VictoriaMetrics/app/victoria-metrics/main_test.go
2019-09-08 19:48:38 +03:00

358 lines
9 KiB
Go

// +build integration
package main
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"net"
"net/http"
"os"
"path/filepath"
"reflect"
"strings"
"testing"
"time"
testutil "github.com/VictoriaMetrics/VictoriaMetrics/app/victoria-metrics/test"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vminsert"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmstorage"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
)
const (
testFixturesDir = "testdata"
testStorageSuffix = "vm-test-storage"
testHTTPListenAddr = ":7654"
testStatsDListenAddr = ":2003"
testOpenTSDBListenAddr = ":4242"
testOpenTSDBHTTPListenAddr = ":4243"
testLogLevel = "INFO"
)
const (
testReadHTTPPath = "http://127.0.0.1" + testHTTPListenAddr
testWriteHTTPPath = "http://127.0.0.1" + testHTTPListenAddr + "/write"
testOpenTSDBWriteHTTPPath = "http://127.0.0.1" + testOpenTSDBHTTPListenAddr + "/api/put"
testPromWriteHTTPPath = "http://127.0.0.1" + testHTTPListenAddr + "/api/v1/write"
testHealthHTTPPath = "http://127.0.0.1" + testHTTPListenAddr + "/health"
)
const (
testStorageInitTimeout = 10 * time.Second
)
const (
tplWordTime = "{TIME}"
tplQuotedWordTimeSeconds = `"{TIME_S}"`
tplQuotedWordTimeMillis = `"{TIME_MS}"`
)
var (
storagePath string
insertionTime = time.Now().UTC()
)
type test struct {
Name string `json:"name"`
Data string `json:"data"`
Query string `json:"query"`
Result []Row `json:"result"`
}
type Row struct {
Metric map[string]string `json:"metric"`
Values []float64 `json:"values"`
Timestamps []int64 `json:"timestamps"`
}
func (r *Row) UnmarshalJSON(b []byte) error {
type withoutInterface Row
var to withoutInterface
if err := json.Unmarshal(populateTimeTpl(b), &to); err != nil {
return err
}
*r = Row(to)
return nil
}
func populateTimeTpl(b []byte) []byte {
var (
tplTimeToQuotedMS = [2][]byte{[]byte(tplQuotedWordTimeMillis), []byte(fmt.Sprintf("%d", timeToMillis(insertionTime)))}
tpsTimeToQuotedS = [2][]byte{[]byte(tplQuotedWordTimeSeconds), []byte(fmt.Sprintf("%d", insertionTime.Unix()*1e3))}
)
tpls := [][2][]byte{
tplTimeToQuotedMS, tpsTimeToQuotedS,
}
for i := range tpls {
b = bytes.ReplaceAll(b, tpls[i][0], tpls[i][1])
}
return b
}
func TestMain(m *testing.M) {
setUp()
code := m.Run()
tearDown()
os.Exit(code)
}
func setUp() {
storagePath = filepath.Join(os.TempDir(), testStorageSuffix)
processFlags()
logger.Init()
vmstorage.InitWithoutMetrics()
vmselect.Init()
vminsert.Init()
go httpserver.Serve(*httpListenAddr, requestHandler)
readyStorageCheckFunc := func() bool {
resp, err := http.Get(testHealthHTTPPath)
if err != nil {
return false
}
resp.Body.Close()
return resp.StatusCode == 200
}
if err := waitFor(testStorageInitTimeout, readyStorageCheckFunc); err != nil {
log.Fatalf("http server can't start for %s seconds, err %s", testStorageInitTimeout, err)
}
}
func processFlags() {
flag.Parse()
for _, fv := range []struct {
flag string
value string
}{
{flag: "storageDataPath", value: storagePath},
{flag: "httpListenAddr", value: testHTTPListenAddr},
{flag: "graphiteListenAddr", value: testStatsDListenAddr},
{flag: "opentsdbListenAddr", value: testOpenTSDBListenAddr},
{flag: "loggerLevel", value: testLogLevel},
{flag: "opentsdbHTTPListenAddr", value: testOpenTSDBHTTPListenAddr},
} {
// panics if flag doesn't exist
if err := flag.Lookup(fv.flag).Value.Set(fv.value); err != nil {
log.Fatalf("unable to set %q with value %q, err: %v", fv.flag, fv.value, err)
}
}
}
func waitFor(timeout time.Duration, f func() bool) error {
fraction := timeout / 10
for i := fraction; i < timeout; i += fraction {
if f() {
return nil
}
time.Sleep(fraction)
}
return fmt.Errorf("timeout")
}
func tearDown() {
if err := httpserver.Stop(*httpListenAddr); err != nil {
log.Printf("cannot stop the webservice: %s", err)
}
vminsert.Stop()
vmstorage.Stop()
vmselect.Stop()
fs.MustRemoveAll(storagePath)
fs.MustStopDirRemover()
}
func TestWriteRead(t *testing.T) {
t.Run("write", testWrite)
time.Sleep(1 * time.Second)
vmstorage.Stop()
// open storage after stop in write
vmstorage.InitWithoutMetrics()
t.Run("read", testRead)
}
func testWrite(t *testing.T) {
t.Run("prometheus", func(t *testing.T) {
for _, test := range readIn("prometheus", t, fmt.Sprintf("%d", timeToMillis(insertionTime))) {
s := newSuite(t)
r := testutil.WriteRequest{}
s.noError(json.Unmarshal([]byte(test.Data), &r.Timeseries))
data, err := testutil.Compress(r)
s.greaterThan(len(r.Timeseries), 0)
if err != nil {
t.Errorf("error compressing %v %s", r, err)
t.Fail()
}
httpWrite(t, testPromWriteHTTPPath, bytes.NewBuffer(data))
}
})
t.Run("influxdb", func(t *testing.T) {
for _, x := range readIn("influxdb", t, fmt.Sprintf("%d", insertionTime.UnixNano())) {
test := x
t.Run(test.Name, func(t *testing.T) {
t.Parallel()
httpWrite(t, testWriteHTTPPath, bytes.NewBufferString(test.Data))
})
}
})
t.Run("graphite", func(t *testing.T) {
for _, x := range readIn("graphite", t, fmt.Sprintf("%d", insertionTime.Unix())) {
test := x
t.Run(test.Name, func(t *testing.T) {
t.Parallel()
tcpWrite(t, "127.0.0.1"+testStatsDListenAddr, test.Data)
})
}
})
t.Run("opentsdb", func(t *testing.T) {
for _, x := range readIn("opentsdb", t, fmt.Sprintf("%d", insertionTime.Unix())) {
test := x
t.Run(test.Name, func(t *testing.T) {
t.Parallel()
tcpWrite(t, "127.0.0.1"+testOpenTSDBListenAddr, test.Data)
})
}
})
t.Run("opentsdbhttp", func(t *testing.T) {
for _, x := range readIn("opentsdbhttp", t, fmt.Sprintf("%d", insertionTime.Unix())) {
test := x
t.Run(test.Name, func(t *testing.T) {
t.Parallel()
logger.Infof("writing %s", test.Data)
httpWrite(t, testOpenTSDBWriteHTTPPath, bytes.NewBufferString(test.Data))
})
}
})
}
func testRead(t *testing.T) {
for _, engine := range []string{"prometheus", "graphite", "opentsdb", "influxdb", "opentsdbhttp"} {
t.Run(engine, func(t *testing.T) {
for _, x := range readIn(engine, t, fmt.Sprintf("%d", insertionTime.UnixNano())) {
test := x
t.Run(test.Name, func(t *testing.T) {
t.Parallel()
rowContains(t, httpRead(t, testReadHTTPPath, test.Query), test.Result)
})
}
})
}
}
func readIn(readFor string, t *testing.T, timeStr string) []test {
t.Helper()
s := newSuite(t)
var tt []test
s.noError(filepath.Walk(filepath.Join(testFixturesDir, readFor), func(path string, info os.FileInfo, err error) error {
if filepath.Ext(path) != ".json" {
return nil
}
b, err := ioutil.ReadFile(path)
s.noError(err)
item := test{}
s.noError(json.Unmarshal(b, &item))
item.Data = strings.Replace(item.Data, tplWordTime, timeStr, -1)
tt = append(tt, item)
return nil
}))
if len(tt) == 0 {
t.Fatalf("no test found in %s", filepath.Join(testFixturesDir, readFor))
}
return tt
}
func httpWrite(t *testing.T, address string, r io.Reader) {
t.Helper()
s := newSuite(t)
resp, err := http.Post(address, "", r)
s.noError(err)
s.noError(resp.Body.Close())
s.equalInt(resp.StatusCode, 204)
}
func tcpWrite(t *testing.T, address string, data string) {
t.Helper()
s := newSuite(t)
conn, err := net.Dial("tcp", address)
s.noError(err)
defer conn.Close()
n, err := conn.Write([]byte(data))
s.noError(err)
s.equalInt(n, len(data))
}
func httpRead(t *testing.T, address, query string) []Row {
t.Helper()
s := newSuite(t)
resp, err := http.Get(address + query)
s.noError(err)
defer resp.Body.Close()
s.equalInt(resp.StatusCode, 200)
var rows []Row
for dec := json.NewDecoder(resp.Body); dec.More(); {
var row Row
s.noError(dec.Decode(&row))
rows = append(rows, row)
}
return rows
}
func rowContains(t *testing.T, rows, contains []Row) {
t.Helper()
for _, r := range rows {
contains = removeIfFound(r, contains)
}
if len(contains) > 0 {
t.Fatalf("result rows %+v not found in %+v", contains, rows)
}
}
func removeIfFound(r Row, contains []Row) []Row {
for i, item := range contains {
if reflect.DeepEqual(r.Metric, item.Metric) && reflect.DeepEqual(r.Values, item.Values) &&
reflect.DeepEqual(r.Timestamps, item.Timestamps) {
contains[i] = contains[len(contains)-1]
return contains[:len(contains)-1]
}
}
return contains
}
type suite struct{ t *testing.T }
func newSuite(t *testing.T) *suite { return &suite{t: t} }
func (s *suite) noError(err error) {
s.t.Helper()
if err != nil {
s.t.Errorf("unexpected error %v", err)
s.t.FailNow()
}
}
func (s *suite) equalInt(a, b int) {
s.t.Helper()
if a != b {
s.t.Errorf("%d not equal %d", a, b)
s.t.FailNow()
}
}
func (s *suite) greaterThan(a, b int) {
s.t.Helper()
if a <= b {
s.t.Errorf("%d less or equal then %d", a, b)
s.t.FailNow()
}
}
func timeToMillis(t time.Time) int64 {
return t.UnixNano() / 1e6
}