featurebase/test/attr.go

89 lines
2.1 KiB
Go

// Copyright 2017 Pilosa Corp.
//
// 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 test
import (
"io/ioutil"
"os"
"runtime"
"sync"
"testing"
"github.com/pilosa/pilosa"
)
// AttrStore represents a test wrapper for pilosa.AttrStore.
type AttrStore struct {
*pilosa.AttrStore
}
// NewAttrStore returns a new instance of AttrStore.
func NewAttrStore() *AttrStore {
f, err := ioutil.TempFile("", "pilosa-attr-")
if err != nil {
panic(err)
}
f.Close()
os.Remove(f.Name())
return &AttrStore{AttrStore: pilosa.NewAttrStore(f.Name())}
}
func BenchmarkAttrStore_Duplicate(b *testing.B) {
s := MustOpenAttrStore()
defer s.Close()
// Set attributes.
const n = 5
for i := 0; i < n; i++ {
if err := s.SetAttrs(uint64(i), map[string]interface{}{"A": 100, "B": "foo", "C": true, "D": 100.2}); err != nil {
b.Fatal(err)
}
}
b.ReportAllocs()
b.ResetTimer()
// Update attributes with an existing subset.
cpuN := runtime.GOMAXPROCS(0)
var wg sync.WaitGroup
for i := 0; i < cpuN; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for j := 0; j < b.N/cpuN; j++ {
if err := s.SetAttrs(uint64(j%n), map[string]interface{}{"A": int64(100), "B": "foo", "D": 100.2}); err != nil {
b.Fatal(err)
}
}
}()
}
wg.Wait()
}
// MustOpenAttrStore returns a new, opened attribute store at a temporary path. Panic on error.
func MustOpenAttrStore() *AttrStore {
s := NewAttrStore()
if err := s.Open(); err != nil {
panic(err)
}
return s
}
// Close closes the database and removes the underlying data.
func (s *AttrStore) Close() error {
defer os.RemoveAll(s.Path())
return s.AttrStore.Close()
}