1 // Copyright 2012 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package race_test 6 7 import ( 8 "fmt" 9 "io/ioutil" 10 "net/http" 11 "os" 12 "path/filepath" 13 "testing" 14 "time" 15 ) 16 17 func TestNoRaceIOFile(t *testing.T) { 18 x := 0 19 path, _ := ioutil.TempDir("", "race_test") 20 fname := filepath.Join(path, "data") 21 go func() { 22 x = 42 23 f, _ := os.Create(fname) 24 f.Write([]byte("done")) 25 f.Close() 26 }() 27 for { 28 f, err := os.Open(fname) 29 if err != nil { 30 time.Sleep(1e6) 31 continue 32 } 33 buf := make([]byte, 100) 34 count, err := f.Read(buf) 35 if count == 0 { 36 time.Sleep(1e6) 37 continue 38 } 39 break 40 } 41 _ = x 42 } 43 44 func TestNoRaceIOHttp(t *testing.T) { 45 x := 0 46 go func() { 47 http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { 48 x = 41 49 fmt.Fprintf(w, "test") 50 x = 42 51 }) 52 err := http.ListenAndServe("127.0.0.1:23651", nil) 53 if err != nil { 54 t.Fatalf("http.ListenAndServe: %v", err) 55 } 56 }() 57 time.Sleep(1e7) 58 x = 1 59 _, err := http.Get("http://127.0.0.1:23651") 60 if err != nil { 61 t.Fatalf("http.Get: %v", err) 62 } 63 x = 2 64 _, err = http.Get("http://127.0.0.1:23651") 65 if err != nil { 66 t.Fatalf("http.Get: %v", err) 67 } 68 x = 3 69 } 70
