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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.
106 lines
3.7 KiB
Go
106 lines
3.7 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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"testing"
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"time"
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"github.com/Shopify/sarama"
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gometrics "github.com/rcrowley/go-metrics"
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"akvorado/common/daemon"
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"akvorado/common/helpers"
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"akvorado/common/reporter"
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"akvorado/common/schema"
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)
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func TestKafka(t *testing.T) {
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r := reporter.NewMock(t)
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c, mockProducer := NewMock(t, r, DefaultConfiguration())
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// Send one message
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received := make(chan bool)
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mockProducer.ExpectInputWithMessageCheckerFunctionAndSucceed(func(got *sarama.ProducerMessage) error {
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defer close(received)
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expected := sarama.ProducerMessage{
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Topic: fmt.Sprintf("flows-%s", c.d.Schema.ProtobufMessageHash()),
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Key: got.Key,
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Value: sarama.ByteEncoder("hello world!"),
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Partition: got.Partition,
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}
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if diff := helpers.Diff(got, expected); diff != "" {
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t.Fatalf("Send() (-got, +want):\n%s", diff)
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}
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return nil
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})
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c.Send("127.0.0.1", []byte("hello world!"))
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select {
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case <-received:
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case <-time.After(1 * time.Second):
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t.Fatal("Kafka message not received")
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}
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// Another but with a fail
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mockProducer.ExpectInputAndFail(errors.New("noooo"))
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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_")
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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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fmt.Sprintf(`errors_total{error="kafka: Failed to produce message to topic flows-%s: noooo"}`, c.d.Schema.ProtobufMessageHash()): "1",
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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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}
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func TestKafkaMetrics(t *testing.T) {
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r := reporter.NewMock(t)
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c, err := New(r, DefaultConfiguration(), 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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// Manually put some metrics
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gometrics.GetOrRegisterMeter("incoming-byte-rate-for-broker-1111", c.kafkaConfig.MetricRegistry).
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Mark(100)
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gometrics.GetOrRegisterMeter("incoming-byte-rate-for-broker-1112", c.kafkaConfig.MetricRegistry).
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Mark(200)
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gometrics.GetOrRegisterMeter("outgoing-byte-rate-for-broker-1111", c.kafkaConfig.MetricRegistry).
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Mark(199)
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gometrics.GetOrRegisterMeter("outgoing-byte-rate-for-broker-1112", c.kafkaConfig.MetricRegistry).
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Mark(20)
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gometrics.GetOrRegisterHistogram("request-size-for-broker-1111", c.kafkaConfig.MetricRegistry,
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gometrics.NewExpDecaySample(10, 1)).
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Update(100)
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gometrics.GetOrRegisterCounter("requests-in-flight-for-broker-1111", c.kafkaConfig.MetricRegistry).
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Inc(20)
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gometrics.GetOrRegisterCounter("requests-in-flight-for-broker-1112", c.kafkaConfig.MetricRegistry).
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Inc(20)
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gotMetrics := r.GetMetrics("akvorado_inlet_kafka_")
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expectedMetrics := map[string]string{
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`brokers_incoming_byte_rate{broker="1111"}`: "0",
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`brokers_incoming_byte_rate{broker="1112"}`: "0",
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`brokers_outgoing_byte_rate{broker="1111"}`: "0",
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`brokers_outgoing_byte_rate{broker="1112"}`: "0",
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`brokers_request_size_bucket{broker="1111",le="+Inf"}`: "1",
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`brokers_request_size_bucket{broker="1111",le="0.5"}`: "100",
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`brokers_request_size_bucket{broker="1111",le="0.9"}`: "100",
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`brokers_request_size_bucket{broker="1111",le="0.99"}`: "100",
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`brokers_request_size_count{broker="1111"}`: "1",
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`brokers_request_size_sum{broker="1111"}`: "100",
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`brokers_inflight_requests{broker="1111"}`: "20",
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`brokers_inflight_requests{broker="1112"}`: "20",
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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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}
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