mirror of https://github.com/prometheus/prometheus
1085 lines
26 KiB
Go
1085 lines
26 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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"bytes"
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"context"
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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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"math"
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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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"strings"
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"testing"
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"time"
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"github.com/gogo/protobuf/proto"
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"github.com/golang/snappy"
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config_util "github.com/prometheus/common/config"
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"github.com/prometheus/common/model"
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"github.com/prometheus/common/promlog"
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"github.com/prometheus/common/route"
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"github.com/prometheus/prometheus/config"
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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/prompb"
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"github.com/prometheus/prometheus/promql"
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"github.com/prometheus/prometheus/scrape"
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"github.com/prometheus/prometheus/storage"
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"github.com/prometheus/prometheus/storage/remote"
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)
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type testTargetRetriever struct{}
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func (t testTargetRetriever) TargetsActive() []*scrape.Target {
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return []*scrape.Target{
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scrape.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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func (t testTargetRetriever) TargetsDropped() []*scrape.Target {
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return []*scrape.Target{
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scrape.NewTarget(
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nil,
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labels.FromMap(map[string]string{
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model.AddressLabel: "http://dropped.example.com:9115",
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model.MetricsPathLabel: "/probe",
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model.SchemeLabel: "http",
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model.JobLabel: "blackbox",
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}),
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url.Values{},
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),
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}
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}
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type testAlertmanagerRetriever struct{}
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func (t testAlertmanagerRetriever) Alertmanagers() []*url.URL {
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return []*url.URL{
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{
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Scheme: "http",
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Host: "alertmanager.example.com:8080",
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Path: "/api/v1/alerts",
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},
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}
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}
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func (t testAlertmanagerRetriever) DroppedAlertmanagers() []*url.URL {
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return []*url.URL{
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{
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Scheme: "http",
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Host: "dropped.alertmanager.example.com:8080",
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Path: "/api/v1/alerts",
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},
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}
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}
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var samplePrometheusCfg = config.Config{
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GlobalConfig: config.GlobalConfig{},
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AlertingConfig: config.AlertingConfig{},
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RuleFiles: []string{},
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ScrapeConfigs: []*config.ScrapeConfig{},
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RemoteWriteConfigs: []*config.RemoteWriteConfig{},
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RemoteReadConfigs: []*config.RemoteReadConfig{},
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}
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var sampleFlagMap = map[string]string{
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"flag1": "value1",
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"flag2": "value2",
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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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t.Run("local", func(t *testing.T) {
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api := &API{
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Queryable: suite.Storage(),
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QueryEngine: suite.QueryEngine(),
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targetRetriever: testTargetRetriever{},
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alertmanagerRetriever: testAlertmanagerRetriever{},
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now: func() time.Time { return now },
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config: func() config.Config { return samplePrometheusCfg },
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flagsMap: sampleFlagMap,
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ready: func(f http.HandlerFunc) http.HandlerFunc { return f },
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}
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testEndpoints(t, api, true)
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})
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// Run all the API tests against a API that is wired to forward queries via
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// the remote read client to a test server, which in turn sends them to the
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// data from the test suite.
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t.Run("remote", func(t *testing.T) {
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server := setupRemote(suite.Storage())
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defer server.Close()
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u, err := url.Parse(server.URL)
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if err != nil {
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t.Fatal(err)
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}
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al := promlog.AllowedLevel{}
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al.Set("debug")
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remote := remote.NewStorage(promlog.New(al), func() (int64, error) {
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return 0, nil
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}, 1*time.Second)
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err = remote.ApplyConfig(&config.Config{
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RemoteReadConfigs: []*config.RemoteReadConfig{
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{
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URL: &config_util.URL{URL: u},
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RemoteTimeout: model.Duration(1 * time.Second),
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ReadRecent: true,
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},
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},
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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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api := &API{
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Queryable: remote,
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QueryEngine: suite.QueryEngine(),
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targetRetriever: testTargetRetriever{},
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alertmanagerRetriever: testAlertmanagerRetriever{},
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now: func() time.Time { return now },
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config: func() config.Config { return samplePrometheusCfg },
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flagsMap: sampleFlagMap,
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ready: func(f http.HandlerFunc) http.HandlerFunc { return f },
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}
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testEndpoints(t, api, false)
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})
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}
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func setupRemote(s storage.Storage) *httptest.Server {
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handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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req, err := remote.DecodeReadRequest(r)
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if err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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resp := prompb.ReadResponse{
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Results: make([]*prompb.QueryResult, len(req.Queries)),
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}
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for i, query := range req.Queries {
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from, through, matchers, err := remote.FromQuery(query)
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if err != nil {
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http.Error(w, err.Error(), http.StatusBadRequest)
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return
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}
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querier, err := s.Querier(r.Context(), from, through)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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defer querier.Close()
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set, err := querier.Select(nil, matchers...)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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resp.Results[i], err = remote.ToQueryResult(set)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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}
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if err := remote.EncodeReadResponse(&resp, w); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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})
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return httptest.NewServer(handler)
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}
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func testEndpoints(t *testing.T, api *API, testLabelAPI bool) {
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start := time.Unix(0, 0)
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type test 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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var tests = []test{
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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(api.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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// Start overflows int64 internally.
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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{"148966367200.372"},
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"end": []string{"1489667272.372"},
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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.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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},
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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: errorInternal,
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},
|
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{
|
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endpoint: api.targets,
|
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response: &TargetDiscovery{
|
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ActiveTargets: []*Target{
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{
|
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DiscoveredLabels: map[string]string{},
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Labels: map[string]string{},
|
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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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DroppedTargets: []*DroppedTarget{
|
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{
|
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DiscoveredLabels: map[string]string{
|
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"__address__": "http://dropped.example.com:9115",
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"__metrics_path__": "/probe",
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"__scheme__": "http",
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"job": "blackbox",
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},
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},
|
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},
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},
|
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},
|
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{
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endpoint: api.alertmanagers,
|
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response: &AlertmanagerDiscovery{
|
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ActiveAlertmanagers: []*AlertmanagerTarget{
|
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{
|
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URL: "http://alertmanager.example.com:8080/api/v1/alerts",
|
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},
|
|
},
|
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DroppedAlertmanagers: []*AlertmanagerTarget{
|
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{
|
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URL: "http://dropped.alertmanager.example.com:8080/api/v1/alerts",
|
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},
|
|
},
|
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},
|
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},
|
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{
|
|
endpoint: api.serveConfig,
|
|
response: &prometheusConfig{
|
|
YAML: samplePrometheusCfg.String(),
|
|
},
|
|
},
|
|
{
|
|
endpoint: api.serveFlags,
|
|
response: sampleFlagMap,
|
|
},
|
|
}
|
|
|
|
if testLabelAPI {
|
|
tests = append(tests, []test{
|
|
{
|
|
endpoint: api.labelValues,
|
|
params: map[string]string{
|
|
"name": "__name__",
|
|
},
|
|
response: []string{
|
|
"test_metric1",
|
|
"test_metric2",
|
|
},
|
|
},
|
|
{
|
|
endpoint: api.labelValues,
|
|
params: map[string]string{
|
|
"name": "foo",
|
|
},
|
|
response: []string{
|
|
"bar",
|
|
"boo",
|
|
},
|
|
},
|
|
// Bad name parameter.
|
|
{
|
|
endpoint: api.labelValues,
|
|
params: map[string]string{
|
|
"name": "not!!!allowed",
|
|
},
|
|
errType: errorBadData,
|
|
},
|
|
}...)
|
|
}
|
|
|
|
methods := func(f apiFunc) []string {
|
|
fp := reflect.ValueOf(f).Pointer()
|
|
if fp == reflect.ValueOf(api.query).Pointer() || fp == reflect.ValueOf(api.queryRange).Pointer() {
|
|
return []string{http.MethodGet, http.MethodPost}
|
|
}
|
|
return []string{http.MethodGet}
|
|
}
|
|
|
|
request := func(m string, q url.Values) (*http.Request, error) {
|
|
if m == http.MethodPost {
|
|
r, err := http.NewRequest(m, "http://example.com", strings.NewReader(q.Encode()))
|
|
r.Header.Set("Content-Type", "application/x-www-form-urlencoded")
|
|
return r, err
|
|
}
|
|
return http.NewRequest(m, fmt.Sprintf("http://example.com?%s", q.Encode()), nil)
|
|
}
|
|
|
|
for i, test := range tests {
|
|
for _, method := range methods(test.endpoint) {
|
|
// Build a context with the correct request params.
|
|
ctx := context.Background()
|
|
for p, v := range test.params {
|
|
ctx = route.WithParam(ctx, p, v)
|
|
}
|
|
t.Logf("run %d\t%s\t%q", i, method, test.query.Encode())
|
|
|
|
req, err := request(method, test.query)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
resp, apiErr, _ := test.endpoint(req.WithContext(ctx))
|
|
if apiErr != nil {
|
|
if test.errType == errorNone {
|
|
t.Fatalf("Unexpected error: %s", apiErr)
|
|
}
|
|
if test.errType != apiErr.typ {
|
|
t.Fatalf("Expected error of type %q but got type %q", test.errType, apiErr.typ)
|
|
}
|
|
continue
|
|
}
|
|
if apiErr == nil && test.errType != errorNone {
|
|
t.Fatalf("Expected error of type %q but got none", test.errType)
|
|
}
|
|
if !reflect.DeepEqual(resp, test.response) {
|
|
t.Fatalf("Response does not match, expected:\n%+v\ngot:\n%+v", test.response, resp)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestReadEndpoint(t *testing.T) {
|
|
suite, err := promql.NewTest(t, `
|
|
load 1m
|
|
test_metric1{foo="bar",baz="qux"} 1
|
|
`)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer suite.Close()
|
|
|
|
if err := suite.Run(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
api := &API{
|
|
Queryable: suite.Storage(),
|
|
QueryEngine: suite.QueryEngine(),
|
|
config: func() config.Config {
|
|
return config.Config{
|
|
GlobalConfig: config.GlobalConfig{
|
|
ExternalLabels: model.LabelSet{
|
|
"baz": "a",
|
|
"b": "c",
|
|
"d": "e",
|
|
},
|
|
},
|
|
}
|
|
},
|
|
}
|
|
|
|
// Encode the request.
|
|
matcher1, err := labels.NewMatcher(labels.MatchEqual, "__name__", "test_metric1")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
matcher2, err := labels.NewMatcher(labels.MatchEqual, "d", "e")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
query, err := remote.ToQuery(0, 1, []*labels.Matcher{matcher1, matcher2}, &storage.SelectParams{Step: 0, Func: "avg"})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
req := &prompb.ReadRequest{Queries: []*prompb.Query{query}}
|
|
data, err := proto.Marshal(req)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
compressed := snappy.Encode(nil, data)
|
|
request, err := http.NewRequest("POST", "", bytes.NewBuffer(compressed))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
recorder := httptest.NewRecorder()
|
|
api.remoteRead(recorder, request)
|
|
|
|
// Decode the response.
|
|
compressed, err = ioutil.ReadAll(recorder.Result().Body)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
uncompressed, err := snappy.Decode(nil, compressed)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
var resp prompb.ReadResponse
|
|
err = proto.Unmarshal(uncompressed, &resp)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if len(resp.Results) != 1 {
|
|
t.Fatalf("Expected 1 result, got %d", len(resp.Results))
|
|
}
|
|
|
|
result := resp.Results[0]
|
|
expected := &prompb.QueryResult{
|
|
Timeseries: []*prompb.TimeSeries{
|
|
{
|
|
Labels: []*prompb.Label{
|
|
{Name: "__name__", Value: "test_metric1"},
|
|
{Name: "b", Value: "c"},
|
|
{Name: "baz", Value: "qux"},
|
|
{Name: "d", Value: "e"},
|
|
{Name: "foo", Value: "bar"},
|
|
},
|
|
Samples: []*prompb.Sample{{Value: 1, Timestamp: 0}},
|
|
},
|
|
},
|
|
}
|
|
if !reflect.DeepEqual(result, expected) {
|
|
t.Fatalf("Expected response \n%v\n but got \n%v\n", result, expected)
|
|
}
|
|
}
|
|
|
|
func TestRespondSuccess(t *testing.T) {
|
|
s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
respond(w, "test")
|
|
}))
|
|
defer s.Close()
|
|
|
|
resp, err := http.Get(s.URL)
|
|
if err != nil {
|
|
t.Fatalf("Error on test request: %s", err)
|
|
}
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
defer resp.Body.Close()
|
|
if err != nil {
|
|
t.Fatalf("Error reading response body: %s", err)
|
|
}
|
|
|
|
if resp.StatusCode != 200 {
|
|
t.Fatalf("Return code %d expected in success response but got %d", 200, resp.StatusCode)
|
|
}
|
|
if h := resp.Header.Get("Content-Type"); h != "application/json" {
|
|
t.Fatalf("Expected Content-Type %q but got %q", "application/json", h)
|
|
}
|
|
|
|
var res response
|
|
if err = json.Unmarshal([]byte(body), &res); err != nil {
|
|
t.Fatalf("Error unmarshaling JSON body: %s", err)
|
|
}
|
|
|
|
exp := &response{
|
|
Status: statusSuccess,
|
|
Data: "test",
|
|
}
|
|
if !reflect.DeepEqual(&res, exp) {
|
|
t.Fatalf("Expected response \n%v\n but got \n%v\n", res, exp)
|
|
}
|
|
}
|
|
|
|
func TestRespondError(t *testing.T) {
|
|
s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
respondError(w, &apiError{errorTimeout, errors.New("message")}, "test")
|
|
}))
|
|
defer s.Close()
|
|
|
|
resp, err := http.Get(s.URL)
|
|
if err != nil {
|
|
t.Fatalf("Error on test request: %s", err)
|
|
}
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
defer resp.Body.Close()
|
|
if err != nil {
|
|
t.Fatalf("Error reading response body: %s", err)
|
|
}
|
|
|
|
if want, have := http.StatusServiceUnavailable, resp.StatusCode; want != have {
|
|
t.Fatalf("Return code %d expected in error response but got %d", want, have)
|
|
}
|
|
if h := resp.Header.Get("Content-Type"); h != "application/json" {
|
|
t.Fatalf("Expected Content-Type %q but got %q", "application/json", h)
|
|
}
|
|
|
|
var res response
|
|
if err = json.Unmarshal([]byte(body), &res); err != nil {
|
|
t.Fatalf("Error unmarshaling JSON body: %s", err)
|
|
}
|
|
|
|
exp := &response{
|
|
Status: statusError,
|
|
Data: "test",
|
|
ErrorType: errorTimeout,
|
|
Error: "message",
|
|
}
|
|
if !reflect.DeepEqual(&res, exp) {
|
|
t.Fatalf("Expected response \n%v\n but got \n%v\n", res, exp)
|
|
}
|
|
}
|
|
|
|
func TestParseTime(t *testing.T) {
|
|
ts, err := time.Parse(time.RFC3339Nano, "2015-06-03T13:21:58.555Z")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
var tests = []struct {
|
|
input string
|
|
fail bool
|
|
result time.Time
|
|
}{
|
|
{
|
|
input: "",
|
|
fail: true,
|
|
}, {
|
|
input: "abc",
|
|
fail: true,
|
|
}, {
|
|
input: "30s",
|
|
fail: true,
|
|
}, {
|
|
input: "123",
|
|
result: time.Unix(123, 0),
|
|
}, {
|
|
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,
|
|
}, {
|
|
// Internal int64 overflow.
|
|
input: "-148966367200.372",
|
|
fail: true,
|
|
}, {
|
|
// Internal int64 overflow.
|
|
input: "148966367200.372",
|
|
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()
|
|
api := &API{ready: func(f http.HandlerFunc) http.HandlerFunc { return f }}
|
|
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))
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestRespond(t *testing.T) {
|
|
cases := []struct {
|
|
response interface{}
|
|
expected string
|
|
}{
|
|
{
|
|
response: &queryData{
|
|
ResultType: promql.ValueTypeMatrix,
|
|
Result: promql.Matrix{
|
|
promql.Series{
|
|
Points: []promql.Point{{V: 1, T: 1000}},
|
|
Metric: labels.FromStrings("__name__", "foo"),
|
|
},
|
|
},
|
|
},
|
|
expected: `{"status":"success","data":{"resultType":"matrix","result":[{"metric":{"__name__":"foo"},"values":[[1,"1"]]}]}}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 0, T: 0},
|
|
expected: `{"status":"success","data":[0,"0"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 20, T: 1},
|
|
expected: `{"status":"success","data":[0.001,"20"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 20, T: 10},
|
|
expected: `{"status":"success","data":[0.010,"20"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 20, T: 100},
|
|
expected: `{"status":"success","data":[0.100,"20"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 20, T: 1001},
|
|
expected: `{"status":"success","data":[1.001,"20"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 20, T: 1010},
|
|
expected: `{"status":"success","data":[1.010,"20"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 20, T: 1100},
|
|
expected: `{"status":"success","data":[1.100,"20"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 20, T: 12345678123456555},
|
|
expected: `{"status":"success","data":[12345678123456.555,"20"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 20, T: -1},
|
|
expected: `{"status":"success","data":[-0.001,"20"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: math.NaN(), T: 0},
|
|
expected: `{"status":"success","data":[0,"NaN"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: math.Inf(1), T: 0},
|
|
expected: `{"status":"success","data":[0,"+Inf"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: math.Inf(-1), T: 0},
|
|
expected: `{"status":"success","data":[0,"-Inf"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 1.2345678e6, T: 0},
|
|
expected: `{"status":"success","data":[0,"1234567.8"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 1.2345678e-6, T: 0},
|
|
expected: `{"status":"success","data":[0,"0.0000012345678"]}`,
|
|
},
|
|
{
|
|
response: promql.Point{V: 1.2345678e-67, T: 0},
|
|
expected: `{"status":"success","data":[0,"1.2345678e-67"]}`,
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
respond(w, c.response)
|
|
}))
|
|
defer s.Close()
|
|
|
|
resp, err := http.Get(s.URL)
|
|
if err != nil {
|
|
t.Fatalf("Error on test request: %s", err)
|
|
}
|
|
body, err := ioutil.ReadAll(resp.Body)
|
|
defer resp.Body.Close()
|
|
if err != nil {
|
|
t.Fatalf("Error reading response body: %s", err)
|
|
}
|
|
|
|
if string(body) != c.expected {
|
|
t.Fatalf("Expected response \n%v\n but got \n%v\n", c.expected, string(body))
|
|
}
|
|
}
|
|
}
|
|
|
|
// This is a global to avoid the benchmark being optimized away.
|
|
var testResponseWriter = httptest.ResponseRecorder{}
|
|
|
|
func BenchmarkRespond(b *testing.B) {
|
|
b.ReportAllocs()
|
|
points := []promql.Point{}
|
|
for i := 0; i < 10000; i++ {
|
|
points = append(points, promql.Point{V: float64(i * 1000000), T: int64(i)})
|
|
}
|
|
response := &queryData{
|
|
ResultType: promql.ValueTypeMatrix,
|
|
Result: promql.Matrix{
|
|
promql.Series{
|
|
Points: points,
|
|
Metric: nil,
|
|
},
|
|
},
|
|
}
|
|
b.ResetTimer()
|
|
for n := 0; n < b.N; n++ {
|
|
respond(&testResponseWriter, response)
|
|
}
|
|
}
|