| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "database/sql" |
| 5 | "os" |
| 6 | "path/filepath" |
| 7 | "testing" |
| 8 | ) |
| 9 | |
| 10 | // A fleet sweep (`deploy --all --version`) must leave pinned instances alone — |
| 11 | // the pin used to gate only the AUTO-updater, and a manual promote stomped a |
| 12 | // pinned canary while its pin sat intact. sweepSkipsPinned is the decision. |
| 13 | func TestSweepSkipsPinned(t *testing.T) { |
| 14 | dir := t.TempDir() |
| 15 | |
| 16 | // A hibernating host reads prefs straight from its parked DB — build one |
| 17 | // with a pin, exactly as the instance's own settings write would. |
| 18 | prev := instanceDataDir |
| 19 | instanceDataDir = dir |
| 20 | defer func() { instanceDataDir = prev }() |
| 21 | |
| 22 | mkDB := func(host, pin string) { |
| 23 | db, err := sql.Open("sqlite", filepath.Join(dir, host+".db")) |
| 24 | if err != nil { |
| 25 | t.Fatal(err) |
| 26 | } |
| 27 | defer db.Close() |
| 28 | if _, err := db.Exec("CREATE TABLE config (key TEXT PRIMARY KEY, value TEXT)"); err != nil { |
| 29 | t.Fatal(err) |
| 30 | } |
| 31 | if pin != "" { |
| 32 | if _, err := db.Exec("INSERT INTO config VALUES('update_pin', ?)", pin); err != nil { |
| 33 | t.Fatal(err) |
| 34 | } |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | // Hibernating + pinned to something else → skipped. |
| 39 | mkDB("pinned.example", "aaaa111") |
| 40 | rt := &Route{Host: "pinned.example", Hibernate: true} |
| 41 | if skip, why := sweepSkipsPinned(rt, "bbbb222"); !skip || why == "" { |
| 42 | t.Fatalf("pinned canary must be skipped by the sweep, got skip=%v why=%q", skip, why) |
| 43 | } |
| 44 | // Pinned to the sweep's own target → deploy (harmless repoint/no-op). |
| 45 | if skip, _ := sweepSkipsPinned(rt, "aaaa111"); skip { |
| 46 | t.Fatal("a host pinned to the sweep's target version should deploy") |
| 47 | } |
| 48 | |
| 49 | // Hibernating, no pin → deploys. |
| 50 | mkDB("plain.example", "") |
| 51 | rt2 := &Route{Host: "plain.example", Hibernate: true} |
| 52 | if skip, _ := sweepSkipsPinned(rt2, "bbbb222"); skip { |
| 53 | t.Fatal("an unpinned host must not be skipped") |
| 54 | } |
| 55 | |
| 56 | // Hibernating with an UNREADABLE parked DB fails closed (the updater's |
| 57 | // rule): the pin may live only in the copy we can't read. |
| 58 | rt3 := &Route{Host: "missing.example", Hibernate: true} |
| 59 | if skip, why := sweepSkipsPinned(rt3, "bbbb222"); !skip || why == "" { |
| 60 | t.Fatalf("unreadable hibernating prefs must fail closed, got skip=%v why=%q", skip, why) |
| 61 | } |
| 62 | |
| 63 | // A RUNNING host whose socket is dead is probably crashed — the sweep is |
| 64 | // its rescue, so it deploys anyway (with a note, not silence). |
| 65 | rt4 := &Route{Host: "down.example", Socket: filepath.Join(dir, "no-such.sock")} |
| 66 | if skip, why := sweepSkipsPinned(rt4, "bbbb222"); skip || why == "" { |
| 67 | t.Fatalf("a dead-socket running host should deploy with a note, got skip=%v why=%q", skip, why) |
| 68 | } |
| 69 | |
| 70 | _ = os.Remove(filepath.Join(dir, "pinned.example.db")) |
| 71 | } |
| 72 | |
amadan