1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
/*
This is a k6 test script that imports the xk6-kafka and
tests Kafka with a 200 byte array messages per iteration.
*/
import { check } from "k6";
import {
Writer,
Reader,
Connection,
SchemaRegistry,
SCHEMA_TYPE_BYTES,
} from "k6/x/kafka"; // import kafka extension
const brokers = ["192.168.1.10:9092"];
const topic = "xk6_kafka_byte_array_topic";
const writer = new Writer({
brokers: brokers,
topic: topic,
autoCreateTopic: true,
});
const reader = new Reader({
brokers: brokers,
topic: topic,
});
const connection = new Connection({
address: brokers[0],
});
const schemaRegistry = new SchemaRegistry();
if (__VU == 0) {
connection.createTopic({ topic: topic });
}
const payload = "byte array payload";
export default function () {
for (let index = 0; index < 100; index++) {
let messages = [
{
// The data type of the key is a string
key: schemaRegistry.serialize({
data: Array.from("test-id-abc-" + index, (x) => x.charCodeAt(0)),
schemaType: SCHEMA_TYPE_BYTES,
}),
// The data type of the value is a byte array
value: schemaRegistry.serialize({
data: Array.from(payload, (x) => x.charCodeAt(0)),
schemaType: SCHEMA_TYPE_BYTES,
}),
},
{
key: schemaRegistry.serialize({
data: Array.from("test-id-def-" + index, (x) => x.charCodeAt(0)),
schemaType: SCHEMA_TYPE_BYTES,
}),
value: schemaRegistry.serialize({
data: Array.from(payload, (x) => x.charCodeAt(0)),
schemaType: SCHEMA_TYPE_BYTES,
}),
},
];
writer.produce({
messages: messages,
});
}
// Read 10 messages only
let messages = reader.consume({ limit: 10 });
check(messages, {
"10 messages returned": (msgs) => msgs.length == 10,
"key starts with 'test-id-' string": (msgs) =>
String.fromCharCode(
...schemaRegistry.deserialize({
data: msgs[0].key,
schemaType: SCHEMA_TYPE_BYTES,
}),
).startsWith("test-id-"),
"value is correct": (msgs) =>
String.fromCharCode(
...schemaRegistry.deserialize({
data: msgs[0].value,
schemaType: SCHEMA_TYPE_BYTES,
}),
) == payload,
});
}
// export function teardown(data) {
// if (__VU == 0) {
// // Delete the topic
// connection.deleteTopic(topic);
// }
// writer.close();
// reader.close();
// connection.close();
// }