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package ai.vespa.metricsproxy.service;
import ai.vespa.metricsproxy.metric.Metric;
import org.junit.Test;
import java.util.ArrayList;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
/**
* @author gjoranv
*/
public class MetricsParserTest {
private static class MetricsCollector implements MetricsParser.Collector {
List<Metric> metrics = new ArrayList<>();
@Override
public void accept(Metric metric) {
metrics.add(metric);
}
}
@Test
public void different_dimension_values_are_not_treated_as_equal() throws Exception {
var collector = new MetricsCollector();
MetricsParser.parse(metricsJsonDistinctButDuplicateDimensionDalues(), collector);
assertEquals(2, collector.metrics.size());
assertNotEquals("Dimensions should not be equal",
collector.metrics.get(0).getDimensions(),
collector.metrics.get(1).getDimensions());
}
@Test
public void different_swapped_dimension_values_are_not_treated_as_equal() throws Exception {
var collector = new MetricsCollector();
MetricsParser.parse(metricsJsonDistinctButDuplicateSwappedDimensionDalues(), collector);
assertEquals(2, collector.metrics.size());
assertNotEquals("Dimensions should not be equal",
collector.metrics.get(0).getDimensions(),
collector.metrics.get(1).getDimensions());
}
// The duplicate dimension values for 'cluster' and 'clusterid' exposed a bug in a previously used hashing algo for dimensions.
private String metricsJsonDistinctButDuplicateDimensionDalues() {
return """
{
"time": 1671035366573,
"status": {
"code": "up"
},
"metrics": {
"snapshot": {
"from": 1671035306.562,
"to": 1671035366.562
},
"values": [
{
"name": "cluster-controller.resource_usage.nodes_above_limit",
"values": {
"last": 1.0
},
"dimensions": {
"controller-index": "0",
"cluster": "CLUSTER-1",
"clusterid": "CLUSTER-1"
}
},
{
"name": "cluster-controller.resource_usage.nodes_above_limit",
"values": {
"last": 2.0
},
"dimensions": {
"controller-index": "0",
"cluster": "CLUSTER-2",
"clusterid": "CLUSTER-2"
}
}
]
}
}
""";
}
// The duplicate dimension values for 'cluster' and 'clusterid' exposed a bug in a previously used hashing algo for dimensions.
private String metricsJsonDistinctButDuplicateSwappedDimensionDalues() {
return """
{
"time": 1671035366573,
"status": {
"code": "up"
},
"metrics": {
"snapshot": {
"from": 1671035306.562,
"to": 1671035366.562
},
"values": [
{
"name": "cluster-controller.resource_usage.nodes_above_limit",
"values": {
"last": 1.0
},
"dimensions": {
"controller-index": "0",
"cluster": "CLUSTER-1",
"clusterid": "CLUSTER-2"
}
},
{
"name": "cluster-controller.resource_usage.nodes_above_limit",
"values": {
"last": 2.0
},
"dimensions": {
"controller-index": "0",
"cluster": "CLUSTER-2",
"clusterid": "CLUSTER-1"
}
}
]
}
}
""";
}
}
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