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331 lines
8.3 KiB
Go
331 lines
8.3 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package array
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import (
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"errors"
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"fmt"
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"math"
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"testing"
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"github.com/stretchr/testify/require"
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"go.opentelemetry.io/otel/api/metric"
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"go.opentelemetry.io/otel/sdk/export/metric/aggregation"
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"go.opentelemetry.io/otel/sdk/metric/aggregator/aggregatortest"
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)
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type updateTest struct {
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count int
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}
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func checkZero(t *testing.T, agg *Aggregator, desc *metric.Descriptor) {
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kind := desc.NumberKind()
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sum, err := agg.Sum()
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require.NoError(t, err)
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require.Equal(t, kind.Zero(), sum)
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count, err := agg.Count()
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require.NoError(t, err)
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require.Equal(t, int64(0), count)
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max, err := agg.Max()
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require.True(t, errors.Is(err, aggregation.ErrNoData))
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require.Equal(t, kind.Zero(), max)
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min, err := agg.Min()
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require.True(t, errors.Is(err, aggregation.ErrNoData))
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require.Equal(t, kind.Zero(), min)
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}
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func new2() (_, _ *Aggregator) {
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alloc := New(2)
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return &alloc[0], &alloc[1]
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}
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func new4() (_, _, _, _ *Aggregator) {
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alloc := New(4)
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return &alloc[0], &alloc[1], &alloc[2], &alloc[3]
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}
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func (ut *updateTest) run(t *testing.T, profile aggregatortest.Profile) {
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descriptor := aggregatortest.NewAggregatorTest(metric.ValueRecorderKind, profile.NumberKind)
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agg, ckpt := new2()
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all := aggregatortest.NewNumbers(profile.NumberKind)
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for i := 0; i < ut.count; i++ {
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x := profile.Random(+1)
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all.Append(x)
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aggregatortest.CheckedUpdate(t, agg, x, descriptor)
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y := profile.Random(-1)
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all.Append(y)
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aggregatortest.CheckedUpdate(t, agg, y, descriptor)
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}
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err := agg.SynchronizedMove(ckpt, descriptor)
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require.NoError(t, err)
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checkZero(t, agg, descriptor)
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all.Sort()
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sum, err := ckpt.Sum()
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require.Nil(t, err)
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allSum := all.Sum()
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require.InEpsilon(t,
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(&allSum).CoerceToFloat64(profile.NumberKind),
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sum.CoerceToFloat64(profile.NumberKind),
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0.0000001,
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"Same sum")
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count, err := ckpt.Count()
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require.Nil(t, err)
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require.Equal(t, all.Count(), count, "Same count")
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min, err := ckpt.Min()
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require.Nil(t, err)
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require.Equal(t, all.Min(), min, "Same min")
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max, err := ckpt.Max()
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require.Nil(t, err)
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require.Equal(t, all.Max(), max, "Same max")
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qx, err := ckpt.Quantile(0.5)
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require.Nil(t, err)
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require.Equal(t, all.Median(), qx, "Same median")
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}
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func TestArrayUpdate(t *testing.T) {
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// Test with an odd an even number of measurements
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for count := 999; count <= 1000; count++ {
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t.Run(fmt.Sprint("Odd=", count%2 == 1), func(t *testing.T) {
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ut := updateTest{
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count: count,
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}
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// Test integer and floating point
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aggregatortest.RunProfiles(t, ut.run)
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})
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}
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}
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type mergeTest struct {
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count int
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absolute bool
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}
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func (mt *mergeTest) run(t *testing.T, profile aggregatortest.Profile) {
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descriptor := aggregatortest.NewAggregatorTest(metric.ValueRecorderKind, profile.NumberKind)
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agg1, agg2, ckpt1, ckpt2 := new4()
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all := aggregatortest.NewNumbers(profile.NumberKind)
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for i := 0; i < mt.count; i++ {
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x1 := profile.Random(+1)
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all.Append(x1)
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aggregatortest.CheckedUpdate(t, agg1, x1, descriptor)
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x2 := profile.Random(+1)
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all.Append(x2)
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aggregatortest.CheckedUpdate(t, agg2, x2, descriptor)
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if !mt.absolute {
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y1 := profile.Random(-1)
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all.Append(y1)
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aggregatortest.CheckedUpdate(t, agg1, y1, descriptor)
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y2 := profile.Random(-1)
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all.Append(y2)
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aggregatortest.CheckedUpdate(t, agg2, y2, descriptor)
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}
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}
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require.NoError(t, agg1.SynchronizedMove(ckpt1, descriptor))
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require.NoError(t, agg2.SynchronizedMove(ckpt2, descriptor))
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checkZero(t, agg1, descriptor)
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checkZero(t, agg2, descriptor)
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aggregatortest.CheckedMerge(t, ckpt1, ckpt2, descriptor)
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all.Sort()
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sum, err := ckpt1.Sum()
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require.Nil(t, err)
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allSum := all.Sum()
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require.InEpsilon(t,
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(&allSum).CoerceToFloat64(profile.NumberKind),
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sum.CoerceToFloat64(profile.NumberKind),
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0.0000001,
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"Same sum - absolute")
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count, err := ckpt1.Count()
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require.Nil(t, err)
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require.Equal(t, all.Count(), count, "Same count - absolute")
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min, err := ckpt1.Min()
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require.Nil(t, err)
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require.Equal(t, all.Min(), min, "Same min - absolute")
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max, err := ckpt1.Max()
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require.Nil(t, err)
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require.Equal(t, all.Max(), max, "Same max - absolute")
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qx, err := ckpt1.Quantile(0.5)
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require.Nil(t, err)
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require.Equal(t, all.Median(), qx, "Same median - absolute")
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}
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func TestArrayMerge(t *testing.T) {
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// Test with an odd an even number of measurements
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for count := 999; count <= 1000; count++ {
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t.Run(fmt.Sprint("Odd=", count%2 == 1), func(t *testing.T) {
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// Test absolute and non-absolute
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for _, absolute := range []bool{false, true} {
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t.Run(fmt.Sprint("Absolute=", absolute), func(t *testing.T) {
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mt := mergeTest{
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count: count,
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absolute: absolute,
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}
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// Test integer and floating point
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aggregatortest.RunProfiles(t, mt.run)
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})
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}
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})
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}
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}
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func TestArrayErrors(t *testing.T) {
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aggregatortest.RunProfiles(t, func(t *testing.T, profile aggregatortest.Profile) {
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agg, ckpt := new2()
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_, err := ckpt.Max()
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require.Error(t, err)
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require.Equal(t, err, aggregation.ErrNoData)
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_, err = ckpt.Min()
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require.Error(t, err)
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require.Equal(t, err, aggregation.ErrNoData)
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_, err = ckpt.Quantile(0.1)
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require.Error(t, err)
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require.Equal(t, err, aggregation.ErrNoData)
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descriptor := aggregatortest.NewAggregatorTest(metric.ValueRecorderKind, profile.NumberKind)
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aggregatortest.CheckedUpdate(t, agg, metric.Number(0), descriptor)
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if profile.NumberKind == metric.Float64NumberKind {
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aggregatortest.CheckedUpdate(t, agg, metric.NewFloat64Number(math.NaN()), descriptor)
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}
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require.NoError(t, agg.SynchronizedMove(ckpt, descriptor))
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count, err := ckpt.Count()
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require.Equal(t, int64(1), count, "NaN value was not counted")
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require.Nil(t, err)
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num, err := ckpt.Quantile(0)
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require.Nil(t, err)
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require.Equal(t, num, metric.Number(0))
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_, err = ckpt.Quantile(-0.0001)
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require.Error(t, err)
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require.True(t, errors.Is(err, aggregation.ErrInvalidQuantile))
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_, err = agg.Quantile(1.0001)
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require.Error(t, err)
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require.True(t, errors.Is(err, aggregation.ErrNoData))
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})
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}
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func TestArrayFloat64(t *testing.T) {
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descriptor := aggregatortest.NewAggregatorTest(metric.ValueRecorderKind, metric.Float64NumberKind)
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fpsf := func(sign int) []float64 {
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// Check behavior of a bunch of odd floating
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// points except for NaN, which is invalid.
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return []float64{
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0,
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1 / math.Inf(sign),
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1,
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2,
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1e100,
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math.MaxFloat64,
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math.SmallestNonzeroFloat64,
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math.MaxFloat32,
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math.SmallestNonzeroFloat32,
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math.E,
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math.Pi,
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math.Phi,
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math.Sqrt2,
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math.SqrtE,
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math.SqrtPi,
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math.SqrtPhi,
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math.Ln2,
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math.Log2E,
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math.Ln10,
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math.Log10E,
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}
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}
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all := aggregatortest.NewNumbers(metric.Float64NumberKind)
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agg, ckpt := new2()
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for _, f := range fpsf(1) {
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all.Append(metric.NewFloat64Number(f))
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aggregatortest.CheckedUpdate(t, agg, metric.NewFloat64Number(f), descriptor)
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}
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for _, f := range fpsf(-1) {
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all.Append(metric.NewFloat64Number(f))
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aggregatortest.CheckedUpdate(t, agg, metric.NewFloat64Number(f), descriptor)
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}
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require.NoError(t, agg.SynchronizedMove(ckpt, descriptor))
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all.Sort()
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sum, err := ckpt.Sum()
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require.Nil(t, err)
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allSum := all.Sum()
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require.InEpsilon(t, (&allSum).AsFloat64(), sum.AsFloat64(), 0.0000001, "Same sum")
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count, err := ckpt.Count()
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require.Equal(t, all.Count(), count, "Same count")
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require.Nil(t, err)
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min, err := ckpt.Min()
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require.Nil(t, err)
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require.Equal(t, all.Min(), min, "Same min")
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max, err := ckpt.Max()
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require.Nil(t, err)
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require.Equal(t, all.Max(), max, "Same max")
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qx, err := ckpt.Quantile(0.5)
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require.Nil(t, err)
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require.Equal(t, all.Median(), qx, "Same median")
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po, err := ckpt.Points()
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require.Nil(t, err)
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require.Equal(t, all.Len(), len(po), "Points() must have same length of updates")
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for i := 0; i < len(po); i++ {
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require.Equal(t, all.Points()[i], po[i], "Wrong point at position %d", i)
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}
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}
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