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|
package metrics
import (
"testing"
"time"
"github.com/pascaldekloe/goe/verify"
)
func TestDisplayMetrics(t *testing.T) {
interval := 10 * time.Millisecond
inm := NewInmemSink(interval, 50*time.Millisecond)
// Add data points
inm.SetGauge([]string{"foo", "bar"}, 42)
inm.SetGaugeWithLabels([]string{"foo", "bar"}, 23, []Label{{"a", "b"}})
inm.EmitKey([]string{"foo", "bar"}, 42)
inm.IncrCounter([]string{"foo", "bar"}, 20)
inm.IncrCounter([]string{"foo", "bar"}, 22)
inm.IncrCounterWithLabels([]string{"foo", "bar"}, 20, []Label{{"a", "b"}})
inm.IncrCounterWithLabels([]string{"foo", "bar"}, 40, []Label{{"a", "b"}})
inm.AddSample([]string{"foo", "bar"}, 20)
inm.AddSample([]string{"foo", "bar"}, 24)
inm.AddSampleWithLabels([]string{"foo", "bar"}, 23, []Label{{"a", "b"}})
inm.AddSampleWithLabels([]string{"foo", "bar"}, 33, []Label{{"a", "b"}})
data := inm.Data()
if len(data) != 1 {
t.Fatalf("bad: %v", data)
}
expected := MetricsSummary{
Timestamp: data[0].Interval.Round(time.Second).UTC().String(),
Gauges: []GaugeValue{
{
Name: "foo.bar",
Hash: "foo.bar",
Value: float32(42),
DisplayLabels: map[string]string{},
},
{
Name: "foo.bar",
Hash: "foo.bar;a=b",
Value: float32(23),
DisplayLabels: map[string]string{"a": "b"},
},
},
Points: []PointValue{
{
Name: "foo.bar",
Points: []float32{42},
},
},
Counters: []SampledValue{
{
Name: "foo.bar",
Hash: "foo.bar",
AggregateSample: &AggregateSample{
Count: 2,
Min: 20,
Max: 22,
Sum: 42,
SumSq: 884,
Rate: 200,
},
Mean: 21,
Stddev: 1.4142135623730951,
},
{
Name: "foo.bar",
Hash: "foo.bar;a=b",
AggregateSample: &AggregateSample{
Count: 2,
Min: 20,
Max: 40,
Sum: 60,
SumSq: 2000,
Rate: 200,
},
Mean: 30,
Stddev: 14.142135623730951,
DisplayLabels: map[string]string{"a": "b"},
},
},
Samples: []SampledValue{
{
Name: "foo.bar",
Hash: "foo.bar",
AggregateSample: &AggregateSample{
Count: 2,
Min: 20,
Max: 24,
Sum: 44,
SumSq: 976,
Rate: 200,
},
Mean: 22,
Stddev: 2.8284271247461903,
},
{
Name: "foo.bar",
Hash: "foo.bar;a=b",
AggregateSample: &AggregateSample{
Count: 2,
Min: 23,
Max: 33,
Sum: 56,
SumSq: 1618,
Rate: 200,
},
Mean: 28,
Stddev: 7.0710678118654755,
DisplayLabels: map[string]string{"a": "b"},
},
},
}
raw, err := inm.DisplayMetrics(nil, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
result := raw.(MetricsSummary)
// Ignore the LastUpdated field, we don't export that anyway
for i, got := range result.Counters {
expected.Counters[i].LastUpdated = got.LastUpdated
}
for i, got := range result.Samples {
expected.Samples[i].LastUpdated = got.LastUpdated
}
verify.Values(t, "all", result, expected)
}
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