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https://github.com/akvorado/akvorado.git
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c6a9319b57
This is a first step to make it accept configuration. Most of the changes are quite trivial, but I also ran into some difficulties with query columns and filters. They need the schema for parsing, but parsing happens before dependencies are instantiated (and even if it was not the case, parsing is stateless). Therefore, I have added a `Validate()` method that must be called after instantiation. Various bits `panic()` if not validated to ensure we catch all cases. The alternative to make the component manages a global state would have been simpler but it would break once we add the ability to add or disable columns.
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
// SPDX-FileCopyrightText: 2022 Free Mobile
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// SPDX-License-Identifier: AGPL-3.0-only
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package kafka
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import (
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"errors"
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"fmt"
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"math/rand"
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"testing"
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"time"
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"github.com/Shopify/sarama"
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"akvorado/common/daemon"
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"akvorado/common/helpers"
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"akvorado/common/kafka"
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"akvorado/common/reporter"
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"akvorado/common/schema"
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)
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func TestRealKafka(t *testing.T) {
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client, brokers := kafka.SetupKafkaBroker(t)
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rand.Seed(time.Now().UnixMicro())
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topicName := fmt.Sprintf("test-topic-%d", rand.Int())
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configuration := DefaultConfiguration()
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configuration.Topic = topicName
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configuration.Brokers = brokers
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configuration.Version = kafka.Version(sarama.V2_8_1_0)
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configuration.FlushInterval = 100 * time.Millisecond
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expectedTopicName := fmt.Sprintf("%s-%s", topicName, schema.NewMock(t).ProtobufMessageHash())
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r := reporter.NewMock(t)
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c, err := New(r, configuration, Dependencies{Daemon: daemon.NewMock(t), Schema: schema.NewMock(t)})
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if err != nil {
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t.Fatalf("New() error:\n%+v", err)
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}
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helpers.StartStop(t, c)
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c.Send("127.0.0.1", []byte("hello world!"))
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c.Send("127.0.0.1", []byte("goodbye world!"))
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time.Sleep(10 * time.Millisecond)
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gotMetrics := r.GetMetrics("akvorado_inlet_kafka_", "sent_")
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expectedMetrics := map[string]string{
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`sent_bytes_total{exporter="127.0.0.1"}`: "26",
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`sent_messages_total{exporter="127.0.0.1"}`: "2",
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}
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if diff := helpers.Diff(gotMetrics, expectedMetrics); diff != "" {
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t.Fatalf("Metrics (-got, +want):\n%s", diff)
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}
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// Try to consume the two messages
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consumer, err := sarama.NewConsumerFromClient(client)
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if err != nil {
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t.Fatalf("NewConsumerGroup() error:\n%+v", err)
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}
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defer consumer.Close()
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var partitions []int32
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for {
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partitions, err = consumer.Partitions(expectedTopicName)
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if err != nil {
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if errors.Is(err, sarama.ErrUnknownTopicOrPartition) {
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// Wait for topic to be available
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continue
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}
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t.Fatalf("Partitions() error:\n%+v", err)
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}
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break
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}
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partitionConsumer, err := consumer.ConsumePartition(expectedTopicName, partitions[0], sarama.OffsetOldest)
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if err != nil {
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t.Fatalf("ConsumePartitions() error:\n%+v", err)
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}
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got := []string{}
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expected := []string{
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"hello world!",
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"goodbye world!",
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}
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timeout := time.After(15 * time.Second)
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for i := 0; i < len(expected); i++ {
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select {
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case msg := <-partitionConsumer.Messages():
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got = append(got, string(msg.Value))
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case err := <-partitionConsumer.Errors():
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t.Fatalf("consumer.Errors():\n%+v", err)
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case <-timeout:
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}
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}
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if diff := helpers.Diff(got, expected); diff != "" {
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t.Fatalf("Didn't received the expected messages (-got, +want):\n%s", diff)
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}
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}
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