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package sarama
import (
"reflect"
"runtime"
"strconv"
"strings"
"testing"
"time"
"github.com/davecgh/go-spew/spew"
)
var recordBatchTestCases = []struct {
name string
batch RecordBatch
encoded []byte
oldGoEncoded []byte // used in case of gzipped content for go versions prior to 1.8
}{
{
name: "empty record",
batch: RecordBatch{
Version: 2,
FirstTimestamp: time.Unix(0, 0),
MaxTimestamp: time.Unix(0, 0),
Records: []*Record{},
},
encoded: []byte{
0, 0, 0, 0, 0, 0, 0, 0, // First Offset
0, 0, 0, 49, // Length
0, 0, 0, 0, // Partition Leader Epoch
2, // Version
89, 95, 183, 221, // CRC
0, 0, // Attributes
0, 0, 0, 0, // Last Offset Delta
0, 0, 0, 0, 0, 0, 0, 0, // First Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Max Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Producer ID
0, 0, // Producer Epoch
0, 0, 0, 0, // First Sequence
0, 0, 0, 0, // Number of Records
},
},
{
name: "control batch",
batch: RecordBatch{
Version: 2,
Control: true,
FirstTimestamp: time.Unix(0, 0),
MaxTimestamp: time.Unix(0, 0),
Records: []*Record{},
},
encoded: []byte{
0, 0, 0, 0, 0, 0, 0, 0, // First Offset
0, 0, 0, 49, // Length
0, 0, 0, 0, // Partition Leader Epoch
2, // Version
81, 46, 67, 217, // CRC
0, 32, // Attributes
0, 0, 0, 0, // Last Offset Delta
0, 0, 0, 0, 0, 0, 0, 0, // First Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Max Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Producer ID
0, 0, // Producer Epoch
0, 0, 0, 0, // First Sequence
0, 0, 0, 0, // Number of Records
},
},
{
name: "uncompressed record",
batch: RecordBatch{
Version: 2,
FirstTimestamp: time.Unix(1479847795, 0),
MaxTimestamp: time.Unix(0, 0),
LastOffsetDelta: 0,
Records: []*Record{{
TimestampDelta: 5 * time.Millisecond,
Key: []byte{1, 2, 3, 4},
Value: []byte{5, 6, 7},
Headers: []*RecordHeader{{
Key: []byte{8, 9, 10},
Value: []byte{11, 12},
}},
}},
recordsLen: 21,
},
encoded: []byte{
0, 0, 0, 0, 0, 0, 0, 0, // First Offset
0, 0, 0, 70, // Length
0, 0, 0, 0, // Partition Leader Epoch
2, // Version
84, 121, 97, 253, // CRC
0, 0, // Attributes
0, 0, 0, 0, // Last Offset Delta
0, 0, 1, 88, 141, 205, 89, 56, // First Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Max Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Producer ID
0, 0, // Producer Epoch
0, 0, 0, 0, // First Sequence
0, 0, 0, 1, // Number of Records
40, // Record Length
0, // Attributes
10, // Timestamp Delta
0, // Offset Delta
8, // Key Length
1, 2, 3, 4,
6, // Value Length
5, 6, 7,
2, // Number of Headers
6, // Header Key Length
8, 9, 10, // Header Key
4, // Header Value Length
11, 12, // Header Value
},
},
{
name: "gzipped record",
batch: RecordBatch{
Version: 2,
Codec: CompressionGZIP,
CompressionLevel: CompressionLevelDefault,
FirstTimestamp: time.Unix(1479847795, 0),
MaxTimestamp: time.Unix(0, 0),
LastOffsetDelta: 0,
Records: []*Record{{
TimestampDelta: 5 * time.Millisecond,
Key: []byte{1, 2, 3, 4},
Value: []byte{5, 6, 7},
Headers: []*RecordHeader{{
Key: []byte{8, 9, 10},
Value: []byte{11, 12},
}},
}},
recordsLen: 21,
},
encoded: []byte{
0, 0, 0, 0, 0, 0, 0, 0, // First Offset
0, 0, 0, 94, // Length
0, 0, 0, 0, // Partition Leader Epoch
2, // Version
159, 236, 182, 189, // CRC
0, 1, // Attributes
0, 0, 0, 0, // Last Offset Delta
0, 0, 1, 88, 141, 205, 89, 56, // First Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Max Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Producer ID
0, 0, // Producer Epoch
0, 0, 0, 0, // First Sequence
0, 0, 0, 1, // Number of Records
31, 139, 8, 0, 0, 0, 0, 0, 0, 255, 210, 96, 224, 98, 224, 96, 100, 98, 102, 97, 99, 101,
99, 103, 98, 227, 224, 228, 98, 225, 230, 1, 4, 0, 0, 255, 255, 173, 201, 88, 103, 21, 0, 0, 0,
},
oldGoEncoded: []byte{
0, 0, 0, 0, 0, 0, 0, 0, // First Offset
0, 0, 0, 94, // Length
0, 0, 0, 0, // Partition Leader Epoch
2, // Version
0, 216, 14, 210, // CRC
0, 1, // Attributes
0, 0, 0, 0, // Last Offset Delta
0, 0, 1, 88, 141, 205, 89, 56, // First Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Max Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Producer ID
0, 0, // Producer Epoch
0, 0, 0, 0, // First Sequence
0, 0, 0, 1, // Number of Records
31, 139, 8, 0, 0, 9, 110, 136, 0, 255, 210, 96, 224, 98, 224, 96, 100, 98, 102, 97, 99, 101,
99, 103, 98, 227, 224, 228, 98, 225, 230, 1, 4, 0, 0, 255, 255, 173, 201, 88, 103, 21, 0, 0, 0,
},
},
{
name: "snappy compressed record",
batch: RecordBatch{
Version: 2,
Codec: CompressionSnappy,
FirstTimestamp: time.Unix(1479847795, 0),
MaxTimestamp: time.Unix(0, 0),
LastOffsetDelta: 0,
Records: []*Record{{
TimestampDelta: 5 * time.Millisecond,
Key: []byte{1, 2, 3, 4},
Value: []byte{5, 6, 7},
Headers: []*RecordHeader{{
Key: []byte{8, 9, 10},
Value: []byte{11, 12},
}},
}},
recordsLen: 21,
},
encoded: []byte{
0, 0, 0, 0, 0, 0, 0, 0, // First Offset
0, 0, 0, 72, // Length
0, 0, 0, 0, // Partition Leader Epoch
2, // Version
21, 0, 159, 97, // CRC
0, 2, // Attributes
0, 0, 0, 0, // Last Offset Delta
0, 0, 1, 88, 141, 205, 89, 56, // First Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Max Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Producer ID
0, 0, // Producer Epoch
0, 0, 0, 0, // First Sequence
0, 0, 0, 1, // Number of Records
21, 80, 40, 0, 10, 0, 8, 1, 2, 3, 4, 6, 5, 6, 7, 2, 6, 8, 9, 10, 4, 11, 12,
},
},
{
name: "lz4 compressed record",
batch: RecordBatch{
Version: 2,
Codec: CompressionLZ4,
FirstTimestamp: time.Unix(1479847795, 0),
MaxTimestamp: time.Unix(0, 0),
LastOffsetDelta: 0,
Records: []*Record{{
TimestampDelta: 5 * time.Millisecond,
Key: []byte{1, 2, 3, 4},
Value: []byte{5, 6, 7},
Headers: []*RecordHeader{{
Key: []byte{8, 9, 10},
Value: []byte{11, 12},
}},
}},
recordsLen: 21,
},
encoded: []byte{
0, 0, 0, 0, 0, 0, 0, 0, // First Offset
0, 0, 0, 89, // Length
0, 0, 0, 0, // Partition Leader Epoch
2, // Version
169, 74, 119, 197, // CRC
0, 3, // Attributes
0, 0, 0, 0, // Last Offset Delta
0, 0, 1, 88, 141, 205, 89, 56, // First Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Max Timestamp
0, 0, 0, 0, 0, 0, 0, 0, // Producer ID
0, 0, // Producer Epoch
0, 0, 0, 0, // First Sequence
0, 0, 0, 1, // Number of Records
4, 34, 77, 24, 100, 112, 185, 21, 0, 0, 128, 40, 0, 10, 0, 8, 1, 2, 3, 4, 6, 5, 6, 7, 2,
6, 8, 9, 10, 4, 11, 12, 0, 0, 0, 0, 12, 59, 239, 146,
},
},
}
func isOldGo(t *testing.T) bool {
v := strings.Split(runtime.Version()[2:], ".")
if len(v) < 2 {
t.Logf("Can't parse version: %s", runtime.Version())
return false
}
maj, err := strconv.Atoi(v[0])
if err != nil {
t.Logf("Can't parse version: %s", runtime.Version())
return false
}
min, err := strconv.Atoi(v[1])
if err != nil {
t.Logf("Can't parse version: %s", runtime.Version())
return false
}
return maj < 1 || (maj == 1 && min < 8)
}
func TestRecordBatchEncoding(t *testing.T) {
for _, tc := range recordBatchTestCases {
if tc.oldGoEncoded != nil && isOldGo(t) {
testEncodable(t, tc.name, &tc.batch, tc.oldGoEncoded)
} else {
testEncodable(t, tc.name, &tc.batch, tc.encoded)
}
}
}
func TestRecordBatchDecoding(t *testing.T) {
for _, tc := range recordBatchTestCases {
batch := RecordBatch{}
testDecodable(t, tc.name, &batch, tc.encoded)
for _, r := range batch.Records {
r.length = varintLengthField{}
}
for _, r := range tc.batch.Records {
r.length = varintLengthField{}
}
// The compression level is not restored on decoding. It is not needed
// anyway. We only set it here to ensure that comparision succeeds.
batch.CompressionLevel = tc.batch.CompressionLevel
if !reflect.DeepEqual(batch, tc.batch) {
t.Errorf(spew.Sprintf("invalid decode of %s\ngot %+v\nwanted %+v", tc.name, batch, tc.batch))
}
}
}
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