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Add internal testing build tag and test
Signed-off-by: Piotr Piotrowski <piotr@synadia.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,215 @@ | ||
| //go:build internal_testing | ||
| // +build internal_testing | ||
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| package test | ||
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| import ( | ||
| "crypto/sha256" | ||
| "encoding/base64" | ||
| "math/rand" | ||
| "strings" | ||
| "sync/atomic" | ||
| "testing" | ||
| "time" | ||
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| "github.com/nats-io/nats.go" | ||
| ) | ||
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| // Need access to internals for loss testing. | ||
| func TestJetStreamOrderedConsumer(t *testing.T) { | ||
| s := RunBasicJetStreamServer() | ||
| defer shutdownJSServerAndRemoveStorage(t, s) | ||
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| nc, js := jsClient(t, s) | ||
| defer nc.Close() | ||
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| var err error | ||
| _, err = js.AddStream(&nats.StreamConfig{ | ||
| Name: "OBJECT", | ||
| Subjects: []string{"a"}, | ||
| Storage: nats.MemoryStorage, | ||
| }) | ||
| if err != nil { | ||
| t.Fatalf("Unexpected error: %v", err) | ||
| } | ||
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| // Will be used as start time to validate proper reset to sequence on retries. | ||
| startTime := time.Now() | ||
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| // Create a sample asset. | ||
| msg := make([]byte, 1024*1024) | ||
| rand.Read(msg) | ||
| msg = []byte(base64.StdEncoding.EncodeToString(msg)) | ||
| mlen, sum := len(msg), sha256.Sum256(msg) | ||
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| // Now send into the stream as chunks. | ||
| const chunkSize = 1024 | ||
| for i := 0; i < mlen; i += chunkSize { | ||
| var chunk []byte | ||
| if mlen-i <= chunkSize { | ||
| chunk = msg[i:] | ||
| } else { | ||
| chunk = msg[i : i+chunkSize] | ||
| } | ||
| msg := nats.NewMsg("a") | ||
| msg.Data = chunk | ||
| msg.Header.Set("data", "true") | ||
| js.PublishMsgAsync(msg) | ||
| } | ||
| js.PublishAsync("a", nil) // eof | ||
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| select { | ||
| case <-js.PublishAsyncComplete(): | ||
| case <-time.After(time.Second): | ||
| t.Fatalf("Did not receive completion signal") | ||
| } | ||
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| // Do some tests on simple misconfigurations first. | ||
| // For ordered delivery a couple of things need to be set properly. | ||
| // Can't be durable or have ack policy that is not ack none or max deliver set. | ||
| _, err = js.SubscribeSync("a", nats.OrderedConsumer(), nats.Durable("dlc")) | ||
| if err == nil || !strings.Contains(err.Error(), "ordered consumer") { | ||
| t.Fatalf("Expected an error, got %v", err) | ||
| } | ||
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| _, err = js.SubscribeSync("a", nats.OrderedConsumer(), nats.AckExplicit()) | ||
| if err == nil || !strings.Contains(err.Error(), "ordered consumer") { | ||
| t.Fatalf("Expected an error, got %v", err) | ||
| } | ||
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| _, err = js.SubscribeSync("a", nats.OrderedConsumer(), nats.MaxDeliver(10)) | ||
| if err == nil || !strings.Contains(err.Error(), "ordered consumer") { | ||
| t.Fatalf("Expected an error, got %v", err) | ||
| } | ||
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| _, err = js.SubscribeSync("a", nats.OrderedConsumer(), nats.DeliverSubject("some.subject")) | ||
| if err == nil || !strings.Contains(err.Error(), "ordered consumer") { | ||
| t.Fatalf("Expected an error, got %v", err) | ||
| } | ||
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| si, err := js.StreamInfo("OBJECT") | ||
| if err != nil { | ||
| t.Fatalf("Unexpected error: %v", err) | ||
| } | ||
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| testConsumer := func() { | ||
| t.Helper() | ||
| var received uint32 | ||
| var rmsg []byte | ||
| done := make(chan bool, 1) | ||
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| cb := func(m *nats.Msg) { | ||
| // Check for eof | ||
| if len(m.Data) == 0 { | ||
| done <- true | ||
| return | ||
| } | ||
| atomic.AddUint32(&received, 1) | ||
| rmsg = append(rmsg, m.Data...) | ||
| } | ||
| // OrderedConsumer does not need HB, it sets it on its own, but for test we override which is ok. | ||
| sub, err := js.Subscribe("a", cb, nats.OrderedConsumer(), nats.IdleHeartbeat(250*time.Millisecond), nats.StartTime(startTime)) | ||
| if err != nil { | ||
| t.Fatalf("Unexpected error: %v", err) | ||
| } | ||
| defer sub.Unsubscribe() | ||
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| select { | ||
| case <-done: | ||
| if rsum := sha256.Sum256(rmsg); rsum != sum { | ||
| t.Fatalf("Objects do not match") | ||
| } | ||
| case <-time.After(5 * time.Second): | ||
| t.Fatalf("Did not receive all chunks, only %d of %d total", atomic.LoadUint32(&received), si.State.Msgs-1) | ||
| } | ||
| } | ||
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| testSyncConsumer := func() { | ||
| t.Helper() | ||
| var received int | ||
| var rmsg []byte | ||
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| // OrderedConsumer does not need HB, it sets it on its own, but for test we override which is ok. | ||
| sub, err := js.SubscribeSync("a", nats.OrderedConsumer(), nats.IdleHeartbeat(250*time.Millisecond), nats.StartTime(startTime)) | ||
| if err != nil { | ||
| t.Fatalf("Unexpected error: %v", err) | ||
| } | ||
| defer sub.Unsubscribe() | ||
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| var done bool | ||
| expires := time.Now().Add(5 * time.Second) | ||
| for time.Now().Before(expires) { | ||
| m, err := sub.NextMsg(time.Second) | ||
| if err != nil { | ||
| t.Fatalf("Unexpected error: %v", err) | ||
| } | ||
| if len(m.Data) == 0 { | ||
| done = true | ||
| break | ||
| } | ||
| received++ | ||
| rmsg = append(rmsg, m.Data...) | ||
| } | ||
| if !done { | ||
| t.Fatalf("Did not receive all chunks, only %d of %d total", received, si.State.Msgs-1) | ||
| } | ||
| if rsum := sha256.Sum256(rmsg); rsum != sum { | ||
| t.Fatalf("Objects do not match") | ||
| } | ||
| } | ||
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| // Now run normal test. | ||
| testConsumer() | ||
| testSyncConsumer() | ||
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| // Now introduce some loss. | ||
| singleLoss := func(m *nats.Msg) *nats.Msg { | ||
| if rand.Intn(100) <= 10 && m.Header.Get("data") != "" { | ||
| nc.RemoveMsgFilter("a") | ||
| return nil | ||
| } | ||
| return m | ||
| } | ||
| nc.AddMsgFilter("a", singleLoss) | ||
| testConsumer() | ||
| nc.AddMsgFilter("a", singleLoss) | ||
| testSyncConsumer() | ||
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| multiLoss := func(m *nats.Msg) *nats.Msg { | ||
| if rand.Intn(100) <= 10 && m.Header.Get("data") != "" { | ||
| return nil | ||
| } | ||
| return m | ||
| } | ||
| nc.AddMsgFilter("a", multiLoss) | ||
| testConsumer() | ||
| testSyncConsumer() | ||
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| firstOnly := func(m *nats.Msg) *nats.Msg { | ||
| if meta, err := m.Metadata(); err == nil { | ||
| if meta.Sequence.Consumer == 1 { | ||
| nc.RemoveMsgFilter("a") | ||
| return nil | ||
| } | ||
| } | ||
| return m | ||
| } | ||
| nc.AddMsgFilter("a", firstOnly) | ||
| testConsumer() | ||
| nc.AddMsgFilter("a", firstOnly) | ||
| testSyncConsumer() | ||
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| lastOnly := func(m *nats.Msg) *nats.Msg { | ||
| if meta, err := m.Metadata(); err == nil { | ||
| if meta.Sequence.Stream >= si.State.LastSeq-1 { | ||
| nc.RemoveMsgFilter("a") | ||
| return nil | ||
| } | ||
| } | ||
| return m | ||
| } | ||
| nc.AddMsgFilter("a", lastOnly) | ||
| testConsumer() | ||
| nc.AddMsgFilter("a", lastOnly) | ||
| testSyncConsumer() | ||
| } |
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