| 1 | package registry |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "path/filepath" |
| 7 | "testing" |
| 8 | ) |
| 9 | |
| 10 | func TestClaimRowsArchiveBeforeDeleteAndReplayPreservesSuccessor(t *testing.T) { |
| 11 | t.Setenv("CARLOS_HOST_CLAIM", "1") |
| 12 | ctx := context.Background() |
| 13 | path := filepath.Join(t.TempDir(), "registry.db") |
| 14 | r, err := Open(path) |
| 15 | if err != nil { |
| 16 | t.Fatal(err) |
| 17 | } |
| 18 | owner := ClaimOwnership{"inc", 7, "installation-7", "route-7"} |
| 19 | route := Route{Host: "shop.example", App: "app", ClaimOwnership: owner} |
| 20 | if err = r.Upsert(route); err != nil { |
| 21 | t.Fatal(err) |
| 22 | } |
| 23 | if err = r.UpsertTimer(Timer{Host: route.Host, Name: "daily", Kind: "cron", Spec: "0 0 * * *", NextAt: 1}); err != nil { |
| 24 | t.Fatal(err) |
| 25 | } |
| 26 | timer, err := r.GetTimer(route.Host, "daily") |
| 27 | if err != nil { |
| 28 | t.Fatal(err) |
| 29 | } |
| 30 | if timer.ClaimOwner != owner.ClaimOwner || timer.ClaimRowID != timer.Registration { |
| 31 | t.Fatalf("timer ownership = %+v", timer) |
| 32 | } |
| 33 | targets := []ClaimRow{{Kind: "route", Host: route.Host, Ownership: owner}, {Kind: "timer", Host: route.Host, Name: timer.Name, Registration: timer.Registration, Ownership: timer.ClaimOwnership}} |
| 34 | crash := errors.New("archive fsync failed") |
| 35 | if err = r.RetireClaimRows(ctx, "retire-7", targets, func([]ClaimRowArchive) error { return crash }); !errors.Is(err, crash) { |
| 36 | t.Fatal(err) |
| 37 | } |
| 38 | if rt, e := r.Get(route.Host); e != nil || rt == nil { |
| 39 | t.Fatalf("deleted before archive: %v", e) |
| 40 | } |
| 41 | var archived []ClaimRowArchive |
| 42 | if err = r.RetireClaimRows(ctx, "retire-7", targets, func(a []ClaimRowArchive) error { archived = a; return nil }); err != nil { |
| 43 | t.Fatal(err) |
| 44 | } |
| 45 | if len(archived) != 2 || len(archived[0].Contents) == 0 || len(archived[1].Contents) == 0 { |
| 46 | t.Fatal("incomplete archive") |
| 47 | } |
| 48 | if err = r.Close(); err != nil { |
| 49 | t.Fatal(err) |
| 50 | } |
| 51 | r, err = Open(path) |
| 52 | if err != nil { |
| 53 | t.Fatal(err) |
| 54 | } |
| 55 | defer r.Close() |
| 56 | successor := route |
| 57 | successor.ClaimOwnership = ClaimOwnership{"inc", 8, "installation-8", "route-8"} |
| 58 | if err = r.Upsert(successor); err != nil { |
| 59 | t.Fatal(err) |
| 60 | } |
| 61 | if err = r.UpsertTimer(Timer{Host: route.Host, Name: "daily", Kind: "cron", Spec: "0 0 * * *", NextAt: 2}); err != nil { |
| 62 | t.Fatal(err) |
| 63 | } |
| 64 | if err = r.RetireClaimRows(ctx, "retire-7", targets, func(a []ClaimRowArchive) error { |
| 65 | if len(a) != 2 { |
| 66 | t.Fatal("missing replay archive") |
| 67 | } |
| 68 | return nil |
| 69 | }); err != nil { |
| 70 | t.Fatal(err) |
| 71 | } |
| 72 | got, err := r.Get(route.Host) |
| 73 | if err != nil || got.ClaimOwnership != successor.ClaimOwnership { |
| 74 | t.Fatalf("successor removed: %v", err) |
| 75 | } |
| 76 | gotTimer, err := r.GetTimer(route.Host, "daily") |
| 77 | if err != nil || gotTimer.ClaimOwner != successor.ClaimOwner { |
| 78 | t.Fatalf("successor timer removed: %v", err) |
| 79 | } |
| 80 | if err = r.RetireClaimRows(ctx, "another-retirement", targets, func([]ClaimRowArchive) error { return nil }); !errors.Is(err, ErrClaimOwnership) { |
| 81 | t.Fatalf("unknown predecessor disposition accepted: %v", err) |
| 82 | } |
| 83 | } |
| 84 | func TestClaimRowsRefusesChangedRegistrationAtomically(t *testing.T) { |
| 85 | t.Setenv("CARLOS_HOST_CLAIM", "1") |
| 86 | r, err := Open(filepath.Join(t.TempDir(), "registry.db")) |
| 87 | if err != nil { |
| 88 | t.Fatal(err) |
| 89 | } |
| 90 | defer r.Close() |
| 91 | owner := ClaimOwnership{"inc", 1, "owner", "route"} |
| 92 | route := Route{Host: "shop.example", ClaimOwnership: owner} |
| 93 | if err = r.Upsert(route); err != nil { |
| 94 | t.Fatal(err) |
| 95 | } |
| 96 | if err = r.UpsertTimer(Timer{Host: route.Host, Name: "once", Kind: "once", NextAt: 1}); err != nil { |
| 97 | t.Fatal(err) |
| 98 | } |
| 99 | old, err := r.GetTimer(route.Host, "once") |
| 100 | if err != nil { |
| 101 | t.Fatal(err) |
| 102 | } |
| 103 | if err = r.FireTimerNow(route.Host, "once", 2); err != nil { |
| 104 | t.Fatal(err) |
| 105 | } |
| 106 | targets := []ClaimRow{{Kind: "route", Host: route.Host, Ownership: owner}, {Kind: "timer", Host: route.Host, Name: "once", Registration: old.Registration, Ownership: old.ClaimOwnership}} |
| 107 | called := false |
| 108 | err = r.RetireClaimRows(context.Background(), "retire", targets, func([]ClaimRowArchive) error { called = true; return nil }) |
| 109 | if !errors.Is(err, ErrClaimOwnership) || called { |
| 110 | t.Fatalf("stale timer accepted: %v", err) |
| 111 | } |
| 112 | if got, e := r.Get(route.Host); e != nil || got == nil { |
| 113 | t.Fatal("partial route deletion") |
| 114 | } |
| 115 | if err = r.Upsert(Route{Host: route.Host}); !errors.Is(err, ErrClaimOwnership) { |
| 116 | t.Fatalf("unowned writer replaced claim row: %v", err) |
| 117 | } |
| 118 | } |
| 119 | |
amadan