667 lines
18 KiB
Go
667 lines
18 KiB
Go
// Copyright 2018 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 main
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"net/http"
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"net/http/httptest"
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"net/url"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"syscall"
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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/stretchr/testify/require"
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"github.com/prometheus/prometheus/model/labels"
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"github.com/prometheus/prometheus/model/rulefmt"
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"github.com/prometheus/prometheus/promql/promqltest"
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)
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func init() {
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// This can be removed when the default validation scheme in common is updated.
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model.NameValidationScheme = model.UTF8Validation
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}
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var promtoolPath = os.Args[0]
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func TestMain(m *testing.M) {
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for i, arg := range os.Args {
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if arg == "-test.main" {
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os.Args = append(os.Args[:i], os.Args[i+1:]...)
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main()
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return
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}
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}
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exitCode := m.Run()
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os.Exit(exitCode)
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}
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func TestQueryRange(t *testing.T) {
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t.Parallel()
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s, getRequest := mockServer(200, `{"status": "success", "data": {"resultType": "matrix", "result": []}}`)
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defer s.Close()
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urlObject, err := url.Parse(s.URL)
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require.NoError(t, err)
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p := &promqlPrinter{}
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exitCode := QueryRange(urlObject, http.DefaultTransport, map[string]string{}, "up", "0", "300", 0, p)
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require.Equal(t, "/api/v1/query_range", getRequest().URL.Path)
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form := getRequest().Form
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require.Equal(t, "up", form.Get("query"))
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require.Equal(t, "1", form.Get("step"))
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require.Equal(t, 0, exitCode)
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exitCode = QueryRange(urlObject, http.DefaultTransport, map[string]string{}, "up", "0", "300", 10*time.Millisecond, p)
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require.Equal(t, "/api/v1/query_range", getRequest().URL.Path)
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form = getRequest().Form
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require.Equal(t, "up", form.Get("query"))
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require.Equal(t, "0.01", form.Get("step"))
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require.Equal(t, 0, exitCode)
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}
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func TestQueryInstant(t *testing.T) {
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t.Parallel()
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s, getRequest := mockServer(200, `{"status": "success", "data": {"resultType": "vector", "result": []}}`)
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defer s.Close()
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urlObject, err := url.Parse(s.URL)
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require.NoError(t, err)
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p := &promqlPrinter{}
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exitCode := QueryInstant(urlObject, http.DefaultTransport, "up", "300", p)
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require.Equal(t, "/api/v1/query", getRequest().URL.Path)
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form := getRequest().Form
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require.Equal(t, "up", form.Get("query"))
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require.Equal(t, "300", form.Get("time"))
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require.Equal(t, 0, exitCode)
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}
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func mockServer(code int, body string) (*httptest.Server, func() *http.Request) {
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var req *http.Request
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server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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r.ParseForm()
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req = r
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w.WriteHeader(code)
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fmt.Fprintln(w, body)
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}))
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f := func() *http.Request {
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return req
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}
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return server, f
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}
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func TestCheckSDFile(t *testing.T) {
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t.Parallel()
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cases := []struct {
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name string
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file string
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err string
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}{
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{
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name: "good .yml",
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file: "./testdata/good-sd-file.yml",
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},
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{
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name: "good .yaml",
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file: "./testdata/good-sd-file.yaml",
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},
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{
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name: "good .json",
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file: "./testdata/good-sd-file.json",
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},
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{
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name: "bad file extension",
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file: "./testdata/bad-sd-file-extension.nonexistant",
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err: "invalid file extension: \".nonexistant\"",
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},
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{
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name: "bad format",
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file: "./testdata/bad-sd-file-format.yml",
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err: "yaml: unmarshal errors:\n line 1: field targats not found in type struct { Targets []string \"yaml:\\\"targets\\\"\"; Labels model.LabelSet \"yaml:\\\"labels\\\"\" }",
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},
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}
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for _, test := range cases {
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t.Run(test.name, func(t *testing.T) {
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t.Parallel()
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_, err := checkSDFile(test.file)
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if test.err != "" {
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require.EqualErrorf(t, err, test.err, "Expected error %q, got %q", test.err, err.Error())
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return
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}
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require.NoError(t, err)
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})
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}
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}
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func TestCheckDuplicates(t *testing.T) {
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t.Parallel()
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cases := []struct {
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name string
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ruleFile string
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expectedDups []compareRuleType
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}{
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{
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name: "no duplicates",
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ruleFile: "./testdata/rules.yml",
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},
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{
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name: "duplicate in other group",
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ruleFile: "./testdata/rules_duplicates.yml",
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expectedDups: []compareRuleType{
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{
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metric: "job:test:count_over_time1m",
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label: labels.New(),
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},
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},
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},
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}
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for _, test := range cases {
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c := test
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t.Run(c.name, func(t *testing.T) {
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t.Parallel()
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rgs, err := rulefmt.ParseFile(c.ruleFile)
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require.Empty(t, err)
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dups := checkDuplicates(rgs.Groups)
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require.Equal(t, c.expectedDups, dups)
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})
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}
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}
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func BenchmarkCheckDuplicates(b *testing.B) {
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rgs, err := rulefmt.ParseFile("./testdata/rules_large.yml")
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require.Empty(b, err)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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checkDuplicates(rgs.Groups)
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}
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}
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func TestCheckTargetConfig(t *testing.T) {
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t.Parallel()
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cases := []struct {
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name string
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file string
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err string
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}{
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{
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name: "url_in_scrape_targetgroup_with_relabel_config.good",
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file: "url_in_scrape_targetgroup_with_relabel_config.good.yml",
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err: "",
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},
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{
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name: "url_in_alert_targetgroup_with_relabel_config.good",
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file: "url_in_alert_targetgroup_with_relabel_config.good.yml",
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err: "",
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},
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{
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name: "url_in_scrape_targetgroup_with_relabel_config.bad",
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file: "url_in_scrape_targetgroup_with_relabel_config.bad.yml",
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err: "instance 0 in group 0: \"http://bad\" is not a valid hostname",
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},
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{
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name: "url_in_alert_targetgroup_with_relabel_config.bad",
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file: "url_in_alert_targetgroup_with_relabel_config.bad.yml",
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err: "\"http://bad\" is not a valid hostname",
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},
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}
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for _, test := range cases {
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t.Run(test.name, func(t *testing.T) {
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t.Parallel()
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_, _, err := checkConfig(false, "testdata/"+test.file, false)
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if test.err != "" {
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require.EqualErrorf(t, err, test.err, "Expected error %q, got %q", test.err, err.Error())
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return
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}
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require.NoError(t, err)
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})
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}
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}
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func TestCheckConfigSyntax(t *testing.T) {
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t.Parallel()
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cases := []struct {
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name string
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file string
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syntaxOnly bool
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err string
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errWindows string
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}{
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{
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name: "check with syntax only succeeds with nonexistent rule files",
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file: "config_with_rule_files.yml",
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syntaxOnly: true,
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err: "",
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errWindows: "",
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},
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{
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name: "check without syntax only fails with nonexistent rule files",
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file: "config_with_rule_files.yml",
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syntaxOnly: false,
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err: "\"testdata/non-existent-file.yml\" does not point to an existing file",
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errWindows: "\"testdata\\\\non-existent-file.yml\" does not point to an existing file",
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},
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{
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name: "check with syntax only succeeds with nonexistent service discovery files",
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file: "config_with_service_discovery_files.yml",
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syntaxOnly: true,
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err: "",
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errWindows: "",
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},
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// The test below doesn't fail because the file verification for ServiceDiscoveryConfigs doesn't fail the check if
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// file isn't found; it only outputs a warning message.
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{
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name: "check without syntax only succeeds with nonexistent service discovery files",
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file: "config_with_service_discovery_files.yml",
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syntaxOnly: false,
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err: "",
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errWindows: "",
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},
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{
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name: "check with syntax only succeeds with nonexistent TLS files",
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file: "config_with_tls_files.yml",
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syntaxOnly: true,
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err: "",
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errWindows: "",
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},
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{
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name: "check without syntax only fails with nonexistent TLS files",
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file: "config_with_tls_files.yml",
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syntaxOnly: false,
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err: "error checking client cert file \"testdata/nonexistent_cert_file.yml\": " +
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"stat testdata/nonexistent_cert_file.yml: no such file or directory",
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errWindows: "error checking client cert file \"testdata\\\\nonexistent_cert_file.yml\": " +
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"CreateFile testdata\\nonexistent_cert_file.yml: The system cannot find the file specified.",
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},
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{
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name: "check with syntax only succeeds with nonexistent credentials file",
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file: "authorization_credentials_file.bad.yml",
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syntaxOnly: true,
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err: "",
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errWindows: "",
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},
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{
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name: "check without syntax only fails with nonexistent credentials file",
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file: "authorization_credentials_file.bad.yml",
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syntaxOnly: false,
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err: "error checking authorization credentials or bearer token file \"/random/file/which/does/not/exist.yml\": " +
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"stat /random/file/which/does/not/exist.yml: no such file or directory",
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errWindows: "error checking authorization credentials or bearer token file \"testdata\\\\random\\\\file\\\\which\\\\does\\\\not\\\\exist.yml\": " +
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"CreateFile testdata\\random\\file\\which\\does\\not\\exist.yml: The system cannot find the path specified.",
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},
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}
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for _, test := range cases {
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t.Run(test.name, func(t *testing.T) {
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t.Parallel()
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_, _, err := checkConfig(false, "testdata/"+test.file, test.syntaxOnly)
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expectedErrMsg := test.err
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if strings.Contains(runtime.GOOS, "windows") {
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expectedErrMsg = test.errWindows
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}
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if expectedErrMsg != "" {
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require.EqualErrorf(t, err, expectedErrMsg, "Expected error %q, got %q", test.err, err.Error())
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return
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}
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require.NoError(t, err)
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})
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}
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}
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func TestAuthorizationConfig(t *testing.T) {
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t.Parallel()
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cases := []struct {
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name string
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file string
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err string
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}{
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{
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name: "authorization_credentials_file.bad",
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file: "authorization_credentials_file.bad.yml",
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err: "error checking authorization credentials or bearer token file",
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},
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{
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name: "authorization_credentials_file.good",
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file: "authorization_credentials_file.good.yml",
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err: "",
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},
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}
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for _, test := range cases {
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t.Run(test.name, func(t *testing.T) {
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t.Parallel()
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_, _, err := checkConfig(false, "testdata/"+test.file, false)
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if test.err != "" {
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require.ErrorContains(t, err, test.err, "Expected error to contain %q, got %q", test.err, err.Error())
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return
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}
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require.NoError(t, err)
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})
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}
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}
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func TestCheckMetricsExtended(t *testing.T) {
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if runtime.GOOS == "windows" {
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t.Skip("Skipping on windows")
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}
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t.Parallel()
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f, err := os.Open("testdata/metrics-test.prom")
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require.NoError(t, err)
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defer f.Close()
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stats, total, err := checkMetricsExtended(f)
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require.NoError(t, err)
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require.Equal(t, 27, total)
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require.Equal(t, []metricStat{
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{
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name: "prometheus_tsdb_compaction_chunk_size_bytes",
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cardinality: 15,
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percentage: float64(15) / float64(27),
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},
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{
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name: "go_gc_duration_seconds",
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cardinality: 7,
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percentage: float64(7) / float64(27),
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},
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{
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name: "net_conntrack_dialer_conn_attempted_total",
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cardinality: 4,
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percentage: float64(4) / float64(27),
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},
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{
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name: "go_info",
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cardinality: 1,
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percentage: float64(1) / float64(27),
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},
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}, stats)
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}
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func TestExitCodes(t *testing.T) {
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if testing.Short() {
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t.Skip("skipping test in short mode.")
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}
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t.Parallel()
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for _, c := range []struct {
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file string
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exitCode int
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lintIssue bool
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}{
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{
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file: "prometheus-config.good.yml",
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},
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{
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file: "prometheus-config.bad.yml",
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exitCode: 1,
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},
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{
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file: "prometheus-config.nonexistent.yml",
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exitCode: 1,
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},
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{
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file: "prometheus-config.lint.yml",
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lintIssue: true,
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exitCode: 3,
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},
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} {
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t.Run(c.file, func(t *testing.T) {
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t.Parallel()
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for _, lintFatal := range []bool{true, false} {
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t.Run(strconv.FormatBool(lintFatal), func(t *testing.T) {
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t.Parallel()
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args := []string{"-test.main", "check", "config", "testdata/" + c.file}
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if lintFatal {
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args = append(args, "--lint-fatal")
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}
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tool := exec.Command(promtoolPath, args...)
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err := tool.Run()
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if c.exitCode == 0 || (c.lintIssue && !lintFatal) {
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require.NoError(t, err)
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return
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}
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require.Error(t, err)
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var exitError *exec.ExitError
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if errors.As(err, &exitError) {
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status := exitError.Sys().(syscall.WaitStatus)
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require.Equal(t, c.exitCode, status.ExitStatus())
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} else {
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t.Errorf("unable to retrieve the exit status for promtool: %v", err)
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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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func TestDocumentation(t *testing.T) {
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if runtime.GOOS == "windows" {
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t.SkipNow()
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}
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t.Parallel()
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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cmd := exec.CommandContext(ctx, promtoolPath, "-test.main", "write-documentation")
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var stdout bytes.Buffer
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cmd.Stdout = &stdout
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if err := cmd.Run(); err != nil {
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var exitError *exec.ExitError
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if errors.As(err, &exitError) && exitError.ExitCode() != 0 {
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fmt.Println("Command failed with non-zero exit code")
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}
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}
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generatedContent := strings.ReplaceAll(stdout.String(), filepath.Base(promtoolPath), strings.TrimSuffix(filepath.Base(promtoolPath), ".test"))
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expectedContent, err := os.ReadFile(filepath.Join("..", "..", "docs", "command-line", "promtool.md"))
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require.NoError(t, err)
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require.Equal(t, string(expectedContent), generatedContent, "Generated content does not match documentation. Hint: run `make cli-documentation`.")
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}
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func TestCheckRules(t *testing.T) {
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t.Run("rules-good", func(t *testing.T) {
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data, err := os.ReadFile("./testdata/rules.yml")
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require.NoError(t, err)
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r, w, err := os.Pipe()
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if err != nil {
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t.Fatal(err)
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}
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_, err = w.Write(data)
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if err != nil {
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t.Error(err)
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}
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w.Close()
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// Restore stdin right after the test.
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defer func(v *os.File) { os.Stdin = v }(os.Stdin)
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os.Stdin = r
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exitCode := CheckRules(newRulesLintConfig(lintOptionDuplicateRules, false))
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require.Equal(t, successExitCode, exitCode, "")
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})
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t.Run("rules-bad", func(t *testing.T) {
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data, err := os.ReadFile("./testdata/rules-bad.yml")
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require.NoError(t, err)
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r, w, err := os.Pipe()
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if err != nil {
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t.Fatal(err)
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}
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_, err = w.Write(data)
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if err != nil {
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t.Error(err)
|
|
}
|
|
w.Close()
|
|
|
|
// Restore stdin right after the test.
|
|
defer func(v *os.File) { os.Stdin = v }(os.Stdin)
|
|
os.Stdin = r
|
|
|
|
exitCode := CheckRules(newRulesLintConfig(lintOptionDuplicateRules, false))
|
|
require.Equal(t, failureExitCode, exitCode, "")
|
|
})
|
|
|
|
t.Run("rules-lint-fatal", func(t *testing.T) {
|
|
data, err := os.ReadFile("./testdata/prometheus-rules.lint.yml")
|
|
require.NoError(t, err)
|
|
r, w, err := os.Pipe()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
_, err = w.Write(data)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
w.Close()
|
|
|
|
// Restore stdin right after the test.
|
|
defer func(v *os.File) { os.Stdin = v }(os.Stdin)
|
|
os.Stdin = r
|
|
|
|
exitCode := CheckRules(newRulesLintConfig(lintOptionDuplicateRules, true))
|
|
require.Equal(t, lintErrExitCode, exitCode, "")
|
|
})
|
|
}
|
|
|
|
func TestCheckRulesWithRuleFiles(t *testing.T) {
|
|
t.Run("rules-good", func(t *testing.T) {
|
|
t.Parallel()
|
|
exitCode := CheckRules(newRulesLintConfig(lintOptionDuplicateRules, false), "./testdata/rules.yml")
|
|
require.Equal(t, successExitCode, exitCode, "")
|
|
})
|
|
|
|
t.Run("rules-bad", func(t *testing.T) {
|
|
t.Parallel()
|
|
exitCode := CheckRules(newRulesLintConfig(lintOptionDuplicateRules, false), "./testdata/rules-bad.yml")
|
|
require.Equal(t, failureExitCode, exitCode, "")
|
|
})
|
|
|
|
t.Run("rules-lint-fatal", func(t *testing.T) {
|
|
t.Parallel()
|
|
exitCode := CheckRules(newRulesLintConfig(lintOptionDuplicateRules, true), "./testdata/prometheus-rules.lint.yml")
|
|
require.Equal(t, lintErrExitCode, exitCode, "")
|
|
})
|
|
}
|
|
|
|
func TestCheckScrapeConfigs(t *testing.T) {
|
|
for _, tc := range []struct {
|
|
name string
|
|
lookbackDelta model.Duration
|
|
expectError bool
|
|
}{
|
|
{
|
|
name: "scrape interval less than lookback delta",
|
|
lookbackDelta: model.Duration(11 * time.Minute),
|
|
expectError: false,
|
|
},
|
|
{
|
|
name: "scrape interval greater than lookback delta",
|
|
lookbackDelta: model.Duration(5 * time.Minute),
|
|
expectError: true,
|
|
},
|
|
{
|
|
name: "scrape interval same as lookback delta",
|
|
lookbackDelta: model.Duration(10 * time.Minute),
|
|
expectError: true,
|
|
},
|
|
} {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
// Non-fatal linting.
|
|
code := CheckConfig(false, false, newConfigLintConfig(lintOptionTooLongScrapeInterval, false, tc.lookbackDelta), "./testdata/prometheus-config.lint.too_long_scrape_interval.yml")
|
|
require.Equal(t, successExitCode, code, "Non-fatal linting should return success")
|
|
// Fatal linting.
|
|
code = CheckConfig(false, false, newConfigLintConfig(lintOptionTooLongScrapeInterval, true, tc.lookbackDelta), "./testdata/prometheus-config.lint.too_long_scrape_interval.yml")
|
|
if tc.expectError {
|
|
require.Equal(t, lintErrExitCode, code, "Fatal linting should return error")
|
|
} else {
|
|
require.Equal(t, successExitCode, code, "Fatal linting should return success when there are no problems")
|
|
}
|
|
// Check syntax only, no linting.
|
|
code = CheckConfig(false, true, newConfigLintConfig(lintOptionTooLongScrapeInterval, true, tc.lookbackDelta), "./testdata/prometheus-config.lint.too_long_scrape_interval.yml")
|
|
require.Equal(t, successExitCode, code, "Fatal linting should return success when checking syntax only")
|
|
// Lint option "none" should disable linting.
|
|
code = CheckConfig(false, false, newConfigLintConfig(lintOptionNone+","+lintOptionTooLongScrapeInterval, true, tc.lookbackDelta), "./testdata/prometheus-config.lint.too_long_scrape_interval.yml")
|
|
require.Equal(t, successExitCode, code, `Fatal linting should return success when lint option "none" is specified`)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestTSDBDumpCommand(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip("skipping test in short mode.")
|
|
}
|
|
t.Parallel()
|
|
|
|
storage := promqltest.LoadedStorage(t, `
|
|
load 1m
|
|
metric{foo="bar"} 1 2 3
|
|
`)
|
|
t.Cleanup(func() { storage.Close() })
|
|
|
|
for _, c := range []struct {
|
|
name string
|
|
subCmd string
|
|
sandboxDirRoot string
|
|
}{
|
|
{
|
|
name: "dump",
|
|
subCmd: "dump",
|
|
},
|
|
{
|
|
name: "dump with sandbox dir root",
|
|
subCmd: "dump",
|
|
sandboxDirRoot: t.TempDir(),
|
|
},
|
|
{
|
|
name: "dump-openmetrics",
|
|
subCmd: "dump-openmetrics",
|
|
},
|
|
{
|
|
name: "dump-openmetrics with sandbox dir root",
|
|
subCmd: "dump-openmetrics",
|
|
sandboxDirRoot: t.TempDir(),
|
|
},
|
|
} {
|
|
t.Run(c.name, func(t *testing.T) {
|
|
t.Parallel()
|
|
args := []string{"-test.main", "tsdb", c.subCmd, storage.Dir()}
|
|
cmd := exec.Command(promtoolPath, args...)
|
|
require.NoError(t, cmd.Run())
|
|
})
|
|
}
|
|
}
|