| 1 | package host |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "github.com/carlosframework/platform/internal/hostguard" |
| 7 | "github.com/carlosframework/platform/internal/stopevidence" |
| 8 | "testing" |
| 9 | ) |
| 10 | |
| 11 | type plan11CompositeKernel struct{ writers, noProcess int } |
| 12 | |
| 13 | func (*plan11CompositeKernel) VerifyStopped(context.Context, hostguard.FenceTarget, StopInventory, DrainAcknowledgement) (StopKernelEvidence, error) { |
| 14 | return StopKernelEvidence{}, nil |
| 15 | } |
| 16 | func (k *plan11CompositeKernel) VerifyWritersStopped(context.Context, hostguard.FenceTarget, StopInventory, StopPeer, []stopevidence.DescriptorHint) (WritersKernelEvidence, error) { |
| 17 | k.writers++ |
| 18 | return WritersKernelEvidence{}, nil |
| 19 | } |
| 20 | func (k *plan11CompositeKernel) VerifyNoProcess(context.Context, hostguard.FenceTarget, StopInventory) (StopKernelEvidence, error) { |
| 21 | k.noProcess++ |
| 22 | return StopKernelEvidence{}, nil |
| 23 | } |
| 24 | |
| 25 | func TestPlan11IsolatedWrapperPreservesRootObservations(t *testing.T) { |
| 26 | f := newLaunchFixture(t, servingOp()) |
| 27 | if _, err := f.root.Serve(t.Context(), f.peer, f.req); err != nil { |
| 28 | t.Fatal(err) |
| 29 | } |
| 30 | if err := f.journal.CloseWriters(t.Context(), f.target); err != nil { |
| 31 | t.Fatal(err) |
| 32 | } |
| 33 | inner := &plan11CompositeKernel{} |
| 34 | k := claimUnitStopKernel{Inner: inner, Journal: f.journal, Units: f.units} |
| 35 | writers, ok := any(k).(stopWritersKernel) |
| 36 | if !ok { |
| 37 | t.Fatal("isolated wrapper hides writers-stopped observation") |
| 38 | } |
| 39 | zero, ok := any(k).(stopNoProcessKernel) |
| 40 | if !ok { |
| 41 | t.Fatal("isolated wrapper hides session-zero observation") |
| 42 | } |
| 43 | f.units.goneErr = errors.New("unit is active") |
| 44 | if _, err := writers.VerifyWritersStopped(t.Context(), f.target, StopInventory{}, f.peer, nil); err == nil || inner.writers != 0 { |
| 45 | t.Fatal("active isolated writer passed observation") |
| 46 | } |
| 47 | target := f.target |
| 48 | target.Session = 0 |
| 49 | if _, err := zero.VerifyNoProcess(t.Context(), target, StopInventory{}); err == nil || inner.noProcess != 0 { |
| 50 | t.Fatal("active isolated unit passed session-zero observation") |
| 51 | } |
| 52 | f.units.goneErr = nil |
| 53 | if _, err := writers.VerifyWritersStopped(t.Context(), f.target, StopInventory{}, f.peer, nil); err != nil || inner.writers != 1 { |
| 54 | t.Fatalf("writers forwarding: %v %d", err, inner.writers) |
| 55 | } |
| 56 | if _, err := zero.VerifyNoProcess(t.Context(), target, StopInventory{}); err != nil || inner.noProcess != 1 { |
| 57 | t.Fatalf("session-zero forwarding: %v %d", err, inner.noProcess) |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | func TestPlan11WritersWitnessDoesNotShareCachedSlices(t *testing.T) { |
| 62 | f := newWritersFixture(t) |
| 63 | first, err := f.attempt.StopWriters(t.Context()) |
| 64 | if err != nil { |
| 65 | t.Fatal(err) |
| 66 | } |
| 67 | expected := first.DBPaths[0] |
| 68 | first.DBPaths[0] = "forged.db" |
| 69 | next, err := f.attempt.StopWriters(t.Context()) |
| 70 | if err != nil { |
| 71 | t.Fatal(err) |
| 72 | } |
| 73 | if next.DBPaths[0] != expected { |
| 74 | t.Fatal("caller changed the cached session witness") |
| 75 | } |
| 76 | } |
| 77 | |
amadan