109 lines
3.1 KiB
Go
109 lines
3.1 KiB
Go
package rhh
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import (
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"testing"
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"github.com/influxdata/platform/kit/prom/promtest"
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"github.com/prometheus/client_golang/prometheus"
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)
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func TestMetrics_Metrics(t *testing.T) {
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// metrics to be shared by multiple file stores.
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metrics := NewMetrics("test", "sub", prometheus.Labels{"engine_id": "", "node_id": ""})
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t1 := newRHHTracker(metrics, prometheus.Labels{"engine_id": "0", "node_id": "0"})
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t2 := newRHHTracker(metrics, prometheus.Labels{"engine_id": "1", "node_id": "0"})
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reg := prometheus.NewRegistry()
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reg.MustRegister(metrics.PrometheusCollectors()...)
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base := "test_sub_"
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// All the metric names
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gauges := []string{
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base + "load_percent",
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base + "size",
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base + "get_duration_last_ns",
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base + "put_duration_last_ns",
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base + "grow_duration_s",
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base + "mean_probes",
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}
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counters := []string{
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base + "get_total",
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base + "put_total",
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}
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histograms := []string{
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base + "get_duration_ns",
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base + "put_duration_ns",
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}
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// Generate some measurements.
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for i, tracker := range []*rhhTracker{t1, t2} {
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tracker.SetLoadFactor(float64(i + len(gauges[0])))
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tracker.SetSize(uint64(i + len(gauges[1])))
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labels := tracker.Labels()
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tracker.metrics.LastGetDuration.With(labels).Set(float64(i + len(gauges[2])))
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tracker.metrics.LastInsertDuration.With(labels).Set(float64(i + len(gauges[3])))
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tracker.metrics.LastGrowDuration.With(labels).Set(float64(i + len(gauges[4])))
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tracker.SetProbeCount(float64(i + len(gauges[5])))
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labels = tracker.Labels()
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labels["status"] = "ok"
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tracker.metrics.Gets.With(labels).Add(float64(i + len(counters[0])))
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tracker.metrics.Puts.With(labels).Add(float64(i + len(counters[1])))
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labels = tracker.Labels()
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tracker.metrics.GetDuration.With(labels).Observe(float64(i + len(histograms[0])))
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tracker.metrics.InsertDuration.With(labels).Observe(float64(i + len(histograms[1])))
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}
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// Test that all the correct metrics are present.
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mfs, err := reg.Gather()
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if err != nil {
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t.Fatal(err)
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}
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// The label variants for the two caches.
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labelVariants := []prometheus.Labels{
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prometheus.Labels{"engine_id": "0", "node_id": "0"},
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prometheus.Labels{"engine_id": "1", "node_id": "0"},
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}
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for i, labels := range labelVariants {
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for _, name := range gauges {
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exp := float64(i + len(name))
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metric := promtest.MustFindMetric(t, mfs, name, labels)
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if got := metric.GetGauge().GetValue(); got != exp {
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t.Errorf("[%s %d] got %v, expected %v", name, i, got, exp)
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}
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}
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for _, name := range counters {
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exp := float64(i + len(name))
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// Make a copy since we need to add a label
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l := make(prometheus.Labels, len(labels))
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for k, v := range labels {
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l[k] = v
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}
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l["status"] = "ok"
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metric := promtest.MustFindMetric(t, mfs, name, l)
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if got := metric.GetCounter().GetValue(); got != exp {
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t.Errorf("[%s %d] got %v, expected %v", name, i, got, exp)
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}
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}
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for _, name := range histograms {
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exp := float64(i + len(name))
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metric := promtest.MustFindMetric(t, mfs, name, labels)
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if got := metric.GetHistogram().GetSampleSum(); got != exp {
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t.Errorf("[%s %d] got %v, expected %v", name, i, got, exp)
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}
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}
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}
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}
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