prometheus/util/teststorage/storage.go
Bartlomiej Plotka 34426766d8 Unify Iterator interfaces. All point to storage now.
This is part of https://github.com/prometheus/prometheus/pull/5882 that can be done to simplify things.
All todos I added will be fixed in follow up PRs.

* querier.Querier, querier.Appender, querier.SeriesSet, and querier.Series interfaces merged
with storage interface.go. All imports that.
* querier.SeriesIterator replaced by chunkenc.Iterator
* Added chunkenc.Iterator.Seek method and tests for xor implementation (?)
* Since we properly handle SelectParams for Select methods I adjusted min max
based on that. This should help in terms of performance for queries with functions like offset.
* added Seek to deletedIterator and test.
* storage/tsdb was removed as it was only a unnecessary glue with incompatible structs.

No logic was changed, only different source of abstractions, so no need for benchmarks.

Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
2020-02-17 18:03:54 +00:00

53 lines
1.4 KiB
Go

// Copyright 2017 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package teststorage
import (
"io/ioutil"
"os"
"github.com/prometheus/prometheus/storage"
"github.com/prometheus/prometheus/tsdb"
"github.com/prometheus/prometheus/util/testutil"
)
// New returns a new storage for testing purposes
// that removes all associated files on closing.
func New(t testutil.T) storage.Storage {
dir, err := ioutil.TempDir("", "test_storage")
if err != nil {
t.Fatalf("Opening test dir failed: %s", err)
}
// Tests just load data for a series sequentially. Thus we
// need a long appendable window.
db, err := tsdb.Open(dir, nil, nil, nil)
if err != nil {
t.Fatalf("Opening test storage failed: %s", err)
}
return testStorage{Storage: db, dir: dir}
}
type testStorage struct {
storage.Storage
dir string
}
func (s testStorage) Close() error {
if err := s.Storage.Close(); err != nil {
return err
}
return os.RemoveAll(s.dir)
}