influxdb/tsdb/series_index_test.go

142 lines
4.1 KiB
Go

package tsdb_test
import (
"bytes"
"path/filepath"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/influxdata/influxdb/models"
"github.com/influxdata/influxdb/tsdb"
)
func toTypedSeriesID(id uint64) tsdb.SeriesIDTyped {
return tsdb.NewSeriesID(id).WithType(models.Empty)
}
func TestSeriesIndex_Count(t *testing.T) {
dir, cleanup := MustTempDir()
defer cleanup()
idx := tsdb.NewSeriesIndex(filepath.Join(dir, "index"))
if err := idx.Open(); err != nil {
t.Fatal(err)
}
defer idx.Close()
key0 := tsdb.AppendSeriesKey(nil, []byte("m0"), nil)
idx.Insert(key0, toTypedSeriesID(1), 10)
key1 := tsdb.AppendSeriesKey(nil, []byte("m1"), nil)
idx.Insert(key1, toTypedSeriesID(2), 20)
if n := idx.Count(); n != 2 {
t.Fatalf("unexpected count: %d", n)
}
}
func TestSeriesIndex_Delete(t *testing.T) {
dir, cleanup := MustTempDir()
defer cleanup()
idx := tsdb.NewSeriesIndex(filepath.Join(dir, "index"))
if err := idx.Open(); err != nil {
t.Fatal(err)
}
defer idx.Close()
key0 := tsdb.AppendSeriesKey(nil, []byte("m0"), nil)
idx.Insert(key0, toTypedSeriesID(1), 10)
key1 := tsdb.AppendSeriesKey(nil, []byte("m1"), nil)
idx.Insert(key1, toTypedSeriesID(2), 20)
idx.Delete(tsdb.NewSeriesID(1))
if !idx.IsDeleted(tsdb.NewSeriesID(1)) {
t.Fatal("expected deletion")
} else if idx.IsDeleted(tsdb.NewSeriesID(2)) {
t.Fatal("expected series to exist")
}
if exp, got := idx.Count(), uint64(1); exp != got {
t.Fatalf("Count()=%d, expected %d", exp, got)
}
}
func TestSeriesIndex_FindIDBySeriesKey(t *testing.T) {
dir, cleanup := MustTempDir()
defer cleanup()
idx := tsdb.NewSeriesIndex(filepath.Join(dir, "index"))
if err := idx.Open(); err != nil {
t.Fatal(err)
}
defer idx.Close()
key0 := tsdb.AppendSeriesKey(nil, []byte("m0"), nil)
idx.Insert(key0, toTypedSeriesID(1), 10)
key1 := tsdb.AppendSeriesKey(nil, []byte("m1"), nil)
idx.Insert(key1, toTypedSeriesID(2), 20)
badKey := tsdb.AppendSeriesKey(nil, []byte("not_found"), nil)
if id := idx.FindIDBySeriesKey(nil, key0); id != toTypedSeriesID(1) {
t.Fatalf("unexpected id(0): %d", id)
} else if id := idx.FindIDBySeriesKey(nil, key1); id != toTypedSeriesID(2) {
t.Fatalf("unexpected id(1): %d", id)
} else if id := idx.FindIDBySeriesKey(nil, badKey); !id.IsZero() {
t.Fatalf("unexpected id(2): %d", id)
}
if id := idx.FindIDByNameTags(nil, []byte("m0"), nil, nil); id != toTypedSeriesID(1) {
t.Fatalf("unexpected id(0): %d", id)
} else if id := idx.FindIDByNameTags(nil, []byte("m1"), nil, nil); id != toTypedSeriesID(2) {
t.Fatalf("unexpected id(1): %d", id)
} else if id := idx.FindIDByNameTags(nil, []byte("not_found"), nil, nil); !id.IsZero() {
t.Fatalf("unexpected id(2): %d", id)
}
}
func TestSeriesIndex_FindOffsetByID(t *testing.T) {
dir, cleanup := MustTempDir()
defer cleanup()
idx := tsdb.NewSeriesIndex(filepath.Join(dir, "index"))
if err := idx.Open(); err != nil {
t.Fatal(err)
}
defer idx.Close()
idx.Insert(tsdb.AppendSeriesKey(nil, []byte("m0"), nil), toTypedSeriesID(1), 10)
idx.Insert(tsdb.AppendSeriesKey(nil, []byte("m1"), nil), toTypedSeriesID(2), 20)
if offset := idx.FindOffsetByID(tsdb.NewSeriesID(1)); offset != 10 {
t.Fatalf("unexpected offset(0): %d", offset)
} else if offset := idx.FindOffsetByID(tsdb.NewSeriesID(2)); offset != 20 {
t.Fatalf("unexpected offset(1): %d", offset)
} else if offset := idx.FindOffsetByID(tsdb.NewSeriesID(3)); offset != 0 {
t.Fatalf("unexpected offset(2): %d", offset)
}
}
func TestSeriesIndexHeader(t *testing.T) {
// Verify header initializes correctly.
hdr := tsdb.NewSeriesIndexHeader()
if hdr.Version != tsdb.SeriesIndexVersion {
t.Fatalf("unexpected version: %d", hdr.Version)
}
hdr.MaxSeriesID = tsdb.NewSeriesID(10)
hdr.MaxOffset = 20
hdr.Count = 30
hdr.Capacity = 40
hdr.KeyIDMap.Offset, hdr.KeyIDMap.Size = 50, 60
hdr.IDOffsetMap.Offset, hdr.IDOffsetMap.Size = 70, 80
// Marshal/unmarshal.
var buf bytes.Buffer
if _, err := hdr.WriteTo(&buf); err != nil {
t.Fatal(err)
} else if other, err := tsdb.ReadSeriesIndexHeader(buf.Bytes()); err != nil {
t.Fatal(err)
} else if diff := cmp.Diff(hdr, other); diff != "" {
t.Fatal(diff)
}
}