telegraf/plugins/aggregators/basicstats/basicstats_test.go

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2017-10-10 19:02:01 +00:00
package basicstats
import (
"math"
"testing"
"time"
"github.com/influxdata/telegraf/metric"
"github.com/influxdata/telegraf/testutil"
)
var m1, _ = metric.New("m1",
map[string]string{"foo": "bar"},
map[string]interface{}{
"a": int64(1),
"b": int64(1),
"c": float64(2),
"d": float64(2),
},
time.Now(),
)
var m2, _ = metric.New("m1",
map[string]string{"foo": "bar"},
map[string]interface{}{
"a": int64(1),
"b": int64(3),
"c": float64(4),
"d": float64(6),
"e": float64(200),
"ignoreme": "string",
"andme": true,
},
time.Now(),
)
func BenchmarkApply(b *testing.B) {
minmax := NewBasicStats()
for n := 0; n < b.N; n++ {
minmax.Add(m1)
minmax.Add(m2)
}
}
// Test two metrics getting added.
func TestBasicStatsWithPeriod(t *testing.T) {
acc := testutil.Accumulator{}
minmax := NewBasicStats()
minmax.Add(m1)
minmax.Add(m2)
minmax.Push(&acc)
expectedFields := map[string]interface{}{
"a_count": float64(2), //a
"a_max": float64(1),
"a_min": float64(1),
"a_mean": float64(1),
"a_stdev": float64(0),
"a_s2": float64(0),
"b_count": float64(2), //b
"b_max": float64(3),
"b_min": float64(1),
"b_mean": float64(2),
"b_s2": float64(2),
"b_stdev": math.Sqrt(2),
"c_count": float64(2), //c
"c_max": float64(4),
"c_min": float64(2),
"c_mean": float64(3),
"c_s2": float64(2),
"c_stdev": math.Sqrt(2),
"d_count": float64(2), //d
"d_max": float64(6),
"d_min": float64(2),
"d_mean": float64(4),
"d_s2": float64(8),
"d_stdev": math.Sqrt(8),
"e_count": float64(1), //e
"e_max": float64(200),
"e_min": float64(200),
"e_mean": float64(200),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test two metrics getting added with a push/reset in between (simulates
// getting added in different periods.)
func TestBasicStatsDifferentPeriods(t *testing.T) {
acc := testutil.Accumulator{}
minmax := NewBasicStats()
minmax.Add(m1)
minmax.Push(&acc)
expectedFields := map[string]interface{}{
"a_count": float64(1), //a
"a_max": float64(1),
"a_min": float64(1),
"a_mean": float64(1),
"b_count": float64(1), //b
"b_max": float64(1),
"b_min": float64(1),
"b_mean": float64(1),
"c_count": float64(1), //c
"c_max": float64(2),
"c_min": float64(2),
"c_mean": float64(2),
"d_count": float64(1), //d
"d_max": float64(2),
"d_min": float64(2),
"d_mean": float64(2),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
acc.ClearMetrics()
minmax.Reset()
minmax.Add(m2)
minmax.Push(&acc)
expectedFields = map[string]interface{}{
"a_count": float64(1), //a
"a_max": float64(1),
"a_min": float64(1),
"a_mean": float64(1),
"b_count": float64(1), //b
"b_max": float64(3),
"b_min": float64(3),
"b_mean": float64(3),
"c_count": float64(1), //c
"c_max": float64(4),
"c_min": float64(4),
"c_mean": float64(4),
"d_count": float64(1), //d
"d_max": float64(6),
"d_min": float64(6),
"d_mean": float64(6),
"e_count": float64(1), //e
"e_max": float64(200),
"e_min": float64(200),
"e_mean": float64(200),
}
expectedTags = map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test only aggregating count
func TestBasicStatsWithOnlyCount(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{"count"}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
expectedFields := map[string]interface{}{
"a_count": float64(2),
"b_count": float64(2),
"c_count": float64(2),
"d_count": float64(2),
"e_count": float64(1),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test only aggregating minimum
func TestBasicStatsWithOnlyMin(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{"min"}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
expectedFields := map[string]interface{}{
"a_min": float64(1),
"b_min": float64(1),
"c_min": float64(2),
"d_min": float64(2),
"e_min": float64(200),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test only aggregating maximum
func TestBasicStatsWithOnlyMax(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{"max"}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
expectedFields := map[string]interface{}{
"a_max": float64(1),
"b_max": float64(3),
"c_max": float64(4),
"d_max": float64(6),
"e_max": float64(200),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test only aggregating mean
func TestBasicStatsWithOnlyMean(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{"mean"}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
expectedFields := map[string]interface{}{
"a_mean": float64(1),
"b_mean": float64(2),
"c_mean": float64(3),
"d_mean": float64(4),
"e_mean": float64(200),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test only aggregating variance
func TestBasicStatsWithOnlyVariance(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{"s2"}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
expectedFields := map[string]interface{}{
"a_s2": float64(0),
"b_s2": float64(2),
"c_s2": float64(2),
"d_s2": float64(8),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test only aggregating standard deviation
func TestBasicStatsWithOnlyStandardDeviation(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{"stdev"}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
expectedFields := map[string]interface{}{
"a_stdev": float64(0),
"b_stdev": math.Sqrt(2),
"c_stdev": math.Sqrt(2),
"d_stdev": math.Sqrt(8),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test only aggregating minimum and maximum
func TestBasicStatsWithMinAndMax(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{"min", "max"}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
expectedFields := map[string]interface{}{
"a_max": float64(1), //a
"a_min": float64(1),
"b_max": float64(3), //b
"b_min": float64(1),
"c_max": float64(4), //c
"c_min": float64(2),
"d_max": float64(6), //d
"d_min": float64(2),
"e_max": float64(200), //e
"e_min": float64(200),
}
expectedTags := map[string]string{
"foo": "bar",
}
acc.AssertContainsTaggedFields(t, "m1", expectedFields, expectedTags)
}
// Test that if an empty array is passed, no points are pushed
func TestBasicStatsWithNoStats(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
acc.AssertDoesNotContainMeasurement(t, "m1")
}
// Test that if an unknown stat is configured, it doesn't explode
func TestBasicStatsWithUnknownStat(t *testing.T) {
aggregator := NewBasicStats()
aggregator.Stats = []string{"crazy"}
aggregator.Add(m1)
aggregator.Add(m2)
acc := testutil.Accumulator{}
aggregator.Push(&acc)
acc.AssertDoesNotContainMeasurement(t, "m1")
}