119 lines
2.7 KiB
Go
119 lines
2.7 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package promql
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import (
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"context"
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"testing"
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"github.com/prometheus/prometheus/pkg/labels"
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"github.com/prometheus/prometheus/pkg/timestamp"
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"github.com/prometheus/prometheus/util/testutil"
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)
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func BenchmarkHoltWinters4Week5Min(b *testing.B) {
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input := `
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clear
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load 5m
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http_requests{path="/foo"} 0+10x8064
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eval instant at 4w holt_winters(http_requests[4w], 0.3, 0.3)
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{path="/foo"} 80640
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`
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bench := NewBenchmark(b, input)
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bench.Run()
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}
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func BenchmarkHoltWinters1Week5Min(b *testing.B) {
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input := `
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clear
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load 5m
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http_requests{path="/foo"} 0+10x2016
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eval instant at 1w holt_winters(http_requests[1w], 0.3, 0.3)
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{path="/foo"} 20160
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`
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bench := NewBenchmark(b, input)
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bench.Run()
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}
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func BenchmarkHoltWinters1Day1Min(b *testing.B) {
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input := `
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clear
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load 1m
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http_requests{path="/foo"} 0+10x1440
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eval instant at 1d holt_winters(http_requests[1d], 0.3, 0.3)
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{path="/foo"} 14400
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`
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bench := NewBenchmark(b, input)
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bench.Run()
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}
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func BenchmarkChanges1Day1Min(b *testing.B) {
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input := `
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clear
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load 1m
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http_requests{path="/foo"} 0+10x1440
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eval instant at 1d changes(http_requests[1d])
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{path="/foo"} 1440
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`
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bench := NewBenchmark(b, input)
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bench.Run()
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}
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func TestDeriv(t *testing.T) {
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// https://github.com/prometheus/prometheus/issues/2674#issuecomment-315439393
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// This requires more precision than the usual test system offers,
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// so we test it by hand.
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storage := testutil.NewStorage(t)
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defer storage.Close()
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engine := NewEngine(storage, nil)
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a, err := storage.Appender()
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if err != nil {
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t.Fatal(err)
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}
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metric := labels.FromStrings("__name__", "foo")
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a.Add(metric, 1493712816939, 1.0)
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a.Add(metric, 1493712846939, 1.0)
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if err := a.Commit(); err != nil {
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t.Fatal(err)
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}
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query, err := engine.NewInstantQuery("deriv(foo[30m])", timestamp.Time(1493712846939))
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if err != nil {
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t.Fatalf("Error parsing query: %s", err)
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}
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result := query.Exec(context.Background())
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if result.Err != nil {
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t.Fatalf("Error running query: %s", result.Err)
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}
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vec, _ := result.Vector()
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if len(vec) != 1 {
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t.Fatalf("Expected 1 result, got %d", len(vec))
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}
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if vec[0].V != 0.0 {
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t.Fatalf("Expected 0.0 as value, got %f", vec[0].V)
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}
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}
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