prometheus/storage/metric/tiered/test_helpers.go

132 lines
3.3 KiB
Go

// Copyright 2013 Prometheus Team
// 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 tiered
import (
"fmt"
"testing"
"time"
clientmodel "github.com/prometheus/client_golang/model"
"github.com/prometheus/prometheus/storage/metric"
"github.com/prometheus/prometheus/utility/test"
)
var (
// ``hg clone https://code.google.com/p/go ; cd go ; hg log | tail -n 20``
usEastern, _ = time.LoadLocation("US/Eastern")
testInstant = clientmodel.TimestampFromTime(time.Date(1972, 7, 18, 19, 5, 45, 0, usEastern).In(time.UTC))
)
func testAppendSamples(p metric.Persistence, s *clientmodel.Sample, t testing.TB) {
err := p.AppendSamples(clientmodel.Samples{s})
if err != nil {
t.Fatal(err)
}
}
func buildLevelDBTestPersistencesMaker(name string, t testing.TB) func() (metric.Persistence, test.Closer) {
return func() (metric.Persistence, test.Closer) {
temporaryDirectory := test.NewTemporaryDirectory("get_value_at_time", t)
p, err := NewLevelDBPersistence(temporaryDirectory.Path())
if err != nil {
t.Errorf("Could not start up LevelDB: %q\n", err)
}
return p, temporaryDirectory
}
}
func buildLevelDBTestPersistence(name string, f func(p metric.Persistence, t testing.TB)) func(t testing.TB) {
return func(t testing.TB) {
temporaryDirectory := test.NewTemporaryDirectory(fmt.Sprintf("test_leveldb_%s", name), t)
defer temporaryDirectory.Close()
p, err := NewLevelDBPersistence(temporaryDirectory.Path())
if err != nil {
t.Errorf("Could not create LevelDB Metric Persistence: %q\n", err)
}
defer p.Close()
f(p, t)
}
}
func buildMemoryTestPersistence(f func(p metric.Persistence, t testing.TB)) func(t testing.TB) {
return func(t testing.TB) {
p := NewMemorySeriesStorage(MemorySeriesOptions{})
defer p.Close()
f(p, t)
}
}
type testTieredStorageCloser struct {
storage *TieredStorage
directory test.Closer
}
func (t *testTieredStorageCloser) Close() {
t.storage.Close()
t.directory.Close()
}
func NewTestTieredStorage(t testing.TB) (*TieredStorage, test.Closer) {
directory := test.NewTemporaryDirectory("test_tiered_storage", t)
storage, err := NewTieredStorage(2500, 1000, 5*time.Second, 0, directory.Path())
if err != nil {
if storage != nil {
storage.Close()
}
directory.Close()
t.Fatalf("Error creating storage: %s", err)
}
if storage == nil {
directory.Close()
t.Fatalf("storage == nil")
}
started := make(chan bool)
go storage.Serve(started)
<-started
closer := &testTieredStorageCloser{
storage: storage,
directory: directory,
}
return storage, closer
}
func labelMatchersFromLabelSet(l clientmodel.LabelSet) metric.LabelMatchers {
m := make(metric.LabelMatchers, 0, len(l))
for k, v := range l {
m = append(m, &metric.LabelMatcher{
Type: metric.Equal,
Name: k,
Value: v,
})
}
return m
}