| 1 | package activator |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "os" |
| 7 | "os/exec" |
| 8 | "sync" |
| 9 | "testing" |
| 10 | "time" |
| 11 | ) |
| 12 | |
| 13 | type producerContainment struct { |
| 14 | cmd *exec.Cmd |
| 15 | mu sync.Mutex |
| 16 | closed int |
| 17 | } |
| 18 | |
| 19 | func (c *producerContainment) KillAndEmpty(context.Context) error { |
| 20 | err := c.cmd.Process.Kill() |
| 21 | if errors.Is(err, os.ErrProcessDone) { |
| 22 | return nil |
| 23 | } |
| 24 | return err |
| 25 | } |
| 26 | func (c *producerContainment) Close() error { c.mu.Lock(); defer c.mu.Unlock(); c.closed++; return nil } |
| 27 | func TestClaimProducerCancellationStopsAndJoinsProcess(t *testing.T) { |
| 28 | cmd := exec.Command("sleep", "30") |
| 29 | if err := cmd.Start(); err != nil { |
| 30 | t.Fatal(err) |
| 31 | } |
| 32 | p := newClaimProcess(cmd, nil) |
| 33 | containment := &producerContainment{cmd: cmd} |
| 34 | p.prepared = containment |
| 35 | settled := false |
| 36 | p.settle = func(context.Context) error { settled = true; return nil } |
| 37 | ctx, cancel := context.WithCancel(t.Context()) |
| 38 | finished := make(chan error, 1) |
| 39 | p.bindProducer(RoleProducer{Context: ctx, Finish: func(err error) { finished <- err }}) |
| 40 | cancel() |
| 41 | select { |
| 42 | case err := <-finished: |
| 43 | if err != nil { |
| 44 | t.Fatal(err) |
| 45 | } |
| 46 | case <-time.After(5 * time.Second): |
| 47 | _ = cmd.Process.Kill() |
| 48 | t.Fatal("producer drain did not join") |
| 49 | } |
| 50 | if !p.Exited() || cmd.ProcessState == nil || !settled { |
| 51 | t.Fatal("ack preceded Wait or settlement") |
| 52 | } |
| 53 | if err := p.Stop(t.Context()); err != nil { |
| 54 | t.Fatal(err) |
| 55 | } |
| 56 | containment.mu.Lock() |
| 57 | defer containment.mu.Unlock() |
| 58 | if containment.closed != 1 { |
| 59 | t.Fatalf("containment closed %d times", containment.closed) |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | func TestClaimProducerCancellationRetriesRootSettlement(t *testing.T) { |
| 64 | t.Parallel() |
| 65 | p := &claimProcess{root: true, done: make(chan struct{})} |
| 66 | close(p.done) |
| 67 | var attempts int |
| 68 | p.settle = func(context.Context) error { |
| 69 | attempts++ |
| 70 | if attempts < 3 { |
| 71 | return errors.New("root stop temporarily refused") |
| 72 | } |
| 73 | return nil |
| 74 | } |
| 75 | ctx, cancel := context.WithCancel(t.Context()) |
| 76 | defer cancel() |
| 77 | finished := make(chan error, 1) |
| 78 | p.bindProducer(RoleProducer{Context: ctx, Finish: func(err error) { finished <- err }}) |
| 79 | cancel() |
| 80 | select { |
| 81 | case err := <-finished: |
| 82 | if err != nil || attempts != 3 { |
| 83 | t.Fatalf("completion before root settlement: attempts=%d error=%v", attempts, err) |
| 84 | } |
| 85 | case <-time.After(3 * time.Second): |
| 86 | t.Fatal("producer did not retry root settlement") |
| 87 | } |
| 88 | if err := p.Stop(t.Context()); err != nil || attempts != 3 { |
| 89 | t.Fatalf("settled stop was not idempotent: attempts=%d error=%v", attempts, err) |
| 90 | } |
| 91 | } |
| 92 | |
amadan