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vsphere-influxdb-go/vendor/github.com/influxdata/influxdb/tsdb/shard_internal_test.go

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2017-10-25 22:52:40 +02:00
package tsdb
import (
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"regexp"
"sort"
"strings"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/influxdata/influxdb/influxql"
"github.com/influxdata/influxdb/models"
)
func TestShard_MapType(t *testing.T) {
var sh *TempShard
setup := func(index string) {
sh = NewTempShard(index)
if err := sh.Open(); err != nil {
t.Fatal(err)
}
sh.MustWritePointsString(`
cpu,host=serverA,region=uswest value=100 0
cpu,host=serverA,region=uswest value=50,val2=5 10
cpu,host=serverB,region=uswest value=25 0
mem,host=serverA value=25i 0
mem,host=serverB value=50i,val3=t 10
_reserved,region=uswest value="foo" 0
`)
}
for _, index := range RegisteredIndexes() {
setup(index)
for _, tt := range []struct {
measurement string
field string
typ influxql.DataType
}{
{
measurement: "cpu",
field: "value",
typ: influxql.Float,
},
{
measurement: "cpu",
field: "host",
typ: influxql.Tag,
},
{
measurement: "cpu",
field: "region",
typ: influxql.Tag,
},
{
measurement: "cpu",
field: "val2",
typ: influxql.Float,
},
{
measurement: "cpu",
field: "unknown",
typ: influxql.Unknown,
},
{
measurement: "mem",
field: "value",
typ: influxql.Integer,
},
{
measurement: "mem",
field: "val3",
typ: influxql.Boolean,
},
{
measurement: "mem",
field: "host",
typ: influxql.Tag,
},
{
measurement: "unknown",
field: "unknown",
typ: influxql.Unknown,
},
{
measurement: "_fieldKeys",
field: "fieldKey",
typ: influxql.String,
},
{
measurement: "_fieldKeys",
field: "fieldType",
typ: influxql.String,
},
{
measurement: "_fieldKeys",
field: "unknown",
typ: influxql.Unknown,
},
{
measurement: "_series",
field: "key",
typ: influxql.String,
},
{
measurement: "_series",
field: "unknown",
typ: influxql.Unknown,
},
{
measurement: "_tagKeys",
field: "tagKey",
typ: influxql.String,
},
{
measurement: "_tagKeys",
field: "unknown",
typ: influxql.Unknown,
},
{
measurement: "_reserved",
field: "value",
typ: influxql.String,
},
{
measurement: "_reserved",
field: "region",
typ: influxql.Tag,
},
} {
name := fmt.Sprintf("%s_%s_%s", index, tt.measurement, tt.field)
t.Run(name, func(t *testing.T) {
typ, err := sh.mapType(tt.measurement, tt.field)
if err != nil {
t.Fatal(err)
}
if have, want := typ, tt.typ; have != want {
t.Errorf("unexpected data type: have=%#v want=%#v", have, want)
}
})
}
sh.Close()
}
}
func TestShard_MeasurementsByRegex(t *testing.T) {
var sh *TempShard
setup := func(index string) {
sh = NewTempShard(index)
if err := sh.Open(); err != nil {
t.Fatal(err)
}
sh.MustWritePointsString(`
cpu,host=serverA,region=uswest value=100 0
cpu,host=serverA,region=uswest value=50,val2=5 10
cpu,host=serverB,region=uswest value=25 0
mem,host=serverA value=25i 0
mem,host=serverB value=50i,val3=t 10
`)
}
for _, index := range RegisteredIndexes() {
setup(index)
for _, tt := range []struct {
regex string
measurements []string
}{
{regex: `cpu`, measurements: []string{"cpu"}},
{regex: `mem`, measurements: []string{"mem"}},
{regex: `cpu|mem`, measurements: []string{"cpu", "mem"}},
{regex: `gpu`, measurements: []string{}},
{regex: `pu`, measurements: []string{"cpu"}},
{regex: `p|m`, measurements: []string{"cpu", "mem"}},
} {
t.Run(index+"_"+tt.regex, func(t *testing.T) {
re := regexp.MustCompile(tt.regex)
measurements, err := sh.MeasurementNamesByRegex(re)
if err != nil {
t.Fatal(err)
}
mstrings := make([]string, 0, len(measurements))
for _, name := range measurements {
mstrings = append(mstrings, string(name))
}
sort.Strings(mstrings)
if diff := cmp.Diff(tt.measurements, mstrings, cmpopts.EquateEmpty()); diff != "" {
t.Errorf("unexpected measurements:\n%s", diff)
}
})
}
sh.Close()
}
}
// TempShard represents a test wrapper for Shard that uses temporary
// filesystem paths.
type TempShard struct {
*Shard
path string
}
// NewTempShard returns a new instance of TempShard with temp paths.
func NewTempShard(index string) *TempShard {
// Create temporary path for data and WAL.
dir, err := ioutil.TempDir("", "influxdb-tsdb-")
if err != nil {
panic(err)
}
// Build engine options.
opt := NewEngineOptions()
opt.IndexVersion = index
opt.Config.WALDir = filepath.Join(dir, "wal")
if index == "inmem" {
opt.InmemIndex, _ = NewInmemIndex(path.Base(dir))
}
return &TempShard{
Shard: NewShard(0,
filepath.Join(dir, "data", "db0", "rp0", "1"),
filepath.Join(dir, "wal", "db0", "rp0", "1"),
opt,
),
path: dir,
}
}
// Close closes the shard and removes all underlying data.
func (sh *TempShard) Close() error {
defer os.RemoveAll(sh.path)
return sh.Shard.Close()
}
// MustWritePointsString parses the line protocol (with second precision) and
// inserts the resulting points into the shard. Panic on error.
func (sh *TempShard) MustWritePointsString(s string) {
a, err := models.ParsePointsWithPrecision([]byte(strings.TrimSpace(s)), time.Time{}, "s")
if err != nil {
panic(err)
}
if err := sh.WritePoints(a); err != nil {
panic(err)
}
}