influxdb/tsdb/series_file_test.go

83 lines
2.1 KiB
Go

package tsdb_test
import (
"io/ioutil"
"os"
"testing"
"github.com/influxdata/influxdb/models"
"github.com/influxdata/influxdb/tsdb"
)
// Ensure series file contains the correct set of series.
func TestSeriesFile_Series(t *testing.T) {
sfile := MustOpenSeriesFile()
defer sfile.Close()
series := []Series{
{Name: []byte("cpu"), Tags: models.NewTags(map[string]string{"region": "east"})},
{Name: []byte("cpu"), Tags: models.NewTags(map[string]string{"region": "west"})},
{Name: []byte("mem"), Tags: models.NewTags(map[string]string{"region": "east"})},
}
for _, s := range series {
if _, err := sfile.CreateSeriesListIfNotExists([][]byte{[]byte(s.Name)}, []models.Tags{s.Tags}, nil); err != nil {
t.Fatal(err)
}
}
// Verify total number of series is correct.
if n := sfile.SeriesCount(); n != 3 {
t.Fatalf("unexpected series count: %d", n)
}
// Verify all series exist.
for i, s := range series {
if offset := sfile.Offset(s.Name, s.Tags, nil); offset == 0 {
t.Fatalf("series does not exist: i=%d", i)
}
}
// Verify non-existent series doesn't exist.
if sfile.HasSeries([]byte("foo"), models.NewTags(map[string]string{"region": "north"}), nil) {
t.Fatal("series should not exist")
}
}
// Series represents name/tagset pairs that are used in testing.
type Series struct {
Name []byte
Tags models.Tags
Deleted bool
}
// SeriesFile is a test wrapper for tsdb.SeriesFile.
type SeriesFile struct {
*tsdb.SeriesFile
}
// NewSeriesFile returns a new instance of SeriesFile with a temporary file path.
func NewSeriesFile() *SeriesFile {
file, err := ioutil.TempFile("", "tsdb-series-file-")
if err != nil {
panic(err)
}
file.Close()
return &SeriesFile{SeriesFile: tsdb.NewSeriesFile(file.Name())}
}
// MustOpenSeriesFile returns a new, open instance of SeriesFile. Panic on error.
func MustOpenSeriesFile() *SeriesFile {
f := NewSeriesFile()
if err := f.Open(); err != nil {
panic(err)
}
return f
}
// Close closes the log file and removes it from disk.
func (f *SeriesFile) Close() error {
defer os.Remove(f.Path())
return f.SeriesFile.Close()
}