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432 lines
19 KiB
432 lines
19 KiB
// 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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package tsdb |
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import ( |
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"context" |
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"sync" |
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"testing" |
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"github.com/stretchr/testify/require" |
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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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// 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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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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type setupFn func(*testing.T, *memSeries, *chunks.ChunkDiskMapper) |
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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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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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}, |
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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") |
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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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}, |
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inputID: 1, |
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expected: outClosedHeadChunk, |
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}, |
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{ |
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name: "call ix=10 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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}, |
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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 head chunks and 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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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm) |
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks") |
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks") |
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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*6)-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=2 on memSeries with 3 head chunks and 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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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm) |
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks") |
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks") |
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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*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element") |
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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 head chunks and 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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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm) |
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks") |
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks") |
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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*6)-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: outClosedHeadChunk, |
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}, |
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{ |
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name: "call ix=5 on memSeries with 3 head chunks and 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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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm) |
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks") |
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks") |
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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*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element") |
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}, |
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inputID: 5, |
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expected: outOpenHeadChunk, |
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}, |
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{ |
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name: "call ix=6 on memSeries with 3 head chunks and 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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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm) |
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks") |
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks") |
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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*6)-chunkStep, s.headChunks.maxTime, "wrong maxTime on first headChunks element") |
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}, |
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inputID: 6, |
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expected: outErr, |
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}, |
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|
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{ |
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name: "call ix=10 on memSeries with 3 head chunks and 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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|
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appendSamples(t, s, chunkRange*4, chunkRange*6, cdm) |
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require.Equal(t, 3, s.headChunks.len(), "wrong number of headChunks") |
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require.Len(t, s.mmappedChunks, 3, "wrong number of mmappedChunks") |
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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*6)-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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|
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memChunkPool := &sync.Pool{ |
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New: func() interface{} { |
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return &memChunk{} |
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}, |
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} |
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|
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for _, tc := range tests { |
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t.Run(tc.name, func(t *testing.T) { |
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dir := t.TempDir() |
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chunkDiskMapper, err := chunks.NewChunkDiskMapper(nil, dir, chunkenc.NewPool(), chunks.DefaultWriteBufferSize, chunks.DefaultWriteQueueSize) |
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require.NoError(t, err) |
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defer func() { |
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require.NoError(t, chunkDiskMapper.Close()) |
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}() |
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series := newMemSeries(labels.EmptyLabels(), 1, 0, true) |
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|
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if tc.setup != nil { |
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tc.setup(t, series, chunkDiskMapper) |
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} |
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|
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chk, headChunk, isOpen, err := series.chunk(tc.inputID, chunkDiskMapper, memChunkPool) |
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switch tc.expected { |
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case outOpenHeadChunk: |
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require.NoError(t, err, "unexpected error") |
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require.True(t, headChunk, "expected a chunk with headChunk=true but got headChunk=%v", headChunk) |
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require.True(t, isOpen, "expected a chunk with isOpen=true but got isOpen=%v", isOpen) |
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case outClosedHeadChunk: |
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require.NoError(t, err, "unexpected error") |
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require.True(t, headChunk, "expected a chunk with headChunk=true but got headChunk=%v", headChunk) |
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require.False(t, isOpen, "expected a chunk with isOpen=false but got isOpen=%v", isOpen) |
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case outMmappedChunk: |
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require.NoError(t, err, "unexpected error") |
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require.False(t, headChunk, "expected a chunk with headChunk=false but got gc=%v", headChunk) |
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case outErr: |
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require.Nil(t, chk, "got a non-nil chunk reference returned with an error") |
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require.Error(t, err) |
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} |
|
}) |
|
} |
|
} |
|
|
|
func TestHeadIndexReader_PostingsForLabelMatching(t *testing.T) { |
|
testPostingsForLabelMatching(t, 0, func(t *testing.T, series []labels.Labels) IndexReader { |
|
opts := DefaultHeadOptions() |
|
opts.ChunkRange = 1000 |
|
opts.ChunkDirRoot = t.TempDir() |
|
h, err := NewHead(nil, nil, nil, nil, opts, nil) |
|
require.NoError(t, err) |
|
t.Cleanup(func() { |
|
require.NoError(t, h.Close()) |
|
}) |
|
app := h.Appender(context.Background()) |
|
for _, s := range series { |
|
app.Append(0, s, 0, 0) |
|
} |
|
require.NoError(t, app.Commit()) |
|
|
|
ir, err := h.Index() |
|
require.NoError(t, err) |
|
return ir |
|
}) |
|
}
|
|
|