| 1 | package daemon |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "testing" |
| 7 | "time" |
| 8 | ) |
| 9 | |
| 10 | func TestMaintenanceWaitsForPublishAndResumesOperations(t *testing.T) { |
| 11 | _, tenant := testTenant(t) |
| 12 | ctx := context.Background() |
| 13 | |
| 14 | // A publish holds the normal operation admission slot while the backup |
| 15 | // requests exclusive maintenance. |
| 16 | publishCtx, releasePublish, err := tenant.beginOperation(ctx) |
| 17 | if err != nil { |
| 18 | t.Fatal(err) |
| 19 | } |
| 20 | if publishCtx == nil { |
| 21 | t.Fatal("publish context is nil" ) |
| 22 | } |
| 23 | maintenanceReady := make(chan struct{}) |
| 24 | maintenanceDone := make(chan error, 1) |
| 25 | go func() { |
| 26 | close(maintenanceReady) |
| 27 | _, release, err := tenant.beginMaintenance(ctx) |
| 28 | if err != nil { |
| 29 | maintenanceDone <- err |
| 30 | return |
| 31 | } |
| 32 | maintenanceDone <- nil |
| 33 | release() |
| 34 | }() |
| 35 | <-maintenanceReady |
| 36 | |
| 37 | select { |
| 38 | case err := <-maintenanceDone: |
| 39 | t.Fatalf("maintenance passed active publish: %v" , err) |
| 40 | case <-time.After(50 * time.Millisecond): |
| 41 | } |
| 42 | select { |
| 43 | case <-maintenanceDone: |
| 44 | t.Fatal("maintenance completed before active publish was released" ) |
| 45 | default: |
| 46 | } |
| 47 | if _, release, err := tenant.beginOperation(ctx); !errors.Is(err, ErrMaintenance) { |
| 48 | if release != nil { |
| 49 | release() |
| 50 | } |
| 51 | t.Fatalf("operation during maintenance = %v, want %v" , err, ErrMaintenance) |
| 52 | } |
| 53 | |
| 54 | releasePublish() |
| 55 | select { |
| 56 | case err := <-maintenanceDone: |
| 57 | if err != nil { |
| 58 | t.Fatal(err) |
| 59 | } |
| 60 | case <-time.After(time.Second): |
| 61 | t.Fatal("maintenance did not start after publish completed" ) |
| 62 | } |
| 63 | |
| 64 | // The maintenance release is performed by the goroutine after it signals |
| 65 | // completion, so the next operation should be admitted shortly afterward. |
| 66 | deadline := time.Now().Add(time.Second) |
| 67 | for { |
| 68 | _, release, err := tenant.beginOperation(ctx) |
| 69 | if err == nil { |
| 70 | release() |
| 71 | return |
| 72 | } |
| 73 | if !errors.Is(err, ErrMaintenance) { |
| 74 | t.Fatalf("operation after maintenance = %v" , err) |
| 75 | } |
| 76 | if time.Now().After(deadline) { |
| 77 | t.Fatal("normal operations did not resume" ) |
| 78 | } |
| 79 | time.Sleep(time.Millisecond) |
| 80 | } |
| 81 | } |