mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-16 02:24:06 -08:00
552 lines
15 KiB
Go
552 lines
15 KiB
Go
// Copyright 2018 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"net/http"
|
|
"net/http/httptest"
|
|
"net/url"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"runtime"
|
|
"strconv"
|
|
"strings"
|
|
"syscall"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
|
|
"github.com/prometheus/prometheus/model/labels"
|
|
"github.com/prometheus/prometheus/model/rulefmt"
|
|
)
|
|
|
|
var promtoolPath = os.Args[0]
|
|
|
|
func TestMain(m *testing.M) {
|
|
for i, arg := range os.Args {
|
|
if arg == "-test.main" {
|
|
os.Args = append(os.Args[:i], os.Args[i+1:]...)
|
|
main()
|
|
return
|
|
}
|
|
}
|
|
|
|
exitCode := m.Run()
|
|
os.Exit(exitCode)
|
|
}
|
|
|
|
func TestQueryRange(t *testing.T) {
|
|
s, getRequest := mockServer(200, `{"status": "success", "data": {"resultType": "matrix", "result": []}}`)
|
|
defer s.Close()
|
|
|
|
urlObject, err := url.Parse(s.URL)
|
|
require.NoError(t, err)
|
|
|
|
p := &promqlPrinter{}
|
|
exitCode := QueryRange(urlObject, http.DefaultTransport, map[string]string{}, "up", "0", "300", 0, p)
|
|
require.Equal(t, "/api/v1/query_range", getRequest().URL.Path)
|
|
form := getRequest().Form
|
|
require.Equal(t, "up", form.Get("query"))
|
|
require.Equal(t, "1", form.Get("step"))
|
|
require.Equal(t, 0, exitCode)
|
|
|
|
exitCode = QueryRange(urlObject, http.DefaultTransport, map[string]string{}, "up", "0", "300", 10*time.Millisecond, p)
|
|
require.Equal(t, "/api/v1/query_range", getRequest().URL.Path)
|
|
form = getRequest().Form
|
|
require.Equal(t, "up", form.Get("query"))
|
|
require.Equal(t, "0.01", form.Get("step"))
|
|
require.Equal(t, 0, exitCode)
|
|
}
|
|
|
|
func TestQueryInstant(t *testing.T) {
|
|
s, getRequest := mockServer(200, `{"status": "success", "data": {"resultType": "vector", "result": []}}`)
|
|
defer s.Close()
|
|
|
|
urlObject, err := url.Parse(s.URL)
|
|
require.NoError(t, err)
|
|
|
|
p := &promqlPrinter{}
|
|
exitCode := QueryInstant(urlObject, http.DefaultTransport, "up", "300", p)
|
|
require.Equal(t, "/api/v1/query", getRequest().URL.Path)
|
|
form := getRequest().Form
|
|
require.Equal(t, "up", form.Get("query"))
|
|
require.Equal(t, "300", form.Get("time"))
|
|
require.Equal(t, 0, exitCode)
|
|
}
|
|
|
|
func mockServer(code int, body string) (*httptest.Server, func() *http.Request) {
|
|
var req *http.Request
|
|
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
r.ParseForm()
|
|
req = r
|
|
w.WriteHeader(code)
|
|
fmt.Fprintln(w, body)
|
|
}))
|
|
|
|
f := func() *http.Request {
|
|
return req
|
|
}
|
|
return server, f
|
|
}
|
|
|
|
func TestCheckSDFile(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
file string
|
|
err string
|
|
}{
|
|
{
|
|
name: "good .yml",
|
|
file: "./testdata/good-sd-file.yml",
|
|
},
|
|
{
|
|
name: "good .yaml",
|
|
file: "./testdata/good-sd-file.yaml",
|
|
},
|
|
{
|
|
name: "good .json",
|
|
file: "./testdata/good-sd-file.json",
|
|
},
|
|
{
|
|
name: "bad file extension",
|
|
file: "./testdata/bad-sd-file-extension.nonexistant",
|
|
err: "invalid file extension: \".nonexistant\"",
|
|
},
|
|
{
|
|
name: "bad format",
|
|
file: "./testdata/bad-sd-file-format.yml",
|
|
err: "yaml: unmarshal errors:\n line 1: field targats not found in type struct { Targets []string \"yaml:\\\"targets\\\"\"; Labels model.LabelSet \"yaml:\\\"labels\\\"\" }",
|
|
},
|
|
}
|
|
for _, test := range cases {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
_, err := checkSDFile(test.file)
|
|
if test.err != "" {
|
|
require.Equalf(t, test.err, err.Error(), "Expected error %q, got %q", test.err, err.Error())
|
|
return
|
|
}
|
|
require.NoError(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCheckDuplicates(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
ruleFile string
|
|
expectedDups []compareRuleType
|
|
}{
|
|
{
|
|
name: "no duplicates",
|
|
ruleFile: "./testdata/rules.yml",
|
|
},
|
|
{
|
|
name: "duplicate in other group",
|
|
ruleFile: "./testdata/rules_duplicates.yml",
|
|
expectedDups: []compareRuleType{
|
|
{
|
|
metric: "job:test:count_over_time1m",
|
|
label: labels.New(),
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range cases {
|
|
c := test
|
|
t.Run(c.name, func(t *testing.T) {
|
|
rgs, err := rulefmt.ParseFile(c.ruleFile)
|
|
require.Empty(t, err)
|
|
dups := checkDuplicates(rgs.Groups)
|
|
require.Equal(t, c.expectedDups, dups)
|
|
})
|
|
}
|
|
}
|
|
|
|
func BenchmarkCheckDuplicates(b *testing.B) {
|
|
rgs, err := rulefmt.ParseFile("./testdata/rules_large.yml")
|
|
require.Empty(b, err)
|
|
b.ResetTimer()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
checkDuplicates(rgs.Groups)
|
|
}
|
|
}
|
|
|
|
func TestCheckTargetConfig(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
file string
|
|
err string
|
|
}{
|
|
{
|
|
name: "url_in_scrape_targetgroup_with_relabel_config.good",
|
|
file: "url_in_scrape_targetgroup_with_relabel_config.good.yml",
|
|
err: "",
|
|
},
|
|
{
|
|
name: "url_in_alert_targetgroup_with_relabel_config.good",
|
|
file: "url_in_alert_targetgroup_with_relabel_config.good.yml",
|
|
err: "",
|
|
},
|
|
{
|
|
name: "url_in_scrape_targetgroup_with_relabel_config.bad",
|
|
file: "url_in_scrape_targetgroup_with_relabel_config.bad.yml",
|
|
err: "instance 0 in group 0: \"http://bad\" is not a valid hostname",
|
|
},
|
|
{
|
|
name: "url_in_alert_targetgroup_with_relabel_config.bad",
|
|
file: "url_in_alert_targetgroup_with_relabel_config.bad.yml",
|
|
err: "\"http://bad\" is not a valid hostname",
|
|
},
|
|
}
|
|
for _, test := range cases {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
_, err := checkConfig(false, "testdata/"+test.file, false)
|
|
if test.err != "" {
|
|
require.Equalf(t, test.err, err.Error(), "Expected error %q, got %q", test.err, err.Error())
|
|
return
|
|
}
|
|
require.NoError(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCheckConfigSyntax(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
file string
|
|
syntaxOnly bool
|
|
err string
|
|
errWindows string
|
|
}{
|
|
{
|
|
name: "check with syntax only succeeds with nonexistent rule files",
|
|
file: "config_with_rule_files.yml",
|
|
syntaxOnly: true,
|
|
err: "",
|
|
errWindows: "",
|
|
},
|
|
{
|
|
name: "check without syntax only fails with nonexistent rule files",
|
|
file: "config_with_rule_files.yml",
|
|
syntaxOnly: false,
|
|
err: "\"testdata/non-existent-file.yml\" does not point to an existing file",
|
|
errWindows: "\"testdata\\\\non-existent-file.yml\" does not point to an existing file",
|
|
},
|
|
{
|
|
name: "check with syntax only succeeds with nonexistent service discovery files",
|
|
file: "config_with_service_discovery_files.yml",
|
|
syntaxOnly: true,
|
|
err: "",
|
|
errWindows: "",
|
|
},
|
|
// The test below doesn't fail because the file verification for ServiceDiscoveryConfigs doesn't fail the check if
|
|
// file isn't found; it only outputs a warning message.
|
|
{
|
|
name: "check without syntax only succeeds with nonexistent service discovery files",
|
|
file: "config_with_service_discovery_files.yml",
|
|
syntaxOnly: false,
|
|
err: "",
|
|
errWindows: "",
|
|
},
|
|
{
|
|
name: "check with syntax only succeeds with nonexistent TLS files",
|
|
file: "config_with_tls_files.yml",
|
|
syntaxOnly: true,
|
|
err: "",
|
|
errWindows: "",
|
|
},
|
|
{
|
|
name: "check without syntax only fails with nonexistent TLS files",
|
|
file: "config_with_tls_files.yml",
|
|
syntaxOnly: false,
|
|
err: "error checking client cert file \"testdata/nonexistent_cert_file.yml\": " +
|
|
"stat testdata/nonexistent_cert_file.yml: no such file or directory",
|
|
errWindows: "error checking client cert file \"testdata\\\\nonexistent_cert_file.yml\": " +
|
|
"CreateFile testdata\\nonexistent_cert_file.yml: The system cannot find the file specified.",
|
|
},
|
|
{
|
|
name: "check with syntax only succeeds with nonexistent credentials file",
|
|
file: "authorization_credentials_file.bad.yml",
|
|
syntaxOnly: true,
|
|
err: "",
|
|
errWindows: "",
|
|
},
|
|
{
|
|
name: "check without syntax only fails with nonexistent credentials file",
|
|
file: "authorization_credentials_file.bad.yml",
|
|
syntaxOnly: false,
|
|
err: "error checking authorization credentials or bearer token file \"/random/file/which/does/not/exist.yml\": " +
|
|
"stat /random/file/which/does/not/exist.yml: no such file or directory",
|
|
errWindows: "error checking authorization credentials or bearer token file \"testdata\\\\random\\\\file\\\\which\\\\does\\\\not\\\\exist.yml\": " +
|
|
"CreateFile testdata\\random\\file\\which\\does\\not\\exist.yml: The system cannot find the path specified.",
|
|
},
|
|
}
|
|
for _, test := range cases {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
_, err := checkConfig(false, "testdata/"+test.file, test.syntaxOnly)
|
|
expectedErrMsg := test.err
|
|
if strings.Contains(runtime.GOOS, "windows") {
|
|
expectedErrMsg = test.errWindows
|
|
}
|
|
if expectedErrMsg != "" {
|
|
require.Equalf(t, expectedErrMsg, err.Error(), "Expected error %q, got %q", test.err, err.Error())
|
|
return
|
|
}
|
|
require.NoError(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestAuthorizationConfig(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
file string
|
|
err string
|
|
}{
|
|
{
|
|
name: "authorization_credentials_file.bad",
|
|
file: "authorization_credentials_file.bad.yml",
|
|
err: "error checking authorization credentials or bearer token file",
|
|
},
|
|
{
|
|
name: "authorization_credentials_file.good",
|
|
file: "authorization_credentials_file.good.yml",
|
|
err: "",
|
|
},
|
|
}
|
|
|
|
for _, test := range cases {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
_, err := checkConfig(false, "testdata/"+test.file, false)
|
|
if test.err != "" {
|
|
require.Contains(t, err.Error(), test.err, "Expected error to contain %q, got %q", test.err, err.Error())
|
|
return
|
|
}
|
|
require.NoError(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCheckMetricsExtended(t *testing.T) {
|
|
if runtime.GOOS == "windows" {
|
|
t.Skip("Skipping on windows")
|
|
}
|
|
|
|
f, err := os.Open("testdata/metrics-test.prom")
|
|
require.NoError(t, err)
|
|
defer f.Close()
|
|
|
|
stats, total, err := checkMetricsExtended(f)
|
|
require.NoError(t, err)
|
|
require.Equal(t, 27, total)
|
|
require.Equal(t, []metricStat{
|
|
{
|
|
name: "prometheus_tsdb_compaction_chunk_size_bytes",
|
|
cardinality: 15,
|
|
percentage: float64(15) / float64(27),
|
|
},
|
|
{
|
|
name: "go_gc_duration_seconds",
|
|
cardinality: 7,
|
|
percentage: float64(7) / float64(27),
|
|
},
|
|
{
|
|
name: "net_conntrack_dialer_conn_attempted_total",
|
|
cardinality: 4,
|
|
percentage: float64(4) / float64(27),
|
|
},
|
|
{
|
|
name: "go_info",
|
|
cardinality: 1,
|
|
percentage: float64(1) / float64(27),
|
|
},
|
|
}, stats)
|
|
}
|
|
|
|
func TestExitCodes(t *testing.T) {
|
|
if testing.Short() {
|
|
t.Skip("skipping test in short mode.")
|
|
}
|
|
|
|
for _, c := range []struct {
|
|
file string
|
|
exitCode int
|
|
lintIssue bool
|
|
}{
|
|
{
|
|
file: "prometheus-config.good.yml",
|
|
},
|
|
{
|
|
file: "prometheus-config.bad.yml",
|
|
exitCode: 1,
|
|
},
|
|
{
|
|
file: "prometheus-config.nonexistent.yml",
|
|
exitCode: 1,
|
|
},
|
|
{
|
|
file: "prometheus-config.lint.yml",
|
|
lintIssue: true,
|
|
exitCode: 3,
|
|
},
|
|
} {
|
|
t.Run(c.file, func(t *testing.T) {
|
|
for _, lintFatal := range []bool{true, false} {
|
|
t.Run(strconv.FormatBool(lintFatal), func(t *testing.T) {
|
|
args := []string{"-test.main", "check", "config", "testdata/" + c.file}
|
|
if lintFatal {
|
|
args = append(args, "--lint-fatal")
|
|
}
|
|
tool := exec.Command(promtoolPath, args...)
|
|
err := tool.Run()
|
|
if c.exitCode == 0 || (c.lintIssue && !lintFatal) {
|
|
require.NoError(t, err)
|
|
return
|
|
}
|
|
|
|
require.Error(t, err)
|
|
|
|
var exitError *exec.ExitError
|
|
if errors.As(err, &exitError) {
|
|
status := exitError.Sys().(syscall.WaitStatus)
|
|
require.Equal(t, c.exitCode, status.ExitStatus())
|
|
} else {
|
|
t.Errorf("unable to retrieve the exit status for promtool: %v", err)
|
|
}
|
|
})
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestDocumentation(t *testing.T) {
|
|
if runtime.GOOS == "windows" {
|
|
t.SkipNow()
|
|
}
|
|
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
|
|
defer cancel()
|
|
|
|
cmd := exec.CommandContext(ctx, promtoolPath, "-test.main", "write-documentation")
|
|
|
|
var stdout bytes.Buffer
|
|
cmd.Stdout = &stdout
|
|
|
|
if err := cmd.Run(); err != nil {
|
|
var exitError *exec.ExitError
|
|
if errors.As(err, &exitError) && exitError.ExitCode() != 0 {
|
|
fmt.Println("Command failed with non-zero exit code")
|
|
}
|
|
}
|
|
|
|
generatedContent := strings.ReplaceAll(stdout.String(), filepath.Base(promtoolPath), strings.TrimSuffix(filepath.Base(promtoolPath), ".test"))
|
|
|
|
expectedContent, err := os.ReadFile(filepath.Join("..", "..", "docs", "command-line", "promtool.md"))
|
|
require.NoError(t, err)
|
|
|
|
require.Equal(t, string(expectedContent), generatedContent, "Generated content does not match documentation. Hint: run `make cli-documentation`.")
|
|
}
|
|
|
|
func TestCheckRules(t *testing.T) {
|
|
t.Run("rules-good", func(t *testing.T) {
|
|
data, err := os.ReadFile("./testdata/rules.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(newLintConfig(lintOptionDuplicateRules, false))
|
|
require.Equal(t, successExitCode, exitCode, "")
|
|
})
|
|
|
|
t.Run("rules-bad", func(t *testing.T) {
|
|
data, err := os.ReadFile("./testdata/rules-bad.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(newLintConfig(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(newLintConfig(lintOptionDuplicateRules, true))
|
|
require.Equal(t, lintErrExitCode, exitCode, "")
|
|
})
|
|
}
|
|
|
|
func TestCheckRulesWithRuleFiles(t *testing.T) {
|
|
t.Run("rules-good", func(t *testing.T) {
|
|
exitCode := CheckRules(newLintConfig(lintOptionDuplicateRules, false), "./testdata/rules.yml")
|
|
require.Equal(t, successExitCode, exitCode, "")
|
|
})
|
|
|
|
t.Run("rules-bad", func(t *testing.T) {
|
|
exitCode := CheckRules(newLintConfig(lintOptionDuplicateRules, false), "./testdata/rules-bad.yml")
|
|
require.Equal(t, failureExitCode, exitCode, "")
|
|
})
|
|
|
|
t.Run("rules-lint-fatal", func(t *testing.T) {
|
|
exitCode := CheckRules(newLintConfig(lintOptionDuplicateRules, true), "./testdata/prometheus-rules.lint.yml")
|
|
require.Equal(t, lintErrExitCode, exitCode, "")
|
|
})
|
|
}
|