prometheus/storage/local/persistence_test.go
Julius Volz e7ed39c9a6 Initial experimental snapshot of next-gen storage.
Change-Id: Ifb8709960dbedd1d9f5efd88cdd359ee9fa9d26d
2014-11-25 17:02:00 +01:00

108 lines
2.9 KiB
Go

package storage_ng
import (
"io/ioutil"
"testing"
clientmodel "github.com/prometheus/client_golang/model"
"github.com/prometheus/prometheus/storage/metric"
"github.com/prometheus/prometheus/utility"
)
func TestIndexPersistence(t *testing.T) {
expected := Indexes{
FingerprintToSeries: map[clientmodel.Fingerprint]*memorySeries{
0: {
metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "metric_0",
"label_1": "value_1",
},
},
1: {
metric: clientmodel.Metric{
clientmodel.MetricNameLabel: "metric_0",
"label_2": "value_2",
},
},
},
LabelPairToFingerprints: map[metric.LabelPair]utility.Set{
metric.LabelPair{
Name: clientmodel.MetricNameLabel,
Value: "metric_0",
}: {
0: struct{}{},
1: struct{}{},
},
metric.LabelPair{
Name: "label_1",
Value: "value_1",
}: {
0: struct{}{},
},
metric.LabelPair{
Name: "label_2",
Value: "value_2",
}: {
1: struct{}{},
},
},
LabelNameToLabelValues: map[clientmodel.LabelName]utility.Set{
clientmodel.MetricNameLabel: {
clientmodel.LabelValue("metric_0"): struct{}{},
},
"label_1": {
clientmodel.LabelValue("value_1"): struct{}{},
},
"label_2": {
clientmodel.LabelValue("value_2"): struct{}{},
},
},
}
basePath, err := ioutil.TempDir("", "test_index_persistence")
if err != nil {
t.Fatal(err)
}
p, err := NewDiskPersistence(basePath, 1024)
if err != nil {
t.Fatal(err)
}
p.PersistIndexes(&expected)
actual, err := p.LoadIndexes()
if err != nil {
t.Fatal(err)
}
if len(actual.FingerprintToSeries) != len(expected.FingerprintToSeries) {
t.Fatalf("Count mismatch: Got %d; want %d", len(actual.FingerprintToSeries), len(expected.FingerprintToSeries))
}
for fp, actualSeries := range actual.FingerprintToSeries {
expectedSeries := expected.FingerprintToSeries[fp]
if !expectedSeries.metric.Equal(actualSeries.metric) {
t.Fatalf("%s: Got %s; want %s", fp, actualSeries.metric, expectedSeries.metric)
}
}
if len(actual.LabelPairToFingerprints) != len(expected.LabelPairToFingerprints) {
t.Fatalf("Count mismatch: Got %d; want %d", len(actual.LabelPairToFingerprints), len(expected.LabelPairToFingerprints))
}
for lp, actualFps := range actual.LabelPairToFingerprints {
expectedFps := expected.LabelPairToFingerprints[lp]
if len(actualFps) != len(actualFps.Intersection(expectedFps)) {
t.Fatalf("%s: Got %s; want %s", lp, actualFps, expectedFps)
}
}
if len(actual.LabelNameToLabelValues) != len(expected.LabelNameToLabelValues) {
t.Fatalf("Count mismatch: Got %d; want %d", len(actual.LabelNameToLabelValues), len(expected.LabelNameToLabelValues))
}
for name, actualVals := range actual.LabelNameToLabelValues {
expectedVals := expected.LabelNameToLabelValues[name]
if len(actualVals) != len(actualVals.Intersection(expectedVals)) {
t.Fatalf("%s: Got %s; want %s", name, actualVals, expectedVals)
}
}
}