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387 lines
11 KiB
387 lines
11 KiB
// Copyright 2018 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 record |
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import ( |
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"math/rand" |
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"testing" |
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"github.com/stretchr/testify/require" |
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"github.com/prometheus/prometheus/model/histogram" |
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"github.com/prometheus/prometheus/model/labels" |
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"github.com/prometheus/prometheus/tsdb/encoding" |
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"github.com/prometheus/prometheus/tsdb/tombstones" |
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"github.com/prometheus/prometheus/util/testutil" |
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) |
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func TestRecord_EncodeDecode(t *testing.T) { |
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var enc Encoder |
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dec := NewDecoder(labels.NewSymbolTable()) |
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series := []RefSeries{ |
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{ |
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Ref: 100, |
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Labels: labels.FromStrings("abc", "def", "123", "456"), |
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}, { |
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Ref: 1, |
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Labels: labels.FromStrings("abc", "def2", "1234", "4567"), |
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}, { |
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Ref: 435245, |
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Labels: labels.FromStrings("xyz", "def", "foo", "bar"), |
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}, |
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} |
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decSeries, err := dec.Series(enc.Series(series, nil), nil) |
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require.NoError(t, err) |
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testutil.RequireEqual(t, series, decSeries) |
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metadata := []RefMetadata{ |
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{ |
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Ref: 100, |
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Type: uint8(Counter), |
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Unit: "", |
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Help: "some magic counter", |
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}, |
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{ |
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Ref: 1, |
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Type: uint8(Counter), |
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Unit: "seconds", |
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Help: "CPU time counter", |
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}, |
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{ |
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Ref: 147741, |
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Type: uint8(Gauge), |
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Unit: "percentage", |
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Help: "current memory usage", |
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}, |
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} |
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decMetadata, err := dec.Metadata(enc.Metadata(metadata, nil), nil) |
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require.NoError(t, err) |
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require.Equal(t, metadata, decMetadata) |
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samples := []RefSample{ |
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{Ref: 0, T: 12423423, V: 1.2345}, |
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{Ref: 123, T: -1231, V: -123}, |
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{Ref: 2, T: 0, V: 99999}, |
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} |
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decSamples, err := dec.Samples(enc.Samples(samples, nil), nil) |
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require.NoError(t, err) |
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require.Equal(t, samples, decSamples) |
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// Intervals get split up into single entries. So we don't get back exactly |
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// what we put in. |
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tstones := []tombstones.Stone{ |
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{Ref: 123, Intervals: tombstones.Intervals{ |
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{Mint: -1000, Maxt: 1231231}, |
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{Mint: 5000, Maxt: 0}, |
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}}, |
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{Ref: 13, Intervals: tombstones.Intervals{ |
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{Mint: -1000, Maxt: -11}, |
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{Mint: 5000, Maxt: 1000}, |
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}}, |
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} |
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decTstones, err := dec.Tombstones(enc.Tombstones(tstones, nil), nil) |
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require.NoError(t, err) |
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require.Equal(t, []tombstones.Stone{ |
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{Ref: 123, Intervals: tombstones.Intervals{{Mint: -1000, Maxt: 1231231}}}, |
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{Ref: 123, Intervals: tombstones.Intervals{{Mint: 5000, Maxt: 0}}}, |
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{Ref: 13, Intervals: tombstones.Intervals{{Mint: -1000, Maxt: -11}}}, |
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{Ref: 13, Intervals: tombstones.Intervals{{Mint: 5000, Maxt: 1000}}}, |
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}, decTstones) |
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exemplars := []RefExemplar{ |
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{Ref: 0, T: 12423423, V: 1.2345, Labels: labels.FromStrings("trace_id", "qwerty")}, |
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{Ref: 123, T: -1231, V: -123, Labels: labels.FromStrings("trace_id", "asdf")}, |
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{Ref: 2, T: 0, V: 99999, Labels: labels.FromStrings("trace_id", "zxcv")}, |
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} |
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decExemplars, err := dec.Exemplars(enc.Exemplars(exemplars, nil), nil) |
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require.NoError(t, err) |
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testutil.RequireEqual(t, exemplars, decExemplars) |
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histograms := []RefHistogramSample{ |
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{ |
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Ref: 56, |
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T: 1234, |
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H: &histogram.Histogram{ |
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Count: 5, |
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ZeroCount: 2, |
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ZeroThreshold: 0.001, |
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Sum: 18.4 * rand.Float64(), |
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Schema: 1, |
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PositiveSpans: []histogram.Span{ |
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{Offset: 0, Length: 2}, |
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{Offset: 1, Length: 2}, |
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}, |
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PositiveBuckets: []int64{1, 1, -1, 0}, |
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}, |
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}, |
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{ |
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Ref: 42, |
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T: 5678, |
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H: &histogram.Histogram{ |
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Count: 11, |
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ZeroCount: 4, |
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ZeroThreshold: 0.001, |
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Sum: 35.5, |
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Schema: 1, |
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PositiveSpans: []histogram.Span{ |
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{Offset: 0, Length: 2}, |
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{Offset: 2, Length: 2}, |
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}, |
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PositiveBuckets: []int64{1, 1, -1, 0}, |
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NegativeSpans: []histogram.Span{ |
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{Offset: 0, Length: 1}, |
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{Offset: 1, Length: 2}, |
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}, |
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NegativeBuckets: []int64{1, 2, -1}, |
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}, |
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}, |
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} |
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decHistograms, err := dec.HistogramSamples(enc.HistogramSamples(histograms, nil), nil) |
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require.NoError(t, err) |
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require.Equal(t, histograms, decHistograms) |
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floatHistograms := make([]RefFloatHistogramSample, len(histograms)) |
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for i, h := range histograms { |
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floatHistograms[i] = RefFloatHistogramSample{ |
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Ref: h.Ref, |
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T: h.T, |
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FH: h.H.ToFloat(nil), |
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} |
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} |
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decFloatHistograms, err := dec.FloatHistogramSamples(enc.FloatHistogramSamples(floatHistograms, nil), nil) |
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require.NoError(t, err) |
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require.Equal(t, floatHistograms, decFloatHistograms) |
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// Gauge integer histograms. |
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for i := range histograms { |
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histograms[i].H.CounterResetHint = histogram.GaugeType |
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} |
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decHistograms, err = dec.HistogramSamples(enc.HistogramSamples(histograms, nil), nil) |
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require.NoError(t, err) |
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require.Equal(t, histograms, decHistograms) |
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// Gauge float histograms. |
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for i := range floatHistograms { |
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floatHistograms[i].FH.CounterResetHint = histogram.GaugeType |
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} |
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decFloatHistograms, err = dec.FloatHistogramSamples(enc.FloatHistogramSamples(floatHistograms, nil), nil) |
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require.NoError(t, err) |
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require.Equal(t, floatHistograms, decFloatHistograms) |
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} |
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// TestRecord_Corrupted ensures that corrupted records return the correct error. |
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// Bugfix check for pull/521 and pull/523. |
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func TestRecord_Corrupted(t *testing.T) { |
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var enc Encoder |
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dec := NewDecoder(labels.NewSymbolTable()) |
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t.Run("Test corrupted series record", func(t *testing.T) { |
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series := []RefSeries{ |
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{ |
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Ref: 100, |
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Labels: labels.FromStrings("abc", "def", "123", "456"), |
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}, |
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} |
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corrupted := enc.Series(series, nil)[:8] |
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_, err := dec.Series(corrupted, nil) |
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require.Equal(t, err, encoding.ErrInvalidSize) |
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}) |
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t.Run("Test corrupted sample record", func(t *testing.T) { |
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samples := []RefSample{ |
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{Ref: 0, T: 12423423, V: 1.2345}, |
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} |
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corrupted := enc.Samples(samples, nil)[:8] |
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_, err := dec.Samples(corrupted, nil) |
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require.ErrorIs(t, err, encoding.ErrInvalidSize) |
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}) |
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t.Run("Test corrupted tombstone record", func(t *testing.T) { |
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tstones := []tombstones.Stone{ |
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{Ref: 123, Intervals: tombstones.Intervals{ |
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{Mint: -1000, Maxt: 1231231}, |
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{Mint: 5000, Maxt: 0}, |
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}}, |
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} |
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corrupted := enc.Tombstones(tstones, nil)[:8] |
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_, err := dec.Tombstones(corrupted, nil) |
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require.Equal(t, err, encoding.ErrInvalidSize) |
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}) |
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t.Run("Test corrupted exemplar record", func(t *testing.T) { |
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exemplars := []RefExemplar{ |
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{Ref: 0, T: 12423423, V: 1.2345, Labels: labels.FromStrings("trace_id", "asdf")}, |
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} |
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corrupted := enc.Exemplars(exemplars, nil)[:8] |
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_, err := dec.Exemplars(corrupted, nil) |
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require.ErrorIs(t, err, encoding.ErrInvalidSize) |
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}) |
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t.Run("Test corrupted metadata record", func(t *testing.T) { |
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meta := []RefMetadata{ |
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{Ref: 147, Type: uint8(Counter), Unit: "unit", Help: "help"}, |
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} |
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corrupted := enc.Metadata(meta, nil)[:8] |
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_, err := dec.Metadata(corrupted, nil) |
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require.ErrorIs(t, err, encoding.ErrInvalidSize) |
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}) |
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t.Run("Test corrupted histogram record", func(t *testing.T) { |
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histograms := []RefHistogramSample{ |
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{ |
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Ref: 56, |
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T: 1234, |
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H: &histogram.Histogram{ |
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Count: 5, |
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ZeroCount: 2, |
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ZeroThreshold: 0.001, |
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Sum: 18.4 * rand.Float64(), |
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Schema: 1, |
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PositiveSpans: []histogram.Span{ |
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{Offset: 0, Length: 2}, |
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{Offset: 1, Length: 2}, |
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}, |
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PositiveBuckets: []int64{1, 1, -1, 0}, |
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}, |
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}, |
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} |
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corrupted := enc.HistogramSamples(histograms, nil)[:8] |
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_, err := dec.HistogramSamples(corrupted, nil) |
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require.ErrorIs(t, err, encoding.ErrInvalidSize) |
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}) |
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} |
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func TestRecord_Type(t *testing.T) { |
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var enc Encoder |
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var dec Decoder |
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series := []RefSeries{{Ref: 100, Labels: labels.FromStrings("abc", "123")}} |
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recordType := dec.Type(enc.Series(series, nil)) |
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require.Equal(t, Series, recordType) |
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samples := []RefSample{{Ref: 123, T: 12345, V: 1.2345}} |
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recordType = dec.Type(enc.Samples(samples, nil)) |
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require.Equal(t, Samples, recordType) |
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tstones := []tombstones.Stone{{Ref: 1, Intervals: tombstones.Intervals{{Mint: 1, Maxt: 2}}}} |
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recordType = dec.Type(enc.Tombstones(tstones, nil)) |
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require.Equal(t, Tombstones, recordType) |
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metadata := []RefMetadata{{Ref: 147, Type: uint8(Counter), Unit: "unit", Help: "help"}} |
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recordType = dec.Type(enc.Metadata(metadata, nil)) |
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require.Equal(t, Metadata, recordType) |
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histograms := []RefHistogramSample{ |
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{ |
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Ref: 56, |
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T: 1234, |
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H: &histogram.Histogram{ |
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Count: 5, |
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ZeroCount: 2, |
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ZeroThreshold: 0.001, |
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Sum: 18.4 * rand.Float64(), |
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Schema: 1, |
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PositiveSpans: []histogram.Span{ |
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{Offset: 0, Length: 2}, |
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{Offset: 1, Length: 2}, |
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}, |
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PositiveBuckets: []int64{1, 1, -1, 0}, |
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}, |
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}, |
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} |
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recordType = dec.Type(enc.HistogramSamples(histograms, nil)) |
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require.Equal(t, HistogramSamples, recordType) |
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recordType = dec.Type(nil) |
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require.Equal(t, Unknown, recordType) |
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recordType = dec.Type([]byte{0}) |
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require.Equal(t, Unknown, recordType) |
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} |
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func TestRecord_MetadataDecodeUnknownExtraFields(t *testing.T) { |
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var enc encoding.Encbuf |
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var dec Decoder |
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// Write record type. |
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enc.PutByte(byte(Metadata)) |
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// Write first metadata entry, all known fields. |
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enc.PutUvarint64(101) |
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enc.PutByte(byte(Counter)) |
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enc.PutUvarint(2) |
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enc.PutUvarintStr(unitMetaName) |
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enc.PutUvarintStr("") |
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enc.PutUvarintStr(helpMetaName) |
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enc.PutUvarintStr("some magic counter") |
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// Write second metadata entry, known fields + unknown fields. |
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enc.PutUvarint64(99) |
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enc.PutByte(byte(Counter)) |
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enc.PutUvarint(3) |
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// Known fields. |
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enc.PutUvarintStr(unitMetaName) |
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enc.PutUvarintStr("seconds") |
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enc.PutUvarintStr(helpMetaName) |
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enc.PutUvarintStr("CPU time counter") |
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// Unknown fields. |
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enc.PutUvarintStr("an extra field name to be skipped") |
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enc.PutUvarintStr("with its value") |
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// Write third metadata entry, with unknown fields and different order. |
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enc.PutUvarint64(47250) |
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enc.PutByte(byte(Gauge)) |
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enc.PutUvarint(4) |
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enc.PutUvarintStr("extra name one") |
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enc.PutUvarintStr("extra value one") |
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enc.PutUvarintStr(helpMetaName) |
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enc.PutUvarintStr("current memory usage") |
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enc.PutUvarintStr("extra name two") |
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enc.PutUvarintStr("extra value two") |
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enc.PutUvarintStr(unitMetaName) |
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enc.PutUvarintStr("percentage") |
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// Should yield known fields for all entries and skip over unknown fields. |
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expectedMetadata := []RefMetadata{ |
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{ |
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Ref: 101, |
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Type: uint8(Counter), |
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Unit: "", |
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Help: "some magic counter", |
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}, { |
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Ref: 99, |
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Type: uint8(Counter), |
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Unit: "seconds", |
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Help: "CPU time counter", |
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}, { |
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Ref: 47250, |
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Type: uint8(Gauge), |
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Unit: "percentage", |
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Help: "current memory usage", |
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}, |
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} |
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decMetadata, err := dec.Metadata(enc.Get(), nil) |
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require.NoError(t, err) |
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require.Equal(t, expectedMetadata, decMetadata) |
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}
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