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ab1b1db128
* tsdb: fix issue where a new segment file is created for every chunk Signed-off-by: Charles Korn <charles.korn@grafana.com> * Address PR feedback Signed-off-by: Charles Korn <charles.korn@grafana.com> --------- Signed-off-by: Charles Korn <charles.korn@grafana.com>
61 lines
1.6 KiB
Go
61 lines
1.6 KiB
Go
// Copyright 2017 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 chunks
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import (
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"os"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/prometheus/tsdb/tsdbutil"
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)
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func TestReaderWithInvalidBuffer(t *testing.T) {
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b := realByteSlice([]byte{0x81, 0x81, 0x81, 0x81, 0x81, 0x81})
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r := &Reader{bs: []ByteSlice{b}}
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_, _, err := r.ChunkOrIterable(Meta{Ref: 0})
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require.Error(t, err)
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}
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func TestWriterWithDefaultSegmentSize(t *testing.T) {
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chk1, err := ChunkFromSamples([]Sample{
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sample{t: 10, f: 11},
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sample{t: 20, f: 12},
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sample{t: 30, f: 13},
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})
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require.NoError(t, err)
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chk2, err := ChunkFromSamples([]Sample{
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sample{t: 40, h: tsdbutil.GenerateTestHistogram(1)},
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sample{t: 50, h: tsdbutil.GenerateTestHistogram(2)},
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sample{t: 60, h: tsdbutil.GenerateTestHistogram(3)},
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})
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require.NoError(t, err)
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dir := t.TempDir()
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w, err := NewWriter(dir)
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require.NoError(t, err)
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err = w.WriteChunks(chk1, chk2)
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require.NoError(t, err)
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require.NoError(t, w.Close())
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d, err := os.ReadDir(dir)
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require.NoError(t, err)
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require.Len(t, d, 1, "expected only one segment to be created to hold both chunks")
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}
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