summaryrefslogtreecommitdiffstats
path: root/src/runtime/race/output_test.go
diff options
context:
space:
mode:
Diffstat (limited to 'src/runtime/race/output_test.go')
-rw-r--r--src/runtime/race/output_test.go412
1 files changed, 412 insertions, 0 deletions
diff --git a/src/runtime/race/output_test.go b/src/runtime/race/output_test.go
new file mode 100644
index 0000000..6949687
--- /dev/null
+++ b/src/runtime/race/output_test.go
@@ -0,0 +1,412 @@
+// 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 (
+ "internal/testenv"
+ "os"
+ "os/exec"
+ "path/filepath"
+ "regexp"
+ "runtime"
+ "strings"
+ "testing"
+)
+
+func TestOutput(t *testing.T) {
+ pkgdir, err := os.MkdirTemp("", "go-build-race-output")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer os.RemoveAll(pkgdir)
+ out, err := exec.Command(testenv.GoToolPath(t), "install", "-race", "-pkgdir="+pkgdir, "testing").CombinedOutput()
+ if err != nil {
+ t.Fatalf("go install -race: %v\n%s", err, out)
+ }
+
+ for _, test := range tests {
+ if test.goos != "" && test.goos != runtime.GOOS {
+ t.Logf("test %v runs only on %v, skipping: ", test.name, test.goos)
+ continue
+ }
+ dir, err := os.MkdirTemp("", "go-build")
+ if err != nil {
+ t.Fatalf("failed to create temp directory: %v", err)
+ }
+ defer os.RemoveAll(dir)
+ source := "main.go"
+ if test.run == "test" {
+ source = "main_test.go"
+ }
+ src := filepath.Join(dir, source)
+ 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)
+ }
+
+ cmd := exec.Command(testenv.GoToolPath(t), test.run, "-race", "-pkgdir="+pkgdir, 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,
+ "GOMAXPROCS=1", // see comment in race_test.go
+ "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
+ run string
+ goos string
+ gorace string
+ source string
+ re string
+}{
+ {"simple", "run", "", "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 at 0x[0-9,a-f]+ 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 at 0x[0-9,a-f]+ 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", "run", "", "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", "run", "", "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", "run", "", "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
+`},
+
+ {"test_fails_on_race", "test", "", "atexit_sleep_ms=0", `
+package main_test
+import "testing"
+func TestFail(t *testing.T) {
+ done := make(chan bool)
+ x := 0
+ _ = x
+ go func() {
+ x = 42
+ done <- true
+ }()
+ x = 43
+ <-done
+ t.Log(t.Failed())
+}
+`, `
+==================
+--- FAIL: TestFail \(0...s\)
+.*main_test.go:14: true
+.*testing.go:.*: race detected during execution of test
+FAIL`},
+
+ {"slicebytetostring_pc", "run", "", "atexit_sleep_ms=0", `
+package main
+func main() {
+ done := make(chan string)
+ data := make([]byte, 10)
+ go func() {
+ done <- string(data)
+ }()
+ data[0] = 1
+ <-done
+}
+`, `
+ runtime\.slicebytetostring\(\)
+ .*/runtime/string\.go:.*
+ main\.main\.func1\(\)
+ .*/main.go:7`},
+
+ // Test for https://golang.org/issue/33309
+ {"midstack_inlining_traceback", "run", "linux", "atexit_sleep_ms=0", `
+package main
+
+var x int
+
+func main() {
+ c := make(chan int)
+ go f(c)
+ x = 1
+ <-c
+}
+
+func f(c chan int) {
+ g(c)
+}
+
+func g(c chan int) {
+ h(c)
+}
+
+func h(c chan int) {
+ c <- x
+}
+`, `==================
+WARNING: DATA RACE
+Read at 0x[0-9,a-f]+ by goroutine [0-9]:
+ main\.h\(\)
+ .+/main\.go:22 \+0x[0-9,a-f]+
+ main\.g\(\)
+ .+/main\.go:18 \+0x[0-9,a-f]+
+ main\.f\(\)
+ .+/main\.go:14 \+0x[0-9,a-f]+
+
+Previous write at 0x[0-9,a-f]+ by main goroutine:
+ main\.main\(\)
+ .+/main\.go:9 \+0x[0-9,a-f]+
+
+Goroutine [0-9] \(running\) created at:
+ main\.main\(\)
+ .+/main\.go:8 \+0x[0-9,a-f]+
+==================
+Found 1 data race\(s\)
+exit status 66
+`},
+
+ // Test for https://golang.org/issue/17190
+ {"external_cgo_thread", "run", "linux", "atexit_sleep_ms=0", `
+package main
+
+/*
+#include <pthread.h>
+typedef struct cb {
+ int foo;
+} cb;
+extern void goCallback();
+static inline void *threadFunc(void *p) {
+ goCallback();
+ return 0;
+}
+static inline void startThread(cb* c) {
+ pthread_t th;
+ pthread_create(&th, 0, threadFunc, 0);
+}
+*/
+import "C"
+
+var done chan bool
+var racy int
+
+//export goCallback
+func goCallback() {
+ racy++
+ done <- true
+}
+
+func main() {
+ done = make(chan bool)
+ var c C.cb
+ C.startThread(&c)
+ racy++
+ <- done
+}
+`, `==================
+WARNING: DATA RACE
+Read at 0x[0-9,a-f]+ by .*:
+ main\..*
+ .*/main\.go:[0-9]+ \+0x[0-9,a-f]+(?s).*
+
+Previous write at 0x[0-9,a-f]+ by .*:
+ main\..*
+ .*/main\.go:[0-9]+ \+0x[0-9,a-f]+(?s).*
+
+Goroutine [0-9] \(running\) created at:
+ runtime\.newextram\(\)
+ .*/runtime/proc.go:[0-9]+ \+0x[0-9,a-f]+
+==================`},
+ {"second_test_passes", "test", "", "atexit_sleep_ms=0", `
+package main_test
+import "testing"
+func TestFail(t *testing.T) {
+ done := make(chan bool)
+ x := 0
+ _ = x
+ go func() {
+ x = 42
+ done <- true
+ }()
+ x = 43
+ <-done
+}
+
+func TestPass(t *testing.T) {
+}
+`, `
+==================
+--- FAIL: TestFail \(0...s\)
+.*testing.go:.*: race detected during execution of test
+FAIL`},
+ {"mutex", "run", "", "atexit_sleep_ms=0", `
+package main
+import (
+ "sync"
+ "fmt"
+)
+func main() {
+ c := make(chan bool, 1)
+ threads := 1
+ iterations := 20000
+ data := 0
+ var wg sync.WaitGroup
+ for i := 0; i < threads; i++ {
+ wg.Add(1)
+ go func() {
+ defer wg.Done()
+ for i := 0; i < iterations; i++ {
+ c <- true
+ data += 1
+ <- c
+ }
+ }()
+ }
+ for i := 0; i < iterations; i++ {
+ c <- true
+ data += 1
+ <- c
+ }
+ wg.Wait()
+ if (data == iterations*(threads+1)) { fmt.Println("pass") }
+}`, `pass`},
+ // Test for https://github.com/golang/go/issues/37355
+ {"chanmm", "run", "", "atexit_sleep_ms=0", `
+package main
+import (
+ "sync"
+ "time"
+)
+func main() {
+ c := make(chan bool, 1)
+ var data uint64
+ var wg sync.WaitGroup
+ wg.Add(2)
+ c <- true
+ go func() {
+ defer wg.Done()
+ c <- true
+ }()
+ go func() {
+ defer wg.Done()
+ time.Sleep(time.Second)
+ <-c
+ data = 2
+ }()
+ data = 1
+ <-c
+ wg.Wait()
+ _ = data
+}
+`, `==================
+WARNING: DATA RACE
+Write at 0x[0-9,a-f]+ by goroutine [0-9]:
+ main\.main\.func2\(\)
+ .*/main\.go:21 \+0x[0-9,a-f]+
+
+Previous write at 0x[0-9,a-f]+ by main goroutine:
+ main\.main\(\)
+ .*/main\.go:23 \+0x[0-9,a-f]+
+
+Goroutine [0-9] \(running\) created at:
+ main\.main\(\)
+ .*/main.go:[0-9]+ \+0x[0-9,a-f]+
+==================`},
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-27 11:27:34 +0000