555 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			555 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			Go
		
	
	
	
| // Copyright 2021 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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| 
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| package tsdb
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| 
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| import (
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| 	"fmt"
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| 	"sync"
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| 	"testing"
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| 
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| 	"github.com/stretchr/testify/require"
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| 
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| 	"github.com/prometheus/prometheus/model/labels"
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| 	"github.com/prometheus/prometheus/tsdb/chunkenc"
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| 	"github.com/prometheus/prometheus/tsdb/chunks"
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| )
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| 
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| func TestBoundedChunk(t *testing.T) {
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| 	tests := []struct {
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| 		name           string
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| 		inputChunk     chunkenc.Chunk
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| 		inputMinT      int64
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| 		inputMaxT      int64
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| 		initialSeek    int64
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| 		seekIsASuccess bool
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| 		expSamples     []sample
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| 	}{
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| 		{
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| 			name:       "if there are no samples it returns nothing",
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| 			inputChunk: newTestChunk(0),
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| 			expSamples: nil,
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| 		},
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| 		{
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| 			name:       "bounds represent a single sample",
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| 			inputChunk: newTestChunk(10),
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| 			expSamples: []sample{
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| 				{0, 0, nil, nil},
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| 			},
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| 		},
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| 		{
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| 			name:       "if there are bounds set only samples within them are returned",
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| 			inputChunk: newTestChunk(10),
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| 			inputMinT:  1,
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| 			inputMaxT:  8,
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| 			expSamples: []sample{
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| 				{1, 1, nil, nil},
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| 				{2, 2, nil, nil},
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| 				{3, 3, nil, nil},
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| 				{4, 4, nil, nil},
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| 				{5, 5, nil, nil},
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| 				{6, 6, nil, nil},
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| 				{7, 7, nil, nil},
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| 				{8, 8, nil, nil},
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| 			},
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| 		},
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| 		{
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| 			name:       "if bounds set and only maxt is less than actual maxt",
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| 			inputChunk: newTestChunk(10),
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| 			inputMinT:  0,
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| 			inputMaxT:  5,
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| 			expSamples: []sample{
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| 				{0, 0, nil, nil},
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| 				{1, 1, nil, nil},
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| 				{2, 2, nil, nil},
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| 				{3, 3, nil, nil},
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| 				{4, 4, nil, nil},
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| 				{5, 5, nil, nil},
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| 			},
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| 		},
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| 		{
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| 			name:       "if bounds set and only mint is more than actual mint",
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| 			inputChunk: newTestChunk(10),
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| 			inputMinT:  5,
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| 			inputMaxT:  9,
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| 			expSamples: []sample{
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| 				{5, 5, nil, nil},
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| 				{6, 6, nil, nil},
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| 				{7, 7, nil, nil},
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| 				{8, 8, nil, nil},
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| 				{9, 9, nil, nil},
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| 			},
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| 		},
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| 		{
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| 			name:           "if there are bounds set with seek before mint",
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| 			inputChunk:     newTestChunk(10),
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| 			inputMinT:      3,
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| 			inputMaxT:      7,
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| 			initialSeek:    1,
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| 			seekIsASuccess: true,
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| 			expSamples: []sample{
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| 				{3, 3, nil, nil},
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| 				{4, 4, nil, nil},
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| 				{5, 5, nil, nil},
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| 				{6, 6, nil, nil},
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| 				{7, 7, nil, nil},
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| 			},
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| 		},
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| 		{
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| 			name:           "if there are bounds set with seek between mint and maxt",
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| 			inputChunk:     newTestChunk(10),
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| 			inputMinT:      3,
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| 			inputMaxT:      7,
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| 			initialSeek:    5,
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| 			seekIsASuccess: true,
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| 			expSamples: []sample{
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| 				{5, 5, nil, nil},
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| 				{6, 6, nil, nil},
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| 				{7, 7, nil, nil},
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| 			},
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| 		},
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| 		{
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| 			name:           "if there are bounds set with seek after maxt",
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| 			inputChunk:     newTestChunk(10),
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| 			inputMinT:      3,
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| 			inputMaxT:      7,
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| 			initialSeek:    8,
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| 			seekIsASuccess: false,
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| 		},
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| 	}
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| 	for _, tc := range tests {
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| 		t.Run(fmt.Sprintf("name=%s", tc.name), func(t *testing.T) {
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| 			iterable := boundedIterable{tc.inputChunk, tc.inputMinT, tc.inputMaxT}
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| 
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| 			var samples []sample
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| 			it := iterable.Iterator(nil)
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| 
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| 			if tc.initialSeek != 0 {
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| 				// Testing Seek()
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| 				val := it.Seek(tc.initialSeek)
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| 				require.Equal(t, tc.seekIsASuccess, val == chunkenc.ValFloat)
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| 				if val == chunkenc.ValFloat {
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| 					t, v := it.At()
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| 					samples = append(samples, sample{t, v, nil, nil})
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| 				}
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| 			}
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| 
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| 			// Testing Next()
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| 			for it.Next() == chunkenc.ValFloat {
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| 				t, v := it.At()
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| 				samples = append(samples, sample{t, v, nil, nil})
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| 			}
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| 
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| 			// it.Next() should keep returning no  value.
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| 			for i := 0; i < 10; i++ {
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| 				require.Equal(t, chunkenc.ValNone, it.Next())
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| 			}
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| 
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| 			require.Equal(t, tc.expSamples, samples)
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| 		})
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| 	}
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| }
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| 
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| func newTestChunk(numSamples int) chunkenc.Chunk {
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| 	xor := chunkenc.NewXORChunk()
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| 	a, _ := xor.Appender()
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| 	for i := 0; i < numSamples; i++ {
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| 		a.Append(int64(i), float64(i))
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| 	}
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| 	return xor
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| }
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| 
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| // TestMemSeries_chunk runs a series of tests on memSeries.chunk() calls.
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| // It will simulate various conditions to ensure all code paths in that function are covered.
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| func TestMemSeries_chunk(t *testing.T) {
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| 	const chunkRange int64 = 100
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| 	const chunkStep int64 = 5
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| 
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| 	appendSamples := func(t *testing.T, s *memSeries, start, end int64, cdm *chunks.ChunkDiskMapper) {
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| 		for i := start; i < end; i += chunkStep {
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| 			ok, _ := s.append(i, float64(i), 0, chunkOpts{
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| 				chunkDiskMapper: cdm,
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| 				chunkRange:      chunkRange,
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| 				samplesPerChunk: DefaultSamplesPerChunk,
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| 			})
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| 			require.True(t, ok, "sample append failed")
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| 		}
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| 	}
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| 
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| 	type setupFn func(*testing.T, *memSeries, *chunks.ChunkDiskMapper)
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| 
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| 	type callOutput uint8
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| 	const (
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| 		outOpenHeadChunk   callOutput = iota // memSeries.chunk() call returned memSeries.headChunks with headChunk=true & isOpen=true
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| 		outClosedHeadChunk                   // memSeries.chunk() call returned memSeries.headChunks with headChunk=true & isOpen=false
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| 		outMmappedChunk                      // memSeries.chunk() call returned a chunk from memSeries.mmappedChunks with headChunk=false
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| 		outErr                               // memSeries.chunk() call returned an error
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| 	)
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| 
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| 	tests := []struct {
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| 		name     string
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| 		setup    setupFn            // optional function called just before the test memSeries.chunk() call
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| 		inputID  chunks.HeadChunkID // requested chunk id for memSeries.chunk() call
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| 		expected callOutput
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| 	}{
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| 		{
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| 			name:     "call ix=0 on empty memSeries",
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| 			inputID:  0,
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| 			expected: outErr,
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| 		},
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| 		{
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| 			name:     "call ix=1 on empty memSeries",
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| 			inputID:  1,
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| 			expected: outErr,
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| 		},
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| 		{
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| 			name: "firstChunkID > ix",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange, cdm)
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| 				require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, chunkRange-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 				s.firstChunkID = 5
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| 			},
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| 			inputID:  1,
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| 			expected: outErr,
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| 		},
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| 		{
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| 			name: "call ix=0 on memSeries with no mmapped chunks",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange, cdm)
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| 				require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, chunkRange-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 			},
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| 			inputID:  0,
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| 			expected: outOpenHeadChunk,
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| 		},
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| 		{
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| 			name: "call ix=1 on memSeries with no mmapped chunks",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange, cdm)
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| 				require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, chunkRange-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 			},
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| 			inputID:  1,
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| 			expected: outErr,
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| 		},
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| 		{
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| 			name: "call ix=10 on memSeries with no mmapped chunks",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange, cdm)
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| 				require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, chunkRange-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 			},
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| 			inputID:  10,
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| 			expected: outErr,
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| 		},
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| 		{
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| 			name: "call ix=0 on memSeries with 3 mmapped chunks",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*4, cdm)
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| 				s.mmapChunks(cdm)
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| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 			},
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| 			inputID:  0,
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| 			expected: outMmappedChunk,
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| 		},
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| 		{
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| 			name: "call ix=1 on memSeries with 3 mmapped chunks",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*4, cdm)
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| 				s.mmapChunks(cdm)
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| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 			},
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| 			inputID:  1,
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| 			expected: outMmappedChunk,
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| 		},
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| 		{
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| 			name: "call ix=3 on memSeries with 3 mmapped chunks",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*4, cdm)
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| 				s.mmapChunks(cdm)
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| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 			},
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| 			inputID:  3,
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| 			expected: outOpenHeadChunk,
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| 		},
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| 		{
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| 			name: "call ix=0 on memSeries with 3 mmapped chunks and no headChunk",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*4, cdm)
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| 				s.mmapChunks(cdm)
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| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 				s.headChunks = nil
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| 			},
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| 			inputID:  0,
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| 			expected: outMmappedChunk,
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| 		},
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| 		{
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| 			name: "call ix=2 on memSeries with 3 mmapped chunks and no headChunk",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*4, cdm)
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| 				s.mmapChunks(cdm)
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| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 				s.headChunks = nil
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| 			},
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| 			inputID:  2,
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| 			expected: outMmappedChunk,
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| 		},
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| 		{
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| 			name: "call ix=3 on memSeries with 3 mmapped chunks and no headChunk",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*4, cdm)
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| 				s.mmapChunks(cdm)
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| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 				s.headChunks = nil
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| 			},
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| 			inputID:  3,
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| 			expected: outErr,
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| 		},
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| 		{
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| 			name: "call ix=1 on memSeries with 3 mmapped chunks and closed ChunkDiskMapper",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*4, cdm)
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| 				s.mmapChunks(cdm)
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| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 				cdm.Close()
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| 			},
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| 			inputID:  1,
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| 			expected: outErr,
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| 		},
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| 		{
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| 			name: "call ix=3 on memSeries with 3 mmapped chunks and closed ChunkDiskMapper",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*4, cdm)
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| 				s.mmapChunks(cdm)
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| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
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| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*4)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
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| 				cdm.Close()
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| 			},
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| 			inputID:  3,
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| 			expected: outOpenHeadChunk,
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| 		},
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| 		{
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| 			name: "call ix=0 on memSeries with 3 head chunks and no mmapped chunks",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*3, cdm)
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| 				require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
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| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
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| 				require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
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| 				require.Equal(t, (chunkRange*3)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
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| 			inputID:  0,
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| 			expected: outClosedHeadChunk,
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| 		},
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| 		{
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| 			name: "call ix=1 on memSeries with 3 head chunks and no mmapped chunks",
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| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
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| 				appendSamples(t, s, 0, chunkRange*3, cdm)
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| 				require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
 | |
| 				require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
 | |
| 				require.Equal(t, (chunkRange*3)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
 | |
| 			inputID:  1,
 | |
| 			expected: outClosedHeadChunk,
 | |
| 		},
 | |
| 		{
 | |
| 			name: "call ix=10 on memSeries with 3 head chunks and no mmapped chunks",
 | |
| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
 | |
| 				appendSamples(t, s, 0, chunkRange*3, cdm)
 | |
| 				require.Empty(t, s.mmappedChunks, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
 | |
| 				require.Equal(t, int64(0), s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
 | |
| 				require.Equal(t, (chunkRange*3)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
 | |
| 			inputID:  10,
 | |
| 			expected: outErr,
 | |
| 		},
 | |
| 		{
 | |
| 			name: "call ix=0 on memSeries with 3 head chunks and 3 mmapped chunks",
 | |
| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
 | |
| 				appendSamples(t, s, 0, chunkRange*4, cdm)
 | |
| 				s.mmapChunks(cdm)
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
 | |
| 
 | |
| 				appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
 | |
| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
 | |
| 				require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
 | |
| 			inputID:  0,
 | |
| 			expected: outMmappedChunk,
 | |
| 		},
 | |
| 		{
 | |
| 			name: "call ix=2 on memSeries with 3 head chunks and 3 mmapped chunks",
 | |
| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
 | |
| 				appendSamples(t, s, 0, chunkRange*4, cdm)
 | |
| 				s.mmapChunks(cdm)
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
 | |
| 
 | |
| 				appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
 | |
| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
 | |
| 				require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
 | |
| 			inputID:  2,
 | |
| 			expected: outMmappedChunk,
 | |
| 		},
 | |
| 		{
 | |
| 			name: "call ix=3 on memSeries with 3 head chunks and 3 mmapped chunks",
 | |
| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
 | |
| 				appendSamples(t, s, 0, chunkRange*4, cdm)
 | |
| 				s.mmapChunks(cdm)
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
 | |
| 
 | |
| 				appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
 | |
| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
 | |
| 				require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
 | |
| 			inputID:  3,
 | |
| 			expected: outClosedHeadChunk,
 | |
| 		},
 | |
| 		{
 | |
| 			name: "call ix=5 on memSeries with 3 head chunks and 3 mmapped chunks",
 | |
| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
 | |
| 				appendSamples(t, s, 0, chunkRange*4, cdm)
 | |
| 				s.mmapChunks(cdm)
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
 | |
| 
 | |
| 				appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
 | |
| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
 | |
| 				require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
 | |
| 			inputID:  5,
 | |
| 			expected: outOpenHeadChunk,
 | |
| 		},
 | |
| 		{
 | |
| 			name: "call ix=6 on memSeries with 3 head chunks and 3 mmapped chunks",
 | |
| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
 | |
| 				appendSamples(t, s, 0, chunkRange*4, cdm)
 | |
| 				s.mmapChunks(cdm)
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
 | |
| 
 | |
| 				appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
 | |
| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
 | |
| 				require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
 | |
| 			inputID:  6,
 | |
| 			expected: outErr,
 | |
| 		},
 | |
| 
 | |
| 		{
 | |
| 			name: "call ix=10 on memSeries with 3 head chunks and 3 mmapped chunks",
 | |
| 			setup: func(t *testing.T, s *memSeries, cdm *chunks.ChunkDiskMapper) {
 | |
| 				appendSamples(t, s, 0, chunkRange*4, cdm)
 | |
| 				s.mmapChunks(cdm)
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, 1, s.headChunks.len(), "wrong number of headChunks")
 | |
| 
 | |
| 				appendSamples(t, s, chunkRange*4, chunkRange*6, cdm)
 | |
| 				require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks")
 | |
| 				require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks")
 | |
| 				require.Equal(t, chunkRange*3, s.headChunks.oldest().minTime, "wrong minTime on last headChunks element")
 | |
| 				require.Equal(t, (chunkRange*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element")
 | |
| 			},
 | |
| 			inputID:  10,
 | |
| 			expected: outErr,
 | |
| 		},
 | |
| 	}
 | |
| 
 | |
| 	memChunkPool := &sync.Pool{
 | |
| 		New: func() interface{} {
 | |
| 			return &memChunk{}
 | |
| 		},
 | |
| 	}
 | |
| 
 | |
| 	for _, tc := range tests {
 | |
| 		t.Run(tc.name, func(t *testing.T) {
 | |
| 			dir := t.TempDir()
 | |
| 			chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize)
 | |
| 			require.NoError(t, err)
 | |
| 			defer func() {
 | |
| 				require.NoError(t, chunkDiskMapper.Close())
 | |
| 			}()
 | |
| 
 | |
| 			series := newMemSeries(labels.EmptyLabels(), 1, true)
 | |
| 
 | |
| 			if tc.setup != nil {
 | |
| 				tc.setup(t, series, chunkDiskMapper)
 | |
| 			}
 | |
| 
 | |
| 			chk, headChunk, isOpen, err := series.chunk(tc.inputID, chunkDiskMapper, memChunkPool)
 | |
| 			switch tc.expected {
 | |
| 			case outOpenHeadChunk:
 | |
| 				require.NoError(t, err, "unexpected error")
 | |
| 				require.True(t, headChunk, "expected a chunk with headChunk=true but got headChunk=%v", headChunk)
 | |
| 				require.True(t, isOpen, "expected a chunk with isOpen=true but got isOpen=%v", isOpen)
 | |
| 			case outClosedHeadChunk:
 | |
| 				require.NoError(t, err, "unexpected error")
 | |
| 				require.True(t, headChunk, "expected a chunk with headChunk=true but got headChunk=%v", headChunk)
 | |
| 				require.False(t, isOpen, "expected a chunk with isOpen=false but got isOpen=%v", isOpen)
 | |
| 			case outMmappedChunk:
 | |
| 				require.NoError(t, err, "unexpected error")
 | |
| 				require.False(t, headChunk, "expected a chunk with headChunk=false but got gc=%v", headChunk)
 | |
| 			case outErr:
 | |
| 				require.Nil(t, chk, "got a non-nil chunk reference returned with an error")
 | |
| 				require.Error(t, err)
 | |
| 			}
 | |
| 		})
 | |
| 	}
 | |
| }
 |