prometheus/storage/metric/view_test.go

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// Copyright 2013 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package metric
import (
"github.com/prometheus/prometheus/model"
"github.com/prometheus/prometheus/utility/test"
"testing"
"time"
)
func testBuilder(t test.Tester) {
type atTime struct {
fingerprint string
time time.Time
}
type atInterval struct {
fingerprint string
from time.Time
through time.Time
interval time.Duration
}
type atRange struct {
fingerprint string
from time.Time
through time.Time
}
type in struct {
atTimes []atTime
atIntervals []atInterval
atRanges []atRange
}
type out []struct {
fingerprint string
operations ops
}
var scenarios = []struct {
in in
out out
}{
// Ensure that the fingerprint is sorted in proper order.
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{
in: in{
atTimes: []atTime{
{
fingerprint: "0000000000000001111-a-4-a",
time: time.Unix(100, 0),
},
{
fingerprint: "0000000000000000000-a-4-a",
time: time.Unix(100, 0),
},
},
},
out: out{
{
fingerprint: "00000000000000000000-a-4-a",
},
{
fingerprint: "00000000000000001111-a-4-a",
},
},
},
// // Ensure that the fingerprint-timestamp pairs are sorted in proper order.
{
in: in{
atTimes: []atTime{
{
fingerprint: "1111-a-4-a",
time: time.Unix(100, 0),
},
{
fingerprint: "1111-a-4-a",
time: time.Unix(200, 0),
},
{
fingerprint: "0-a-4-a",
time: time.Unix(100, 0),
},
{
fingerprint: "0-a-4-a",
time: time.Unix(0, 0),
},
},
},
out: out{
{
fingerprint: "00000000000000000000-a-4-a",
},
{
fingerprint: "00000000000000001111-a-4-a",
},
},
},
// Ensure grouping of operations
{
in: in{
atTimes: []atTime{
{
fingerprint: "1111-a-4-a",
time: time.Unix(100, 0),
},
},
atRanges: []atRange{
{
fingerprint: "1111-a-4-a",
from: time.Unix(100, 0),
through: time.Unix(1000, 0),
},
{
fingerprint: "1111-a-4-a",
from: time.Unix(100, 0),
through: time.Unix(9000, 0),
},
},
},
out: out{
{
fingerprint: "00000000000000001111-a-4-a",
},
},
},
}
for i, scenario := range scenarios {
builder := viewRequestBuilder{
operations: map[model.Fingerprint]ops{},
}
for _, atTime := range scenario.in.atTimes {
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fingerprint := *model.NewFingerprintFromRowKey(atTime.fingerprint)
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builder.GetMetricAtTime(fingerprint, atTime.time)
}
for _, atInterval := range scenario.in.atIntervals {
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fingerprint := *model.NewFingerprintFromRowKey(atInterval.fingerprint)
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builder.GetMetricAtInterval(fingerprint, atInterval.from, atInterval.through, atInterval.interval)
}
for _, atRange := range scenario.in.atRanges {
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fingerprint := *model.NewFingerprintFromRowKey(atRange.fingerprint)
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builder.GetMetricRange(fingerprint, atRange.from, atRange.through)
}
jobs := builder.ScanJobs()
if len(scenario.out) != len(jobs) {
t.Fatalf("%d. expected job length of %d, got %d\n", i, len(scenario.out), len(jobs))
}
for j, job := range scenario.out {
if jobs[j].fingerprint.ToRowKey() != job.fingerprint {
t.Fatalf("%d.%d. expected fingerprint %s, got %s\n", i, j, job.fingerprint, jobs[j].fingerprint.ToRowKey())
}
}
}
}
func TestBuilder(t *testing.T) {
testBuilder(t)
}
func BenchmarkBuilder(b *testing.B) {
for i := 0; i < b.N; i++ {
testBuilder(b)
}
}