1 // run 2 3 // Copyright 2015 The Go Authors. All rights reserved. 4 // Use of this source code is governed by a BSD-style 5 // license that can be found in the LICENSE file. 6 7 // Test error message when EOF is encountered in the 8 // middle of a BOM. 9 // 10 // Since the error requires an EOF, we cannot use the 11 // errorcheckoutput mechanism. 12 13 package main 14 15 import ( 16 "io/ioutil" 17 "log" 18 "os" 19 "os/exec" 20 "runtime" 21 "strings" 22 ) 23 24 func main() { 25 // cannot use temp file on nacl via child process 26 if runtime.GOOS == "nacl" { 27 return 28 } 29 30 // create source 31 f, err := ioutil.TempFile("", "issue13268-") 32 if err != nil { 33 log.Fatalf("could not create source file: %v", err) 34 } 35 f.Write([]byte("package p\n\nfunc \xef\xef")) // if this fails, we will die later 36 f.Close() 37 defer os.Remove(f.Name()) 38 39 // compile and test output 40 cmd := exec.Command("go", "tool", "compile", f.Name()) 41 out, err := cmd.CombinedOutput() 42 if err == nil { 43 log.Fatalf("expected cmd/compile to fail") 44 } 45 if strings.HasPrefix(string(out), "illegal UTF-8 sequence") { 46 log.Fatalf("error %q not found", out) 47 } 48 } 49
