| 1 | package daemon |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "encoding/json" |
| 6 | "errors" |
| 7 | "io" |
| 8 | "net/http" |
| 9 | "net/http/httptest" |
| 10 | "strings" |
| 11 | "sync" |
| 12 | "testing" |
| 13 | "time" |
| 14 | |
| 15 | "github.com/FelineStateMachine/tinyrelay/internal/event" |
| 16 | "github.com/FelineStateMachine/tinyrelay/internal/relay" |
| 17 | "github.com/FelineStateMachine/tinyrelay/internal/replication" |
| 18 | ) |
| 19 | |
| 20 | type waitingRequestBody struct { |
| 21 | reader io.Reader |
| 22 | entered chan struct{} |
| 23 | release chan struct{} |
| 24 | once sync.Once |
| 25 | } |
| 26 | |
| 27 | func (b *waitingRequestBody) Read(p []byte) (int, error) { |
| 28 | b.once.Do(func() { close(b.entered); <-b.release }) |
| 29 | return b.reader.Read(p) |
| 30 | } |
| 31 | func (b *waitingRequestBody) Close() error { return nil } |
| 32 | |
| 33 | func TestBackupDrainsActualHTTPPublishAndResumes(t *testing.T) { |
| 34 | _, tenant := testTenant(t) |
| 35 | e := event.Event{Kind: 1, CreatedAt: time.Now().Unix(), Content: "publish at snapshot boundary" } |
| 36 | if err := event.Sign(&e, strings.Repeat("0" , 63)+"1" ); err != nil { |
| 37 | t.Fatal(err) |
| 38 | } |
| 39 | raw, err := json.Marshal(e) |
| 40 | if err != nil { |
| 41 | t.Fatal(err) |
| 42 | } |
| 43 | body := &waitingRequestBody{reader: strings.NewReader(string(raw)), entered: make(chan struct{}), release: make(chan struct{})} |
| 44 | req := httptest.NewRequest(http.MethodPost, "http://relay.test/events" , body) |
| 45 | signRequest(t, req, string(raw)) |
| 46 | res := httptest.NewRecorder() |
| 47 | published := make(chan struct{}) |
| 48 | go func() { tenant.ServeHTTP(res, req); close(published) }() |
| 49 | <-body.entered |
| 50 | type snapshotResult struct { |
| 51 | archive replication.BackupArchive |
| 52 | err error |
| 53 | } |
| 54 | snapshot := make(chan snapshotResult, 1) |
| 55 | go func() { |
| 56 | archive, err := replication.CreateBackupWithProvider(context.Background(), tenant.store, tenant.ReplicationBackupProvider(), time.Now().Unix()) |
| 57 | snapshot <- snapshotResult{archive, err} |
| 58 | }() |
| 59 | deadline := time.After(time.Second) |
| 60 | for { |
| 61 | tenant.maintenance.mu.Lock() |
| 62 | exclusive := tenant.maintenance.maintenance |
| 63 | tenant.maintenance.mu.Unlock() |
| 64 | if exclusive { |
| 65 | break |
| 66 | } |
| 67 | select { |
| 68 | case <-deadline: |
| 69 | close(body.release) |
| 70 | t.Fatal("snapshot did not request maintenance" ) |
| 71 | case <-time.After(time.Millisecond): |
| 72 | } |
| 73 | } |
| 74 | select { |
| 75 | case <-snapshot: |
| 76 | close(body.release) |
| 77 | t.Fatal("snapshot passed in-flight upload" ) |
| 78 | default: |
| 79 | } |
| 80 | if _, err := tenant.Query(context.Background(), []event.Filter{{}}, relay.Session{}); !errors.Is(err, ErrMaintenance) { |
| 81 | close(body.release) |
| 82 | t.Fatalf("new query during snapshot: %v" , err) |
| 83 | } |
| 84 | close(body.release) |
| 85 | <-published |
| 86 | if res.Code != http.StatusOK { |
| 87 | t.Fatalf("in-flight publish %d: %s" , res.Code, res.Body.String()) |
| 88 | } |
| 89 | result := <-snapshot |
| 90 | if result.err != nil { |
| 91 | t.Fatal(result.err) |
| 92 | } |
| 93 | found := false |
| 94 | for _, item := range result.archive.Events { |
| 95 | if item.ID == e.ID { |
| 96 | found = true |
| 97 | } |
| 98 | } |
| 99 | if !found { |
| 100 | t.Fatal("snapshot lost the in-flight committed event" ) |
| 101 | } |
| 102 | if _, err := tenant.Query(context.Background(), []event.Filter{{IDs: []string{e.ID}}}, relay.Session{}); err != nil { |
| 103 | t.Fatalf("query after snapshot: %v" , err) |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | func TestShutdownWaitsForExclusiveMaintenance(t *testing.T) { |
| 108 | var gate maintenanceGate |
| 109 | _, release, err := gate.beginMaintenance(context.Background()) |
| 110 | if err != nil { |
| 111 | t.Fatal(err) |
| 112 | } |
| 113 | gate.markClosing() |
| 114 | idle := make(chan error, 1) |
| 115 | go func() { idle <- gate.waitIdle(context.Background()) }() |
| 116 | select { |
| 117 | case err := <-idle: |
| 118 | t.Fatalf("shutdown passed active maintenance: %v" , err) |
| 119 | case <-time.After(20 * time.Millisecond): |
| 120 | } |
| 121 | release() |
| 122 | select { |
| 123 | case err := <-idle: |
| 124 | if err != nil { |
| 125 | t.Fatal(err) |
| 126 | } |
| 127 | case <-time.After(time.Second): |
| 128 | t.Fatal("shutdown did not resume" ) |
| 129 | } |
| 130 | } |