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canary/src/main/java/io/littlehorse/canary/prometheus/Measurable.java
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76 changes: 73 additions & 3 deletions
76
...y/src/test/java/io/littlehorse/canary/aggregator/topology/TaskRunLatencyTopologyTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,9 +1,79 @@ | ||
| package io.littlehorse.canary.aggregator.topology; | ||
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| import static org.junit.jupiter.api.Assertions.*; | ||
| import static org.assertj.core.api.Assertions.assertThat; | ||
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| import org.apache.kafka.streams.TopologyTestDriver; | ||
| import com.google.protobuf.util.Timestamps; | ||
| import io.littlehorse.canary.aggregator.internal.MetricTimeExtractor; | ||
| import io.littlehorse.canary.aggregator.serdes.ProtobufSerdes; | ||
| import io.littlehorse.canary.proto.Metadata; | ||
| import io.littlehorse.canary.proto.Metric; | ||
| import io.littlehorse.canary.proto.MetricAverage; | ||
| import io.littlehorse.canary.proto.TaskRunLatency; | ||
| import java.io.IOException; | ||
| import java.nio.file.Files; | ||
| import java.util.Properties; | ||
| import org.apache.kafka.common.serialization.Serdes; | ||
| import org.apache.kafka.streams.*; | ||
| import org.apache.kafka.streams.kstream.Consumed; | ||
| import org.apache.kafka.streams.state.KeyValueStore; | ||
| import org.junit.jupiter.api.AfterEach; | ||
| import org.junit.jupiter.api.BeforeEach; | ||
| import org.junit.jupiter.api.Test; | ||
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| class TaskRunLatencyTopologyTest { | ||
| TopologyTestDriver testDriver; | ||
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| private TopologyTestDriver testDriver; | ||
| private TestInputTopic<String, Metric> inputTopic; | ||
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| @BeforeEach | ||
| void beforeEach() throws IOException { | ||
| String topicName = "canary-metric-beats"; | ||
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| Consumed<String, Metric> serdes = Consumed.with(Serdes.String(), ProtobufSerdes.Metric()) | ||
| .withTimestampExtractor(new MetricTimeExtractor()); | ||
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| StreamsBuilder builder = new StreamsBuilder(); | ||
| new TaskRunLatencyTopology(builder.stream(topicName, serdes)); | ||
| Topology topology = builder.build(); | ||
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| Properties properties = new Properties(); | ||
| properties.put( | ||
| StreamsConfig.STATE_DIR_CONFIG, | ||
| Files.createTempDirectory("canaryStreamUnitTest").toString()); | ||
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| testDriver = new TopologyTestDriver(topology, properties); | ||
| inputTopic = testDriver.createInputTopic( | ||
| topicName, Serdes.String().serializer(), ProtobufSerdes.Metric().serializer()); | ||
| } | ||
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| @AfterEach | ||
| void afterEach() { | ||
| testDriver.close(); | ||
| } | ||
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| @Test | ||
| void calculateLatency() { | ||
| String key = "localhost:2023"; | ||
| Metric metric1 = buildLatencyMetric(20); | ||
| Metric metric2 = buildLatencyMetric(40); | ||
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| inputTopic.pipeInput(key, metric1); | ||
| inputTopic.pipeInput(key, metric2); | ||
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| KeyValueStore store = testDriver.getKeyValueStore("latency-metrics"); | ||
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| assertThat(store.get(key)) | ||
| .isEqualTo(MetricAverage.newBuilder() | ||
| .setSum(60) | ||
| .setAvg(30) | ||
| .setCount(2) | ||
| .build()); | ||
| } | ||
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| private static Metric buildLatencyMetric(int latency) { | ||
| return Metric.newBuilder() | ||
| .setMetadata(Metadata.newBuilder().setTime(Timestamps.now())) | ||
| .setTaskRunLatency(TaskRunLatency.newBuilder().setLatency(latency)) | ||
| .build(); | ||
| } | ||
| } |