator ruling 2026-10-12, S10, `09` §3 decision 205): a box whose root statfs failed sends
// its "/" entry with zeros AND `read_failed: true` (controller v0.308.0). The dashboard's Disk column
// is the hub's one reader of that list; it must say the reading failed, never show the zeros as 0 %.
// An older box sends no field — its entries read as before.
// RED-PROOF: without the read_failed branch in parseDiskSummary this returns "0%/41%".
func TestDiskSummaryShowsAFailedRead(t *testing.T) {
	cases := map[string]string{
		`{"storage":[{"mount":"/","percent":0,"read_failed":true},{"mount":"/mnt/hdd","percent":41.2}]}`: "read failed/41%",
		`{"storage":[{"mount":"/","percent":12.4},{"mount":"/mnt/hdd","percent":41.2}]}`:                 "12%/41%",
		`{"storage":[]}`: "–",
	}
	for in, want := range cases {
		if got := parseDiskSummary(in); got != want {
			t.Errorf("parseDiskSummary(%s) = %q, want %q", in, got, want)
		}
	}
}