VictoriaMetrics/lib/storage/metaindex_row_test.go
2019-05-23 00:25:38 +03:00

100 lines
2.6 KiB
Go

package storage
import (
"fmt"
"reflect"
"testing"
"testing/quick"
)
func TestMetaindexRowReset(t *testing.T) {
var mr metaindexRow
mr.TSID.MetricID = 234
mr.TSID.AccountID = 342
mr.BlockHeadersCount = 1323
mr.MinTimestamp = -234
mr.MaxTimestamp = 8989
mr.IndexBlockOffset = 89439
mr.IndexBlockSize = 89984
var mrEmpty metaindexRow
mrEmpty.MinTimestamp = 1<<63 - 1
mrEmpty.MaxTimestamp = -1 << 63
if reflect.DeepEqual(&mr, &mrEmpty) {
t.Fatalf("mr=%+v cannot be equal to mrEmpty=%+v", &mr, &mrEmpty)
}
mr.Reset()
if !reflect.DeepEqual(&mr, &mrEmpty) {
t.Fatalf("mr=%+v must be equal to mrEmpty=%+v", &mr, &mrEmpty)
}
}
func TestMetaindexRowMarshalUnmarshal(t *testing.T) {
var mr metaindexRow
for i := 0; i < 1000; i++ {
initTestMetaindexRow(&mr)
testMetaindexRowMarshalUnmarshal(t, &mr)
}
}
func testMetaindexRowMarshalUnmarshal(t *testing.T, mr *metaindexRow) {
dst := mr.Marshal(nil)
var mr1 metaindexRow
tail, err := mr1.Unmarshal(dst)
if err != nil {
t.Fatalf("cannot unmarshal mr=%+v from dst=%x: %s", mr, dst, err)
}
if len(tail) > 0 {
t.Fatalf("unexpected non-zero tail got after unmarshaling mr=%+v from dst=%x: %x", mr, dst, tail)
}
if !reflect.DeepEqual(mr, &mr1) {
t.Fatalf("unexpected unmarshaled mr; got\n%+v; want\n%+v", &mr1, mr)
}
prefix := []byte("foo")
dstNew := mr.Marshal(prefix)
if string(dstNew[:len(prefix)]) != string(prefix) {
t.Fatalf("unexepcted prefix when marshaling mr=%+v; got\n%x; want\n%x", mr, dstNew[:len(prefix)], prefix)
}
if string(dstNew[len(prefix):]) != string(dst) {
t.Fatalf("unexpected prefixed dstNew for mr=%+v; got\n%x; want\n%x", mr, dstNew[len(prefix):], dst)
}
suffix := []byte("bar")
dst = append(dst, suffix...)
var mr2 metaindexRow
tail, err = mr2.Unmarshal(dst)
if err != nil {
t.Fatalf("cannot unmarshal mr=%+v from prefixed dst=%x: %s", mr, dst, err)
}
if string(tail) != string(suffix) {
t.Fatalf("invalid tail after unmarshaling mr=%+v from prefixed dst; got\n%x; want\n%x", mr, tail, suffix)
}
if !reflect.DeepEqual(mr, &mr2) {
t.Fatalf("unexpected unmarshaled mr from prefixed dst; got\n%+v; want\n%+v", &mr2, mr)
}
}
func initTestMetaindexRow(mr *metaindexRow) {
rndLock.Lock()
iv, ok := quick.Value(metaindexRowType, rnd)
rndLock.Unlock()
if !ok {
panic(fmt.Errorf("error in quick.Value when generating random metaindexRow"))
}
rndMR := iv.Interface().(*metaindexRow)
if rndMR == nil {
rndMR = &metaindexRow{}
}
*mr = *rndMR
if mr.BlockHeadersCount == 0 {
mr.BlockHeadersCount = 1
}
if mr.IndexBlockSize > 2*8*maxBlockSize {
mr.IndexBlockSize = 2 * 8 * maxBlockSize
}
}
var metaindexRowType = reflect.TypeOf(&metaindexRow{})