| 1 | package hostops |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "testing" |
| 7 | |
| 8 | "github.com/carlosframework/platform/internal/release" |
| 9 | ) |
| 10 | |
| 11 | func TestMutationBoundaryRefusesEveryWriteWithoutAuthority(t *testing.T) { |
| 12 | ctx := t.Context() |
| 13 | raw := release.NewDirStore(t.TempDir()) |
| 14 | key := "apps/bab/demo/deleted.json" |
| 15 | tag, err := raw.Put(ctx, key, []byte("old"), "") |
| 16 | if err != nil { |
| 17 | t.Fatal(err) |
| 18 | } |
| 19 | calls := 0 |
| 20 | guarded, err := NewMutationBoundary(true, raw, func(context.Context, MutationTarget) error { calls++; return ErrPending }) |
| 21 | if err != nil { |
| 22 | t.Fatal(err) |
| 23 | } |
| 24 | if _, err = guarded.Put(ctx, key, []byte("new"), tag); !errors.Is(err, ErrPending) { |
| 25 | t.Fatal(err) |
| 26 | } |
| 27 | if err = guarded.Delete(ctx, key); !errors.Is(err, ErrPending) { |
| 28 | t.Fatal(err) |
| 29 | } |
| 30 | if err = release.DeleteIfMatch(ctx, guarded, key, tag); !errors.Is(err, ErrPending) { |
| 31 | t.Fatal(err) |
| 32 | } |
| 33 | if err = guarded.Delete(ctx, "apps/bab/demo/absent.json"); !errors.Is(err, ErrPending) { |
| 34 | t.Fatal(err) |
| 35 | } |
| 36 | if calls != 4 { |
| 37 | t.Fatalf("only %d writes reached the boundary", calls) |
| 38 | } |
| 39 | body, after, err := raw.Get(ctx, key) |
| 40 | if err != nil || string(body) != "old" || after != tag { |
| 41 | t.Fatalf("refused write changed storage: %q %q %v", body, after, err) |
| 42 | } |
| 43 | } |
| 44 | func TestMutationBoundaryDeleteCannotEraseSuccessor(t *testing.T) { |
| 45 | ctx := t.Context() |
| 46 | raw := release.NewDirStore(t.TempDir()) |
| 47 | key := "domains/one.example.json" |
| 48 | tag, err := raw.Put(ctx, key, []byte("old"), "") |
| 49 | if err != nil { |
| 50 | t.Fatal(err) |
| 51 | } |
| 52 | guarded, err := NewMutationBoundary(true, raw, func(_ context.Context, m MutationTarget) error { |
| 53 | if string(m.Before) != "old" || m.ETag != tag { |
| 54 | t.Fatal("not the inspected incarnation") |
| 55 | } |
| 56 | _, e := raw.Put(ctx, key, []byte("successor"), tag) |
| 57 | return e |
| 58 | }) |
| 59 | if err != nil { |
| 60 | t.Fatal(err) |
| 61 | } |
| 62 | if err = guarded.Delete(ctx, key); !errors.Is(err, release.ErrCASConflict) { |
| 63 | t.Fatalf("successor delete: %v", err) |
| 64 | } |
| 65 | body, _, err := raw.Get(ctx, key) |
| 66 | if err != nil || string(body) != "successor" { |
| 67 | t.Fatalf("successor: %q %v", body, err) |
| 68 | } |
| 69 | } |
| 70 | func TestMutationBoundaryDisabledIsOriginalHandle(t *testing.T) { |
| 71 | raw := release.NewDirStore(t.TempDir()) |
| 72 | s, err := NewMutationBoundary(false, raw, func(context.Context, MutationTarget) error { t.Fatal("flag-off check"); return nil }) |
| 73 | if err != nil || s != raw { |
| 74 | t.Fatal("flag-off was wrapped") |
| 75 | } |
| 76 | if _, err = NewMutationBoundary(true, raw, nil); !errors.Is(err, ErrContract) { |
| 77 | t.Fatal("enabled without production authority") |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | func TestBoundaryForwardsReadExtensions(t *testing.T) { |
| 82 | ctx := t.Context() |
| 83 | raw := release.NewDirStore(t.TempDir()) |
| 84 | const key = "apps/bab/demo/a.json" |
| 85 | if _, err := raw.Put(ctx, key, []byte("a"), ""); err != nil { |
| 86 | t.Fatal(err) |
| 87 | } |
| 88 | // The production chain: boundary over the record store over the bucket. |
| 89 | records, err := NewConditionalRecordStore(raw, make([]byte, 32)) |
| 90 | if err != nil { |
| 91 | t.Fatal(err) |
| 92 | } |
| 93 | guarded, err := NewMutationBoundary(true, records, func(context.Context, MutationTarget) error { return nil }) |
| 94 | if err != nil { |
| 95 | t.Fatal(err) |
| 96 | } |
| 97 | cg, ok := guarded.(release.ConditionalGetter) |
| 98 | if !ok { |
| 99 | t.Fatal("boundary hides ConditionalGetter") |
| 100 | } |
| 101 | el, ok := guarded.(release.ETagLister) |
| 102 | if !ok { |
| 103 | t.Fatal("boundary hides ETagLister") |
| 104 | } |
| 105 | body, e, changed, err := cg.GetIfChanged(ctx, key, "") |
| 106 | if err != nil || !changed || string(body) != "a" { |
| 107 | t.Fatalf("GetIfChanged: %q %v %v", body, changed, err) |
| 108 | } |
| 109 | if _, _, changed, err = cg.GetIfChanged(ctx, key, e); err != nil || changed { |
| 110 | t.Fatalf("unchanged: %v %v", changed, err) |
| 111 | } |
| 112 | got, err := el.ListETags(ctx, "apps/") |
| 113 | if err != nil || len(got) != 1 || got[0].Key != key || got[0].ETag != e { |
| 114 | t.Fatalf("ListETags: %v %v", got, err) |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | // bareStore has none of the optional extensions. |
| 119 | type bareStore struct{ release.Store } |
| 120 | |
| 121 | func TestBoundaryWithoutReadExtensionsIsContractError(t *testing.T) { |
| 122 | ctx := t.Context() |
| 123 | guarded, err := NewMutationBoundary(true, bareStore{release.NewDirStore(t.TempDir())}, func(context.Context, MutationTarget) error { return nil }) |
| 124 | if err != nil { |
| 125 | t.Fatal(err) |
| 126 | } |
| 127 | if _, _, _, err = guarded.(release.ConditionalGetter).GetIfChanged(ctx, "apps/bab/demo/a.json", ""); !errors.Is(err, ErrContract) { |
| 128 | t.Fatalf("GetIfChanged: %v", err) |
| 129 | } |
| 130 | if _, err = guarded.(release.ETagLister).ListETags(ctx, "apps/"); !errors.Is(err, ErrContract) { |
| 131 | t.Fatalf("ListETags: %v", err) |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | func TestRecordStoreWithoutReadExtensionsIsContractError(t *testing.T) { |
| 136 | ctx := t.Context() |
| 137 | records, err := NewConditionalRecordStore(bareStore{release.NewDirStore(t.TempDir())}, make([]byte, 32)) |
| 138 | if err != nil { |
| 139 | t.Fatal(err) |
| 140 | } |
| 141 | if _, _, _, err = records.(release.ConditionalGetter).GetIfChanged(ctx, "apps/bab/demo/a.json", ""); !errors.Is(err, ErrContract) { |
| 142 | t.Fatalf("GetIfChanged: %v", err) |
| 143 | } |
| 144 | if _, err = records.(release.ETagLister).ListETags(ctx, "apps/"); !errors.Is(err, ErrContract) { |
| 145 | t.Fatalf("ListETags: %v", err) |
| 146 | } |
| 147 | } |
| 148 | |
amadan