171 lines
3.0 KiB
Go
171 lines
3.0 KiB
Go
// Copyright 2023 The Prometheus Authors
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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 main
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/common/model"
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)
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var (
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exampleMatrix = model.Matrix{
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&model.SampleStream{
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Metric: model.Metric{
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"le": "+Inf",
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},
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Values: []model.SamplePair{
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{
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Value: 31,
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Timestamp: 100,
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},
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{
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Value: 32,
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Timestamp: 200,
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},
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{
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Value: 40,
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Timestamp: 300,
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},
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},
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},
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&model.SampleStream{
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Metric: model.Metric{
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"le": "0.5",
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},
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Values: []model.SamplePair{
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{
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Value: 10,
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Timestamp: 100,
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},
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{
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Value: 11,
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Timestamp: 200,
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},
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{
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Value: 11,
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Timestamp: 300,
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},
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},
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},
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&model.SampleStream{
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Metric: model.Metric{
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"le": "10",
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},
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Values: []model.SamplePair{
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{
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Value: 30,
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Timestamp: 100,
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},
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{
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Value: 31,
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Timestamp: 200,
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},
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{
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Value: 37,
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Timestamp: 300,
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},
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},
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},
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&model.SampleStream{
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Metric: model.Metric{
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"le": "2",
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},
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Values: []model.SamplePair{
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{
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Value: 25,
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Timestamp: 100,
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},
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{
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Value: 26,
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Timestamp: 200,
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},
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{
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Value: 27,
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Timestamp: 300,
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},
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},
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},
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}
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exampleMatrixLength = len(exampleMatrix)
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)
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func init() {
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sortMatrix(exampleMatrix)
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}
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func TestGetBucketCountsAtTime(t *testing.T) {
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cases := []struct {
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matrix model.Matrix
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length int
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timeIdx int
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expected []int
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}{
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{
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exampleMatrix,
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exampleMatrixLength,
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0,
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[]int{10, 15, 5, 1},
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},
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{
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exampleMatrix,
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exampleMatrixLength,
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1,
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[]int{11, 15, 5, 1},
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},
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{
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exampleMatrix,
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exampleMatrixLength,
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2,
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[]int{11, 16, 10, 3},
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},
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}
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for _, c := range cases {
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t.Run(fmt.Sprintf("exampleMatrix@%d", c.timeIdx), func(t *testing.T) {
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res, err := getBucketCountsAtTime(c.matrix, c.length, c.timeIdx)
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require.NoError(t, err)
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require.Equal(t, c.expected, res)
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})
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}
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}
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func TestCalcClassicBucketStatistics(t *testing.T) {
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cases := []struct {
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matrix model.Matrix
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expected *statistics
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}{
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{
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exampleMatrix,
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&statistics{
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minPop: 4,
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avgPop: 4,
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maxPop: 4,
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total: 4,
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},
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},
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}
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for i, c := range cases {
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t.Run(fmt.Sprintf("case %d", i), func(t *testing.T) {
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res, err := calcClassicBucketStatistics(c.matrix)
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require.NoError(t, err)
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require.Equal(t, c.expected, res)
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})
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}
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}
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