514 lines
13 KiB
Go
514 lines
13 KiB
Go
package tsm1_test
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import (
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"bytes"
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"encoding/binary"
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"testing"
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"time"
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"github.com/influxdata/influxdb/tsdb/engine/tsm1"
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)
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func TestTSMWriter_Write_Empty(t *testing.T) {
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error created writer: %v", err)
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}
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if err := w.WriteIndex(); err != tsm1.ErrNoValues {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if got, exp := len(b.Bytes()), 0; got < exp {
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t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
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}
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}
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func TestTSMWriter_Write_NoValues(t *testing.T) {
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error created writer: %v", err)
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}
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if err := w.Write("foo", []tsm1.Value{}); err != nil {
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t.Fatalf("unexpected error writing: %v", err)
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}
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if err := w.WriteIndex(); err != tsm1.ErrNoValues {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if got, exp := len(b.Bytes()), 0; got < exp {
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t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
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}
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}
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func TestTSMWriter_Write_Single(t *testing.T) {
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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values := []tsm1.Value{tsm1.NewValue(time.Unix(0, 0), 1.0)}
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if err := w.Write("cpu", values); err != nil {
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t.Fatalf("unexpected error writing: %v", err)
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}
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if err := w.WriteIndex(); err != nil {
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t.Fatalf("unexpected error writing index: %v", err)
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}
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if err := w.Close(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if got, exp := len(b.Bytes()), 5; got < exp {
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t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
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}
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if got := binary.BigEndian.Uint32(b.Bytes()[0:4]); got != tsm1.MagicNumber {
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t.Fatalf("magic number mismatch: got %v, exp %v", got, tsm1.MagicNumber)
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}
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r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
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if err != nil {
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t.Fatalf("unexpected error created reader: %v", err)
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}
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readValues, err := r.ReadAll("cpu")
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if err != nil {
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t.Fatalf("unexpected error readin: %v", err)
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}
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if len(readValues) != len(values) {
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t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), len(values))
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}
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for i, v := range values {
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if v.Value() != readValues[i].Value() {
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t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
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}
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}
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}
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func TestTSMWriter_Write_Multiple(t *testing.T) {
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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var data = []struct {
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key string
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values []tsm1.Value
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}{
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{"cpu", []tsm1.Value{tsm1.NewValue(time.Unix(0, 0), 1.0)}},
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{"mem", []tsm1.Value{tsm1.NewValue(time.Unix(1, 0), 2.0)}},
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}
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for _, d := range data {
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if err := w.Write(d.key, d.values); err != nil {
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t.Fatalf("unexpected error writing: %v", err)
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}
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}
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if err := w.WriteIndex(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if err := w.Close(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
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if err != nil {
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t.Fatalf("unexpected error created reader: %v", err)
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}
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for _, d := range data {
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readValues, err := r.ReadAll(d.key)
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if err != nil {
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t.Fatalf("unexpected error readin: %v", err)
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}
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if exp := len(d.values); exp != len(readValues) {
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t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
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}
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for i, v := range d.values {
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if v.Value() != readValues[i].Value() {
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t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
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}
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}
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}
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}
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func TestTSMWriter_Write_MultipleKeyValues(t *testing.T) {
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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var data = []struct {
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key string
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values []tsm1.Value
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}{
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{"cpu", []tsm1.Value{
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tsm1.NewValue(time.Unix(0, 0), 1.0),
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tsm1.NewValue(time.Unix(1, 0), 2.0)},
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},
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{"mem", []tsm1.Value{
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tsm1.NewValue(time.Unix(0, 0), 1.5),
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tsm1.NewValue(time.Unix(1, 0), 2.5)},
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},
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}
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for _, d := range data {
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if err := w.Write(d.key, d.values); err != nil {
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t.Fatalf("unexpected error writing: %v", err)
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}
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}
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if err := w.WriteIndex(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if err := w.Close(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
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if err != nil {
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t.Fatalf("unexpected error created reader: %v", err)
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}
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for _, d := range data {
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readValues, err := r.ReadAll(d.key)
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if err != nil {
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t.Fatalf("unexpected error readin: %v", err)
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}
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if exp := len(d.values); exp != len(readValues) {
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t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
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}
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for i, v := range d.values {
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if v.Value() != readValues[i].Value() {
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t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
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}
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}
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}
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}
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// Tests that writing keys in reverse is able to read them back.
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func TestTSMWriter_Write_ReverseKeys(t *testing.T) {
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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var data = []struct {
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key string
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values []tsm1.Value
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}{
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{"mem", []tsm1.Value{
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tsm1.NewValue(time.Unix(0, 0), 1.5),
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tsm1.NewValue(time.Unix(1, 0), 2.5)},
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},
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{"cpu", []tsm1.Value{
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tsm1.NewValue(time.Unix(0, 0), 1.0),
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tsm1.NewValue(time.Unix(1, 0), 2.0)},
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},
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}
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for _, d := range data {
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if err := w.Write(d.key, d.values); err != nil {
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t.Fatalf("unexpected error writing: %v", err)
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}
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}
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if err := w.WriteIndex(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if err := w.Close(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
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if err != nil {
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t.Fatalf("unexpected error created reader: %v", err)
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}
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for _, d := range data {
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readValues, err := r.ReadAll(d.key)
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if err != nil {
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t.Fatalf("unexpected error readin: %v", err)
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}
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if exp := len(d.values); exp != len(readValues) {
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t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
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}
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for i, v := range d.values {
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if v.Value() != readValues[i].Value() {
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t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
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}
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}
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}
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}
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// Tests that writing keys in reverse is able to read them back.
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func TestTSMWriter_Write_SameKey(t *testing.T) {
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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var data = []struct {
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key string
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values []tsm1.Value
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}{
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{"cpu", []tsm1.Value{
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tsm1.NewValue(time.Unix(0, 0), 1.0),
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tsm1.NewValue(time.Unix(1, 0), 2.0)},
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},
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{"cpu", []tsm1.Value{
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tsm1.NewValue(time.Unix(2, 0), 3.0),
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tsm1.NewValue(time.Unix(3, 0), 4.0)},
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},
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}
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for _, d := range data {
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if err := w.Write(d.key, d.values); err != nil {
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t.Fatalf("unexpected error writing: %v", err)
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}
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}
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if err := w.WriteIndex(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if err := w.Close(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
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if err != nil {
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t.Fatalf("unexpected error created reader: %v", err)
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}
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values := append(data[0].values, data[1].values...)
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readValues, err := r.ReadAll("cpu")
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if err != nil {
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t.Fatalf("unexpected error readin: %v", err)
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}
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if exp := len(values); exp != len(readValues) {
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t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
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}
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for i, v := range values {
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if v.Value() != readValues[i].Value() {
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t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
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}
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}
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}
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// Tests that calling Read returns all the values for block matching the key
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// and timestamp
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func TestTSMWriter_Read_Multiple(t *testing.T) {
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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var data = []struct {
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key string
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values []tsm1.Value
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}{
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{"cpu", []tsm1.Value{
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tsm1.NewValue(time.Unix(0, 0), 1.0),
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tsm1.NewValue(time.Unix(1, 0), 2.0)},
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},
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{"cpu", []tsm1.Value{
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tsm1.NewValue(time.Unix(2, 0), 3.0),
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tsm1.NewValue(time.Unix(3, 0), 4.0)},
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},
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}
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for _, d := range data {
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if err := w.Write(d.key, d.values); err != nil {
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t.Fatalf("unexpected error writing: %v", err)
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}
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}
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if err := w.WriteIndex(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if err := w.Close(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
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if err != nil {
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t.Fatalf("unexpected error created reader: %v", err)
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}
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for _, values := range data {
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// Try the first timestamp
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readValues, err := r.Read("cpu", values.values[0].Time())
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if err != nil {
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t.Fatalf("unexpected error readin: %v", err)
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}
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if exp := len(values.values); exp != len(readValues) {
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t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
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}
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for i, v := range values.values {
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if v.Value() != readValues[i].Value() {
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t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
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}
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}
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// Try the last timestamp too
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readValues, err = r.Read("cpu", values.values[1].Time())
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if err != nil {
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t.Fatalf("unexpected error readin: %v", err)
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}
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if exp := len(values.values); exp != len(readValues) {
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t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
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}
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for i, v := range values.values {
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if v.Value() != readValues[i].Value() {
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t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
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}
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}
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}
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}
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func TestTSMWriter_WriteBlock_Empty(t *testing.T) {
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// Write a new TSM file
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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if err := w.WriteBlock("cpu", time.Unix(0, 0), time.Unix(0, 0), nil); err != nil {
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t.Fatalf("unexpected error writing block: %v", err)
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}
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if err := w.WriteIndex(); err != tsm1.ErrNoValues {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if got, exp := len(b.Bytes()), 0; got < exp {
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t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
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}
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}
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func TestTSMWriter_WriteBlock_Multiple(t *testing.T) {
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// Write a new TSM file
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var b bytes.Buffer
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w, err := tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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var data = []struct {
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key string
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values []tsm1.Value
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}{
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{"cpu", []tsm1.Value{tsm1.NewValue(time.Unix(0, 0), 1.0)}},
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{"mem", []tsm1.Value{tsm1.NewValue(time.Unix(1, 0), 2.0)}},
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}
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for _, d := range data {
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if err := w.Write(d.key, d.values); err != nil {
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t.Fatalf("unexpected error writing: %v", err)
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}
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}
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if err := w.WriteIndex(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if err := w.Close(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if got, exp := len(b.Bytes()), 5; got < exp {
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t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
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}
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if got := binary.BigEndian.Uint32(b.Bytes()[0:4]); got != tsm1.MagicNumber {
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t.Fatalf("magic number mismatch: got %v, exp %v", got, tsm1.MagicNumber)
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}
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// Create reader for that file
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r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
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if err != nil {
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t.Fatalf("unexpected error created reader: %v", err)
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}
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// Using the reader, write a new file using WriteBlocks
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b.Reset()
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w, err = tsm1.NewTSMWriter(&b)
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if err != nil {
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t.Fatalf("unexpected error creating writer: %v", err)
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}
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iter := r.BlockIterator()
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for iter.Next() {
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key, minTime, maxTime, b, err := iter.Read()
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if err != nil {
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t.Fatalf("unexpected error reading block: %v", err)
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}
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if err := w.WriteBlock(key, minTime, maxTime, b); err != nil {
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t.Fatalf("unexpected error writing block: %v", err)
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}
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}
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if err := w.WriteIndex(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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if err := w.Close(); err != nil {
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t.Fatalf("unexpected error closing: %v", err)
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}
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// Now create a reader to verify the written blocks matches the originally
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// written file using Write
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r, err = tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
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if err != nil {
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t.Fatalf("unexpected error created reader: %v", err)
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}
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for _, d := range data {
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readValues, err := r.ReadAll(d.key)
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if err != nil {
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t.Fatalf("unexpected error readin: %v", err)
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}
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if exp := len(d.values); exp != len(readValues) {
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t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
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}
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for i, v := range d.values {
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if v.Value() != readValues[i].Value() {
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t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
|
|
}
|
|
}
|
|
}
|
|
}
|