influxdb/tsdb/tsm1/array_cursor_test.go

136 lines
2.8 KiB
Go

package tsm1
import (
"context"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/influxdata/influxdb/pkg/fs"
)
type keyValues struct {
key string
values []Value
}
func MustTempDir() string {
dir, err := ioutil.TempDir("", "tsm1-test")
if err != nil {
panic(fmt.Sprintf("failed to create temp dir: %v", err))
}
return dir
}
func MustTempFile(dir string) *os.File {
f, err := ioutil.TempFile(dir, "tsm1test")
if err != nil {
panic(fmt.Sprintf("failed to create temp file: %v", err))
}
return f
}
func newFiles(dir string, values ...keyValues) ([]string, error) {
var files []string
id := 1
for _, v := range values {
f := MustTempFile(dir)
w, err := NewTSMWriter(f)
if err != nil {
return nil, err
}
if err := w.Write([]byte(v.key), v.values); err != nil {
return nil, err
}
if err := w.WriteIndex(); err != nil {
return nil, err
}
if err := w.Close(); err != nil {
return nil, err
}
newName := filepath.Join(filepath.Dir(f.Name()), DefaultFormatFileName(id, 1)+".tsm")
if err := fs.RenameFile(f.Name(), newName); err != nil {
return nil, err
}
id++
files = append(files, newName)
}
return files, nil
}
func TestFileStore_DuplicatePoints(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
fs := NewFileStore(dir)
makeVals := func(ts ...int64) []Value {
vals := make([]Value, len(ts))
for i, t := range ts {
vals[i] = NewFloatValue(t, 1.01)
}
return vals
}
// Setup 3 files
data := []keyValues{
{"m,_field=v#!~#v", makeVals(21)},
{"m,_field=v#!~#v", makeVals(44)},
{"m,_field=v#!~#v", makeVals(40, 46)},
{"m,_field=v#!~#v", makeVals(46, 51)},
}
files, err := newFiles(dir, data...)
if err != nil {
t.Fatalf("unexpected error creating files: %v", err)
}
_ = fs.Replace(nil, files)
t.Run("ascending", func(t *testing.T) {
const START, END = 21, 100
kc := fs.KeyCursor(context.Background(), []byte("m,_field=v#!~#v"), START, true)
defer kc.Close()
cur := newFloatArrayAscendingCursor()
cur.reset(START, END, nil, kc)
var got []int64
ar := cur.Next()
for ar.Len() > 0 {
got = append(got, ar.Timestamps...)
ar = cur.Next()
}
if exp := []int64{21, 40, 44, 46, 51}; !cmp.Equal(got, exp) {
t.Errorf("unexpected values; -got/+exp\n%s", cmp.Diff(got, exp))
}
})
t.Run("descending", func(t *testing.T) {
const START, END = 51, 0
kc := fs.KeyCursor(context.Background(), []byte("m,_field=v#!~#v"), START, false)
defer kc.Close()
cur := newFloatArrayDescendingCursor()
cur.reset(START, END, nil, kc)
var got []int64
ar := cur.Next()
for ar.Len() > 0 {
got = append(got, ar.Timestamps...)
ar = cur.Next()
}
if exp := []int64{51, 46, 44, 40, 21}; !cmp.Equal(got, exp) {
t.Errorf("unexpected values; -got/+exp\n%s", cmp.Diff(got, exp))
}
})
}