2017-04-19 12:43:09 +00:00
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// 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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2019-08-09 01:35:39 +00:00
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package teststorage
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2016-12-25 10:12:57 +00:00
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import (
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"os"
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2020-02-10 16:19:58 +00:00
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"time"
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2016-12-25 10:12:57 +00:00
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2021-07-20 04:52:57 +00:00
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"github.com/prometheus/client_golang/prometheus"
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2021-09-13 19:19:20 +00:00
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"github.com/stretchr/testify/require"
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2021-11-08 14:23:17 +00:00
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"github.com/prometheus/prometheus/model/exemplar"
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"github.com/prometheus/prometheus/model/labels"
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2021-03-16 09:47:45 +00:00
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"github.com/prometheus/prometheus/storage"
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2020-02-06 15:58:38 +00:00
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"github.com/prometheus/prometheus/tsdb"
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2019-08-09 01:35:39 +00:00
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"github.com/prometheus/prometheus/util/testutil"
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2016-12-25 10:12:57 +00:00
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)
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2020-04-29 16:16:14 +00:00
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// New returns a new TestStorage for testing purposes
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2016-12-25 10:12:57 +00:00
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// that removes all associated files on closing.
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2020-04-29 16:16:14 +00:00
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func New(t testutil.T) *TestStorage {
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2022-04-27 09:24:36 +00:00
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dir, err := os.MkdirTemp("", "test_storage")
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2021-09-13 19:19:20 +00:00
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require.NoError(t, err, "unexpected error while opening test directory")
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2016-12-28 08:16:48 +00:00
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2017-05-22 09:53:08 +00:00
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// Tests just load data for a series sequentially. Thus we
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// need a long appendable window.
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2020-02-10 20:43:50 +00:00
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opts := tsdb.DefaultOptions()
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2020-02-11 16:34:09 +00:00
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opts.MinBlockDuration = int64(24 * time.Hour / time.Millisecond)
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opts.MaxBlockDuration = int64(24 * time.Hour / time.Millisecond)
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2022-01-02 22:46:03 +00:00
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opts.RetentionDuration = 0
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2021-06-05 14:29:32 +00:00
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db, err := tsdb.Open(dir, nil, nil, opts, tsdb.NewDBStats())
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2021-09-13 19:19:20 +00:00
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require.NoError(t, err, "unexpected error while opening test storage")
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2021-07-20 04:52:57 +00:00
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reg := prometheus.NewRegistry()
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eMetrics := tsdb.NewExemplarMetrics(reg)
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es, err := tsdb.NewCircularExemplarStorage(10, eMetrics)
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2021-09-13 19:19:20 +00:00
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require.NoError(t, err, "unexpected error while opening test exemplar storage")
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2021-03-16 09:47:45 +00:00
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return &TestStorage{DB: db, exemplarStorage: es, dir: dir}
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2016-12-25 10:12:57 +00:00
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}
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2020-04-29 16:16:14 +00:00
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type TestStorage struct {
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*tsdb.DB
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exemplarStorage tsdb.ExemplarStorage
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dir string
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2016-12-25 10:12:57 +00:00
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}
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2020-04-29 16:16:14 +00:00
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func (s TestStorage) Close() error {
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if err := s.DB.Close(); err != nil {
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2016-12-25 10:12:57 +00:00
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return err
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}
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return os.RemoveAll(s.dir)
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}
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2021-03-16 09:47:45 +00:00
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func (s TestStorage) ExemplarAppender() storage.ExemplarAppender {
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return s
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}
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func (s TestStorage) ExemplarQueryable() storage.ExemplarQueryable {
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return s.exemplarStorage
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}
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2021-11-06 10:10:04 +00:00
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func (s TestStorage) AppendExemplar(ref storage.SeriesRef, l labels.Labels, e exemplar.Exemplar) (storage.SeriesRef, error) {
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return ref, s.exemplarStorage.AddExemplar(l, e)
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}
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