85 lines
2.4 KiB
Go
85 lines
2.4 KiB
Go
// Copyright 2020 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 storage
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import (
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"math"
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"github.com/prometheus/prometheus/pkg/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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"github.com/prometheus/prometheus/tsdb/tsdbutil"
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)
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type MockSeries struct {
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labels labels.Labels
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SampleIteratorFn func() chunkenc.Iterator
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}
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func NewListSeries(lset labels.Labels, samples []tsdbutil.Sample) *MockSeries {
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return &MockSeries{
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labels: lset,
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SampleIteratorFn: func() chunkenc.Iterator {
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return NewListSeriesIterator(samples)
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},
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}
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}
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func (s *MockSeries) Labels() labels.Labels { return s.labels }
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func (s *MockSeries) Iterator() chunkenc.Iterator { return s.SampleIteratorFn() }
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type MockChunkSeries struct {
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labels labels.Labels
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ChunkIteratorFn func() chunks.Iterator
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}
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func NewListChunkSeriesFromSamples(lset labels.Labels, samples ...[]tsdbutil.Sample) *MockChunkSeries {
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var chks []chunks.Meta
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return &MockChunkSeries{
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labels: lset,
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ChunkIteratorFn: func() chunks.Iterator {
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// Inefficient chunks encoding implementation, not caring about chunk size.
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for _, s := range samples {
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chks = append(chks, tsdbutil.ChunkFromSamples(s))
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}
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return NewListChunkSeriesIterator(chks...)
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},
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}
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}
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func (s *MockChunkSeries) Labels() labels.Labels { return s.labels }
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func (s *MockChunkSeries) Iterator() chunks.Iterator { return s.ChunkIteratorFn() }
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func ExpandSamples(iter chunkenc.Iterator) ([]tsdbutil.Sample, error) {
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var result []tsdbutil.Sample
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for iter.Next() {
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t, v := iter.At()
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// NaNs can't be compared normally, so substitute for another value.
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if math.IsNaN(v) {
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v = -42
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}
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result = append(result, sample{t, v})
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}
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return result, iter.Err()
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}
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func ExpandChunks(iter chunks.Iterator) ([]chunks.Meta, error) {
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var result []chunks.Meta
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for iter.Next() {
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result = append(result, iter.At())
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}
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return result, iter.Err()
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}
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