mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-24 21:24:05 -08:00
75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
// Copyright 2019 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 index
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestPostingsStats(t *testing.T) {
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stats := &maxHeap{}
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max := 3000000
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heapLength := 10
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stats.init(heapLength)
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for i := 0; i < max; i++ {
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item := Stat{
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Name: "Label-da",
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Count: uint64(i),
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}
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stats.push(item)
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}
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stats.push(Stat{Name: "Stuff", Count: 3000000})
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data := stats.get()
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require.Equal(t, 10, len(data))
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for i := 0; i < heapLength; i++ {
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require.Equal(t, uint64(max-i), data[i].Count)
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}
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}
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func TestPostingsStats2(t *testing.T) {
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stats := &maxHeap{}
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heapLength := 10
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stats.init(heapLength)
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stats.push(Stat{Name: "Stuff", Count: 10})
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stats.push(Stat{Name: "Stuff", Count: 11})
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stats.push(Stat{Name: "Stuff", Count: 1})
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stats.push(Stat{Name: "Stuff", Count: 6})
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data := stats.get()
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require.Equal(t, 4, len(data))
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require.Equal(t, uint64(11), data[0].Count)
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}
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func BenchmarkPostingStatsMaxHep(b *testing.B) {
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stats := &maxHeap{}
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max := 9000000
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heapLength := 10
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b.ResetTimer()
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for n := 0; n < b.N; n++ {
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stats.init(heapLength)
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for i := 0; i < max; i++ {
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item := Stat{
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Name: "Label-da",
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Count: uint64(i),
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}
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stats.push(item)
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}
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stats.get()
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}
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}
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