1 // Copyright 2013 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 // +build darwin dragonfly freebsd linux netbsd openbsd solaris 6 7 package exec 8 9 import ( 10 "io/ioutil" 11 "os" 12 "testing" 13 ) 14 15 func TestLookPathUnixEmptyPath(t *testing.T) { 16 tmp, err := ioutil.TempDir("", "TestLookPathUnixEmptyPath") 17 if err != nil { 18 t.Fatal("TempDir failed: ", err) 19 } 20 defer os.RemoveAll(tmp) 21 wd, err := os.Getwd() 22 if err != nil { 23 t.Fatal("Getwd failed: ", err) 24 } 25 err = os.Chdir(tmp) 26 if err != nil { 27 t.Fatal("Chdir failed: ", err) 28 } 29 defer os.Chdir(wd) 30 31 f, err := os.OpenFile("exec_me", os.O_CREATE|os.O_EXCL, 0700) 32 if err != nil { 33 t.Fatal("OpenFile failed: ", err) 34 } 35 err = f.Close() 36 if err != nil { 37 t.Fatal("Close failed: ", err) 38 } 39 40 pathenv := os.Getenv("PATH") 41 defer os.Setenv("PATH", pathenv) 42 43 err = os.Setenv("PATH", "") 44 if err != nil { 45 t.Fatal("Setenv failed: ", err) 46 } 47 48 path, err := LookPath("exec_me") 49 if err == nil { 50 t.Fatal("LookPath found exec_me in empty $PATH") 51 } 52 if path != "" { 53 t.Fatalf("LookPath path == %q when err != nil", path) 54 } 55 } 56
