| 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 fix1WritersScan struct { |
| 12 | stopKernelFunc |
| 13 | scan func() |
| 14 | } |
| 15 | |
| 16 | func (k fix1WritersScan) VerifyWritersStopped(context.Context, hostguard.FenceTarget, StopInventory, StopPeer, []stopevidence.DescriptorHint) (WritersKernelEvidence, error) { |
| 17 | if k.scan != nil { |
| 18 | k.scan() |
| 19 | } |
| 20 | return WritersKernelEvidence{}, nil |
| 21 | } |
| 22 | |
| 23 | func TestPlan11Fix1WritersMustRemainClosed(t *testing.T) { |
| 24 | for _, shape := range []string{"open", "unit-appears", "closed"} { |
| 25 | t.Run(shape, func(t *testing.T) { |
| 26 | f := newLaunchFixture(t, servingOp()) |
| 27 | if shape != "open" { |
| 28 | if err := f.journal.CloseWriters(t.Context(), f.target); err != nil { |
| 29 | t.Fatal(err) |
| 30 | } |
| 31 | } |
| 32 | scans := 0 |
| 33 | k := claimUnitStopKernel{Journal: f.journal, Units: f.units, Inner: fix1WritersScan{scan: func() { |
| 34 | scans++ |
| 35 | if shape == "unit-appears" { |
| 36 | f.units.goneErr = errors.New("unit started during scan") |
| 37 | } |
| 38 | }}} |
| 39 | _, err := k.VerifyWritersStopped(t.Context(), f.target, StopInventory{}, f.peer, nil) |
| 40 | if shape == "closed" { |
| 41 | if err != nil || scans != 1 { |
| 42 | t.Fatalf("closed: %v, scans=%d", err, scans) |
| 43 | } |
| 44 | return |
| 45 | } |
| 46 | if err == nil { |
| 47 | t.Fatal("writers-stopped accepted an open writer boundary") |
| 48 | } |
| 49 | if shape == "open" && scans != 0 { |
| 50 | t.Fatal("scanned before writers closed") |
| 51 | } |
| 52 | }) |
| 53 | } |
| 54 | } |
| 55 | |
amadan