/
ut.go
823 lines (726 loc) · 17.9 KB
/
ut.go
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// Copyright 2024 TiKV Project 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"
"encoding/xml"
"errors"
"fmt"
"io"
"log"
"math/rand"
"os"
"os/exec"
"path"
"regexp"
"runtime"
"strconv"
"strings"
"sync"
"time"
// Set the correct value when it runs inside docker.
_ "go.uber.org/automaxprocs"
)
func usage() bool {
msg := `// run all tests
pd-ut
// show usage
pd-ut -h
// list all packages
pd-ut list
// list test cases of a single package
pd-ut list $package
// list test cases that match a pattern
pd-ut list $package 'r:$regex'
// run all tests
pd-ut run
// run test all cases of a single package
pd-ut run $package
// run test cases of a single package
pd-ut run $package $test
// run test cases that match a pattern
pd-ut run $package 'r:$regex'
// build all test package
pd-ut build
// build a test package
pd-ut build xxx
// write the junitfile
pd-ut run --junitfile xxx
// test with race flag
pd-ut run --race`
fmt.Println(msg)
return true
}
const modulePath = "github.com/tikv/pd"
var (
// runtime
p int
buildParallel int
workDir string
// arguments
race bool
junitFile string
)
func main() {
race = handleFlag("--race")
junitFile = stripFlag("--junitfile")
// Get the correct count of CPU if it's in docker.
p = runtime.GOMAXPROCS(0)
// We use 2 * p for `go build` to make it faster.
buildParallel = p * 2
var err error
workDir, err = os.Getwd()
if err != nil {
fmt.Println("os.Getwd() error", err)
}
var isSucceed bool
// run all tests
if len(os.Args) == 1 {
isSucceed = cmdRun()
}
if len(os.Args) >= 2 {
switch os.Args[1] {
case "list":
isSucceed = cmdList(os.Args[2:]...)
case "build":
isSucceed = cmdBuild(os.Args[2:]...)
case "run":
isSucceed = cmdRun(os.Args[2:]...)
default:
isSucceed = usage()
}
}
if !isSucceed {
os.Exit(1)
}
}
func cmdList(args ...string) bool {
pkgs, err := listPackages()
if err != nil {
log.Println("list package error", err)
return false
}
// list all packages
if len(args) == 0 {
for _, pkg := range pkgs {
fmt.Println(pkg)
}
return false
}
// list test case of a single package
if len(args) == 1 || len(args) == 2 {
pkg := args[0]
pkgs = filter(pkgs, func(s string) bool { return s == pkg })
if len(pkgs) != 1 {
fmt.Println("package not exist", pkg)
return false
}
err := buildTestBinary(pkg)
if err != nil {
log.Println("build package error", pkg, err)
return false
}
exist, err := testBinaryExist(pkg)
if err != nil {
log.Println("check test binary existence error", err)
return false
}
if !exist {
fmt.Println("no test case in ", pkg)
return false
}
res := listTestCases(pkg, nil)
if len(args) == 2 {
res, err = filterTestCases(res, args[1])
if err != nil {
log.Println("filter test cases error", err)
return false
}
}
for _, x := range res {
fmt.Println(x.test)
}
}
return true
}
func cmdBuild(args ...string) bool {
pkgs, err := listPackages()
if err != nil {
log.Println("list package error", err)
return false
}
// build all packages
if len(args) == 0 {
err := buildTestBinaryMulti(pkgs)
if err != nil {
fmt.Println("build package error", pkgs, err)
return false
}
return true
}
// build test binary of a single package
if len(args) >= 1 {
pkg := args[0]
err := buildTestBinary(pkg)
if err != nil {
log.Println("build package error", pkg, err)
return false
}
}
return true
}
func cmdRun(args ...string) bool {
var err error
pkgs, err := listPackages()
if err != nil {
fmt.Println("list packages error", err)
return false
}
tasks := make([]task, 0, 5000)
start := time.Now()
// run all tests
if len(args) == 0 {
err := buildTestBinaryMulti(pkgs)
if err != nil {
fmt.Println("build package error", pkgs, err)
return false
}
for _, pkg := range pkgs {
exist, err := testBinaryExist(pkg)
if err != nil {
fmt.Println("check test binary existence error", err)
return false
}
if !exist {
fmt.Println("no test case in ", pkg)
continue
}
tasks = listTestCases(pkg, tasks)
}
}
// run tests for a single package
if len(args) == 1 {
pkg := args[0]
err := buildTestBinary(pkg)
if err != nil {
log.Println("build package error", pkg, err)
return false
}
exist, err := testBinaryExist(pkg)
if err != nil {
log.Println("check test binary existence error", err)
return false
}
if !exist {
fmt.Println("no test case in ", pkg)
return false
}
tasks = listTestCases(pkg, tasks)
}
// run a single test
if len(args) == 2 {
pkg := args[0]
err := buildTestBinary(pkg)
if err != nil {
log.Println("build package error", pkg, err)
return false
}
exist, err := testBinaryExist(pkg)
if err != nil {
log.Println("check test binary existence error", err)
return false
}
if !exist {
fmt.Println("no test case in ", pkg)
return false
}
tasks = listTestCases(pkg, tasks)
tasks, err = filterTestCases(tasks, args[1])
if err != nil {
log.Println("filter test cases error", err)
return false
}
}
fmt.Printf("building task finish, parallelism=%d, count=%d, takes=%v\n", buildParallel, len(tasks), time.Since(start))
taskCh := make(chan task, 100)
works := make([]numa, p)
var wg sync.WaitGroup
for i := 0; i < p; i++ {
wg.Add(1)
go works[i].worker(&wg, taskCh)
}
shuffle(tasks)
start = time.Now()
for _, task := range tasks {
taskCh <- task
}
close(taskCh)
wg.Wait()
fmt.Println("run all tasks takes", time.Since(start))
if junitFile != "" {
out := collectTestResults(works)
f, err := os.Create(junitFile)
if err != nil {
fmt.Println("create junit file fail:", err)
return false
}
if err := write(f, out); err != nil {
fmt.Println("write junit file error:", err)
return false
}
}
for _, work := range works {
if work.Fail {
return false
}
}
return true
}
// stripFlag strip the '--flag xxx' from the command line os.Args
// Example of the os.Args changes
// Before: ut run pkg TestXXX --junitfile yyy
// After: ut run pkg TestXXX
// The value of the flag is returned.
func stripFlag(flag string) string {
var res string
tmp := os.Args[:0]
// Iter to the flag
var i int
for ; i < len(os.Args); i++ {
if os.Args[i] == flag {
i++
break
}
tmp = append(tmp, os.Args[i])
}
// Handle the flag
if i < len(os.Args) {
res = os.Args[i]
i++
}
// Iter the remain flags
for ; i < len(os.Args); i++ {
tmp = append(tmp, os.Args[i])
}
os.Args = tmp
return res
}
func handleFlag(f string) (found bool) {
tmp := os.Args[:0]
for i := 0; i < len(os.Args); i++ {
if os.Args[i] == f {
found = true
continue
}
tmp = append(tmp, os.Args[i])
}
os.Args = tmp
return
}
type task struct {
pkg string
test string
}
func (t *task) String() string {
return t.pkg + " " + t.test
}
func listTestCases(pkg string, tasks []task) []task {
newCases := listNewTestCases(pkg)
for _, c := range newCases {
tasks = append(tasks, task{pkg, c})
}
return tasks
}
func filterTestCases(tasks []task, arg1 string) ([]task, error) {
if strings.HasPrefix(arg1, "r:") {
r, err := regexp.Compile(arg1[2:])
if err != nil {
return nil, err
}
tmp := tasks[:0]
for _, task := range tasks {
if r.MatchString(task.test) {
tmp = append(tmp, task)
}
}
return tmp, nil
}
tmp := tasks[:0]
for _, task := range tasks {
if strings.Contains(task.test, arg1) {
tmp = append(tmp, task)
}
}
return tmp, nil
}
func listPackages() ([]string, error) {
cmd := exec.Command("go", "list", "./...")
ss, err := cmdToLines(cmd)
if err != nil {
return nil, withTrace(err)
}
ret := ss[:0]
for _, s := range ss {
if !strings.HasPrefix(s, modulePath) {
continue
}
pkg := s[len(modulePath)+1:]
if skipDIR(pkg) {
continue
}
ret = append(ret, pkg)
}
return ret, nil
}
type numa struct {
Fail bool
results []testResult
}
func (n *numa) worker(wg *sync.WaitGroup, ch chan task) {
defer wg.Done()
for t := range ch {
res := n.runTestCase(t.pkg, t.test)
if res.Failure != nil {
fmt.Println("[FAIL] ", t.pkg, t.test)
fmt.Fprintf(os.Stderr, "err=%s\n%s", res.err.Error(), res.Failure.Contents)
n.Fail = true
}
n.results = append(n.results, res)
}
}
type testResult struct {
JUnitTestCase
d time.Duration
err error
}
func (n *numa) runTestCase(pkg string, fn string) testResult {
res := testResult{
JUnitTestCase: JUnitTestCase{
ClassName: path.Join(modulePath, pkg),
Name: fn,
},
}
var buf bytes.Buffer
var err error
var start time.Time
for i := 0; i < 3; i++ {
cmd := n.testCommand(pkg, fn)
cmd.Dir = path.Join(workDir, pkg)
// Combine the test case output, so the run result for failed cases can be displayed.
cmd.Stdout = &buf
cmd.Stderr = &buf
start = time.Now()
err = cmd.Run()
if err != nil {
var exitError *exec.ExitError
if errors.As(err, &exitError) {
// Retry 3 times to get rid of the weird error:
switch err.Error() {
case "signal: segmentation fault (core dumped)":
buf.Reset()
continue
case "signal: trace/breakpoint trap (core dumped)":
buf.Reset()
continue
}
if strings.Contains(buf.String(), "panic during panic") {
buf.Reset()
continue
}
}
}
break
}
if err != nil {
res.Failure = &JUnitFailure{
Message: "Failed",
Contents: buf.String(),
}
res.err = err
}
res.d = time.Since(start)
res.Time = formatDurationAsSeconds(res.d)
return res
}
func collectTestResults(workers []numa) JUnitTestSuites {
version := goVersion()
// pkg => test cases
pkgs := make(map[string][]JUnitTestCase)
durations := make(map[string]time.Duration)
// The test result in workers are shuffled, so group by the packages here
for _, n := range workers {
for _, res := range n.results {
cases, ok := pkgs[res.ClassName]
if !ok {
cases = make([]JUnitTestCase, 0, 10)
}
cases = append(cases, res.JUnitTestCase)
pkgs[res.ClassName] = cases
durations[res.ClassName] += res.d
}
}
suites := JUnitTestSuites{}
// Turn every package result to a suite.
for pkg, cases := range pkgs {
suite := JUnitTestSuite{
Tests: len(cases),
Failures: failureCases(cases),
Time: formatDurationAsSeconds(durations[pkg]),
Name: pkg,
Properties: packageProperties(version),
TestCases: cases,
}
suites.Suites = append(suites.Suites, suite)
}
return suites
}
func failureCases(input []JUnitTestCase) int {
sum := 0
for _, v := range input {
if v.Failure != nil {
sum++
}
}
return sum
}
func (*numa) testCommand(pkg string, fn string) *exec.Cmd {
args := make([]string, 0, 10)
exe := "./" + testFileName(pkg)
args = append(args, "-test.cpu", "1")
if !race {
args = append(args, []string{"-test.timeout", "2m"}...)
} else {
// it takes a longer when race is enabled. so it is set more timeout value.
args = append(args, []string{"-test.timeout", "5m"}...)
}
// core.test -test.run TestClusteredPrefixColum
args = append(args, "-test.run", "^"+fn+"$")
return exec.Command(exe, args...)
}
func skipDIR(pkg string) bool {
skipDir := []string{"tests", "bin", "cmd", "tools"}
for _, ignore := range skipDir {
if strings.HasPrefix(pkg, ignore) {
return true
}
}
return false
}
func generateBuildCache() error {
// cd cmd/pd-server && go test -tags=tso_function_test,deadlock -exec-=true -vet=off -toolexec=go-compile-without-link
cmd := exec.Command("go", "test", "-exec=true", "-vet", "off", "--tags=tso_function_test,deadlock")
goCompileWithoutLink := fmt.Sprintf("-toolexec=%s/tools/pd-ut/go-compile-without-link.sh", workDir)
cmd.Args = append(cmd.Args, goCompileWithoutLink)
cmd.Dir = fmt.Sprintf("%s/cmd/pd-server", workDir)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return withTrace(err)
}
return nil
}
// buildTestBinaryMulti is much faster than build the test packages one by one.
func buildTestBinaryMulti(pkgs []string) error {
// staged build, generate the build cache for all the tests first, then generate the test binary.
// This way is faster than generating test binaries directly, because the cache can be used.
if err := generateBuildCache(); err != nil {
return withTrace(err)
}
// go test --exec=xprog --tags=tso_function_test,deadlock -vet=off --count=0 $(pkgs)
xprogPath := path.Join(workDir, "bin/xprog")
packages := make([]string, 0, len(pkgs))
for _, pkg := range pkgs {
packages = append(packages, path.Join(modulePath, pkg))
}
p := strconv.Itoa(buildParallel)
cmd := exec.Command("go", "test", "-p", p, "--exec", xprogPath, "-vet", "off", "--tags=tso_function_test,deadlock")
cmd.Args = append(cmd.Args, packages...)
cmd.Dir = workDir
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return withTrace(err)
}
return nil
}
func buildTestBinary(pkg string) error {
//nolint:gosec
cmd := exec.Command("go", "test", "-c", "-vet", "off", "--tags=tso_function_test,deadlock", "-o", testFileName(pkg), "-v")
if race {
cmd.Args = append(cmd.Args, "-race")
}
cmd.Dir = path.Join(workDir, pkg)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return withTrace(err)
}
return nil
}
func testBinaryExist(pkg string) (bool, error) {
_, err := os.Stat(testFileFullPath(pkg))
if err != nil {
var pathError *os.PathError
if errors.As(err, &pathError) {
return false, nil
}
}
return true, withTrace(err)
}
func testFileName(pkg string) string {
_, file := path.Split(pkg)
return file + ".test.bin"
}
func testFileFullPath(pkg string) string {
return path.Join(workDir, pkg, testFileName(pkg))
}
func listNewTestCases(pkg string) []string {
exe := "./" + testFileName(pkg)
// core.test -test.list Test
cmd := exec.Command(exe, "-test.list", "Test")
cmd.Dir = path.Join(workDir, pkg)
var buf bytes.Buffer
cmd.Stdout = &buf
err := cmd.Run()
res := strings.Split(buf.String(), "\n")
if err != nil && len(res) == 0 {
fmt.Println("err ==", err)
}
return filter(res, func(s string) bool {
return strings.HasPrefix(s, "Test") && s != "TestT" && s != "TestBenchDaily"
})
}
func cmdToLines(cmd *exec.Cmd) ([]string, error) {
res, err := cmd.Output()
if err != nil {
return nil, withTrace(err)
}
ss := bytes.Split(res, []byte{'\n'})
ret := make([]string, len(ss))
for i, s := range ss {
ret[i] = string(s)
}
return ret, nil
}
func filter(input []string, f func(string) bool) []string {
ret := input[:0]
for _, s := range input {
if f(s) {
ret = append(ret, s)
}
}
return ret
}
func shuffle(tasks []task) {
for i := 0; i < len(tasks); i++ {
pos := rand.Intn(len(tasks))
tasks[i], tasks[pos] = tasks[pos], tasks[i]
}
}
type errWithStack struct {
err error
buf []byte
}
func (e *errWithStack) Error() string {
return e.err.Error() + "\n" + string(e.buf)
}
func withTrace(err error) error {
if err == nil {
return err
}
var errStack *errWithStack
if errors.As(err, &errStack) {
return err
}
var stack [4096]byte
sz := runtime.Stack(stack[:], false)
return &errWithStack{err, stack[:sz]}
}
func formatDurationAsSeconds(d time.Duration) string {
return fmt.Sprintf("%f", d.Seconds())
}
func packageProperties(goVersion string) []JUnitProperty {
return []JUnitProperty{
{Name: "go.version", Value: goVersion},
}
}
// goVersion returns the version as reported by the go binary in PATH. This
// version will not be the same as runtime.Version, which is always the version
// of go used to build the gotestsum binary.
//
// To skip the os/exec call set the GOVERSION environment variable to the
// desired value.
func goVersion() string {
if version, ok := os.LookupEnv("GOVERSION"); ok {
return version
}
cmd := exec.Command("go", "version")
out, err := cmd.Output()
if err != nil {
return "unknown"
}
return strings.TrimPrefix(strings.TrimSpace(string(out)), "go version ")
}
func write(out io.Writer, suites JUnitTestSuites) error {
doc, err := xml.MarshalIndent(suites, "", "\t")
if err != nil {
return err
}
_, err = out.Write([]byte(xml.Header))
if err != nil {
return err
}
_, err = out.Write(doc)
return err
}
// JUnitTestSuites is a collection of JUnit test suites.
type JUnitTestSuites struct {
XMLName xml.Name `xml:"testsuites"`
Suites []JUnitTestSuite
}
// JUnitTestSuite is a single JUnit test suite which may contain many
// testcases.
type JUnitTestSuite struct {
XMLName xml.Name `xml:"testsuite"`
Tests int `xml:"tests,attr"`
Failures int `xml:"failures,attr"`
Time string `xml:"time,attr"`
Name string `xml:"name,attr"`
Properties []JUnitProperty `xml:"properties>property,omitempty"`
TestCases []JUnitTestCase
}
// JUnitTestCase is a single test case with its result.
type JUnitTestCase struct {
XMLName xml.Name `xml:"testcase"`
ClassName string `xml:"classname,attr"`
Name string `xml:"name,attr"`
Time string `xml:"time,attr"`
SkipMessage *JUnitSkipMessage `xml:"skipped,omitempty"`
Failure *JUnitFailure `xml:"failure,omitempty"`
}
// JUnitSkipMessage contains the reason why a testcase was skipped.
type JUnitSkipMessage struct {
Message string `xml:"message,attr"`
}
// JUnitProperty represents a key/value pair used to define properties.
type JUnitProperty struct {
Name string `xml:"name,attr"`
Value string `xml:"value,attr"`
}
// JUnitFailure contains data related to a failed test.
type JUnitFailure struct {
Message string `xml:"message,attr"`
Type string `xml:"type,attr"`
Contents string `xml:",chardata"`
}