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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build race
package race_test
import (
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"regexp"
"strings"
"testing"
)
func TestOutput(t *testing.T) {
for _, test := range tests {
dir, err := ioutil.TempDir("", "go-build")
if err != nil {
t.Fatalf("failed to create temp directory: %v", err)
}
defer os.RemoveAll(dir)
src := filepath.Join(dir, "main.go")
f, err := os.Create(src)
if err != nil {
t.Fatalf("failed to create file: %v", err)
}
_, err = f.WriteString(test.source)
if err != nil {
f.Close()
t.Fatalf("failed to write: %v", err)
}
if err := f.Close(); err != nil {
t.Fatalf("failed to close file: %v", err)
}
// Pass -l to the compiler to test stack traces.
cmd := exec.Command("go", "run", "-race", "-gcflags=-l", src)
// GODEBUG spoils program output, GOMAXPROCS makes it flaky.
for _, env := range os.Environ() {
if strings.HasPrefix(env, "GODEBUG=") ||
strings.HasPrefix(env, "GOMAXPROCS=") ||
strings.HasPrefix(env, "GORACE=") {
continue
}
cmd.Env = append(cmd.Env, env)
}
cmd.Env = append(cmd.Env, "GORACE="+test.gorace)
got, _ := cmd.CombinedOutput()
if !regexp.MustCompile(test.re).MatchString(string(got)) {
t.Fatalf("failed test case %v, expect:\n%v\ngot:\n%s",
test.name, test.re, got)
}
}
}
var tests = []struct {
name string
gorace string
source string
re string
}{
{"simple", "atexit_sleep_ms=0", `
package main
import "time"
func main() {
done := make(chan bool)
x := 0
startRacer(&x, done)
store(&x, 43)
<-done
}
func store(x *int, v int) {
*x = v
}
func startRacer(x *int, done chan bool) {
go racer(x, done)
}
func racer(x *int, done chan bool) {
time.Sleep(10*time.Millisecond)
store(x, 42)
done <- true
}
`, `==================
WARNING: DATA RACE
Write by goroutine [0-9]:
main\.store\(\)
.+/main\.go:12 \+0x[0-9,a-f]+
main\.racer\(\)
.+/main\.go:19 \+0x[0-9,a-f]+
Previous write by main goroutine:
main\.store\(\)
.+/main\.go:12 \+0x[0-9,a-f]+
main\.main\(\)
.+/main\.go:8 \+0x[0-9,a-f]+
Goroutine [0-9] \(running\) created at:
main\.startRacer\(\)
.+/main\.go:15 \+0x[0-9,a-f]+
main\.main\(\)
.+/main\.go:7 \+0x[0-9,a-f]+
==================
Found 1 data race\(s\)
exit status 66
`},
{"exitcode", "atexit_sleep_ms=0 exitcode=13", `
package main
func main() {
done := make(chan bool)
x := 0
go func() {
x = 42
done <- true
}()
x = 43
<-done
}
`, `exit status 13`},
{"strip_path_prefix", "atexit_sleep_ms=0 strip_path_prefix=/main.", `
package main
func main() {
done := make(chan bool)
x := 0
go func() {
x = 42
done <- true
}()
x = 43
<-done
}
`, `
go:7 \+0x[0-9,a-f]+
`},
{"halt_on_error", "atexit_sleep_ms=0 halt_on_error=1", `
package main
func main() {
done := make(chan bool)
x := 0
go func() {
x = 42
done <- true
}()
x = 43
<-done
}
`, `
==================
exit status 66
`},
}
|
