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package kafka
import (
"context"
"log"
"os"
"strconv"
"testing"
"time"
ktesting "github.com/segmentio/kafka-go/testing"
)
func TestClientDeleteOffset(t *testing.T) {
if !ktesting.KafkaIsAtLeast("2.4.0") {
return
}
topic := makeTopic()
client, shutdown := newLocalClientWithTopic(topic, 3)
defer shutdown()
now := time.Now()
const N = 10 * 3
records := make([]Record, 0, N)
for i := 0; i < N; i++ {
records = append(records, Record{
Time: now,
Value: NewBytes([]byte("test-message-" + strconv.Itoa(i))),
})
}
ctx, cancel := context.WithTimeout(context.Background(), time.Second*30)
defer cancel()
res, err := client.Produce(ctx, &ProduceRequest{
Topic: topic,
RequiredAcks: RequireAll,
Records: NewRecordReader(records...),
})
if err != nil {
t.Fatal(err)
}
if res.Error != nil {
t.Error(res.Error)
}
for index, err := range res.RecordErrors {
t.Fatalf("record at index %d produced an error: %v", index, err)
}
ctx, cancel = context.WithTimeout(context.Background(), time.Second*30)
defer cancel()
groupID := makeGroupID()
group, err := NewConsumerGroup(ConsumerGroupConfig{
ID: groupID,
Topics: []string{topic},
Brokers: []string{"localhost:9092"},
HeartbeatInterval: 2 * time.Second,
RebalanceTimeout: 2 * time.Second,
RetentionTime: time.Hour,
Logger: log.New(os.Stdout, "cg-test: ", 0),
})
if err != nil {
t.Fatal(err)
}
gen, err := group.Next(ctx)
if err != nil {
t.Fatal(err)
}
ocr, err := client.OffsetCommit(ctx, &OffsetCommitRequest{
Addr: nil,
GroupID: groupID,
GenerationID: int(gen.ID),
MemberID: gen.MemberID,
Topics: map[string][]OffsetCommit{
topic: {
{Partition: 0, Offset: 10},
{Partition: 1, Offset: 10},
{Partition: 2, Offset: 10},
},
},
})
if err != nil {
t.Fatal(err)
}
group.Close()
resps := ocr.Topics[topic]
if len(resps) != 3 {
t.Fatalf("expected 3 offsetcommitpartition responses; got %d", len(resps))
}
for _, resp := range resps {
if resp.Error != nil {
t.Fatal(resp.Error)
}
}
ofr, err := client.OffsetFetch(ctx, &OffsetFetchRequest{
GroupID: groupID,
Topics: map[string][]int{topic: {0, 1, 2}},
})
if err != nil {
t.Fatal(err)
}
if ofr.Error != nil {
t.Error(res.Error)
}
fetresps := ofr.Topics[topic]
if len(fetresps) != 3 {
t.Fatalf("expected 3 offsetfetchpartition responses; got %d", len(resps))
}
for _, r := range fetresps {
if r.Error != nil {
t.Fatal(r.Error)
}
if r.CommittedOffset != 10 {
t.Fatalf("expected committed offset to be 10; got: %v for partition: %v", r.CommittedOffset, r.Partition)
}
}
// Remove offsets
odr, err := client.OffsetDelete(ctx, &OffsetDeleteRequest{
GroupID: groupID,
Topics: map[string][]int{topic: {0, 1, 2}},
})
if err != nil {
t.Fatal(err)
}
if odr.Error != nil {
t.Error(odr.Error)
}
// Fetch the offsets again
ofr, err = client.OffsetFetch(ctx, &OffsetFetchRequest{
GroupID: groupID,
Topics: map[string][]int{topic: {0, 1, 2}},
})
if err != nil {
t.Fatal(err)
}
if ofr.Error != nil {
t.Error(res.Error)
}
for _, r := range ofr.Topics[topic] {
if r.CommittedOffset != -1 {
t.Fatalf("expected committed offset to be -1; got: %v for partition: %v", r.CommittedOffset, r.Partition)
}
}
}
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