mirror of https://github.com/knative/pkg.git
78 lines
2.0 KiB
Go
78 lines
2.0 KiB
Go
/*
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Copyright 2018 The Knative 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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https://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package prometheus_test
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import (
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"context"
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"testing"
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"time"
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v1 "github.com/prometheus/client_golang/api/prometheus/v1"
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"github.com/prometheus/common/model"
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"knative.dev/pkg/test/prometheus"
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)
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const (
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expected = 1.0
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query = "test"
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duration = 10 * time.Second
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)
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type testPromAPI struct {
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v1.API
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}
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// Query performs a query on the prom api
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func (*testPromAPI) Query(c context.Context, query string, ts time.Time, opts ...v1.Option) (model.Value, v1.Warnings, error) {
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s := model.Sample{Value: expected}
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var v []*model.Sample
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v = append(v, &s)
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return model.Vector(v), nil, nil
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}
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// QueryRange performs a query for the given range.
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func (*testPromAPI) QueryRange(ctx context.Context, query string, r v1.Range, opts ...v1.Option) (model.Value, v1.Warnings, error) {
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s := model.Sample{Value: expected}
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var v []*model.Sample
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v = append(v, &s)
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return model.Vector(v), nil, nil
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}
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func TestRunQuery(t *testing.T) {
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r, err := prometheus.RunQuery(context.Background(), t.Logf, &testPromAPI{}, query)
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if err != nil {
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t.Fatal("Error running query:", err)
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}
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if r != expected {
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t.Fatalf("Want: %f Got: %f", expected, r)
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}
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}
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func TestRunQueryRange(t *testing.T) {
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r := v1.Range{Start: time.Now(), End: time.Now().Add(duration)}
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val, err := prometheus.RunQueryRange(context.Background(), t.Logf, &testPromAPI{}, query, r)
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if err != nil {
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t.Fatal("Error running query:", err)
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}
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if val != expected {
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t.Fatalf("Want: %f Got: %f", expected, val)
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}
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}
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