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package influxstatsd
import (
"testing"
"github.com/go-kit/kit/metrics/teststat"
"github.com/go-kit/log"
)
func TestCounter(t *testing.T) {
prefix, name := "abc.", "def"
label, value := "label", "value"
regex := `^` + prefix + name + "," + label + `=` + value + `:([0-9\.]+)\|c$`
d := New(prefix, log.NewNopLogger())
counter := d.NewCounter(name, 1.0).With(label, value)
valuef := teststat.SumLines(d, regex)
if err := teststat.TestCounter(counter, valuef); err != nil {
t.Fatal(err)
}
}
func TestCounterSampled(t *testing.T) {
// This will involve multiplying the observed sum by the inverse of the
// sample rate and checking against the expected value within some
// tolerance.
t.Skip("TODO")
}
func TestGauge(t *testing.T) {
prefix, name := "ghi.", "jkl"
label, value := "xyz", "abc"
regex := `^` + prefix + name + `,hostname=foohost,` + label + `=` + value + `:([0-9\.]+)\|g$`
d := New(prefix, log.NewNopLogger(), "hostname", "foohost")
gauge := d.NewGauge(name).With(label, value)
valuef := teststat.LastLine(d, regex)
if err := teststat.TestGauge(gauge, valuef); err != nil {
t.Fatal(err)
}
}
// InfluxStatsD histograms just emit all observations. So, we collect them into
// a generic histogram, and run the statistics test on that.
func TestHistogram(t *testing.T) {
prefix, name := "influxstatsd.", "histogram_test"
label, value := "abc", "def"
regex := `^` + prefix + name + "," + label + `=` + value + `:([0-9\.]+)\|h$`
d := New(prefix, log.NewNopLogger())
histogram := d.NewHistogram(name, 1.0).With(label, value)
quantiles := teststat.Quantiles(d, regex, 50) // no |@0.X
if err := teststat.TestHistogram(histogram, quantiles, 0.01); err != nil {
t.Fatal(err)
}
}
func TestHistogramSampled(t *testing.T) {
prefix, name := "influxstatsd.", "sampled_histogram_test"
label, value := "foo", "bar"
regex := `^` + prefix + name + "," + label + `=` + value + `:([0-9\.]+)\|h\|@0\.01[0]*$`
d := New(prefix, log.NewNopLogger())
histogram := d.NewHistogram(name, 0.01).With(label, value)
quantiles := teststat.Quantiles(d, regex, 50)
if err := teststat.TestHistogram(histogram, quantiles, 0.02); err != nil {
t.Fatal(err)
}
}
func TestTiming(t *testing.T) {
prefix, name := "influxstatsd.", "timing_test"
label, value := "wiggle", "bottom"
regex := `^` + prefix + name + "," + label + `=` + value + `:([0-9\.]+)\|ms$`
d := New(prefix, log.NewNopLogger())
histogram := d.NewTiming(name, 1.0).With(label, value)
quantiles := teststat.Quantiles(d, regex, 50) // no |@0.X
if err := teststat.TestHistogram(histogram, quantiles, 0.01); err != nil {
t.Fatal(err)
}
}
func TestTimingSampled(t *testing.T) {
prefix, name := "influxstatsd.", "sampled_timing_test"
label, value := "internal", "external"
regex := `^` + prefix + name + "," + label + `=` + value + `:([0-9\.]+)\|ms\|@0.03[0]*$`
d := New(prefix, log.NewNopLogger())
histogram := d.NewTiming(name, 0.03).With(label, value)
quantiles := teststat.Quantiles(d, regex, 50)
if err := teststat.TestHistogram(histogram, quantiles, 0.02); err != nil {
t.Fatal(err)
}
}
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