mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-10 07:34:04 -08:00
660 lines
15 KiB
Go
660 lines
15 KiB
Go
// Copyright 2016 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 v1
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import (
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"encoding/json"
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"errors"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"net/url"
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"reflect"
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"testing"
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"time"
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"github.com/prometheus/common/model"
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"github.com/prometheus/common/route"
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"golang.org/x/net/context"
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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/promql"
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"github.com/prometheus/prometheus/retrieval"
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)
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type targetRetrieverFunc func() []retrieval.Target
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func (f targetRetrieverFunc) Targets() []retrieval.Target {
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return f()
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}
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func TestEndpoints(t *testing.T) {
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suite, err := promql.NewTest(t, `
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load 1m
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test_metric1{foo="bar"} 0+100x100
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test_metric1{foo="boo"} 1+0x100
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test_metric2{foo="boo"} 1+0x100
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`)
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if err != nil {
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t.Fatal(err)
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}
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defer suite.Close()
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if err := suite.Run(); err != nil {
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t.Fatal(err)
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}
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now := time.Now()
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tr := targetRetrieverFunc(func() []retrieval.Target {
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return []retrieval.Target{
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*retrieval.NewTarget(
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labels.FromMap(map[string]string{
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model.SchemeLabel: "http",
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model.AddressLabel: "example.com:8080",
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model.MetricsPathLabel: "/metrics",
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}),
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nil,
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url.Values{},
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),
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}
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})
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api := &API{
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Storage: suite.Storage(),
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QueryEngine: suite.QueryEngine(),
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targetRetriever: tr,
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now: func() time.Time { return now },
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}
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start := time.Unix(0, 0)
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var tests = []struct {
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endpoint apiFunc
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params map[string]string
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query url.Values
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response interface{}
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errType errorType
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}{
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"2"},
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"time": []string{"123.4"},
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},
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response: &queryData{
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ResultType: promql.ValueTypeScalar,
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Result: promql.Scalar{
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V: 2,
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T: timestamp.FromTime(start.Add(123*time.Second + 400*time.Millisecond)),
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},
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},
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},
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"0.333"},
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"time": []string{"1970-01-01T00:02:03Z"},
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},
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response: &queryData{
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ResultType: promql.ValueTypeScalar,
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Result: promql.Scalar{
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V: 0.333,
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T: timestamp.FromTime(start.Add(123 * time.Second)),
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},
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},
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},
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"0.333"},
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"time": []string{"1970-01-01T01:02:03+01:00"},
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},
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response: &queryData{
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ResultType: promql.ValueTypeScalar,
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Result: promql.Scalar{
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V: 0.333,
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T: timestamp.FromTime(start.Add(123 * time.Second)),
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},
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},
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},
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"0.333"},
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},
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response: &queryData{
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ResultType: promql.ValueTypeScalar,
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Result: promql.Scalar{
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V: 0.333,
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T: timestamp.FromTime(now),
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},
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},
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},
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"start": []string{"0"},
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"end": []string{"2"},
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"step": []string{"1"},
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},
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response: &queryData{
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ResultType: promql.ValueTypeMatrix,
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Result: promql.Matrix{
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promql.Series{
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Points: []promql.Point{
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{V: 0, T: timestamp.FromTime(start)},
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{V: 1, T: timestamp.FromTime(start.Add(1 * time.Second))},
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{V: 2, T: timestamp.FromTime(start.Add(2 * time.Second))},
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},
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Metric: nil,
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},
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},
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},
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},
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// Missing query params in range queries.
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"end": []string{"2"},
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"step": []string{"1"},
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},
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errType: errorBadData,
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},
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"start": []string{"0"},
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"step": []string{"1"},
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},
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errType: errorBadData,
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},
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"start": []string{"0"},
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"end": []string{"2"},
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},
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errType: errorBadData,
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},
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// Bad query expression.
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{
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endpoint: api.query,
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query: url.Values{
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"query": []string{"invalid][query"},
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"time": []string{"1970-01-01T01:02:03+01:00"},
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},
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errType: errorBadData,
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},
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"invalid][query"},
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"start": []string{"0"},
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"end": []string{"100"},
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"step": []string{"1"},
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},
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errType: errorBadData,
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},
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// Invalid step
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"start": []string{"1"},
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"end": []string{"2"},
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"step": []string{"0"},
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},
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errType: errorBadData,
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},
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// Start after end
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{
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endpoint: api.queryRange,
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query: url.Values{
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"query": []string{"time()"},
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"start": []string{"2"},
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"end": []string{"1"},
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"step": []string{"1"},
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},
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errType: errorBadData,
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},
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{
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endpoint: api.labelValues,
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params: map[string]string{
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"name": "__name__",
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},
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response: []string{
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"test_metric1",
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"test_metric2",
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},
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},
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{
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endpoint: api.labelValues,
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params: map[string]string{
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"name": "foo",
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},
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response: []string{
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"bar",
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"boo",
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},
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},
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// Bad name parameter.
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{
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endpoint: api.labelValues,
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params: map[string]string{
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"name": "not!!!allowed",
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},
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errType: errorBadData,
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric2`},
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},
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response: []labels.Labels{
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labels.FromStrings("__name__", "test_metric2", "foo", "boo"),
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},
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric1{foo=~".+o"}`},
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},
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response: []labels.Labels{
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labels.FromStrings("__name__", "test_metric1", "foo", "boo"),
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},
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric1{foo=~".+o$"}`, `test_metric1{foo=~".+o"}`},
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},
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response: []labels.Labels{
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labels.FromStrings("__name__", "test_metric1", "foo", "boo"),
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labels.FromStrings("__name__", "test_metric1", "foo", "boo"), // TODO(fabxc): see comment in implementation.
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},
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},
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric1{foo=~".+o"}`, `none`},
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},
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response: []labels.Labels{
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labels.FromStrings("__name__", "test_metric1", "foo", "boo"),
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},
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},
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// Start and end before series starts.
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric2`},
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"start": []string{"-2"},
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"end": []string{"-1"},
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},
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response: []labels.Labels{},
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},
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// Start and end after series ends.
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric2`},
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"start": []string{"100000"},
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"end": []string{"100001"},
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},
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response: []labels.Labels{},
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},
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// Start before series starts, end after series ends.
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric2`},
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"start": []string{"-1"},
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"end": []string{"100000"},
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},
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response: []labels.Labels{
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labels.FromStrings("__name__", "test_metric2", "foo", "boo"),
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},
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},
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// Start and end within series.
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric2`},
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"start": []string{"1"},
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"end": []string{"100"},
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},
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response: []labels.Labels{
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labels.FromStrings("__name__", "test_metric2", "foo", "boo"),
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},
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},
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// Start within series, end after.
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric2`},
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"start": []string{"1"},
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"end": []string{"100000"},
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},
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response: []labels.Labels{
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labels.FromStrings("__name__", "test_metric2", "foo", "boo"),
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},
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},
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// Start before series, end within series.
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{
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endpoint: api.series,
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query: url.Values{
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"match[]": []string{`test_metric2`},
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"start": []string{"-1"},
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"end": []string{"1"},
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},
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response: []labels.Labels{
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labels.FromStrings("__name__", "test_metric2", "foo", "boo"),
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},
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},
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// Missing match[] query params in series requests.
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{
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endpoint: api.series,
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errType: errorBadData,
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},
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{
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endpoint: api.dropSeries,
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errType: errorBadData,
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},
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// The following tests delete time series from the test storage. They
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// must remain at the end and are fixed in their order.
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// {
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// endpoint: api.dropSeries,
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// query: url.Values{
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// "match[]": []string{`test_metric1{foo=~".+o"}`},
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// },
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// response: struct {
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// NumDeleted int `json:"numDeleted"`
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// }{1},
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// },
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// {
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// endpoint: api.series,
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// query: url.Values{
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// "match[]": []string{`test_metric1`},
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// },
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// response: []model.Metric{
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// {
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// "__name__": "test_metric1",
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// "foo": "bar",
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// },
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// },
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// }, {
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// endpoint: api.dropSeries,
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// query: url.Values{
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// "match[]": []string{`{__name__=~".+"}`},
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// },
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// response: struct {
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// NumDeleted int `json:"numDeleted"`
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// }{2},
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// }, {
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// endpoint: api.targets,
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// response: []*Target{
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// &Target{
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// DiscoveredLabels: nil,
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// Labels: nil,
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// ScrapeUrl: "http://example.com:8080/metrics",
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// Health: "unknown",
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// },
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// },
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// },
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}
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for _, test := range tests {
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// Build a context with the correct request params.
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ctx := context.Background()
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for p, v := range test.params {
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ctx = route.WithParam(ctx, p, v)
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}
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api.context = func(r *http.Request) context.Context {
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return ctx
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}
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req, err := http.NewRequest("ANY", fmt.Sprintf("http://example.com?%s", test.query.Encode()), nil)
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if err != nil {
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t.Fatal(err)
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}
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resp, apiErr := test.endpoint(req)
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if apiErr != nil {
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if test.errType == errorNone {
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t.Fatalf("Unexpected error: %s", apiErr)
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}
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if test.errType != apiErr.typ {
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t.Fatalf("Expected error of type %q but got type %q", test.errType, apiErr.typ)
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}
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continue
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}
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if apiErr == nil && test.errType != errorNone {
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t.Fatalf("Expected error of type %q but got none", test.errType)
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}
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if !reflect.DeepEqual(resp, test.response) {
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t.Fatalf("Response does not match, expected:\n%+v\ngot:\n%+v", test.response, resp)
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}
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}
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}
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func TestRespondSuccess(t *testing.T) {
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s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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respond(w, "test")
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}))
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defer s.Close()
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resp, err := http.Get(s.URL)
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if err != nil {
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t.Fatalf("Error on test request: %s", err)
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}
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body, err := ioutil.ReadAll(resp.Body)
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defer resp.Body.Close()
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if err != nil {
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t.Fatalf("Error reading response body: %s", err)
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}
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if resp.StatusCode != 200 {
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t.Fatalf("Return code %d expected in success response but got %d", 200, resp.StatusCode)
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}
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if h := resp.Header.Get("Content-Type"); h != "application/json" {
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t.Fatalf("Expected Content-Type %q but got %q", "application/json", h)
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}
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var res response
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if err = json.Unmarshal([]byte(body), &res); err != nil {
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t.Fatalf("Error unmarshaling JSON body: %s", err)
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}
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exp := &response{
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Status: statusSuccess,
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Data: "test",
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}
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if !reflect.DeepEqual(&res, exp) {
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t.Fatalf("Expected response \n%v\n but got \n%v\n", res, exp)
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}
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}
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func TestRespondError(t *testing.T) {
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s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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respondError(w, &apiError{errorTimeout, errors.New("message")}, "test")
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}))
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defer s.Close()
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resp, err := http.Get(s.URL)
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if err != nil {
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t.Fatalf("Error on test request: %s", err)
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}
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body, err := ioutil.ReadAll(resp.Body)
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defer resp.Body.Close()
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if err != nil {
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t.Fatalf("Error reading response body: %s", err)
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}
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if want, have := http.StatusServiceUnavailable, resp.StatusCode; want != have {
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t.Fatalf("Return code %d expected in error response but got %d", want, have)
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}
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if h := resp.Header.Get("Content-Type"); h != "application/json" {
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t.Fatalf("Expected Content-Type %q but got %q", "application/json", h)
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}
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var res response
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if err = json.Unmarshal([]byte(body), &res); err != nil {
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t.Fatalf("Error unmarshaling JSON body: %s", err)
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}
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exp := &response{
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Status: statusError,
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Data: "test",
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ErrorType: errorTimeout,
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Error: "message",
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}
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if !reflect.DeepEqual(&res, exp) {
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t.Fatalf("Expected response \n%v\n but got \n%v\n", res, exp)
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}
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}
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func TestParseTime(t *testing.T) {
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ts, err := time.Parse(time.RFC3339Nano, "2015-06-03T13:21:58.555Z")
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if err != nil {
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panic(err)
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}
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|
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var tests = []struct {
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input string
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fail bool
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result time.Time
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}{
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{
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input: "",
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fail: true,
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}, {
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input: "abc",
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fail: true,
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}, {
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input: "30s",
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fail: true,
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}, {
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input: "123",
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result: time.Unix(123, 0),
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}, {
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input: "123.123",
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|
result: time.Unix(123, 123000000),
|
|
}, {
|
|
input: "123.123",
|
|
result: time.Unix(123, 123000000),
|
|
}, {
|
|
input: "2015-06-03T13:21:58.555Z",
|
|
result: ts,
|
|
}, {
|
|
input: "2015-06-03T14:21:58.555+01:00",
|
|
result: ts,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
ts, err := parseTime(test.input)
|
|
if err != nil && !test.fail {
|
|
t.Errorf("Unexpected error for %q: %s", test.input, err)
|
|
continue
|
|
}
|
|
if err == nil && test.fail {
|
|
t.Errorf("Expected error for %q but got none", test.input)
|
|
continue
|
|
}
|
|
if !test.fail && !ts.Equal(test.result) {
|
|
t.Errorf("Expected time %v for input %q but got %v", test.result, test.input, ts)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestParseDuration(t *testing.T) {
|
|
var tests = []struct {
|
|
input string
|
|
fail bool
|
|
result time.Duration
|
|
}{
|
|
{
|
|
input: "",
|
|
fail: true,
|
|
}, {
|
|
input: "abc",
|
|
fail: true,
|
|
}, {
|
|
input: "2015-06-03T13:21:58.555Z",
|
|
fail: true,
|
|
}, {
|
|
input: "123",
|
|
result: 123 * time.Second,
|
|
}, {
|
|
input: "123.333",
|
|
result: 123*time.Second + 333*time.Millisecond,
|
|
}, {
|
|
input: "15s",
|
|
result: 15 * time.Second,
|
|
}, {
|
|
input: "5m",
|
|
result: 5 * time.Minute,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
d, err := parseDuration(test.input)
|
|
if err != nil && !test.fail {
|
|
t.Errorf("Unexpected error for %q: %s", test.input, err)
|
|
continue
|
|
}
|
|
if err == nil && test.fail {
|
|
t.Errorf("Expected error for %q but got none", test.input)
|
|
continue
|
|
}
|
|
if !test.fail && d != test.result {
|
|
t.Errorf("Expected duration %v for input %q but got %v", test.result, test.input, d)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestOptionsMethod(t *testing.T) {
|
|
r := route.New(nil)
|
|
api := &API{}
|
|
api.Register(r)
|
|
|
|
s := httptest.NewServer(r)
|
|
defer s.Close()
|
|
|
|
req, err := http.NewRequest("OPTIONS", s.URL+"/any_path", nil)
|
|
if err != nil {
|
|
t.Fatalf("Error creating OPTIONS request: %s", err)
|
|
}
|
|
client := &http.Client{}
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
t.Fatalf("Error executing OPTIONS request: %s", err)
|
|
}
|
|
|
|
if resp.StatusCode != http.StatusNoContent {
|
|
t.Fatalf("Expected status %d, got %d", http.StatusNoContent, resp.StatusCode)
|
|
}
|
|
|
|
for h, v := range corsHeaders {
|
|
if resp.Header.Get(h) != v {
|
|
t.Fatalf("Expected %q for header %q, got %q", v, h, resp.Header.Get(h))
|
|
}
|
|
}
|
|
}
|